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