icmp6.h revision 1.7
1 /* $NetBSD: icmp6.h,v 1.7 2000/02/28 13:48:50 itojun Exp $ */ 2 /* $KAME: icmp6.h,v 1.8 2000/02/28 10:59:30 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, 1993 35 * The Regents of the University of California. All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by the University of 48 * California, Berkeley and its contributors. 49 * 4. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * @(#)ip_icmp.h 8.1 (Berkeley) 6/10/93 66 */ 67 68 #ifndef _NETINET_ICMP6_H_ 69 #define _NETINET_ICMP6_H_ 70 71 #define ICMPV6_PLD_MAXLEN 1232 /* IPV6_MMTU - sizeof(struct ip6_hdr) 72 - sizeof(struct icmp6_hdr) */ 73 74 struct icmp6_hdr { 75 u_int8_t icmp6_type; /* type field */ 76 u_int8_t icmp6_code; /* code field */ 77 u_int16_t icmp6_cksum; /* checksum field */ 78 union { 79 u_int32_t icmp6_un_data32[1]; /* type-specific field */ 80 u_int16_t icmp6_un_data16[2]; /* type-specific field */ 81 u_int8_t icmp6_un_data8[4]; /* type-specific field */ 82 } icmp6_dataun; 83 }; 84 85 #define icmp6_data32 icmp6_dataun.icmp6_un_data32 86 #define icmp6_data16 icmp6_dataun.icmp6_un_data16 87 #define icmp6_data8 icmp6_dataun.icmp6_un_data8 88 #define icmp6_pptr icmp6_data32[0] /* parameter prob */ 89 #define icmp6_mtu icmp6_data32[0] /* packet too big */ 90 #define icmp6_id icmp6_data16[0] /* echo request/reply */ 91 #define icmp6_seq icmp6_data16[1] /* echo request/reply */ 92 #define icmp6_maxdelay icmp6_data16[0] /* mcast group membership */ 93 94 #define ICMP6_DST_UNREACH 1 /* dest unreachable, codes: */ 95 #define ICMP6_PACKET_TOO_BIG 2 /* packet too big */ 96 #define ICMP6_TIME_EXCEEDED 3 /* time exceeded, code: */ 97 #define ICMP6_PARAM_PROB 4 /* ip6 header bad */ 98 99 #define ICMP6_ECHO_REQUEST 128 /* echo service */ 100 #define ICMP6_ECHO_REPLY 129 /* echo reply */ 101 #define ICMP6_MEMBERSHIP_QUERY 130 /* group membership query */ 102 #define MLD6_LISTENER_QUERY 130 /* multicast listener query */ 103 #define ICMP6_MEMBERSHIP_REPORT 131 /* group membership report */ 104 #define MLD6_LISTENER_REPORT 131 /* multicast listener report */ 105 #define ICMP6_MEMBERSHIP_REDUCTION 132 /* group membership termination */ 106 #define MLD6_LISTENER_DONE 132 /* multicast listener done */ 107 108 #define ND_ROUTER_SOLICIT 133 /* router solicitation */ 109 #define ND_ROUTER_ADVERT 134 /* router advertisment */ 110 #define ND_NEIGHBOR_SOLICIT 135 /* neighbor solicitation */ 111 #define ND_NEIGHBOR_ADVERT 136 /* neighbor advertisment */ 112 #define ND_REDIRECT 137 /* redirect */ 113 114 #define ICMP6_ROUTER_RENUMBERING 138 /* router renumbering */ 115 116 #define ICMP6_WRUREQUEST 139 /* who are you request */ 117 #define ICMP6_WRUREPLY 140 /* who are you reply */ 118 #define ICMP6_FQDN_QUERY 139 /* FQDN query */ 119 #define ICMP6_FQDN_REPLY 140 /* FQDN reply */ 120 #define ICMP6_NI_QUERY 139 /* node information request */ 121 #define ICMP6_NI_REPLY 140 /* node information reply */ 122 123 /* The definitions below are experimental. TBA */ 124 #define MLD6_MTRACE_RESP 141 /* mtrace response(to sender) */ 125 #define MLD6_MTRACE 142 /* mtrace messages */ 126 127 #define ICMP6_MAXTYPE 142 128 129 #define ICMP6_DST_UNREACH_NOROUTE 0 /* no route to destination */ 130 #define ICMP6_DST_UNREACH_ADMIN 1 /* administratively prohibited */ 131 #define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor(obsolete) */ 132 #define ICMP6_DST_UNREACH_BEYONDSCOPE 2 /* beyond scope of source address */ 133 #define ICMP6_DST_UNREACH_ADDR 3 /* address unreachable */ 134 #define ICMP6_DST_UNREACH_NOPORT 4 /* port unreachable */ 135 136 #define ICMP6_TIME_EXCEED_TRANSIT 0 /* ttl==0 in transit */ 137 #define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* ttl==0 in reass */ 138 139 #define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */ 140 #define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized next header */ 141 #define ICMP6_PARAMPROB_OPTION 2 /* unrecognized option */ 142 143 #define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */ 144 145 #define ICMP6_NI_SUCESS 0 /* node information successful reply */ 146 #define ICMP6_NI_REFUSED 1 /* node information request is refused */ 147 #define ICMP6_NI_UNKNOWN 2 /* unknown Qtype */ 148 149 #define ICMP6_ROUTER_RENUMBERING_COMMAND 0 /* rr command */ 150 #define ICMP6_ROUTER_RENUMBERING_RESULT 1 /* rr result */ 151 #define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 /* rr seq num reset */ 152 153 /* Used in kernel only */ 154 #define ND_REDIRECT_ONLINK 0 /* redirect to an on-link node */ 155 #define ND_REDIRECT_ROUTER 1 /* redirect to a better router */ 156 157 /* 158 * Multicast Listener Discovery 159 */ 160 struct mld6_hdr { 161 struct icmp6_hdr mld6_hdr; 162 struct in6_addr mld6_addr; /* multicast address */ 163 }; 164 165 #define mld6_type mld6_hdr.icmp6_type 166 #define mld6_code mld6_hdr.icmp6_code 167 #define mld6_cksum mld6_hdr.icmp6_cksum 168 #define mld6_maxdelay mld6_hdr.icmp6_data16[0] 169 #define mld6_reserved mld6_hdr.icmp6_data16[1] 170 171 /* 172 * Neighbor Discovery 173 */ 174 175 struct nd_router_solicit { /* router solicitation */ 176 struct icmp6_hdr nd_rs_hdr; 177 /* could be followed by options */ 178 }; 179 180 #define nd_rs_type nd_rs_hdr.icmp6_type 181 #define nd_rs_code nd_rs_hdr.icmp6_code 182 #define nd_rs_cksum nd_rs_hdr.icmp6_cksum 183 #define nd_rs_reserved nd_rs_hdr.icmp6_data32[0] 184 185 struct nd_router_advert { /* router advertisement */ 186 struct icmp6_hdr nd_ra_hdr; 187 u_int32_t nd_ra_reachable; /* reachable time */ 188 u_int32_t nd_ra_retransmit; /* retransmit timer */ 189 /* could be followed by options */ 190 }; 191 192 #define nd_ra_type nd_ra_hdr.icmp6_type 193 #define nd_ra_code nd_ra_hdr.icmp6_code 194 #define nd_ra_cksum nd_ra_hdr.icmp6_cksum 195 #define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0] 196 #define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1] 197 #define ND_RA_FLAG_MANAGED 0x80 198 #define ND_RA_FLAG_OTHER 0x40 199 #define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1] 200 201 struct nd_neighbor_solicit { /* neighbor solicitation */ 202 struct icmp6_hdr nd_ns_hdr; 203 struct in6_addr nd_ns_target; /*target address */ 204 /* could be followed by options */ 205 }; 206 207 #define nd_ns_type nd_ns_hdr.icmp6_type 208 #define nd_ns_code nd_ns_hdr.icmp6_code 209 #define nd_ns_cksum nd_ns_hdr.icmp6_cksum 210 #define nd_ns_reserved nd_ns_hdr.icmp6_data32[0] 211 212 struct nd_neighbor_advert { /* neighbor advertisement */ 213 struct icmp6_hdr nd_na_hdr; 214 struct in6_addr nd_na_target; /* target address */ 215 /* could be followed by options */ 216 }; 217 218 #define nd_na_type nd_na_hdr.icmp6_type 219 #define nd_na_code nd_na_hdr.icmp6_code 220 #define nd_na_cksum nd_na_hdr.icmp6_cksum 221 #define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0] 222 #if BYTE_ORDER == BIG_ENDIAN 223 #define ND_NA_FLAG_ROUTER 0x80000000 224 #define ND_NA_FLAG_SOLICITED 0x40000000 225 #define ND_NA_FLAG_OVERRIDE 0x20000000 226 #else 227 #if BYTE_ORDER == LITTLE_ENDIAN 228 #define ND_NA_FLAG_ROUTER 0x80 229 #define ND_NA_FLAG_SOLICITED 0x40 230 #define ND_NA_FLAG_OVERRIDE 0x20 231 #endif 232 #endif 233 234 struct nd_redirect { /* redirect */ 235 struct icmp6_hdr nd_rd_hdr; 236 struct in6_addr nd_rd_target; /* target address */ 237 struct in6_addr nd_rd_dst; /* destination address */ 238 /* could be followed by options */ 239 }; 240 241 #define nd_rd_type nd_rd_hdr.icmp6_type 242 #define nd_rd_code nd_rd_hdr.icmp6_code 243 #define nd_rd_cksum nd_rd_hdr.icmp6_cksum 244 #define nd_rd_reserved nd_rd_hdr.icmp6_data32[0] 245 246 struct nd_opt_hdr { /* Neighbor discovery option header */ 247 u_int8_t nd_opt_type; 248 u_int8_t nd_opt_len; 249 /* followed by option specific data*/ 250 }; 251 252 #define ND_OPT_SOURCE_LINKADDR 1 253 #define ND_OPT_TARGET_LINKADDR 2 254 #define ND_OPT_PREFIX_INFORMATION 3 255 #define ND_OPT_REDIRECTED_HEADER 4 256 #define ND_OPT_MTU 5 257 258 struct nd_opt_prefix_info { /* prefix information */ 259 u_int8_t nd_opt_pi_type; 260 u_int8_t nd_opt_pi_len; 261 u_int8_t nd_opt_pi_prefix_len; 262 u_int8_t nd_opt_pi_flags_reserved; 263 u_int32_t nd_opt_pi_valid_time; 264 u_int32_t nd_opt_pi_preferred_time; 265 u_int32_t nd_opt_pi_reserved2; 266 struct in6_addr nd_opt_pi_prefix; 267 }; 268 269 #define ND_OPT_PI_FLAG_ONLINK 0x80 270 #define ND_OPT_PI_FLAG_AUTO 0x40 271 272 struct nd_opt_rd_hdr { /* redirected header */ 273 u_int8_t nd_opt_rh_type; 274 u_int8_t nd_opt_rh_len; 275 u_int16_t nd_opt_rh_reserved1; 276 u_int32_t nd_opt_rh_reserved2; 277 /* followed by IP header and data */ 278 }; 279 280 struct nd_opt_mtu { /* MTU option */ 281 u_int8_t nd_opt_mtu_type; 282 u_int8_t nd_opt_mtu_len; 283 u_int16_t nd_opt_mtu_reserved; 284 u_int32_t nd_opt_mtu_mtu; 285 }; 286 287 /* 288 * icmp6 namelookup 289 */ 290 291 struct icmp6_namelookup { 292 struct icmp6_hdr icmp6_nl_hdr; 293 u_int8_t icmp6_nl_nonce[8]; 294 u_int32_t icmp6_nl_ttl; 295 #if 0 296 u_int8_t icmp6_nl_len; 297 u_int8_t icmp6_nl_name[3]; 298 #endif 299 /* could be followed by options */ 300 }; 301 302 /* 303 * icmp6 node information 304 */ 305 struct icmp6_nodeinfo { 306 struct icmp6_hdr icmp6_ni_hdr; 307 u_int8_t icmp6_ni_nonce[8]; 308 /* could be followed by reply data */ 309 }; 310 311 #define ni_type icmp6_ni_hdr.icmp6_type 312 #define ni_code icmp6_ni_hdr.icmp6_code 313 #define ni_cksum icmp6_ni_hdr.icmp6_cksum 314 #define ni_qtype icmp6_ni_hdr.icmp6_data16[0] 315 #define ni_flags icmp6_ni_hdr.icmp6_data16[1] 316 317 318 #define NI_QTYPE_NOOP 0 /* NOOP */ 319 #define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes */ 320 #define NI_QTYPE_FQDN 2 /* FQDN */ 321 #define NI_QTYPE_NODEADDR 3 /* Node Addresses. XXX: spec says 2, but it may be a typo... */ 322 323 #if BYTE_ORDER == BIG_ENDIAN 324 #define NI_SUPTYPE_FLAG_COMPRESS 0x1 325 #define NI_FQDN_FLAG_VALIDTTL 0x1 326 #elif BYTE_ORDER == LITTLE_ENDIAN 327 #define NI_SUPTYPE_FLAG_COMPRESS 0x0100 328 #define NI_FQDN_FLAG_VALIDTTL 0x0100 329 #endif 330 331 #ifdef NAME_LOOKUPS_04 332 #if BYTE_ORDER == BIG_ENDIAN 333 #define NI_NODEADDR_FLAG_LINKLOCAL 0x1 334 #define NI_NODEADDR_FLAG_SITELOCAL 0x2 335 #define NI_NODEADDR_FLAG_GLOBAL 0x4 336 #define NI_NODEADDR_FLAG_ALL 0x8 337 #define NI_NODEADDR_FLAG_TRUNCATE 0x10 338 #define NI_NODEADDR_FLAG_ANYCAST 0x20 /* just experimental. not in spec */ 339 #elif BYTE_ORDER == LITTLE_ENDIAN 340 #define NI_NODEADDR_FLAG_LINKLOCAL 0x0100 341 #define NI_NODEADDR_FLAG_SITELOCAL 0x0200 342 #define NI_NODEADDR_FLAG_GLOBAL 0x0400 343 #define NI_NODEADDR_FLAG_ALL 0x0800 344 #define NI_NODEADDR_FLAG_TRUNCATE 0x1000 345 #define NI_NODEADDR_FLAG_ANYCAST 0x2000 /* just experimental. not in spec */ 346 #endif 347 #else /* draft-ietf-ipngwg-icmp-name-lookups-05 (and later?) */ 348 #if BYTE_ORDER == BIG_ENDIAN 349 #define NI_NODEADDR_FLAG_TRUNCATE 0x1 350 #define NI_NODEADDR_FLAG_ALL 0x2 351 #define NI_NODEADDR_FLAG_COMPAT 0x4 352 #define NI_NODEADDR_FLAG_LINKLOCAL 0x8 353 #define NI_NODEADDR_FLAG_SITELOCAL 0x10 354 #define NI_NODEADDR_FLAG_GLOBAL 0x20 355 #define NI_NODEADDR_FLAG_ANYCAST 0x40 /* just experimental. not in spec */ 356 #elif BYTE_ORDER == LITTLE_ENDIAN 357 #define NI_NODEADDR_FLAG_TRUNCATE 0x0100 358 #define NI_NODEADDR_FLAG_ALL 0x0200 359 #define NI_NODEADDR_FLAG_COMPAT 0x0400 360 #define NI_NODEADDR_FLAG_LINKLOCAL 0x0800 361 #define NI_NODEADDR_FLAG_SITELOCAL 0x1000 362 #define NI_NODEADDR_FLAG_GLOBAL 0x2000 363 #define NI_NODEADDR_FLAG_ANYCAST 0x4000 /* just experimental. not in spec */ 364 #endif 365 #endif 366 367 struct ni_reply_fqdn { 368 u_int32_t ni_fqdn_ttl; /* TTL */ 369 u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */ 370 u_int8_t ni_fqdn_name[3]; /* XXX: alignment */ 371 }; 372 373 /* 374 * Router Renumbering. as router-renum-08.txt 375 */ 376 #if BYTE_ORDER == BIG_ENDIAN /* net byte order */ 377 struct icmp6_router_renum { /* router renumbering header */ 378 struct icmp6_hdr rr_hdr; 379 u_int8_t rr_segnum; 380 u_int8_t rr_test : 1; 381 u_int8_t rr_reqresult : 1; 382 u_int8_t rr_forceapply : 1; 383 u_int8_t rr_specsite : 1; 384 u_int8_t rr_prevdone : 1; 385 u_int8_t rr_flags_reserved : 3; 386 u_int16_t rr_maxdelay; 387 u_int32_t rr_reserved; 388 }; 389 #elif BYTE_ORDER == LITTLE_ENDIAN 390 struct icmp6_router_renum { /* router renumbering header */ 391 struct icmp6_hdr rr_hdr; 392 u_int8_t rr_segnum; 393 u_int8_t rr_flags_reserved : 3; 394 u_int8_t rr_prevdone : 1; 395 u_int8_t rr_specsite : 1; 396 u_int8_t rr_forceapply : 1; 397 u_int8_t rr_reqresult : 1; 398 u_int8_t rr_test : 1; 399 u_int16_t rr_maxdelay; 400 u_int32_t rr_reserved; 401 }; 402 #endif /* BYTE_ORDER */ 403 404 #define rr_type rr_hdr.icmp6_type 405 #define rr_code rr_hdr.icmp6_code 406 #define rr_cksum rr_hdr.icmp6_cksum 407 #define rr_seqnum rr_hdr.icmp6_data32[0] 408 409 struct rr_pco_match { /* match prefix part */ 410 u_int8_t rpm_code; 411 u_int8_t rpm_len; 412 u_int8_t rpm_ordinal; 413 u_int8_t rpm_matchlen; 414 u_int8_t rpm_minlen; 415 u_int8_t rpm_maxlen; 416 u_int16_t rpm_reserved; 417 struct in6_addr rpm_prefix; 418 }; 419 420 #define RPM_PCO_ADD 1 421 #define RPM_PCO_CHANGE 2 422 #define RPM_PCO_SETGLOBAL 3 423 #define RPM_PCO_MAX 4 424 425 #if BYTE_ORDER == BIG_ENDIAN /* net byte order */ 426 struct rr_pco_use { /* use prefix part */ 427 u_int8_t rpu_uselen; 428 u_int8_t rpu_keeplen; 429 u_int8_t rpu_mask_onlink : 1; 430 u_int8_t rpu_mask_autonomous : 1; 431 u_int8_t rpu_mask_reserved : 6; 432 u_int8_t rpu_onlink : 1; 433 u_int8_t rpu_autonomous : 1; 434 u_int8_t rpu_raflags_reserved : 6; 435 u_int32_t rpu_vltime; 436 u_int32_t rpu_pltime; 437 u_int32_t rpu_decr_vltime : 1; 438 u_int32_t rpu_decr_pltime : 1; 439 u_int32_t rpu_flags_reserved : 6; 440 u_int32_t rpu_reserved : 24; 441 struct in6_addr rpu_prefix; 442 }; 443 #elif BYTE_ORDER == LITTLE_ENDIAN 444 struct rr_pco_use { /* use prefix part */ 445 u_int8_t rpu_uselen; 446 u_int8_t rpu_keeplen; 447 u_int8_t rpu_mask_reserved : 6; 448 u_int8_t rpu_mask_autonomous : 1; 449 u_int8_t rpu_mask_onlink : 1; 450 u_int8_t rpu_raflags_reserved : 6; 451 u_int8_t rpu_autonomous : 1; 452 u_int8_t rpu_onlink : 1; 453 u_int32_t rpu_vltime; 454 u_int32_t rpu_pltime; 455 u_int32_t rpu_flags_reserved : 6; 456 u_int32_t rpu_decr_pltime : 1; 457 u_int32_t rpu_decr_vltime : 1; 458 u_int32_t rpu_reserved : 24; 459 struct in6_addr rpu_prefix; 460 }; 461 #endif /* BYTE_ORDER */ 462 463 #if BYTE_ORDER == BIG_ENDIAN /* net byte order */ 464 struct rr_result { /* router renumbering result message */ 465 u_int8_t rrr_reserved; 466 u_int8_t rrr_flags_reserved : 6; 467 u_int8_t rrr_outofbound : 1; 468 u_int8_t rrr_forbidden : 1; 469 u_int8_t rrr_ordinal; 470 u_int8_t rrr_matchedlen; 471 u_int32_t rrr_ifid; 472 struct in6_addr rrr_prefix; 473 }; 474 #elif BYTE_ORDER == LITTLE_ENDIAN 475 struct rr_result { /* router renumbering result message */ 476 u_int8_t rrr_reserved; 477 u_int8_t rrr_forbidden : 1; 478 u_int8_t rrr_outofbound : 1; 479 u_int8_t rrr_flags_reserved : 6; 480 u_int8_t rrr_ordinal; 481 u_int8_t rrr_matchedlen; 482 u_int32_t rrr_ifid; 483 struct in6_addr rrr_prefix; 484 }; 485 #endif /* BYTE_ORDER */ 486 487 /* 488 * icmp6 filter structures. 489 */ 490 491 struct icmp6_filter { 492 u_int32_t icmp6_filter[8]; 493 }; 494 495 #ifdef _KERNEL 496 #define ICMP6_FILTER_SETPASSALL(filterp) \ 497 do { \ 498 int i; u_char *p; \ 499 p = (u_char *)filterp; \ 500 for (i = 0; i < sizeof(struct icmp6_filter); i++) \ 501 p[i] = 0xff; \ 502 } while (0) 503 #define ICMP6_FILTER_SETBLOCKALL(filterp) \ 504 bzero(filterp, sizeof(struct icmp6_filter)) 505 #else /* _KERNEL */ 506 #define ICMP6_FILTER_SETPASSALL(filterp) \ 507 memset(filterp, 0xff, sizeof(struct icmp6_filter)) 508 #define ICMP6_FILTER_SETBLOCKALL(filterp) \ 509 memset(filterp, 0x00, sizeof(struct icmp6_filter)) 510 #endif /* _KERNEL */ 511 512 #define ICMP6_FILTER_SETPASS(type, filterp) \ 513 (((filterp)->icmp6_filter[(type) >> 5]) |= (1 << ((type) & 31))) 514 #define ICMP6_FILTER_SETBLOCK(type, filterp) \ 515 (((filterp)->icmp6_filter[(type) >> 5]) &= ~(1 << ((type) & 31))) 516 #define ICMP6_FILTER_WILLPASS(type, filterp) \ 517 ((((filterp)->icmp6_filter[(type) >> 5]) & (1 << ((type) & 31))) != 0) 518 #define ICMP6_FILTER_WILLBLOCK(type, filterp) \ 519 ((((filterp)->icmp6_filter[(type) >> 5]) & (1 << ((type) & 31))) == 0) 520 521 /* 522 * Variables related to this implementation 523 * of the internet control message protocol version 6. 524 */ 525 struct icmp6stat { 526 /* statistics related to icmp6 packets generated */ 527 u_quad_t icp6s_error; /* # of calls to icmp6_error */ 528 u_quad_t icp6s_canterror; /* no error 'cuz old was icmp */ 529 u_quad_t icp6s_toofreq; /* no error 'cuz rate limitation */ 530 u_quad_t icp6s_outhist[256]; 531 /* statistics related to input message processed */ 532 u_quad_t icp6s_badcode; /* icmp6_code out of range */ 533 u_quad_t icp6s_tooshort; /* packet < sizeof(struct icmp6_hdr) */ 534 u_quad_t icp6s_checksum; /* bad checksum */ 535 u_quad_t icp6s_badlen; /* calculated bound mismatch */ 536 u_quad_t icp6s_reflect; /* number of responses */ 537 u_quad_t icp6s_inhist[256]; 538 u_quad_t icp6s_nd_toomanyopt; /* too many ND options */ 539 }; 540 541 /* 542 * Names for ICMP sysctl objects 543 */ 544 #define ICMPV6CTL_STATS 1 545 #define ICMPV6CTL_REDIRACCEPT 2 /* accept/process redirects */ 546 #define ICMPV6CTL_REDIRTIMEOUT 3 /* redirect cache time */ 547 #define ICMPV6CTL_ERRRATELIMIT 5 /* ICMPv6 error rate limitation */ 548 #define ICMPV6CTL_ND6_PRUNE 6 549 #define ICMPV6CTL_ND6_DELAY 8 550 #define ICMPV6CTL_ND6_UMAXTRIES 9 551 #define ICMPV6CTL_ND6_MMAXTRIES 10 552 #define ICMPV6CTL_ND6_USELOOPBACK 11 553 /*#define ICMPV6CTL_ND6_PROXYALL 12 obsoleted, do not reuse here */ 554 #define ICMPV6CTL_NODEINFO 13 555 #define ICMPV6CTL_MAXID 14 556 557 #define ICMPV6CTL_NAMES { \ 558 { 0, 0 }, \ 559 { 0, 0 }, \ 560 { "rediraccept", CTLTYPE_INT }, \ 561 { "redirtimeout", CTLTYPE_INT }, \ 562 { 0, 0 }, \ 563 { "errratelimit", CTLTYPE_INT }, \ 564 { "nd6_prune", CTLTYPE_INT }, \ 565 { 0, 0 }, \ 566 { "nd6_delay", CTLTYPE_INT }, \ 567 { "nd6_umaxtries", CTLTYPE_INT }, \ 568 { "nd6_mmaxtries", CTLTYPE_INT }, \ 569 { "nd6_useloopback", CTLTYPE_INT }, \ 570 { 0, 0 }, \ 571 { "nodeinfo", CTLTYPE_INT }, \ 572 } 573 574 #define RTF_PROBEMTU RTF_PROTO1 575 576 #ifdef _KERNEL 577 # ifdef __STDC__ 578 struct rtentry; 579 struct rttimer; 580 struct in6_multi; 581 # endif 582 void icmp6_init __P((void)); 583 void icmp6_paramerror __P((struct mbuf *, int)); 584 void icmp6_error __P((struct mbuf *, int, int, int)); 585 int icmp6_input __P((struct mbuf **, int *, int)); 586 void icmp6_fasttimo __P((void)); 587 void icmp6_reflect __P((struct mbuf *, size_t)); 588 void icmp6_prepare __P((struct mbuf *)); 589 void icmp6_redirect_input __P((struct mbuf *, int)); 590 void icmp6_redirect_output __P((struct mbuf *, struct rtentry *)); 591 int icmp6_sysctl __P((int *, u_int, void *, size_t *, void *, size_t)); 592 593 /* XXX: is this the right place for these macros? */ 594 #define icmp6_ifstat_inc(ifp, tag) \ 595 do { \ 596 if ((ifp) && (ifp)->if_index <= if_index \ 597 && (ifp)->if_index < icmp6_ifstatmax \ 598 && icmp6_ifstat && icmp6_ifstat[(ifp)->if_index]) { \ 599 icmp6_ifstat[(ifp)->if_index]->tag++; \ 600 } \ 601 } while (0) 602 603 #define icmp6_ifoutstat_inc(ifp, type, code) \ 604 do { \ 605 icmp6_ifstat_inc(ifp, ifs6_out_msg); \ 606 if (type < ICMP6_INFOMSG_MASK) \ 607 icmp6_ifstat_inc(ifp, ifs6_out_error); \ 608 switch(type) { \ 609 case ICMP6_DST_UNREACH: \ 610 icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \ 611 if (code == ICMP6_DST_UNREACH_ADMIN) \ 612 icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \ 613 break; \ 614 case ICMP6_PACKET_TOO_BIG: \ 615 icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \ 616 break; \ 617 case ICMP6_TIME_EXCEEDED: \ 618 icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \ 619 break; \ 620 case ICMP6_PARAM_PROB: \ 621 icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \ 622 break; \ 623 case ICMP6_ECHO_REQUEST: \ 624 icmp6_ifstat_inc(ifp, ifs6_out_echo); \ 625 break; \ 626 case ICMP6_ECHO_REPLY: \ 627 icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \ 628 break; \ 629 case MLD6_LISTENER_QUERY: \ 630 icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \ 631 break; \ 632 case MLD6_LISTENER_REPORT: \ 633 icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \ 634 break; \ 635 case MLD6_LISTENER_DONE: \ 636 icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \ 637 break; \ 638 case ND_ROUTER_SOLICIT: \ 639 icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \ 640 break; \ 641 case ND_ROUTER_ADVERT: \ 642 icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \ 643 break; \ 644 case ND_NEIGHBOR_SOLICIT: \ 645 icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \ 646 break; \ 647 case ND_NEIGHBOR_ADVERT: \ 648 icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \ 649 break; \ 650 case ND_REDIRECT: \ 651 icmp6_ifstat_inc(ifp, ifs6_out_redirect); \ 652 break; \ 653 } \ 654 } while (0) 655 656 extern int icmp6_rediraccept; /* accept/process redirects */ 657 extern int icmp6_redirtimeout; /* cache time for redirect routes */ 658 #endif /* _KERNEL */ 659 660 #endif /* not _NETINET_ICMP6_H_ */ 661
Indexes created Wed Oct 15 16:09:53 GMT 2025