1 /* $FreeBSD$ */ 2 /* $KAME: icmp6.h,v 1.46 2001/04/27 15:09:48 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 * 4. Neither the name of the University nor the names of its contributors 46 * may be used to endorse or promote products derived from this software 47 * without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 59 * SUCH DAMAGE. 60 * 61 * @(#)ip_icmp.h 8.1 (Berkeley) 6/10/93 62 */ 63 64 #ifndef _NETINET_ICMP6_H_ 65 #define _NETINET_ICMP6_H_ 66 67 #define ICMPV6_PLD_MAXLEN 1232 /* IPV6_MMTU - sizeof(struct ip6_hdr) 68 - sizeof(struct icmp6_hdr) */ 69 70 struct icmp6_hdr { 71 u_int8_t icmp6_type; /* type field */ 72 u_int8_t icmp6_code; /* code field */ 73 u_int16_t icmp6_cksum; /* checksum field */ 74 union { 75 u_int32_t icmp6_un_data32[1]; /* type-specific field */ 76 u_int16_t icmp6_un_data16[2]; /* type-specific field */ 77 u_int8_t icmp6_un_data8[4]; /* type-specific field */ 78 } icmp6_dataun; 79 } __packed; 80 81 #define icmp6_data32 icmp6_dataun.icmp6_un_data32 82 #define icmp6_data16 icmp6_dataun.icmp6_un_data16 83 #define icmp6_data8 icmp6_dataun.icmp6_un_data8 84 #define icmp6_pptr icmp6_data32[0] /* parameter prob */ 85 #define icmp6_mtu icmp6_data32[0] /* packet too big */ 86 #define icmp6_id icmp6_data16[0] /* echo request/reply */ 87 #define icmp6_seq icmp6_data16[1] /* echo request/reply */ 88 #define icmp6_maxdelay icmp6_data16[0] /* mcast group membership */ 89 90 #define ICMP6_DST_UNREACH 1 /* dest unreachable, codes: */ 91 #define ICMP6_PACKET_TOO_BIG 2 /* packet too big */ 92 #define ICMP6_TIME_EXCEEDED 3 /* time exceeded, code: */ 93 #define ICMP6_PARAM_PROB 4 /* ip6 header bad */ 94 95 #define ICMP6_ECHO_REQUEST 128 /* echo service */ 96 #define ICMP6_ECHO_REPLY 129 /* echo reply */ 97 #define MLD_LISTENER_QUERY 130 /* multicast listener query */ 98 #define MLD_LISTENER_REPORT 131 /* multicast listener report */ 99 #define MLD_LISTENER_DONE 132 /* multicast listener done */ 100 #define MLD_LISTENER_REDUCTION MLD_LISTENER_DONE /* RFC3542 definition */ 101 102 /* RFC2292 decls */ 103 #define ICMP6_MEMBERSHIP_QUERY 130 /* group membership query */ 104 #define ICMP6_MEMBERSHIP_REPORT 131 /* group membership report */ 105 #define ICMP6_MEMBERSHIP_REDUCTION 132 /* group membership termination */ 106 107 #ifndef _KERNEL 108 /* the followings are for backward compatibility to old KAME apps. */ 109 #define MLD6_LISTENER_QUERY MLD_LISTENER_QUERY 110 #define MLD6_LISTENER_REPORT MLD_LISTENER_REPORT 111 #define MLD6_LISTENER_DONE MLD_LISTENER_DONE 112 #endif 113 114 #define ND_ROUTER_SOLICIT 133 /* router solicitation */ 115 #define ND_ROUTER_ADVERT 134 /* router advertisement */ 116 #define ND_NEIGHBOR_SOLICIT 135 /* neighbor solicitation */ 117 #define ND_NEIGHBOR_ADVERT 136 /* neighbor advertisement */ 118 #define ND_REDIRECT 137 /* redirect */ 119 120 #define ICMP6_ROUTER_RENUMBERING 138 /* router renumbering */ 121 122 #define ICMP6_WRUREQUEST 139 /* who are you request */ 123 #define ICMP6_WRUREPLY 140 /* who are you reply */ 124 #define ICMP6_FQDN_QUERY 139 /* FQDN query */ 125 #define ICMP6_FQDN_REPLY 140 /* FQDN reply */ 126 #define ICMP6_NI_QUERY 139 /* node information request */ 127 #define ICMP6_NI_REPLY 140 /* node information reply */ 128 129 /* The definitions below are experimental. TBA */ 130 #define MLD_MTRACE_RESP 200 /* mtrace resp (to sender) */ 131 #define MLD_MTRACE 201 /* mtrace messages */ 132 133 #ifndef _KERNEL 134 #define MLD6_MTRACE_RESP MLD_MTRACE_RESP 135 #define MLD6_MTRACE MLD_MTRACE 136 #endif 137 138 #define ICMP6_MAXTYPE 201 139 140 #define ICMP6_DST_UNREACH_NOROUTE 0 /* no route to destination */ 141 #define ICMP6_DST_UNREACH_ADMIN 1 /* administratively prohibited */ 142 #define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor(obsolete) */ 143 #define ICMP6_DST_UNREACH_BEYONDSCOPE 2 /* beyond scope of source address */ 144 #define ICMP6_DST_UNREACH_ADDR 3 /* address unreachable */ 145 #define ICMP6_DST_UNREACH_NOPORT 4 /* port unreachable */ 146 147 #define ICMP6_TIME_EXCEED_TRANSIT 0 /* ttl==0 in transit */ 148 #define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* ttl==0 in reass */ 149 150 #define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */ 151 #define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized next header */ 152 #define ICMP6_PARAMPROB_OPTION 2 /* unrecognized option */ 153 154 #define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */ 155 156 #define ICMP6_NI_SUBJ_IPV6 0 /* Query Subject is an IPv6 address */ 157 #define ICMP6_NI_SUBJ_FQDN 1 /* Query Subject is a Domain name */ 158 #define ICMP6_NI_SUBJ_IPV4 2 /* Query Subject is an IPv4 address */ 159 160 #define ICMP6_NI_SUCCESS 0 /* node information successful reply */ 161 #define ICMP6_NI_REFUSED 1 /* node information request is refused */ 162 #define ICMP6_NI_UNKNOWN 2 /* unknown Qtype */ 163 164 #define ICMP6_ROUTER_RENUMBERING_COMMAND 0 /* rr command */ 165 #define ICMP6_ROUTER_RENUMBERING_RESULT 1 /* rr result */ 166 #define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 /* rr seq num reset */ 167 168 /* Used in kernel only */ 169 #define ND_REDIRECT_ONLINK 0 /* redirect to an on-link node */ 170 #define ND_REDIRECT_ROUTER 1 /* redirect to a better router */ 171 172 /* 173 * Multicast Listener Discovery 174 */ 175 struct mld_hdr { 176 struct icmp6_hdr mld_icmp6_hdr; 177 struct in6_addr mld_addr; /* multicast address */ 178 } __packed; 179 180 /* definitions to provide backward compatibility to old KAME applications */ 181 #ifndef _KERNEL 182 #define mld6_hdr mld_hdr 183 #define mld6_type mld_type 184 #define mld6_code mld_code 185 #define mld6_cksum mld_cksum 186 #define mld6_maxdelay mld_maxdelay 187 #define mld6_reserved mld_reserved 188 #define mld6_addr mld_addr 189 #endif 190 191 /* shortcut macro definitions */ 192 #define mld_type mld_icmp6_hdr.icmp6_type 193 #define mld_code mld_icmp6_hdr.icmp6_code 194 #define mld_cksum mld_icmp6_hdr.icmp6_cksum 195 #define mld_maxdelay mld_icmp6_hdr.icmp6_data16[0] 196 #define mld_reserved mld_icmp6_hdr.icmp6_data16[1] 197 198 /* 199 * Neighbor Discovery 200 */ 201 202 struct nd_router_solicit { /* router solicitation */ 203 struct icmp6_hdr nd_rs_hdr; 204 /* could be followed by options */ 205 } __packed; 206 207 #define nd_rs_type nd_rs_hdr.icmp6_type 208 #define nd_rs_code nd_rs_hdr.icmp6_code 209 #define nd_rs_cksum nd_rs_hdr.icmp6_cksum 210 #define nd_rs_reserved nd_rs_hdr.icmp6_data32[0] 211 212 struct nd_router_advert { /* router advertisement */ 213 struct icmp6_hdr nd_ra_hdr; 214 u_int32_t nd_ra_reachable; /* reachable time */ 215 u_int32_t nd_ra_retransmit; /* retransmit timer */ 216 /* could be followed by options */ 217 } __packed; 218 219 #define nd_ra_type nd_ra_hdr.icmp6_type 220 #define nd_ra_code nd_ra_hdr.icmp6_code 221 #define nd_ra_cksum nd_ra_hdr.icmp6_cksum 222 #define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0] 223 #define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1] 224 #define ND_RA_FLAG_MANAGED 0x80 225 #define ND_RA_FLAG_OTHER 0x40 226 #define ND_RA_FLAG_HA 0x20 227 228 /* 229 * Router preference values based on draft-draves-ipngwg-router-selection-01. 230 * These are non-standard definitions. 231 */ 232 #define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */ 233 234 #define ND_RA_FLAG_RTPREF_HIGH 0x08 /* 00001000 */ 235 #define ND_RA_FLAG_RTPREF_MEDIUM 0x00 /* 00000000 */ 236 #define ND_RA_FLAG_RTPREF_LOW 0x18 /* 00011000 */ 237 #define ND_RA_FLAG_RTPREF_RSV 0x10 /* 00010000 */ 238 239 #define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1] 240 241 struct nd_neighbor_solicit { /* neighbor solicitation */ 242 struct icmp6_hdr nd_ns_hdr; 243 struct in6_addr nd_ns_target; /*target address */ 244 /* could be followed by options */ 245 } __packed; 246 247 #define nd_ns_type nd_ns_hdr.icmp6_type 248 #define nd_ns_code nd_ns_hdr.icmp6_code 249 #define nd_ns_cksum nd_ns_hdr.icmp6_cksum 250 #define nd_ns_reserved nd_ns_hdr.icmp6_data32[0] 251 252 struct nd_neighbor_advert { /* neighbor advertisement */ 253 struct icmp6_hdr nd_na_hdr; 254 struct in6_addr nd_na_target; /* target address */ 255 /* could be followed by options */ 256 } __packed; 257 258 #define nd_na_type nd_na_hdr.icmp6_type 259 #define nd_na_code nd_na_hdr.icmp6_code 260 #define nd_na_cksum nd_na_hdr.icmp6_cksum 261 #define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0] 262 #if BYTE_ORDER == BIG_ENDIAN 263 #define ND_NA_FLAG_ROUTER 0x80000000 264 #define ND_NA_FLAG_SOLICITED 0x40000000 265 #define ND_NA_FLAG_OVERRIDE 0x20000000 266 #else 267 #if BYTE_ORDER == LITTLE_ENDIAN 268 #define ND_NA_FLAG_ROUTER 0x80 269 #define ND_NA_FLAG_SOLICITED 0x40 270 #define ND_NA_FLAG_OVERRIDE 0x20 271 #endif 272 #endif 273 274 struct nd_redirect { /* redirect */ 275 struct icmp6_hdr nd_rd_hdr; 276 struct in6_addr nd_rd_target; /* target address */ 277 struct in6_addr nd_rd_dst; /* destination address */ 278 /* could be followed by options */ 279 } __packed; 280 281 #define nd_rd_type nd_rd_hdr.icmp6_type 282 #define nd_rd_code nd_rd_hdr.icmp6_code 283 #define nd_rd_cksum nd_rd_hdr.icmp6_cksum 284 #define nd_rd_reserved nd_rd_hdr.icmp6_data32[0] 285 286 struct nd_opt_hdr { /* Neighbor discovery option header */ 287 u_int8_t nd_opt_type; 288 u_int8_t nd_opt_len; 289 /* followed by option specific data*/ 290 } __packed; 291 292 #define ND_OPT_SOURCE_LINKADDR 1 293 #define ND_OPT_TARGET_LINKADDR 2 294 #define ND_OPT_PREFIX_INFORMATION 3 295 #define ND_OPT_REDIRECTED_HEADER 4 296 #define ND_OPT_MTU 5 297 298 #define ND_OPT_ROUTE_INFO 200 /* draft-ietf-ipngwg-router-preference, not officially assigned yet */ 299 300 struct nd_opt_prefix_info { /* prefix information */ 301 u_int8_t nd_opt_pi_type; 302 u_int8_t nd_opt_pi_len; 303 u_int8_t nd_opt_pi_prefix_len; 304 u_int8_t nd_opt_pi_flags_reserved; 305 u_int32_t nd_opt_pi_valid_time; 306 u_int32_t nd_opt_pi_preferred_time; 307 u_int32_t nd_opt_pi_reserved2; 308 struct in6_addr nd_opt_pi_prefix; 309 } __packed; 310 311 #define ND_OPT_PI_FLAG_ONLINK 0x80 312 #define ND_OPT_PI_FLAG_AUTO 0x40 313 314 struct nd_opt_rd_hdr { /* redirected header */ 315 u_int8_t nd_opt_rh_type; 316 u_int8_t nd_opt_rh_len; 317 u_int16_t nd_opt_rh_reserved1; 318 u_int32_t nd_opt_rh_reserved2; 319 /* followed by IP header and data */ 320 } __packed; 321 322 struct nd_opt_mtu { /* MTU option */ 323 u_int8_t nd_opt_mtu_type; 324 u_int8_t nd_opt_mtu_len; 325 u_int16_t nd_opt_mtu_reserved; 326 u_int32_t nd_opt_mtu_mtu; 327 } __packed; 328 329 struct nd_opt_route_info { /* route info */ 330 u_int8_t nd_opt_rti_type; 331 u_int8_t nd_opt_rti_len; 332 u_int8_t nd_opt_rti_prefixlen; 333 u_int8_t nd_opt_rti_flags; 334 u_int32_t nd_opt_rti_lifetime; 335 /* prefix follows */ 336 } __packed; 337 338 /* 339 * icmp6 namelookup 340 */ 341 342 struct icmp6_namelookup { 343 struct icmp6_hdr icmp6_nl_hdr; 344 u_int8_t icmp6_nl_nonce[8]; 345 int32_t icmp6_nl_ttl; 346 #if 0 347 u_int8_t icmp6_nl_len; 348 u_int8_t icmp6_nl_name[3]; 349 #endif 350 /* could be followed by options */ 351 } __packed; 352 353 /* 354 * icmp6 node information 355 */ 356 struct icmp6_nodeinfo { 357 struct icmp6_hdr icmp6_ni_hdr; 358 u_int8_t icmp6_ni_nonce[8]; 359 /* could be followed by reply data */ 360 } __packed; 361 362 #define ni_type icmp6_ni_hdr.icmp6_type 363 #define ni_code icmp6_ni_hdr.icmp6_code 364 #define ni_cksum icmp6_ni_hdr.icmp6_cksum 365 #define ni_qtype icmp6_ni_hdr.icmp6_data16[0] 366 #define ni_flags icmp6_ni_hdr.icmp6_data16[1] 367 368 #define NI_QTYPE_NOOP 0 /* NOOP */ 369 #define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes */ 370 #define NI_QTYPE_FQDN 2 /* FQDN (draft 04) */ 371 #define NI_QTYPE_DNSNAME 2 /* DNS Name */ 372 #define NI_QTYPE_NODEADDR 3 /* Node Addresses */ 373 #define NI_QTYPE_IPV4ADDR 4 /* IPv4 Addresses */ 374 375 #if BYTE_ORDER == BIG_ENDIAN 376 #define NI_SUPTYPE_FLAG_COMPRESS 0x1 377 #define NI_FQDN_FLAG_VALIDTTL 0x1 378 #elif BYTE_ORDER == LITTLE_ENDIAN 379 #define NI_SUPTYPE_FLAG_COMPRESS 0x0100 380 #define NI_FQDN_FLAG_VALIDTTL 0x0100 381 #endif 382 383 #ifdef NAME_LOOKUPS_04 384 #if BYTE_ORDER == BIG_ENDIAN 385 #define NI_NODEADDR_FLAG_LINKLOCAL 0x1 386 #define NI_NODEADDR_FLAG_SITELOCAL 0x2 387 #define NI_NODEADDR_FLAG_GLOBAL 0x4 388 #define NI_NODEADDR_FLAG_ALL 0x8 389 #define NI_NODEADDR_FLAG_TRUNCATE 0x10 390 #define NI_NODEADDR_FLAG_ANYCAST 0x20 /* just experimental. not in spec */ 391 #elif BYTE_ORDER == LITTLE_ENDIAN 392 #define NI_NODEADDR_FLAG_LINKLOCAL 0x0100 393 #define NI_NODEADDR_FLAG_SITELOCAL 0x0200 394 #define NI_NODEADDR_FLAG_GLOBAL 0x0400 395 #define NI_NODEADDR_FLAG_ALL 0x0800 396 #define NI_NODEADDR_FLAG_TRUNCATE 0x1000 397 #define NI_NODEADDR_FLAG_ANYCAST 0x2000 /* just experimental. not in spec */ 398 #endif 399 #else /* draft-ietf-ipngwg-icmp-name-lookups-05 (and later?) */ 400 #if BYTE_ORDER == BIG_ENDIAN 401 #define NI_NODEADDR_FLAG_TRUNCATE 0x1 402 #define NI_NODEADDR_FLAG_ALL 0x2 403 #define NI_NODEADDR_FLAG_COMPAT 0x4 404 #define NI_NODEADDR_FLAG_LINKLOCAL 0x8 405 #define NI_NODEADDR_FLAG_SITELOCAL 0x10 406 #define NI_NODEADDR_FLAG_GLOBAL 0x20 407 #define NI_NODEADDR_FLAG_ANYCAST 0x40 /* just experimental. not in spec */ 408 #elif BYTE_ORDER == LITTLE_ENDIAN 409 #define NI_NODEADDR_FLAG_TRUNCATE 0x0100 410 #define NI_NODEADDR_FLAG_ALL 0x0200 411 #define NI_NODEADDR_FLAG_COMPAT 0x0400 412 #define NI_NODEADDR_FLAG_LINKLOCAL 0x0800 413 #define NI_NODEADDR_FLAG_SITELOCAL 0x1000 414 #define NI_NODEADDR_FLAG_GLOBAL 0x2000 415 #define NI_NODEADDR_FLAG_ANYCAST 0x4000 /* just experimental. not in spec */ 416 #endif 417 #endif 418 419 struct ni_reply_fqdn { 420 u_int32_t ni_fqdn_ttl; /* TTL */ 421 u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */ 422 u_int8_t ni_fqdn_name[3]; /* XXX: alignment */ 423 } __packed; 424 425 /* 426 * Router Renumbering. as router-renum-08.txt 427 */ 428 struct icmp6_router_renum { /* router renumbering header */ 429 struct icmp6_hdr rr_hdr; 430 u_int8_t rr_segnum; 431 u_int8_t rr_flags; 432 u_int16_t rr_maxdelay; 433 u_int32_t rr_reserved; 434 } __packed; 435 436 #define ICMP6_RR_FLAGS_TEST 0x80 437 #define ICMP6_RR_FLAGS_REQRESULT 0x40 438 #define ICMP6_RR_FLAGS_FORCEAPPLY 0x20 439 #define ICMP6_RR_FLAGS_SPECSITE 0x10 440 #define ICMP6_RR_FLAGS_PREVDONE 0x08 441 442 #define rr_type rr_hdr.icmp6_type 443 #define rr_code rr_hdr.icmp6_code 444 #define rr_cksum rr_hdr.icmp6_cksum 445 #define rr_seqnum rr_hdr.icmp6_data32[0] 446 447 struct rr_pco_match { /* match prefix part */ 448 u_int8_t rpm_code; 449 u_int8_t rpm_len; 450 u_int8_t rpm_ordinal; 451 u_int8_t rpm_matchlen; 452 u_int8_t rpm_minlen; 453 u_int8_t rpm_maxlen; 454 u_int16_t rpm_reserved; 455 struct in6_addr rpm_prefix; 456 } __packed; 457 458 #define RPM_PCO_ADD 1 459 #define RPM_PCO_CHANGE 2 460 #define RPM_PCO_SETGLOBAL 3 461 #define RPM_PCO_MAX 4 462 463 struct rr_pco_use { /* use prefix part */ 464 u_int8_t rpu_uselen; 465 u_int8_t rpu_keeplen; 466 u_int8_t rpu_ramask; 467 u_int8_t rpu_raflags; 468 u_int32_t rpu_vltime; 469 u_int32_t rpu_pltime; 470 u_int32_t rpu_flags; 471 struct in6_addr rpu_prefix; 472 } __packed; 473 #define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK 0x80 474 #define ICMP6_RR_PCOUSE_RAFLAGS_AUTO 0x40 475 476 #if BYTE_ORDER == BIG_ENDIAN 477 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000 478 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000 479 #elif BYTE_ORDER == LITTLE_ENDIAN 480 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80 481 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40 482 #endif 483 484 struct rr_result { /* router renumbering result message */ 485 u_int16_t rrr_flags; 486 u_int8_t rrr_ordinal; 487 u_int8_t rrr_matchedlen; 488 u_int32_t rrr_ifid; 489 struct in6_addr rrr_prefix; 490 } __packed; 491 #if BYTE_ORDER == BIG_ENDIAN 492 #define ICMP6_RR_RESULT_FLAGS_OOB 0x0002 493 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001 494 #elif BYTE_ORDER == LITTLE_ENDIAN 495 #define ICMP6_RR_RESULT_FLAGS_OOB 0x0200 496 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0100 497 #endif 498 499 /* 500 * icmp6 filter structures. 501 */ 502 503 struct icmp6_filter { 504 u_int32_t icmp6_filt[8]; 505 }; 506 507 #ifdef _KERNEL 508 #define ICMP6_FILTER_SETPASSALL(filterp) \ 509 do { \ 510 int i; u_char *p; \ 511 p = (u_char *)filterp; \ 512 for (i = 0; i < sizeof(struct icmp6_filter); i++) \ 513 p[i] = 0xff; \ 514 } while (/*CONSTCOND*/ 0) 515 #define ICMP6_FILTER_SETBLOCKALL(filterp) \ 516 bzero(filterp, sizeof(struct icmp6_filter)) 517 #else /* _KERNEL */ 518 #define ICMP6_FILTER_SETPASSALL(filterp) \ 519 memset(filterp, 0xff, sizeof(struct icmp6_filter)) 520 #define ICMP6_FILTER_SETBLOCKALL(filterp) \ 521 memset(filterp, 0x00, sizeof(struct icmp6_filter)) 522 #endif /* _KERNEL */ 523 524 #define ICMP6_FILTER_SETPASS(type, filterp) \ 525 (((filterp)->icmp6_filt[(type) >> 5]) |= (1 << ((type) & 31))) 526 #define ICMP6_FILTER_SETBLOCK(type, filterp) \ 527 (((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31))) 528 #define ICMP6_FILTER_WILLPASS(type, filterp) \ 529 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0) 530 #define ICMP6_FILTER_WILLBLOCK(type, filterp) \ 531 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0) 532 533 /* 534 * Variables related to this implementation 535 * of the internet control message protocol version 6. 536 */ 537 struct icmp6errstat { 538 u_quad_t icp6errs_dst_unreach_noroute; 539 u_quad_t icp6errs_dst_unreach_admin; 540 u_quad_t icp6errs_dst_unreach_beyondscope; 541 u_quad_t icp6errs_dst_unreach_addr; 542 u_quad_t icp6errs_dst_unreach_noport; 543 u_quad_t icp6errs_packet_too_big; 544 u_quad_t icp6errs_time_exceed_transit; 545 u_quad_t icp6errs_time_exceed_reassembly; 546 u_quad_t icp6errs_paramprob_header; 547 u_quad_t icp6errs_paramprob_nextheader; 548 u_quad_t icp6errs_paramprob_option; 549 u_quad_t icp6errs_redirect; /* we regard redirect as an error here */ 550 u_quad_t icp6errs_unknown; 551 }; 552 553 struct icmp6stat { 554 /* statistics related to icmp6 packets generated */ 555 u_quad_t icp6s_error; /* # of calls to icmp6_error */ 556 u_quad_t icp6s_canterror; /* no error 'cuz old was icmp */ 557 u_quad_t icp6s_toofreq; /* no error 'cuz rate limitation */ 558 u_quad_t icp6s_outhist[256]; 559 /* statistics related to input message processed */ 560 u_quad_t icp6s_badcode; /* icmp6_code out of range */ 561 u_quad_t icp6s_tooshort; /* packet < sizeof(struct icmp6_hdr) */ 562 u_quad_t icp6s_checksum; /* bad checksum */ 563 u_quad_t icp6s_badlen; /* calculated bound mismatch */ 564 /* 565 * number of responses: this member is inherited from netinet code, but 566 * for netinet6 code, it is already available in icp6s_outhist[]. 567 */ 568 u_quad_t icp6s_reflect; 569 u_quad_t icp6s_inhist[256]; 570 u_quad_t icp6s_nd_toomanyopt; /* too many ND options */ 571 struct icmp6errstat icp6s_outerrhist; 572 #define icp6s_odst_unreach_noroute \ 573 icp6s_outerrhist.icp6errs_dst_unreach_noroute 574 #define icp6s_odst_unreach_admin icp6s_outerrhist.icp6errs_dst_unreach_admin 575 #define icp6s_odst_unreach_beyondscope \ 576 icp6s_outerrhist.icp6errs_dst_unreach_beyondscope 577 #define icp6s_odst_unreach_addr icp6s_outerrhist.icp6errs_dst_unreach_addr 578 #define icp6s_odst_unreach_noport icp6s_outerrhist.icp6errs_dst_unreach_noport 579 #define icp6s_opacket_too_big icp6s_outerrhist.icp6errs_packet_too_big 580 #define icp6s_otime_exceed_transit \ 581 icp6s_outerrhist.icp6errs_time_exceed_transit 582 #define icp6s_otime_exceed_reassembly \ 583 icp6s_outerrhist.icp6errs_time_exceed_reassembly 584 #define icp6s_oparamprob_header icp6s_outerrhist.icp6errs_paramprob_header 585 #define icp6s_oparamprob_nextheader \ 586 icp6s_outerrhist.icp6errs_paramprob_nextheader 587 #define icp6s_oparamprob_option icp6s_outerrhist.icp6errs_paramprob_option 588 #define icp6s_oredirect icp6s_outerrhist.icp6errs_redirect 589 #define icp6s_ounknown icp6s_outerrhist.icp6errs_unknown 590 u_quad_t icp6s_pmtuchg; /* path MTU changes */ 591 u_quad_t icp6s_nd_badopt; /* bad ND options */ 592 u_quad_t icp6s_badns; /* bad neighbor solicitation */ 593 u_quad_t icp6s_badna; /* bad neighbor advertisement */ 594 u_quad_t icp6s_badrs; /* bad router advertisement */ 595 u_quad_t icp6s_badra; /* bad router advertisement */ 596 u_quad_t icp6s_badredirect; /* bad redirect message */ 597 }; 598 599 /* 600 * Names for ICMP sysctl objects 601 */ 602 #define ICMPV6CTL_STATS 1 603 #define ICMPV6CTL_REDIRACCEPT 2 /* accept/process redirects */ 604 #define ICMPV6CTL_REDIRTIMEOUT 3 /* redirect cache time */ 605 #if 0 /*obsoleted*/ 606 #define ICMPV6CTL_ERRRATELIMIT 5 /* ICMPv6 error rate limitation */ 607 #endif 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_MLD_MAXSRCFILTER 21 623 #define ICMPV6CTL_MLD_SOMAXSRC 22 624 #define ICMPV6CTL_MLD_VERSION 23 625 #define ICMPV6CTL_ND6_MAXQLEN 24 626 #define ICMPV6CTL_MAXID 25 627 628 #define RTF_PROBEMTU RTF_PROTO1 629 630 #ifdef _KERNEL 631 # ifdef __STDC__ 632 struct rtentry; 633 struct rttimer; 634 struct in6_multi; 635 # endif 636 void icmp6_init(void); 637 void icmp6_paramerror(struct mbuf *, int); 638 void icmp6_error(struct mbuf *, int, int, int); 639 void icmp6_error2(struct mbuf *, int, int, int, struct ifnet *); 640 int icmp6_input(struct mbuf **, int *, int); 641 void icmp6_fasttimo(void); 642 void icmp6_reflect(struct mbuf *, size_t); 643 void icmp6_prepare(struct mbuf *); 644 void icmp6_redirect_input(struct mbuf *, int); 645 void icmp6_redirect_output(struct mbuf *, struct rtentry *); 646 647 struct ip6ctlparam; 648 void icmp6_mtudisc_update(struct ip6ctlparam *, int); 649 650 /* XXX: is this the right place for these macros? */ 651 #define icmp6_ifstat_inc(ifp, tag) \ 652 do { \ 653 if (ifp) \ 654 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->icmp6_ifstat->tag++; \ 655 } while (/*CONSTCOND*/ 0) 656 657 #define icmp6_ifoutstat_inc(ifp, type, code) \ 658 do { \ 659 icmp6_ifstat_inc(ifp, ifs6_out_msg); \ 660 if (type < ICMP6_INFOMSG_MASK) \ 661 icmp6_ifstat_inc(ifp, ifs6_out_error); \ 662 switch (type) { \ 663 case ICMP6_DST_UNREACH: \ 664 icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \ 665 if (code == ICMP6_DST_UNREACH_ADMIN) \ 666 icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \ 667 break; \ 668 case ICMP6_PACKET_TOO_BIG: \ 669 icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \ 670 break; \ 671 case ICMP6_TIME_EXCEEDED: \ 672 icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \ 673 break; \ 674 case ICMP6_PARAM_PROB: \ 675 icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \ 676 break; \ 677 case ICMP6_ECHO_REQUEST: \ 678 icmp6_ifstat_inc(ifp, ifs6_out_echo); \ 679 break; \ 680 case ICMP6_ECHO_REPLY: \ 681 icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \ 682 break; \ 683 case MLD_LISTENER_QUERY: \ 684 icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \ 685 break; \ 686 case MLD_LISTENER_REPORT: \ 687 icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \ 688 break; \ 689 case MLD_LISTENER_DONE: \ 690 icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \ 691 break; \ 692 case ND_ROUTER_SOLICIT: \ 693 icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \ 694 break; \ 695 case ND_ROUTER_ADVERT: \ 696 icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \ 697 break; \ 698 case ND_NEIGHBOR_SOLICIT: \ 699 icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \ 700 break; \ 701 case ND_NEIGHBOR_ADVERT: \ 702 icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \ 703 break; \ 704 case ND_REDIRECT: \ 705 icmp6_ifstat_inc(ifp, ifs6_out_redirect); \ 706 break; \ 707 } \ 708 } while (/*CONSTCOND*/ 0) 709 710 extern int icmp6_rediraccept; /* accept/process redirects */ 711 extern int icmp6_redirtimeout; /* cache time for redirect routes */ 712 713 #define ICMP6_NODEINFO_FQDNOK 0x1 714 #define ICMP6_NODEINFO_NODEADDROK 0x2 715 #define ICMP6_NODEINFO_TMPADDROK 0x4 716 #define ICMP6_NODEINFO_GLOBALOK 0x8 717 #endif /* _KERNEL */ 718 719 #endif /* not _NETINET_ICMP6_H_ */ 720