2 /* $KAME: icmp6.h,v 1.46 2001/04/27 15:09:48 itojun Exp $ */
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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61 * @(#)ip_icmp.h 8.1 (Berkeley) 6/10/93
64 #ifndef _NETINET_ICMP6_H_
65 #define _NETINET_ICMP6_H_
67 #define ICMPV6_PLD_MAXLEN 1232 /* IPV6_MMTU - sizeof(struct ip6_hdr)
68 - sizeof(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 */
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 */
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 */
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 */
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 */
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 */
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
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 */
120 #define ICMP6_ROUTER_RENUMBERING 138 /* router renumbering */
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 #define MLDV2_LISTENER_REPORT 143 /* RFC3810 listener report */
130 /* The definitions below are experimental. TBA */
131 #define MLD_MTRACE_RESP 200 /* mtrace resp (to sender) */
132 #define MLD_MTRACE 201 /* mtrace messages */
135 #define MLD6_MTRACE_RESP MLD_MTRACE_RESP
136 #define MLD6_MTRACE MLD_MTRACE
139 #define ICMP6_MAXTYPE 201
141 #define ICMP6_DST_UNREACH_NOROUTE 0 /* no route to destination */
142 #define ICMP6_DST_UNREACH_ADMIN 1 /* administratively prohibited */
143 #define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor(obsolete) */
144 #define ICMP6_DST_UNREACH_BEYONDSCOPE 2 /* beyond scope of source address */
145 #define ICMP6_DST_UNREACH_ADDR 3 /* address unreachable */
146 #define ICMP6_DST_UNREACH_NOPORT 4 /* port unreachable */
148 #define ICMP6_TIME_EXCEED_TRANSIT 0 /* ttl==0 in transit */
149 #define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* ttl==0 in reass */
151 #define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */
152 #define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized next header */
153 #define ICMP6_PARAMPROB_OPTION 2 /* unrecognized option */
155 #define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */
157 #define ICMP6_NI_SUBJ_IPV6 0 /* Query Subject is an IPv6 address */
158 #define ICMP6_NI_SUBJ_FQDN 1 /* Query Subject is a Domain name */
159 #define ICMP6_NI_SUBJ_IPV4 2 /* Query Subject is an IPv4 address */
161 #define ICMP6_NI_SUCCESS 0 /* node information successful reply */
162 #define ICMP6_NI_REFUSED 1 /* node information request is refused */
163 #define ICMP6_NI_UNKNOWN 2 /* unknown Qtype */
165 #define ICMP6_ROUTER_RENUMBERING_COMMAND 0 /* rr command */
166 #define ICMP6_ROUTER_RENUMBERING_RESULT 1 /* rr result */
167 #define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 /* rr seq num reset */
169 /* Used in kernel only */
170 #define ND_REDIRECT_ONLINK 0 /* redirect to an on-link node */
171 #define ND_REDIRECT_ROUTER 1 /* redirect to a better router */
174 * Multicast Listener Discovery
177 struct icmp6_hdr mld_icmp6_hdr;
178 struct in6_addr mld_addr; /* multicast address */
181 /* definitions to provide backward compatibility to old KAME applications */
183 #define mld6_hdr mld_hdr
184 #define mld6_type mld_type
185 #define mld6_code mld_code
186 #define mld6_cksum mld_cksum
187 #define mld6_maxdelay mld_maxdelay
188 #define mld6_reserved mld_reserved
189 #define mld6_addr mld_addr
192 /* shortcut macro definitions */
193 #define mld_type mld_icmp6_hdr.icmp6_type
194 #define mld_code mld_icmp6_hdr.icmp6_code
195 #define mld_cksum mld_icmp6_hdr.icmp6_cksum
196 #define mld_maxdelay mld_icmp6_hdr.icmp6_data16[0]
197 #define mld_reserved mld_icmp6_hdr.icmp6_data16[1]
198 #define mld_v2_reserved mld_icmp6_hdr.icmp6_data16[0]
199 #define mld_v2_numrecs mld_icmp6_hdr.icmp6_data16[1]
205 struct nd_router_solicit { /* router solicitation */
206 struct icmp6_hdr nd_rs_hdr;
207 /* could be followed by options */
210 #define nd_rs_type nd_rs_hdr.icmp6_type
211 #define nd_rs_code nd_rs_hdr.icmp6_code
212 #define nd_rs_cksum nd_rs_hdr.icmp6_cksum
213 #define nd_rs_reserved nd_rs_hdr.icmp6_data32[0]
215 struct nd_router_advert { /* router advertisement */
216 struct icmp6_hdr nd_ra_hdr;
217 u_int32_t nd_ra_reachable; /* reachable time */
218 u_int32_t nd_ra_retransmit; /* retransmit timer */
219 /* could be followed by options */
222 #define nd_ra_type nd_ra_hdr.icmp6_type
223 #define nd_ra_code nd_ra_hdr.icmp6_code
224 #define nd_ra_cksum nd_ra_hdr.icmp6_cksum
225 #define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0]
226 #define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1]
227 #define ND_RA_FLAG_MANAGED 0x80
228 #define ND_RA_FLAG_OTHER 0x40
229 #define ND_RA_FLAG_HA 0x20
232 * Router preference values based on draft-draves-ipngwg-router-selection-01.
233 * These are non-standard definitions.
235 #define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */
237 #define ND_RA_FLAG_RTPREF_HIGH 0x08 /* 00001000 */
238 #define ND_RA_FLAG_RTPREF_MEDIUM 0x00 /* 00000000 */
239 #define ND_RA_FLAG_RTPREF_LOW 0x18 /* 00011000 */
240 #define ND_RA_FLAG_RTPREF_RSV 0x10 /* 00010000 */
242 #define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1]
244 struct nd_neighbor_solicit { /* neighbor solicitation */
245 struct icmp6_hdr nd_ns_hdr;
246 struct in6_addr nd_ns_target; /*target address */
247 /* could be followed by options */
250 #define nd_ns_type nd_ns_hdr.icmp6_type
251 #define nd_ns_code nd_ns_hdr.icmp6_code
252 #define nd_ns_cksum nd_ns_hdr.icmp6_cksum
253 #define nd_ns_reserved nd_ns_hdr.icmp6_data32[0]
255 struct nd_neighbor_advert { /* neighbor advertisement */
256 struct icmp6_hdr nd_na_hdr;
257 struct in6_addr nd_na_target; /* target address */
258 /* could be followed by options */
261 #define nd_na_type nd_na_hdr.icmp6_type
262 #define nd_na_code nd_na_hdr.icmp6_code
263 #define nd_na_cksum nd_na_hdr.icmp6_cksum
264 #define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0]
265 #if BYTE_ORDER == BIG_ENDIAN
266 #define ND_NA_FLAG_ROUTER 0x80000000
267 #define ND_NA_FLAG_SOLICITED 0x40000000
268 #define ND_NA_FLAG_OVERRIDE 0x20000000
270 #if BYTE_ORDER == LITTLE_ENDIAN
271 #define ND_NA_FLAG_ROUTER 0x80
272 #define ND_NA_FLAG_SOLICITED 0x40
273 #define ND_NA_FLAG_OVERRIDE 0x20
277 struct nd_redirect { /* redirect */
278 struct icmp6_hdr nd_rd_hdr;
279 struct in6_addr nd_rd_target; /* target address */
280 struct in6_addr nd_rd_dst; /* destination address */
281 /* could be followed by options */
284 #define nd_rd_type nd_rd_hdr.icmp6_type
285 #define nd_rd_code nd_rd_hdr.icmp6_code
286 #define nd_rd_cksum nd_rd_hdr.icmp6_cksum
287 #define nd_rd_reserved nd_rd_hdr.icmp6_data32[0]
289 struct nd_opt_hdr { /* Neighbor discovery option header */
290 u_int8_t nd_opt_type;
292 /* followed by option specific data*/
295 #define ND_OPT_SOURCE_LINKADDR 1
296 #define ND_OPT_TARGET_LINKADDR 2
297 #define ND_OPT_PREFIX_INFORMATION 3
298 #define ND_OPT_REDIRECTED_HEADER 4
301 #define ND_OPT_ROUTE_INFO 200 /* draft-ietf-ipngwg-router-preference, not officially assigned yet */
303 struct nd_opt_prefix_info { /* prefix information */
304 u_int8_t nd_opt_pi_type;
305 u_int8_t nd_opt_pi_len;
306 u_int8_t nd_opt_pi_prefix_len;
307 u_int8_t nd_opt_pi_flags_reserved;
308 u_int32_t nd_opt_pi_valid_time;
309 u_int32_t nd_opt_pi_preferred_time;
310 u_int32_t nd_opt_pi_reserved2;
311 struct in6_addr nd_opt_pi_prefix;
314 #define ND_OPT_PI_FLAG_ONLINK 0x80
315 #define ND_OPT_PI_FLAG_AUTO 0x40
317 struct nd_opt_rd_hdr { /* redirected header */
318 u_int8_t nd_opt_rh_type;
319 u_int8_t nd_opt_rh_len;
320 u_int16_t nd_opt_rh_reserved1;
321 u_int32_t nd_opt_rh_reserved2;
322 /* followed by IP header and data */
325 struct nd_opt_mtu { /* MTU option */
326 u_int8_t nd_opt_mtu_type;
327 u_int8_t nd_opt_mtu_len;
328 u_int16_t nd_opt_mtu_reserved;
329 u_int32_t nd_opt_mtu_mtu;
332 struct nd_opt_route_info { /* route info */
333 u_int8_t nd_opt_rti_type;
334 u_int8_t nd_opt_rti_len;
335 u_int8_t nd_opt_rti_prefixlen;
336 u_int8_t nd_opt_rti_flags;
337 u_int32_t nd_opt_rti_lifetime;
345 struct icmp6_namelookup {
346 struct icmp6_hdr icmp6_nl_hdr;
347 u_int8_t icmp6_nl_nonce[8];
348 int32_t icmp6_nl_ttl;
350 u_int8_t icmp6_nl_len;
351 u_int8_t icmp6_nl_name[3];
353 /* could be followed by options */
357 * icmp6 node information
359 struct icmp6_nodeinfo {
360 struct icmp6_hdr icmp6_ni_hdr;
361 u_int8_t icmp6_ni_nonce[8];
362 /* could be followed by reply data */
365 #define ni_type icmp6_ni_hdr.icmp6_type
366 #define ni_code icmp6_ni_hdr.icmp6_code
367 #define ni_cksum icmp6_ni_hdr.icmp6_cksum
368 #define ni_qtype icmp6_ni_hdr.icmp6_data16[0]
369 #define ni_flags icmp6_ni_hdr.icmp6_data16[1]
371 #define NI_QTYPE_NOOP 0 /* NOOP */
372 #define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes */
373 #define NI_QTYPE_FQDN 2 /* FQDN (draft 04) */
374 #define NI_QTYPE_DNSNAME 2 /* DNS Name */
375 #define NI_QTYPE_NODEADDR 3 /* Node Addresses */
376 #define NI_QTYPE_IPV4ADDR 4 /* IPv4 Addresses */
378 #if BYTE_ORDER == BIG_ENDIAN
379 #define NI_SUPTYPE_FLAG_COMPRESS 0x1
380 #define NI_FQDN_FLAG_VALIDTTL 0x1
381 #elif BYTE_ORDER == LITTLE_ENDIAN
382 #define NI_SUPTYPE_FLAG_COMPRESS 0x0100
383 #define NI_FQDN_FLAG_VALIDTTL 0x0100
386 #ifdef NAME_LOOKUPS_04
387 #if BYTE_ORDER == BIG_ENDIAN
388 #define NI_NODEADDR_FLAG_LINKLOCAL 0x1
389 #define NI_NODEADDR_FLAG_SITELOCAL 0x2
390 #define NI_NODEADDR_FLAG_GLOBAL 0x4
391 #define NI_NODEADDR_FLAG_ALL 0x8
392 #define NI_NODEADDR_FLAG_TRUNCATE 0x10
393 #define NI_NODEADDR_FLAG_ANYCAST 0x20 /* just experimental. not in spec */
394 #elif BYTE_ORDER == LITTLE_ENDIAN
395 #define NI_NODEADDR_FLAG_LINKLOCAL 0x0100
396 #define NI_NODEADDR_FLAG_SITELOCAL 0x0200
397 #define NI_NODEADDR_FLAG_GLOBAL 0x0400
398 #define NI_NODEADDR_FLAG_ALL 0x0800
399 #define NI_NODEADDR_FLAG_TRUNCATE 0x1000
400 #define NI_NODEADDR_FLAG_ANYCAST 0x2000 /* just experimental. not in spec */
402 #else /* draft-ietf-ipngwg-icmp-name-lookups-05 (and later?) */
403 #if BYTE_ORDER == BIG_ENDIAN
404 #define NI_NODEADDR_FLAG_TRUNCATE 0x1
405 #define NI_NODEADDR_FLAG_ALL 0x2
406 #define NI_NODEADDR_FLAG_COMPAT 0x4
407 #define NI_NODEADDR_FLAG_LINKLOCAL 0x8
408 #define NI_NODEADDR_FLAG_SITELOCAL 0x10
409 #define NI_NODEADDR_FLAG_GLOBAL 0x20
410 #define NI_NODEADDR_FLAG_ANYCAST 0x40 /* just experimental. not in spec */
411 #elif BYTE_ORDER == LITTLE_ENDIAN
412 #define NI_NODEADDR_FLAG_TRUNCATE 0x0100
413 #define NI_NODEADDR_FLAG_ALL 0x0200
414 #define NI_NODEADDR_FLAG_COMPAT 0x0400
415 #define NI_NODEADDR_FLAG_LINKLOCAL 0x0800
416 #define NI_NODEADDR_FLAG_SITELOCAL 0x1000
417 #define NI_NODEADDR_FLAG_GLOBAL 0x2000
418 #define NI_NODEADDR_FLAG_ANYCAST 0x4000 /* just experimental. not in spec */
422 struct ni_reply_fqdn {
423 u_int32_t ni_fqdn_ttl; /* TTL */
424 u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */
425 u_int8_t ni_fqdn_name[3]; /* XXX: alignment */
429 * Router Renumbering. as router-renum-08.txt
431 struct icmp6_router_renum { /* router renumbering header */
432 struct icmp6_hdr rr_hdr;
435 u_int16_t rr_maxdelay;
436 u_int32_t rr_reserved;
439 #define ICMP6_RR_FLAGS_TEST 0x80
440 #define ICMP6_RR_FLAGS_REQRESULT 0x40
441 #define ICMP6_RR_FLAGS_FORCEAPPLY 0x20
442 #define ICMP6_RR_FLAGS_SPECSITE 0x10
443 #define ICMP6_RR_FLAGS_PREVDONE 0x08
445 #define rr_type rr_hdr.icmp6_type
446 #define rr_code rr_hdr.icmp6_code
447 #define rr_cksum rr_hdr.icmp6_cksum
448 #define rr_seqnum rr_hdr.icmp6_data32[0]
450 struct rr_pco_match { /* match prefix part */
453 u_int8_t rpm_ordinal;
454 u_int8_t rpm_matchlen;
457 u_int16_t rpm_reserved;
458 struct in6_addr rpm_prefix;
461 #define RPM_PCO_ADD 1
462 #define RPM_PCO_CHANGE 2
463 #define RPM_PCO_SETGLOBAL 3
464 #define RPM_PCO_MAX 4
466 struct rr_pco_use { /* use prefix part */
468 u_int8_t rpu_keeplen;
470 u_int8_t rpu_raflags;
471 u_int32_t rpu_vltime;
472 u_int32_t rpu_pltime;
474 struct in6_addr rpu_prefix;
476 #define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK 0x80
477 #define ICMP6_RR_PCOUSE_RAFLAGS_AUTO 0x40
479 #if BYTE_ORDER == BIG_ENDIAN
480 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000
481 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000
482 #elif BYTE_ORDER == LITTLE_ENDIAN
483 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80
484 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40
487 struct rr_result { /* router renumbering result message */
489 u_int8_t rrr_ordinal;
490 u_int8_t rrr_matchedlen;
492 struct in6_addr rrr_prefix;
494 #if BYTE_ORDER == BIG_ENDIAN
495 #define ICMP6_RR_RESULT_FLAGS_OOB 0x0002
496 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001
497 #elif BYTE_ORDER == LITTLE_ENDIAN
498 #define ICMP6_RR_RESULT_FLAGS_OOB 0x0200
499 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0100
503 * icmp6 filter structures.
506 struct icmp6_filter {
507 u_int32_t icmp6_filt[8];
511 #define ICMP6_FILTER_SETPASSALL(filterp) \
514 p = (u_char *)filterp; \
515 for (i = 0; i < sizeof(struct icmp6_filter); i++) \
517 } while (/*CONSTCOND*/ 0)
518 #define ICMP6_FILTER_SETBLOCKALL(filterp) \
519 bzero(filterp, sizeof(struct icmp6_filter))
521 #define ICMP6_FILTER_SETPASSALL(filterp) \
522 memset(filterp, 0xff, sizeof(struct icmp6_filter))
523 #define ICMP6_FILTER_SETBLOCKALL(filterp) \
524 memset(filterp, 0x00, sizeof(struct icmp6_filter))
527 #define ICMP6_FILTER_SETPASS(type, filterp) \
528 (((filterp)->icmp6_filt[(type) >> 5]) |= (1 << ((type) & 31)))
529 #define ICMP6_FILTER_SETBLOCK(type, filterp) \
530 (((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31)))
531 #define ICMP6_FILTER_WILLPASS(type, filterp) \
532 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0)
533 #define ICMP6_FILTER_WILLBLOCK(type, filterp) \
534 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0)
537 * Variables related to this implementation
538 * of the internet control message protocol version 6.
540 struct icmp6errstat {
541 u_quad_t icp6errs_dst_unreach_noroute;
542 u_quad_t icp6errs_dst_unreach_admin;
543 u_quad_t icp6errs_dst_unreach_beyondscope;
544 u_quad_t icp6errs_dst_unreach_addr;
545 u_quad_t icp6errs_dst_unreach_noport;
546 u_quad_t icp6errs_packet_too_big;
547 u_quad_t icp6errs_time_exceed_transit;
548 u_quad_t icp6errs_time_exceed_reassembly;
549 u_quad_t icp6errs_paramprob_header;
550 u_quad_t icp6errs_paramprob_nextheader;
551 u_quad_t icp6errs_paramprob_option;
552 u_quad_t icp6errs_redirect; /* we regard redirect as an error here */
553 u_quad_t icp6errs_unknown;
557 /* statistics related to icmp6 packets generated */
558 u_quad_t icp6s_error; /* # of calls to icmp6_error */
559 u_quad_t icp6s_canterror; /* no error 'cuz old was icmp */
560 u_quad_t icp6s_toofreq; /* no error 'cuz rate limitation */
561 u_quad_t icp6s_outhist[256];
562 /* statistics related to input message processed */
563 u_quad_t icp6s_badcode; /* icmp6_code out of range */
564 u_quad_t icp6s_tooshort; /* packet < sizeof(struct icmp6_hdr) */
565 u_quad_t icp6s_checksum; /* bad checksum */
566 u_quad_t icp6s_badlen; /* calculated bound mismatch */
568 * number of responses: this member is inherited from netinet code, but
569 * for netinet6 code, it is already available in icp6s_outhist[].
571 u_quad_t icp6s_reflect;
572 u_quad_t icp6s_inhist[256];
573 u_quad_t icp6s_nd_toomanyopt; /* too many ND options */
574 struct icmp6errstat icp6s_outerrhist;
575 #define icp6s_odst_unreach_noroute \
576 icp6s_outerrhist.icp6errs_dst_unreach_noroute
577 #define icp6s_odst_unreach_admin icp6s_outerrhist.icp6errs_dst_unreach_admin
578 #define icp6s_odst_unreach_beyondscope \
579 icp6s_outerrhist.icp6errs_dst_unreach_beyondscope
580 #define icp6s_odst_unreach_addr icp6s_outerrhist.icp6errs_dst_unreach_addr
581 #define icp6s_odst_unreach_noport icp6s_outerrhist.icp6errs_dst_unreach_noport
582 #define icp6s_opacket_too_big icp6s_outerrhist.icp6errs_packet_too_big
583 #define icp6s_otime_exceed_transit \
584 icp6s_outerrhist.icp6errs_time_exceed_transit
585 #define icp6s_otime_exceed_reassembly \
586 icp6s_outerrhist.icp6errs_time_exceed_reassembly
587 #define icp6s_oparamprob_header icp6s_outerrhist.icp6errs_paramprob_header
588 #define icp6s_oparamprob_nextheader \
589 icp6s_outerrhist.icp6errs_paramprob_nextheader
590 #define icp6s_oparamprob_option icp6s_outerrhist.icp6errs_paramprob_option
591 #define icp6s_oredirect icp6s_outerrhist.icp6errs_redirect
592 #define icp6s_ounknown icp6s_outerrhist.icp6errs_unknown
593 u_quad_t icp6s_pmtuchg; /* path MTU changes */
594 u_quad_t icp6s_nd_badopt; /* bad ND options */
595 u_quad_t icp6s_badns; /* bad neighbor solicitation */
596 u_quad_t icp6s_badna; /* bad neighbor advertisement */
597 u_quad_t icp6s_badrs; /* bad router advertisement */
598 u_quad_t icp6s_badra; /* bad router advertisement */
599 u_quad_t icp6s_badredirect; /* bad redirect message */
604 * In-kernel consumers can use these accessor macros directly to update
607 #define ICMP6STAT_ADD(name, val) V_icmp6stat.name += (val)
608 #define ICMP6STAT_INC(name) ICMP6STAT_ADD(name, 1)
611 * Kernel module consumers must use this accessor macro.
613 void kmod_icmp6stat_inc(int statnum);
614 #define KMOD_ICMP6STAT_INC(name) \
615 kmod_icmp6stat_inc(offsetof(struct icmp6stat, name) / sizeof(u_quad_t))
619 * Names for ICMP sysctl objects
621 #define ICMPV6CTL_STATS 1
622 #define ICMPV6CTL_REDIRACCEPT 2 /* accept/process redirects */
623 #define ICMPV6CTL_REDIRTIMEOUT 3 /* redirect cache time */
625 #define ICMPV6CTL_ERRRATELIMIT 5 /* ICMPv6 error rate limitation */
627 #define ICMPV6CTL_ND6_PRUNE 6
628 #define ICMPV6CTL_ND6_DELAY 8
629 #define ICMPV6CTL_ND6_UMAXTRIES 9
630 #define ICMPV6CTL_ND6_MMAXTRIES 10
631 #define ICMPV6CTL_ND6_USELOOPBACK 11
632 /*#define ICMPV6CTL_ND6_PROXYALL 12 obsoleted, do not reuse here */
633 #define ICMPV6CTL_NODEINFO 13
634 #define ICMPV6CTL_ERRPPSLIMIT 14 /* ICMPv6 error pps limitation */
635 #define ICMPV6CTL_ND6_MAXNUDHINT 15
636 #define ICMPV6CTL_MTUDISC_HIWAT 16
637 #define ICMPV6CTL_MTUDISC_LOWAT 17
638 #define ICMPV6CTL_ND6_DEBUG 18
639 #define ICMPV6CTL_ND6_DRLIST 19
640 #define ICMPV6CTL_ND6_PRLIST 20
641 #define ICMPV6CTL_MLD_MAXSRCFILTER 21
642 #define ICMPV6CTL_MLD_SOMAXSRC 22
643 #define ICMPV6CTL_MLD_VERSION 23
644 #define ICMPV6CTL_ND6_MAXQLEN 24
645 #define ICMPV6CTL_MAXID 25
647 #define RTF_PROBEMTU RTF_PROTO1
655 void icmp6_init(void);
656 void icmp6_paramerror(struct mbuf *, int);
657 void icmp6_error(struct mbuf *, int, int, int);
658 void icmp6_error2(struct mbuf *, int, int, int, struct ifnet *);
659 int icmp6_input(struct mbuf **, int *, int);
660 void icmp6_fasttimo(void);
661 void icmp6_slowtimo(void);
662 void icmp6_reflect(struct mbuf *, size_t);
663 void icmp6_prepare(struct mbuf *);
664 void icmp6_redirect_input(struct mbuf *, int);
665 void icmp6_redirect_output(struct mbuf *, struct rtentry *);
668 void icmp6_mtudisc_update(struct ip6ctlparam *, int);
670 /* XXX: is this the right place for these macros? */
671 #define icmp6_ifstat_inc(ifp, tag) \
674 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->icmp6_ifstat->tag++; \
675 } while (/*CONSTCOND*/ 0)
677 #define icmp6_ifoutstat_inc(ifp, type, code) \
679 icmp6_ifstat_inc(ifp, ifs6_out_msg); \
680 if (type < ICMP6_INFOMSG_MASK) \
681 icmp6_ifstat_inc(ifp, ifs6_out_error); \
683 case ICMP6_DST_UNREACH: \
684 icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \
685 if (code == ICMP6_DST_UNREACH_ADMIN) \
686 icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \
688 case ICMP6_PACKET_TOO_BIG: \
689 icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \
691 case ICMP6_TIME_EXCEEDED: \
692 icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \
694 case ICMP6_PARAM_PROB: \
695 icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \
697 case ICMP6_ECHO_REQUEST: \
698 icmp6_ifstat_inc(ifp, ifs6_out_echo); \
700 case ICMP6_ECHO_REPLY: \
701 icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \
703 case MLD_LISTENER_QUERY: \
704 icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \
706 case MLD_LISTENER_REPORT: \
707 icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \
709 case MLD_LISTENER_DONE: \
710 icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \
712 case ND_ROUTER_SOLICIT: \
713 icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \
715 case ND_ROUTER_ADVERT: \
716 icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \
718 case ND_NEIGHBOR_SOLICIT: \
719 icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \
721 case ND_NEIGHBOR_ADVERT: \
722 icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \
725 icmp6_ifstat_inc(ifp, ifs6_out_redirect); \
728 } while (/*CONSTCOND*/ 0)
730 VNET_DECLARE(int, icmp6_rediraccept); /* accept/process redirects */
731 VNET_DECLARE(int, icmp6_redirtimeout); /* cache time for redirect routes */
733 #define V_icmp6_rediraccept VNET(icmp6_rediraccept)
734 #define V_icmp6_redirtimeout VNET(icmp6_redirtimeout)
736 #define ICMP6_NODEINFO_FQDNOK 0x1
737 #define ICMP6_NODEINFO_NODEADDROK 0x2
738 #define ICMP6_NODEINFO_TMPADDROK 0x4
739 #define ICMP6_NODEINFO_GLOBALOK 0x8
742 #endif /* not _NETINET_ICMP6_H_ */