1 /* 2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the project nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 /* 33 * Copyright (c) 1982, 1986, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. All advertising materials mentioning features or use of this software 45 * must display the following acknowledgement: 46 * This product includes software developed by the University of 47 * California, Berkeley and its contributors. 48 * 4. Neither the name of the University nor the names of its contributors 49 * may be used to endorse or promote products derived from this software 50 * without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 * SUCH DAMAGE. 63 * 64 * @(#)ip_icmp.h 8.1 (Berkeley) 6/10/93 65 */ 66 67 #ifndef _NETINET6_ICMPV6_H_ 68 #define _NETINET6_ICMPV6_H_ 69 70 #if !defined(_KERNEL) && !defined(__KAME_NETINET_ICMP6_H_INCLUDED_) 71 #error "do not include netinet6/icmp6.h directly, include netinet/icmp6.h" 72 #endif 73 74 #define ICMPV6_PLD_MAXLEN 1232 /* IPV6_MMTU - sizeof(struct ip6_hdr) 75 - sizeof(struct icmp6_hdr) */ 76 77 struct icmp6_hdr { 78 u_int8_t icmp6_type; /* type field */ 79 u_int8_t icmp6_code; /* code field */ 80 u_int16_t icmp6_cksum; /* checksum field */ 81 union { 82 u_int32_t icmp6_un_data32[1]; /* type-specific field */ 83 u_int16_t icmp6_un_data16[2]; /* type-specific field */ 84 u_int8_t icmp6_un_data8[4]; /* type-specific field */ 85 } icmp6_dataun; 86 }; 87 88 #define icmp6_data32 icmp6_dataun.icmp6_un_data32 89 #define icmp6_data16 icmp6_dataun.icmp6_un_data16 90 #define icmp6_data8 icmp6_dataun.icmp6_un_data8 91 #define icmp6_pptr icmp6_data32[0] /* parameter prob */ 92 #define icmp6_mtu icmp6_data32[0] /* packet too big */ 93 #define icmp6_id icmp6_data16[0] /* echo request/reply */ 94 #define icmp6_seq icmp6_data16[1] /* echo request/reply */ 95 #define icmp6_maxdelay icmp6_data16[0] /* mcast group membership */ 96 97 #define ICMP6_DST_UNREACH 1 /* dest unreachable, codes: */ 98 #define ICMP6_PACKET_TOO_BIG 2 /* packet too big */ 99 #define ICMP6_TIME_EXCEEDED 3 /* time exceeded, code: */ 100 #define ICMP6_PARAM_PROB 4 /* ip6 header bad */ 101 102 #define ICMP6_ECHO_REQUEST 128 /* echo service */ 103 #define ICMP6_ECHO_REPLY 129 /* echo reply */ 104 #define ICMP6_MEMBERSHIP_QUERY 130 /* group membership query */ 105 #define MLD6_LISTENER_QUERY 130 /* multicast listener query */ 106 #define ICMP6_MEMBERSHIP_REPORT 131 /* group membership report */ 107 #define MLD6_LISTENER_REPORT 131 /* multicast listener report */ 108 #define ICMP6_MEMBERSHIP_REDUCTION 132 /* group membership termination */ 109 #define MLD6_LISTENER_DONE 132 /* multicast listener done */ 110 111 #define ND_ROUTER_SOLICIT 133 /* router solicitation */ 112 #define ND_ROUTER_ADVERT 134 /* router advertisment */ 113 #define ND_NEIGHBOR_SOLICIT 135 /* neighbor solicitation */ 114 #define ND_NEIGHBOR_ADVERT 136 /* neighbor advertisment */ 115 #define ND_REDIRECT 137 /* redirect */ 116 117 #define ICMP6_ROUTER_RENUMBERING 138 /* router renumbering */ 118 119 #define ICMP6_WRUREQUEST 139 /* who are you request */ 120 #define ICMP6_WRUREPLY 140 /* who are you reply */ 121 #define ICMP6_FQDN_QUERY 139 /* FQDN query */ 122 #define ICMP6_FQDN_REPLY 140 /* FQDN reply */ 123 #define ICMP6_NI_QUERY 139 /* node information request */ 124 #define ICMP6_NI_REPLY 140 /* node information reply */ 125 126 /* The definitions below are experimental. TBA */ 127 #define MLD6_MTRACE_RESP 141 /* mtrace response(to sender) */ 128 #define MLD6_MTRACE 142 /* mtrace messages */ 129 130 #define ICMP6_MAXTYPE 142 131 132 #define ICMP6_DST_UNREACH_NOROUTE 0 /* no route to destination */ 133 #define ICMP6_DST_UNREACH_ADMIN 1 /* administratively prohibited */ 134 #define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor(obsolete) */ 135 #define ICMP6_DST_UNREACH_BEYONDSCOPE 2 /* beyond scope of source address */ 136 #define ICMP6_DST_UNREACH_ADDR 3 /* address unreachable */ 137 #define ICMP6_DST_UNREACH_NOPORT 4 /* port unreachable */ 138 139 #define ICMP6_TIME_EXCEED_TRANSIT 0 /* ttl==0 in transit */ 140 #define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* ttl==0 in reass */ 141 142 #define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */ 143 #define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized next header */ 144 #define ICMP6_PARAMPROB_OPTION 2 /* unrecognized option */ 145 146 #define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */ 147 148 #define ICMP6_NI_SUCESS 0 /* node information successful reply */ 149 #define ICMP6_NI_REFUSED 1 /* node information request is refused */ 150 #define ICMP6_NI_UNKNOWN 2 /* unknown Qtype */ 151 152 #define ICMP6_ROUTER_RENUMBERING_COMMAND 0 /* rr command */ 153 #define ICMP6_ROUTER_RENUMBERING_RESULT 1 /* rr result */ 154 #define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 /* rr seq num reset */ 155 156 /* Used in kernel only */ 157 #define ND_REDIRECT_ONLINK 0 /* redirect to an on-link node */ 158 #define ND_REDIRECT_ROUTER 1 /* redirect to a better router */ 159 160 /* 161 * Multicast Listener Discovery 162 */ 163 struct mld6_hdr { 164 struct icmp6_hdr mld6_hdr; 165 struct in6_addr mld6_addr; /* multicast address */ 166 }; 167 168 #define mld6_type mld6_hdr.icmp6_type 169 #define mld6_code mld6_hdr.icmp6_code 170 #define mld6_cksum mld6_hdr.icmp6_cksum 171 #define mld6_maxdelay mld6_hdr.icmp6_data16[0] 172 #define mld6_reserved mld6_hdr.icmp6_data16[1] 173 174 /* 175 * Neighbor Discovery 176 */ 177 178 struct nd_router_solicit { /* router solicitation */ 179 struct icmp6_hdr nd_rs_hdr; 180 /* could be followed by options */ 181 }; 182 183 #define nd_rs_type nd_rs_hdr.icmp6_type 184 #define nd_rs_code nd_rs_hdr.icmp6_code 185 #define nd_rs_cksum nd_rs_hdr.icmp6_cksum 186 #define nd_rs_reserved nd_rs_hdr.icmp6_data32[0] 187 188 struct nd_router_advert { /* router advertisement */ 189 struct icmp6_hdr nd_ra_hdr; 190 u_int32_t nd_ra_reachable; /* reachable time */ 191 u_int32_t nd_ra_retransmit; /* retransmit timer */ 192 /* could be followed by options */ 193 }; 194 195 #define nd_ra_type nd_ra_hdr.icmp6_type 196 #define nd_ra_code nd_ra_hdr.icmp6_code 197 #define nd_ra_cksum nd_ra_hdr.icmp6_cksum 198 #define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0] 199 #define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1] 200 #define ND_RA_FLAG_MANAGED 0x80 201 #define ND_RA_FLAG_OTHER 0x40 202 #define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1] 203 204 struct nd_neighbor_solicit { /* neighbor solicitation */ 205 struct icmp6_hdr nd_ns_hdr; 206 struct in6_addr nd_ns_target; /*target address */ 207 /* could be followed by options */ 208 }; 209 210 #define nd_ns_type nd_ns_hdr.icmp6_type 211 #define nd_ns_code nd_ns_hdr.icmp6_code 212 #define nd_ns_cksum nd_ns_hdr.icmp6_cksum 213 #define nd_ns_reserved nd_ns_hdr.icmp6_data32[0] 214 215 struct nd_neighbor_advert { /* neighbor advertisement */ 216 struct icmp6_hdr nd_na_hdr; 217 struct in6_addr nd_na_target; /* target address */ 218 /* could be followed by options */ 219 }; 220 221 #define nd_na_type nd_na_hdr.icmp6_type 222 #define nd_na_code nd_na_hdr.icmp6_code 223 #define nd_na_cksum nd_na_hdr.icmp6_cksum 224 #define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0] 225 #if BYTE_ORDER == BIG_ENDIAN 226 #define ND_NA_FLAG_ROUTER 0x80000000 227 #define ND_NA_FLAG_SOLICITED 0x40000000 228 #define ND_NA_FLAG_OVERRIDE 0x20000000 229 #elif BYTE_ORDER == LITTLE_ENDIAN 230 #define ND_NA_FLAG_ROUTER 0x80 231 #define ND_NA_FLAG_SOLICITED 0x40 232 #define ND_NA_FLAG_OVERRIDE 0x20 233 #endif 234 235 struct nd_redirect { /* redirect */ 236 struct icmp6_hdr nd_rd_hdr; 237 struct in6_addr nd_rd_target; /* target address */ 238 struct in6_addr nd_rd_dst; /* destination address */ 239 /* could be followed by options */ 240 }; 241 242 #define nd_rd_type nd_rd_hdr.icmp6_type 243 #define nd_rd_code nd_rd_hdr.icmp6_code 244 #define nd_rd_cksum nd_rd_hdr.icmp6_cksum 245 #define nd_rd_reserved nd_rd_hdr.icmp6_data32[0] 246 247 struct nd_opt_hdr { /* Neighbor discovery option header */ 248 u_int8_t nd_opt_type; 249 u_int8_t nd_opt_len; 250 /* followed by option specific data*/ 251 }; 252 253 #define ND_OPT_SOURCE_LINKADDR 1 254 #define ND_OPT_TARGET_LINKADDR 2 255 #define ND_OPT_PREFIX_INFORMATION 3 256 #define ND_OPT_REDIRECTED_HEADER 4 257 #define ND_OPT_MTU 5 258 259 struct nd_opt_prefix_info { /* prefix information */ 260 u_int8_t nd_opt_pi_type; 261 u_int8_t nd_opt_pi_len; 262 u_int8_t nd_opt_pi_prefix_len; 263 u_int8_t nd_opt_pi_flags_reserved; 264 u_int32_t nd_opt_pi_valid_time; 265 u_int32_t nd_opt_pi_preferred_time; 266 u_int32_t nd_opt_pi_reserved2; 267 struct in6_addr nd_opt_pi_prefix; 268 }; 269 270 #define ND_OPT_PI_FLAG_ONLINK 0x80 271 #define ND_OPT_PI_FLAG_AUTO 0x40 272 273 struct nd_opt_rd_hdr { /* redirected header */ 274 u_int8_t nd_opt_rh_type; 275 u_int8_t nd_opt_rh_len; 276 u_int16_t nd_opt_rh_reserved1; 277 u_int32_t nd_opt_rh_reserved2; 278 /* followed by IP header and data */ 279 }; 280 281 struct nd_opt_mtu { /* MTU option */ 282 u_int8_t nd_opt_mtu_type; 283 u_int8_t nd_opt_mtu_len; 284 u_int16_t nd_opt_mtu_reserved; 285 u_int32_t nd_opt_mtu_mtu; 286 }; 287 288 /* 289 * icmp6 namelookup 290 */ 291 292 struct icmp6_namelookup { 293 struct icmp6_hdr icmp6_nl_hdr; 294 u_int64_t icmp6_nl_nonce; 295 u_int32_t icmp6_nl_ttl; 296 /* could be followed by options */ 297 }; 298 299 /* 300 * icmp6 node information 301 */ 302 struct icmp6_nodeinfo { 303 struct icmp6_hdr icmp6_ni_hdr; 304 u_int64_t icmp6_ni_nonce; 305 /* could be followed by reply data */ 306 }; 307 308 #define ni_type icmp6_ni_hdr.icmp6_type 309 #define ni_code icmp6_ni_hdr.icmp6_code 310 #define ni_cksum icmp6_ni_hdr.icmp6_cksum 311 #define ni_qtype icmp6_ni_hdr.icmp6_data16[0] 312 #define ni_flags icmp6_ni_hdr.icmp6_data16[1] 313 314 315 #define NI_QTYPE_NOOP 0 /* NOOP */ 316 #define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes */ 317 #define NI_QTYPE_FQDN 2 /* FQDN */ 318 #define NI_QTYPE_NODEADDR 3 /* Node Addresses. XXX: spec says 2, but it may be a typo... */ 319 320 #if BYTE_ORDER == BIG_ENDIAN 321 #define NI_SUPTYPE_FLAG_COMPRESS 0x1 322 #define NI_FQDN_FLAG_VALIDTTL 0x1 323 #elif BYTE_ORDER == LITTLE_ENDIAN 324 #define NI_SUPTYPE_FLAG_COMPRESS 0x0100 325 #define NI_FQDN_FLAG_VALIDTTL 0x0100 326 #endif 327 328 #if BYTE_ORDER == BIG_ENDIAN 329 #define NI_NODEADDR_FLAG_TRUNCATE 0x1 330 #define NI_NODEADDR_FLAG_ALL 0x2 331 #define NI_NODEADDR_FLAG_COMPAT 0x4 332 #define NI_NODEADDR_FLAG_LINKLOCAL 0x8 333 #define NI_NODEADDR_FLAG_SITELOCAL 0x10 334 #define NI_NODEADDR_FLAG_GLOBAL 0x20 335 #define NI_NODEADDR_FLAG_ANYCAST 0x40 /* just experimental. not in spec */ 336 #elif BYTE_ORDER == LITTLE_ENDIAN 337 #define NI_NODEADDR_FLAG_TRUNCATE 0x0100 338 #define NI_NODEADDR_FLAG_ALL 0x0200 339 #define NI_NODEADDR_FLAG_COMPAT 0x0400 340 #define NI_NODEADDR_FLAG_LINKLOCAL 0x0800 341 #define NI_NODEADDR_FLAG_SITELOCAL 0x1000 342 #define NI_NODEADDR_FLAG_GLOBAL 0x2000 343 #define NI_NODEADDR_FLAG_ANYCAST 0x4000 /* just experimental. not in spec */ 344 #endif 345 346 struct ni_reply_fqdn { 347 u_int32_t ni_fqdn_ttl; /* TTL */ 348 u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */ 349 u_int8_t ni_fqdn_name[3]; /* XXX: alignment */ 350 }; 351 352 /* 353 * Router Renumbering. as router-renum-08.txt 354 */ 355 struct icmp6_router_renum { /* router renumbering header */ 356 struct icmp6_hdr rr_hdr; 357 u_int8_t rr_segnum; 358 u_int8_t rr_flags; 359 u_int16_t rr_maxdelay; 360 u_int32_t rr_reserved; 361 }; 362 #define ICMP6_RR_FLAGS_SEGNUM 0x80 363 #define ICMP6_RR_FLAGS_TEST 0x40 364 #define ICMP6_RR_FLAGS_REQRESULT 0x20 365 #define ICMP6_RR_FLAGS_FORCEAPPLY 0x10 366 #define ICMP6_RR_FLAGS_SPECSITE 0x08 367 #define ICMP6_RR_FLAGS_PREVDONE 0x04 368 369 #define rr_type rr_hdr.icmp6_type 370 #define rr_code rr_hdr.icmp6_code 371 #define rr_cksum rr_hdr.icmp6_cksum 372 #define rr_seqnum rr_hdr.icmp6_data32[0] 373 374 struct rr_pco_match { /* match prefix part */ 375 u_int8_t rpm_code; 376 u_int8_t rpm_len; 377 u_int8_t rpm_ordinal; 378 u_int8_t rpm_matchlen; 379 u_int8_t rpm_minlen; 380 u_int8_t rpm_maxlen; 381 u_int16_t rpm_reserved; 382 struct in6_addr rpm_prefix; 383 }; 384 385 #define RPM_PCO_ADD 1 386 #define RPM_PCO_CHANGE 2 387 #define RPM_PCO_SETGLOBAL 3 388 389 struct rr_pco_use { /* use prefix part */ 390 u_int8_t rpu_uselen; 391 u_int8_t rpu_keeplen; 392 u_int8_t rpu_ramask; 393 u_int8_t rpu_raflags; 394 u_int32_t rpu_vltime; 395 u_int32_t rpu_pltime; 396 u_int32_t rpu_flags; 397 struct in6_addr rpu_prefix; 398 }; 399 #define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK 0x80 400 #define ICMP6_RR_PCOUSE_RAFLAGS_AUTO 0x40 401 402 #if BYTE_ORDER == BIG_ENDIAN 403 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000 404 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000 405 #elif BYTE_ORDER == LITTLE_ENDIAN 406 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80 407 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40 408 #endif 409 410 struct rr_result { /* router renumbering result message */ 411 u_int16_t rrr_flags; 412 u_int8_t rrr_ordinal; 413 u_int8_t rrr_matchedlen; 414 u_int32_t rrr_ifid; 415 struct in6_addr rrr_prefix; 416 }; 417 #if BYTE_ORDER == BIG_ENDIAN 418 #define ICMP6_RR_RESULT_FLAGS_OOB 0x0002 419 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001 420 #elif BYTE_ORDER == LITTLE_ENDIAN 421 #define ICMP6_RR_RESULT_FLAGS_OOB 0x02 422 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x01 423 #endif 424 425 /* 426 * icmp6 filter structures. 427 */ 428 429 struct icmp6_filter { 430 u_int32_t icmp6_filter[8]; 431 }; 432 433 #ifdef _KERNEL 434 #define ICMP6_FILTER_SETPASSALL(filterp) \ 435 { \ 436 int i; u_char *p; \ 437 p = (u_char *)filterp; \ 438 for (i = 0; i < sizeof(struct icmp6_filter); i++) \ 439 p[i] = 0xff; \ 440 } 441 #define ICMP6_FILTER_SETBLOCKALL(filterp) \ 442 bzero(filterp, sizeof(struct icmp6_filter)) 443 #else /* _KERNEL */ 444 #define ICMP6_FILTER_SETPASSALL(filterp) \ 445 memset(filterp, 0xff, sizeof(struct icmp6_filter)) 446 #define ICMP6_FILTER_SETBLOCKALL(filterp) \ 447 memset(filterp, 0x00, sizeof(struct icmp6_filter)) 448 #endif /* _KERNEL */ 449 450 #define ICMP6_FILTER_SETPASS(type, filterp) \ 451 (((filterp)->icmp6_filter[(type) >> 5]) |= (1 << ((type) & 31))) 452 #define ICMP6_FILTER_SETBLOCK(type, filterp) \ 453 (((filterp)->icmp6_filter[(type) >> 5]) &= ~(1 << ((type) & 31))) 454 #define ICMP6_FILTER_WILLPASS(type, filterp) \ 455 ((((filterp)->icmp6_filter[(type) >> 5]) & (1 << ((type) & 31))) != 0) 456 #define ICMP6_FILTER_WILLBLOCK(type, filterp) \ 457 ((((filterp)->icmp6_filter[(type) >> 5]) & (1 << ((type) & 31))) == 0) 458 459 /* 460 * Variables related to this implementation 461 * of the internet control message protocol version 6. 462 */ 463 struct icmp6stat { 464 /* statistics related to icmp6 packets generated */ 465 u_long icp6s_error; /* # of calls to icmp6_error */ 466 u_long icp6s_canterror; /* no error 'cuz old was icmp */ 467 u_long icp6s_toofreq; /* no error 'cuz rate limitation */ 468 u_long icp6s_outhist[256]; 469 /* statistics related to input messages proccesed */ 470 u_long icp6s_badcode; /* icmp6_code out of range */ 471 u_long icp6s_tooshort; /* packet < sizeof(struct icmp6_hdr) */ 472 u_long icp6s_checksum; /* bad checksum */ 473 u_long icp6s_badlen; /* calculated bound mismatch */ 474 u_long icp6s_reflect; /* number of responses */ 475 u_long icp6s_inhist[256]; 476 }; 477 478 /* 479 * Names for ICMP sysctl objects 480 */ 481 #define ICMPV6CTL_STATS 1 482 #define ICMPV6CTL_REDIRACCEPT 2 /* accept/process redirects */ 483 #define ICMPV6CTL_REDIRTIMEOUT 3 /* redirect cache time */ 484 #define ICMPV6CTL_ERRRATELIMIT 5 /* ICMPv6 error rate limitation */ 485 #define ICMPV6CTL_ND6_PRUNE 6 486 #define ICMPV6CTL_ND6_DELAY 8 487 #define ICMPV6CTL_ND6_UMAXTRIES 9 488 #define ICMPV6CTL_ND6_MMAXTRIES 10 489 #define ICMPV6CTL_ND6_USELOOPBACK 11 490 #define ICMPV6CTL_ND6_PROXYALL 12 491 #define ICMPV6CTL_MAXID 13 492 493 #define ICMPV6CTL_NAMES { \ 494 { 0, 0 }, \ 495 { 0, 0 }, \ 496 { "rediraccept", CTLTYPE_INT }, \ 497 { "redirtimeout", CTLTYPE_INT }, \ 498 { 0, 0 }, \ 499 { "errratelimit", CTLTYPE_INT }, \ 500 { "nd6_prune", CTLTYPE_INT }, \ 501 { 0, 0 }, \ 502 { "nd6_delay", CTLTYPE_INT }, \ 503 { "nd6_umaxtries", CTLTYPE_INT }, \ 504 { "nd6_mmaxtries", CTLTYPE_INT }, \ 505 { "nd6_useloopback", CTLTYPE_INT }, \ 506 { "nd6_proxyall", CTLTYPE_INT }, \ 507 } 508 509 #define ICMPV6CTL_VARS { \ 510 0, \ 511 0, \ 512 &icmp6_rediraccept, \ 513 &icmp6_redirtimeout, \ 514 0, \ 515 0, \ 516 &icmp6errratelim, \ 517 &nd6_prune, \ 518 0, \ 519 &nd6_delay, \ 520 &nd6_umaxtries, \ 521 &nd6_mmaxtries, \ 522 &nd6_useloopback, \ 523 &nd6_proxyall, \ 524 } 525 526 #define RTF_PROBEMTU RTF_PROTO1 527 528 #ifdef _KERNEL 529 #ifdef SYSCTL_DECL 530 SYSCTL_DECL(_net_inet6_icmp6); 531 #endif 532 # ifdef __STDC__ 533 struct rtentry; 534 struct rttimer; 535 struct in6_multi; 536 # endif 537 void icmp6_init __P((void)); 538 void icmp6_paramerror __P((struct mbuf *, int)); 539 void icmp6_error __P((struct mbuf *, int, int, int)); 540 int icmp6_input __P((struct mbuf **, int *, int)); 541 void icmp6_fasttimo __P((void)); 542 void icmp6_reflect __P((struct mbuf *, size_t)); 543 void icmp6_prepare __P((struct mbuf *)); 544 void icmp6_redirect_input __P((struct mbuf *, int)); 545 void icmp6_redirect_output __P((struct mbuf *, struct rtentry *)); 546 547 /* XXX: is this the right place for these macros? */ 548 #define icmp6_ifstat_inc(ifp, tag) \ 549 do { \ 550 if ((ifp) && (ifp)->if_index <= if_index \ 551 && (ifp)->if_index < icmp6_ifstatmax \ 552 && icmp6_ifstat && icmp6_ifstat[(ifp)->if_index]) { \ 553 icmp6_ifstat[(ifp)->if_index]->tag++; \ 554 } \ 555 } while (0) 556 557 #define icmp6_ifoutstat_inc(ifp, type, code) \ 558 do { \ 559 icmp6_ifstat_inc(ifp, ifs6_out_msg); \ 560 if (type < ICMP6_INFOMSG_MASK) \ 561 icmp6_ifstat_inc(ifp, ifs6_out_error); \ 562 switch(type) { \ 563 case ICMP6_DST_UNREACH: \ 564 icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \ 565 if (code == ICMP6_DST_UNREACH_ADMIN) \ 566 icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \ 567 break; \ 568 case ICMP6_PACKET_TOO_BIG: \ 569 icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \ 570 break; \ 571 case ICMP6_TIME_EXCEEDED: \ 572 icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \ 573 break; \ 574 case ICMP6_PARAM_PROB: \ 575 icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \ 576 break; \ 577 case ICMP6_ECHO_REQUEST: \ 578 icmp6_ifstat_inc(ifp, ifs6_out_echo); \ 579 break; \ 580 case ICMP6_ECHO_REPLY: \ 581 icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \ 582 break; \ 583 case MLD6_LISTENER_QUERY: \ 584 icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \ 585 break; \ 586 case MLD6_LISTENER_REPORT: \ 587 icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \ 588 break; \ 589 case MLD6_LISTENER_DONE: \ 590 icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \ 591 break; \ 592 case ND_ROUTER_SOLICIT: \ 593 icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \ 594 break; \ 595 case ND_ROUTER_ADVERT: \ 596 icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \ 597 break; \ 598 case ND_NEIGHBOR_SOLICIT: \ 599 icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \ 600 break; \ 601 case ND_NEIGHBOR_ADVERT: \ 602 icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \ 603 break; \ 604 case ND_REDIRECT: \ 605 icmp6_ifstat_inc(ifp, ifs6_out_redirect); \ 606 break; \ 607 } \ 608 } while (0) 609 610 extern int icmp6_rediraccept; /* accept/process redirects */ 611 extern int icmp6_redirtimeout; /* cache time for redirect routes */ 612 #endif /* _KERNEL */ 613 614 #endif /* not _NETINET6_ICMPV6_H_ */ 615 616