icmp6.h revision 1.6
1 /* $NetBSD: icmp6.h,v 1.6 2000/02/28 12:08:21 itojun Exp $ */ 2 /* $KAME: icmp6.h,v 1.6 2000/02/24 16:34:46 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 #define NI_NODEADDR_FLAG_LINKLOCAL 0x1 327 #define NI_NODEADDR_FLAG_SITELOCAL 0x2 328 #define NI_NODEADDR_FLAG_GLOBAL 0x4 329 #define NI_NODEADDR_FLAG_ALL 0x8 330 #define NI_NODEADDR_FLAG_TRUNCATE 0x10 331 #define NI_NODEADDR_FLAG_ANYCAST 0x20 /* just experimental. not in spec */ 332 #elif BYTE_ORDER == LITTLE_ENDIAN 333 #define NI_SUPTYPE_FLAG_COMPRESS 0x0100 334 #define NI_FQDN_FLAG_VALIDTTL 0x0100 335 #define NI_NODEADDR_FLAG_LINKLOCAL 0x0100 336 #define NI_NODEADDR_FLAG_SITELOCAL 0x0200 337 #define NI_NODEADDR_FLAG_GLOBAL 0x0400 338 #define NI_NODEADDR_FLAG_ALL 0x0800 339 #define NI_NODEADDR_FLAG_TRUNCATE 0x1000 340 #define NI_NODEADDR_FLAG_ANYCAST 0x2000 /* just experimental. not in spec */ 341 #endif 342 343 struct ni_reply_fqdn { 344 u_int32_t ni_fqdn_ttl; /* TTL */ 345 u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */ 346 u_int8_t ni_fqdn_name[3]; /* XXX: alignment */ 347 }; 348 349 /* 350 * Router Renumbering. as router-renum-08.txt 351 */ 352 #if BYTE_ORDER == BIG_ENDIAN /* net byte order */ 353 struct icmp6_router_renum { /* router renumbering header */ 354 struct icmp6_hdr rr_hdr; 355 u_int8_t rr_segnum; 356 u_int8_t rr_test : 1; 357 u_int8_t rr_reqresult : 1; 358 u_int8_t rr_forceapply : 1; 359 u_int8_t rr_specsite : 1; 360 u_int8_t rr_prevdone : 1; 361 u_int8_t rr_flags_reserved : 3; 362 u_int16_t rr_maxdelay; 363 u_int32_t rr_reserved; 364 }; 365 #elif BYTE_ORDER == LITTLE_ENDIAN 366 struct icmp6_router_renum { /* router renumbering header */ 367 struct icmp6_hdr rr_hdr; 368 u_int8_t rr_segnum; 369 u_int8_t rr_flags_reserved : 3; 370 u_int8_t rr_prevdone : 1; 371 u_int8_t rr_specsite : 1; 372 u_int8_t rr_forceapply : 1; 373 u_int8_t rr_reqresult : 1; 374 u_int8_t rr_test : 1; 375 u_int16_t rr_maxdelay; 376 u_int32_t rr_reserved; 377 }; 378 #endif /* BYTE_ORDER */ 379 380 #define rr_type rr_hdr.icmp6_type 381 #define rr_code rr_hdr.icmp6_code 382 #define rr_cksum rr_hdr.icmp6_cksum 383 #define rr_seqnum rr_hdr.icmp6_data32[0] 384 385 struct rr_pco_match { /* match prefix part */ 386 u_int8_t rpm_code; 387 u_int8_t rpm_len; 388 u_int8_t rpm_ordinal; 389 u_int8_t rpm_matchlen; 390 u_int8_t rpm_minlen; 391 u_int8_t rpm_maxlen; 392 u_int16_t rpm_reserved; 393 struct in6_addr rpm_prefix; 394 }; 395 396 #define RPM_PCO_ADD 1 397 #define RPM_PCO_CHANGE 2 398 #define RPM_PCO_SETGLOBAL 3 399 #define RPM_PCO_MAX 4 400 401 #if BYTE_ORDER == BIG_ENDIAN /* net byte order */ 402 struct rr_pco_use { /* use prefix part */ 403 u_int8_t rpu_uselen; 404 u_int8_t rpu_keeplen; 405 u_int8_t rpu_mask_onlink : 1; 406 u_int8_t rpu_mask_autonomous : 1; 407 u_int8_t rpu_mask_reserved : 6; 408 u_int8_t rpu_onlink : 1; 409 u_int8_t rpu_autonomous : 1; 410 u_int8_t rpu_raflags_reserved : 6; 411 u_int32_t rpu_vltime; 412 u_int32_t rpu_pltime; 413 u_int32_t rpu_decr_vltime : 1; 414 u_int32_t rpu_decr_pltime : 1; 415 u_int32_t rpu_flags_reserved : 6; 416 u_int32_t rpu_reserved : 24; 417 struct in6_addr rpu_prefix; 418 }; 419 #elif BYTE_ORDER == LITTLE_ENDIAN 420 struct rr_pco_use { /* use prefix part */ 421 u_int8_t rpu_uselen; 422 u_int8_t rpu_keeplen; 423 u_int8_t rpu_mask_reserved : 6; 424 u_int8_t rpu_mask_autonomous : 1; 425 u_int8_t rpu_mask_onlink : 1; 426 u_int8_t rpu_raflags_reserved : 6; 427 u_int8_t rpu_autonomous : 1; 428 u_int8_t rpu_onlink : 1; 429 u_int32_t rpu_vltime; 430 u_int32_t rpu_pltime; 431 u_int32_t rpu_flags_reserved : 6; 432 u_int32_t rpu_decr_pltime : 1; 433 u_int32_t rpu_decr_vltime : 1; 434 u_int32_t rpu_reserved : 24; 435 struct in6_addr rpu_prefix; 436 }; 437 #endif /* BYTE_ORDER */ 438 439 #if BYTE_ORDER == BIG_ENDIAN /* net byte order */ 440 struct rr_result { /* router renumbering result message */ 441 u_int8_t rrr_reserved; 442 u_int8_t rrr_flags_reserved : 6; 443 u_int8_t rrr_outofbound : 1; 444 u_int8_t rrr_forbidden : 1; 445 u_int8_t rrr_ordinal; 446 u_int8_t rrr_matchedlen; 447 u_int32_t rrr_ifid; 448 struct in6_addr rrr_prefix; 449 }; 450 #elif BYTE_ORDER == LITTLE_ENDIAN 451 struct rr_result { /* router renumbering result message */ 452 u_int8_t rrr_reserved; 453 u_int8_t rrr_forbidden : 1; 454 u_int8_t rrr_outofbound : 1; 455 u_int8_t rrr_flags_reserved : 6; 456 u_int8_t rrr_ordinal; 457 u_int8_t rrr_matchedlen; 458 u_int32_t rrr_ifid; 459 struct in6_addr rrr_prefix; 460 }; 461 #endif /* BYTE_ORDER */ 462 463 /* 464 * icmp6 filter structures. 465 */ 466 467 struct icmp6_filter { 468 u_int32_t icmp6_filter[8]; 469 }; 470 471 #ifdef _KERNEL 472 #define ICMP6_FILTER_SETPASSALL(filterp) \ 473 do { \ 474 int i; u_char *p; \ 475 p = (u_char *)filterp; \ 476 for (i = 0; i < sizeof(struct icmp6_filter); i++) \ 477 p[i] = 0xff; \ 478 } while (0) 479 #define ICMP6_FILTER_SETBLOCKALL(filterp) \ 480 bzero(filterp, sizeof(struct icmp6_filter)) 481 #else /* _KERNEL */ 482 #define ICMP6_FILTER_SETPASSALL(filterp) \ 483 memset(filterp, 0xff, sizeof(struct icmp6_filter)) 484 #define ICMP6_FILTER_SETBLOCKALL(filterp) \ 485 memset(filterp, 0x00, sizeof(struct icmp6_filter)) 486 #endif /* _KERNEL */ 487 488 #define ICMP6_FILTER_SETPASS(type, filterp) \ 489 (((filterp)->icmp6_filter[(type) >> 5]) |= (1 << ((type) & 31))) 490 #define ICMP6_FILTER_SETBLOCK(type, filterp) \ 491 (((filterp)->icmp6_filter[(type) >> 5]) &= ~(1 << ((type) & 31))) 492 #define ICMP6_FILTER_WILLPASS(type, filterp) \ 493 ((((filterp)->icmp6_filter[(type) >> 5]) & (1 << ((type) & 31))) != 0) 494 #define ICMP6_FILTER_WILLBLOCK(type, filterp) \ 495 ((((filterp)->icmp6_filter[(type) >> 5]) & (1 << ((type) & 31))) == 0) 496 497 /* 498 * Variables related to this implementation 499 * of the internet control message protocol version 6. 500 */ 501 struct icmp6stat { 502 /* statistics related to icmp6 packets generated */ 503 u_quad_t icp6s_error; /* # of calls to icmp6_error */ 504 u_quad_t icp6s_canterror; /* no error 'cuz old was icmp */ 505 u_quad_t icp6s_toofreq; /* no error 'cuz rate limitation */ 506 u_quad_t icp6s_outhist[256]; 507 /* statistics related to input message processed */ 508 u_quad_t icp6s_badcode; /* icmp6_code out of range */ 509 u_quad_t icp6s_tooshort; /* packet < sizeof(struct icmp6_hdr) */ 510 u_quad_t icp6s_checksum; /* bad checksum */ 511 u_quad_t icp6s_badlen; /* calculated bound mismatch */ 512 u_quad_t icp6s_reflect; /* number of responses */ 513 u_quad_t icp6s_inhist[256]; 514 u_quad_t icp6s_nd_toomanyopt; /* too many ND options */ 515 }; 516 517 /* 518 * Names for ICMP sysctl objects 519 */ 520 #define ICMPV6CTL_STATS 1 521 #define ICMPV6CTL_REDIRACCEPT 2 /* accept/process redirects */ 522 #define ICMPV6CTL_REDIRTIMEOUT 3 /* redirect cache time */ 523 #define ICMPV6CTL_ERRRATELIMIT 5 /* ICMPv6 error rate limitation */ 524 #define ICMPV6CTL_ND6_PRUNE 6 525 #define ICMPV6CTL_ND6_DELAY 8 526 #define ICMPV6CTL_ND6_UMAXTRIES 9 527 #define ICMPV6CTL_ND6_MMAXTRIES 10 528 #define ICMPV6CTL_ND6_USELOOPBACK 11 529 /*#define ICMPV6CTL_ND6_PROXYALL 12 obsoleted, do not reuse here */ 530 #define ICMPV6CTL_NODEINFO 13 531 #define ICMPV6CTL_MAXID 14 532 533 #define ICMPV6CTL_NAMES { \ 534 { 0, 0 }, \ 535 { 0, 0 }, \ 536 { "rediraccept", CTLTYPE_INT }, \ 537 { "redirtimeout", CTLTYPE_INT }, \ 538 { 0, 0 }, \ 539 { "errratelimit", CTLTYPE_INT }, \ 540 { "nd6_prune", CTLTYPE_INT }, \ 541 { 0, 0 }, \ 542 { "nd6_delay", CTLTYPE_INT }, \ 543 { "nd6_umaxtries", CTLTYPE_INT }, \ 544 { "nd6_mmaxtries", CTLTYPE_INT }, \ 545 { "nd6_useloopback", CTLTYPE_INT }, \ 546 { 0, 0 }, \ 547 { "nodeinfo", CTLTYPE_INT }, \ 548 } 549 550 #define RTF_PROBEMTU RTF_PROTO1 551 552 #ifdef _KERNEL 553 # ifdef __STDC__ 554 struct rtentry; 555 struct rttimer; 556 struct in6_multi; 557 # endif 558 void icmp6_init __P((void)); 559 void icmp6_paramerror __P((struct mbuf *, int)); 560 void icmp6_error __P((struct mbuf *, int, int, int)); 561 int icmp6_input __P((struct mbuf **, int *, int)); 562 void icmp6_fasttimo __P((void)); 563 void icmp6_reflect __P((struct mbuf *, size_t)); 564 void icmp6_prepare __P((struct mbuf *)); 565 void icmp6_redirect_input __P((struct mbuf *, int)); 566 void icmp6_redirect_output __P((struct mbuf *, struct rtentry *)); 567 int icmp6_sysctl __P((int *, u_int, void *, size_t *, void *, size_t)); 568 569 /* XXX: is this the right place for these macros? */ 570 #define icmp6_ifstat_inc(ifp, tag) \ 571 do { \ 572 if ((ifp) && (ifp)->if_index <= if_index \ 573 && (ifp)->if_index < icmp6_ifstatmax \ 574 && icmp6_ifstat && icmp6_ifstat[(ifp)->if_index]) { \ 575 icmp6_ifstat[(ifp)->if_index]->tag++; \ 576 } \ 577 } while (0) 578 579 #define icmp6_ifoutstat_inc(ifp, type, code) \ 580 do { \ 581 icmp6_ifstat_inc(ifp, ifs6_out_msg); \ 582 if (type < ICMP6_INFOMSG_MASK) \ 583 icmp6_ifstat_inc(ifp, ifs6_out_error); \ 584 switch(type) { \ 585 case ICMP6_DST_UNREACH: \ 586 icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \ 587 if (code == ICMP6_DST_UNREACH_ADMIN) \ 588 icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \ 589 break; \ 590 case ICMP6_PACKET_TOO_BIG: \ 591 icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \ 592 break; \ 593 case ICMP6_TIME_EXCEEDED: \ 594 icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \ 595 break; \ 596 case ICMP6_PARAM_PROB: \ 597 icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \ 598 break; \ 599 case ICMP6_ECHO_REQUEST: \ 600 icmp6_ifstat_inc(ifp, ifs6_out_echo); \ 601 break; \ 602 case ICMP6_ECHO_REPLY: \ 603 icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \ 604 break; \ 605 case MLD6_LISTENER_QUERY: \ 606 icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \ 607 break; \ 608 case MLD6_LISTENER_REPORT: \ 609 icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \ 610 break; \ 611 case MLD6_LISTENER_DONE: \ 612 icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \ 613 break; \ 614 case ND_ROUTER_SOLICIT: \ 615 icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \ 616 break; \ 617 case ND_ROUTER_ADVERT: \ 618 icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \ 619 break; \ 620 case ND_NEIGHBOR_SOLICIT: \ 621 icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \ 622 break; \ 623 case ND_NEIGHBOR_ADVERT: \ 624 icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \ 625 break; \ 626 case ND_REDIRECT: \ 627 icmp6_ifstat_inc(ifp, ifs6_out_redirect); \ 628 break; \ 629 } \ 630 } while (0) 631 632 extern int icmp6_rediraccept; /* accept/process redirects */ 633 extern int icmp6_redirtimeout; /* cache time for redirect routes */ 634 #endif /* _KERNEL */ 635 636 #endif /* not _NETINET_ICMP6_H_ */ 637
Indexes created Wed Oct 15 16:09:53 GMT 2025