2 /* $KAME: icmp6.h,v 1.46 2001/04/27 15:09:48 itojun Exp $ */
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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 */
147 #define ICMP6_DST_UNREACH_POLICY 5 /* failed ingress/egress policy */
148 #define ICMP6_DST_UNREACH_REJECT 6 /* Reject route to destination */
149 #define ICMP6_DST_UNREACH_SRCROUTE 7 /* Error in source routing header */
151 #define ICMP6_TIME_EXCEED_TRANSIT 0 /* ttl==0 in transit */
152 #define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* ttl==0 in reass */
154 #define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */
155 #define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized next header */
156 #define ICMP6_PARAMPROB_OPTION 2 /* unrecognized option */
158 #define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */
160 #define ICMP6_NI_SUBJ_IPV6 0 /* Query Subject is an IPv6 address */
161 #define ICMP6_NI_SUBJ_FQDN 1 /* Query Subject is a Domain name */
162 #define ICMP6_NI_SUBJ_IPV4 2 /* Query Subject is an IPv4 address */
164 #define ICMP6_NI_SUCCESS 0 /* node information successful reply */
165 #define ICMP6_NI_REFUSED 1 /* node information request is refused */
166 #define ICMP6_NI_UNKNOWN 2 /* unknown Qtype */
168 #define ICMP6_ROUTER_RENUMBERING_COMMAND 0 /* rr command */
169 #define ICMP6_ROUTER_RENUMBERING_RESULT 1 /* rr result */
170 #define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 /* rr seq num reset */
172 /* Used in kernel only */
173 #define ND_REDIRECT_ONLINK 0 /* redirect to an on-link node */
174 #define ND_REDIRECT_ROUTER 1 /* redirect to a better router */
177 * Multicast Listener Discovery
180 struct icmp6_hdr mld_icmp6_hdr;
181 struct in6_addr mld_addr; /* multicast address */
184 /* definitions to provide backward compatibility to old KAME applications */
186 #define mld6_hdr mld_hdr
187 #define mld6_type mld_type
188 #define mld6_code mld_code
189 #define mld6_cksum mld_cksum
190 #define mld6_maxdelay mld_maxdelay
191 #define mld6_reserved mld_reserved
192 #define mld6_addr mld_addr
195 /* shortcut macro definitions */
196 #define mld_type mld_icmp6_hdr.icmp6_type
197 #define mld_code mld_icmp6_hdr.icmp6_code
198 #define mld_cksum mld_icmp6_hdr.icmp6_cksum
199 #define mld_maxdelay mld_icmp6_hdr.icmp6_data16[0]
200 #define mld_reserved mld_icmp6_hdr.icmp6_data16[1]
201 #define mld_v2_reserved mld_icmp6_hdr.icmp6_data16[0]
202 #define mld_v2_numrecs mld_icmp6_hdr.icmp6_data16[1]
208 struct nd_router_solicit { /* router solicitation */
209 struct icmp6_hdr nd_rs_hdr;
210 /* could be followed by options */
213 #define nd_rs_type nd_rs_hdr.icmp6_type
214 #define nd_rs_code nd_rs_hdr.icmp6_code
215 #define nd_rs_cksum nd_rs_hdr.icmp6_cksum
216 #define nd_rs_reserved nd_rs_hdr.icmp6_data32[0]
218 struct nd_router_advert { /* router advertisement */
219 struct icmp6_hdr nd_ra_hdr;
220 u_int32_t nd_ra_reachable; /* reachable time */
221 u_int32_t nd_ra_retransmit; /* retransmit timer */
222 /* could be followed by options */
225 #define nd_ra_type nd_ra_hdr.icmp6_type
226 #define nd_ra_code nd_ra_hdr.icmp6_code
227 #define nd_ra_cksum nd_ra_hdr.icmp6_cksum
228 #define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0]
229 #define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1]
230 #define ND_RA_FLAG_MANAGED 0x80
231 #define ND_RA_FLAG_OTHER 0x40
232 #define ND_RA_FLAG_HA 0x20
235 * Router preference values based on draft-draves-ipngwg-router-selection-01.
236 * These are non-standard definitions.
238 #define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */
240 #define ND_RA_FLAG_RTPREF_HIGH 0x08 /* 00001000 */
241 #define ND_RA_FLAG_RTPREF_MEDIUM 0x00 /* 00000000 */
242 #define ND_RA_FLAG_RTPREF_LOW 0x18 /* 00011000 */
243 #define ND_RA_FLAG_RTPREF_RSV 0x10 /* 00010000 */
245 #define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1]
247 struct nd_neighbor_solicit { /* neighbor solicitation */
248 struct icmp6_hdr nd_ns_hdr;
249 struct in6_addr nd_ns_target; /*target address */
250 /* could be followed by options */
253 #define nd_ns_type nd_ns_hdr.icmp6_type
254 #define nd_ns_code nd_ns_hdr.icmp6_code
255 #define nd_ns_cksum nd_ns_hdr.icmp6_cksum
256 #define nd_ns_reserved nd_ns_hdr.icmp6_data32[0]
258 struct nd_neighbor_advert { /* neighbor advertisement */
259 struct icmp6_hdr nd_na_hdr;
260 struct in6_addr nd_na_target; /* target address */
261 /* could be followed by options */
264 #define nd_na_type nd_na_hdr.icmp6_type
265 #define nd_na_code nd_na_hdr.icmp6_code
266 #define nd_na_cksum nd_na_hdr.icmp6_cksum
267 #define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0]
268 #if BYTE_ORDER == BIG_ENDIAN
269 #define ND_NA_FLAG_ROUTER 0x80000000
270 #define ND_NA_FLAG_SOLICITED 0x40000000
271 #define ND_NA_FLAG_OVERRIDE 0x20000000
273 #if BYTE_ORDER == LITTLE_ENDIAN
274 #define ND_NA_FLAG_ROUTER 0x80
275 #define ND_NA_FLAG_SOLICITED 0x40
276 #define ND_NA_FLAG_OVERRIDE 0x20
280 struct nd_redirect { /* redirect */
281 struct icmp6_hdr nd_rd_hdr;
282 struct in6_addr nd_rd_target; /* target address */
283 struct in6_addr nd_rd_dst; /* destination address */
284 /* could be followed by options */
287 #define nd_rd_type nd_rd_hdr.icmp6_type
288 #define nd_rd_code nd_rd_hdr.icmp6_code
289 #define nd_rd_cksum nd_rd_hdr.icmp6_cksum
290 #define nd_rd_reserved nd_rd_hdr.icmp6_data32[0]
292 struct nd_opt_hdr { /* Neighbor discovery option header */
293 u_int8_t nd_opt_type;
295 /* followed by option specific data*/
298 #define ND_OPT_SOURCE_LINKADDR 1
299 #define ND_OPT_TARGET_LINKADDR 2
300 #define ND_OPT_PREFIX_INFORMATION 3
301 #define ND_OPT_REDIRECTED_HEADER 4
303 #define ND_OPT_NONCE 14 /* RFC 3971 */
304 #define ND_OPT_ROUTE_INFO 24 /* RFC 4191 */
305 #define ND_OPT_RDNSS 25 /* RFC 6106 */
306 #define ND_OPT_DNSSL 31 /* RFC 6106 */
307 #define ND_OPT_MAX 31
309 struct nd_opt_prefix_info { /* prefix information */
310 u_int8_t nd_opt_pi_type;
311 u_int8_t nd_opt_pi_len;
312 u_int8_t nd_opt_pi_prefix_len;
313 u_int8_t nd_opt_pi_flags_reserved;
314 u_int32_t nd_opt_pi_valid_time;
315 u_int32_t nd_opt_pi_preferred_time;
316 u_int32_t nd_opt_pi_reserved2;
317 struct in6_addr nd_opt_pi_prefix;
320 #define ND_OPT_PI_FLAG_ONLINK 0x80
321 #define ND_OPT_PI_FLAG_AUTO 0x40
323 struct nd_opt_rd_hdr { /* redirected header */
324 u_int8_t nd_opt_rh_type;
325 u_int8_t nd_opt_rh_len;
326 u_int16_t nd_opt_rh_reserved1;
327 u_int32_t nd_opt_rh_reserved2;
328 /* followed by IP header and data */
331 struct nd_opt_mtu { /* MTU option */
332 u_int8_t nd_opt_mtu_type;
333 u_int8_t nd_opt_mtu_len;
334 u_int16_t nd_opt_mtu_reserved;
335 u_int32_t nd_opt_mtu_mtu;
338 #define ND_OPT_NONCE_LEN ((1 * 8) - 2)
339 #if ((ND_OPT_NONCE_LEN + 2) % 8) != 0
340 #error "(ND_OPT_NONCE_LEN + 2) must be a multiple of 8."
342 struct nd_opt_nonce { /* nonce option */
343 u_int8_t nd_opt_nonce_type;
344 u_int8_t nd_opt_nonce_len;
345 u_int8_t nd_opt_nonce[ND_OPT_NONCE_LEN];
348 struct nd_opt_route_info { /* route info */
349 u_int8_t nd_opt_rti_type;
350 u_int8_t nd_opt_rti_len;
351 u_int8_t nd_opt_rti_prefixlen;
352 u_int8_t nd_opt_rti_flags;
353 u_int32_t nd_opt_rti_lifetime;
357 struct nd_opt_rdnss { /* RDNSS option (RFC 6106) */
358 u_int8_t nd_opt_rdnss_type;
359 u_int8_t nd_opt_rdnss_len;
360 u_int16_t nd_opt_rdnss_reserved;
361 u_int32_t nd_opt_rdnss_lifetime;
362 /* followed by list of recursive DNS servers */
365 struct nd_opt_dnssl { /* DNSSL option (RFC 6106) */
366 u_int8_t nd_opt_dnssl_type;
367 u_int8_t nd_opt_dnssl_len;
368 u_int16_t nd_opt_dnssl_reserved;
369 u_int32_t nd_opt_dnssl_lifetime;
370 /* followed by list of DNS search domains */
377 struct icmp6_namelookup {
378 struct icmp6_hdr icmp6_nl_hdr;
379 u_int8_t icmp6_nl_nonce[8];
380 int32_t icmp6_nl_ttl;
382 u_int8_t icmp6_nl_len;
383 u_int8_t icmp6_nl_name[3];
385 /* could be followed by options */
389 * icmp6 node information
391 struct icmp6_nodeinfo {
392 struct icmp6_hdr icmp6_ni_hdr;
393 u_int8_t icmp6_ni_nonce[8];
394 /* could be followed by reply data */
397 #define ni_type icmp6_ni_hdr.icmp6_type
398 #define ni_code icmp6_ni_hdr.icmp6_code
399 #define ni_cksum icmp6_ni_hdr.icmp6_cksum
400 #define ni_qtype icmp6_ni_hdr.icmp6_data16[0]
401 #define ni_flags icmp6_ni_hdr.icmp6_data16[1]
403 #define NI_QTYPE_NOOP 0 /* NOOP */
404 #define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes */
405 #define NI_QTYPE_FQDN 2 /* FQDN (draft 04) */
406 #define NI_QTYPE_DNSNAME 2 /* DNS Name */
407 #define NI_QTYPE_NODEADDR 3 /* Node Addresses */
408 #define NI_QTYPE_IPV4ADDR 4 /* IPv4 Addresses */
410 #if BYTE_ORDER == BIG_ENDIAN
411 #define NI_SUPTYPE_FLAG_COMPRESS 0x1
412 #define NI_FQDN_FLAG_VALIDTTL 0x1
413 #elif BYTE_ORDER == LITTLE_ENDIAN
414 #define NI_SUPTYPE_FLAG_COMPRESS 0x0100
415 #define NI_FQDN_FLAG_VALIDTTL 0x0100
418 #ifdef NAME_LOOKUPS_04
419 #if BYTE_ORDER == BIG_ENDIAN
420 #define NI_NODEADDR_FLAG_LINKLOCAL 0x1
421 #define NI_NODEADDR_FLAG_SITELOCAL 0x2
422 #define NI_NODEADDR_FLAG_GLOBAL 0x4
423 #define NI_NODEADDR_FLAG_ALL 0x8
424 #define NI_NODEADDR_FLAG_TRUNCATE 0x10
425 #define NI_NODEADDR_FLAG_ANYCAST 0x20 /* just experimental. not in spec */
426 #elif BYTE_ORDER == LITTLE_ENDIAN
427 #define NI_NODEADDR_FLAG_LINKLOCAL 0x0100
428 #define NI_NODEADDR_FLAG_SITELOCAL 0x0200
429 #define NI_NODEADDR_FLAG_GLOBAL 0x0400
430 #define NI_NODEADDR_FLAG_ALL 0x0800
431 #define NI_NODEADDR_FLAG_TRUNCATE 0x1000
432 #define NI_NODEADDR_FLAG_ANYCAST 0x2000 /* just experimental. not in spec */
434 #else /* draft-ietf-ipngwg-icmp-name-lookups-05 (and later?) */
435 #if BYTE_ORDER == BIG_ENDIAN
436 #define NI_NODEADDR_FLAG_TRUNCATE 0x1
437 #define NI_NODEADDR_FLAG_ALL 0x2
438 #define NI_NODEADDR_FLAG_COMPAT 0x4
439 #define NI_NODEADDR_FLAG_LINKLOCAL 0x8
440 #define NI_NODEADDR_FLAG_SITELOCAL 0x10
441 #define NI_NODEADDR_FLAG_GLOBAL 0x20
442 #define NI_NODEADDR_FLAG_ANYCAST 0x40 /* just experimental. not in spec */
443 #elif BYTE_ORDER == LITTLE_ENDIAN
444 #define NI_NODEADDR_FLAG_TRUNCATE 0x0100
445 #define NI_NODEADDR_FLAG_ALL 0x0200
446 #define NI_NODEADDR_FLAG_COMPAT 0x0400
447 #define NI_NODEADDR_FLAG_LINKLOCAL 0x0800
448 #define NI_NODEADDR_FLAG_SITELOCAL 0x1000
449 #define NI_NODEADDR_FLAG_GLOBAL 0x2000
450 #define NI_NODEADDR_FLAG_ANYCAST 0x4000 /* just experimental. not in spec */
454 struct ni_reply_fqdn {
455 u_int32_t ni_fqdn_ttl; /* TTL */
456 u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */
457 u_int8_t ni_fqdn_name[3]; /* XXX: alignment */
461 * Router Renumbering. as router-renum-08.txt
463 struct icmp6_router_renum { /* router renumbering header */
464 struct icmp6_hdr rr_hdr;
467 u_int16_t rr_maxdelay;
468 u_int32_t rr_reserved;
471 #define ICMP6_RR_FLAGS_TEST 0x80
472 #define ICMP6_RR_FLAGS_REQRESULT 0x40
473 #define ICMP6_RR_FLAGS_FORCEAPPLY 0x20
474 #define ICMP6_RR_FLAGS_SPECSITE 0x10
475 #define ICMP6_RR_FLAGS_PREVDONE 0x08
477 #define rr_type rr_hdr.icmp6_type
478 #define rr_code rr_hdr.icmp6_code
479 #define rr_cksum rr_hdr.icmp6_cksum
480 #define rr_seqnum rr_hdr.icmp6_data32[0]
482 struct rr_pco_match { /* match prefix part */
485 u_int8_t rpm_ordinal;
486 u_int8_t rpm_matchlen;
489 u_int16_t rpm_reserved;
490 struct in6_addr rpm_prefix;
493 #define RPM_PCO_ADD 1
494 #define RPM_PCO_CHANGE 2
495 #define RPM_PCO_SETGLOBAL 3
496 #define RPM_PCO_MAX 4
498 struct rr_pco_use { /* use prefix part */
500 u_int8_t rpu_keeplen;
502 u_int8_t rpu_raflags;
503 u_int32_t rpu_vltime;
504 u_int32_t rpu_pltime;
506 struct in6_addr rpu_prefix;
508 #define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK 0x80
509 #define ICMP6_RR_PCOUSE_RAFLAGS_AUTO 0x40
511 #if BYTE_ORDER == BIG_ENDIAN
512 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000
513 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000
514 #elif BYTE_ORDER == LITTLE_ENDIAN
515 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80
516 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40
519 struct rr_result { /* router renumbering result message */
521 u_int8_t rrr_ordinal;
522 u_int8_t rrr_matchedlen;
524 struct in6_addr rrr_prefix;
526 #if BYTE_ORDER == BIG_ENDIAN
527 #define ICMP6_RR_RESULT_FLAGS_OOB 0x0002
528 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001
529 #elif BYTE_ORDER == LITTLE_ENDIAN
530 #define ICMP6_RR_RESULT_FLAGS_OOB 0x0200
531 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0100
535 * icmp6 filter structures.
538 struct icmp6_filter {
539 u_int32_t icmp6_filt[8];
543 #define ICMP6_FILTER_SETPASSALL(filterp) \
546 p = (u_char *)filterp; \
547 for (i = 0; i < sizeof(struct icmp6_filter); i++) \
549 } while (/*CONSTCOND*/ 0)
550 #define ICMP6_FILTER_SETBLOCKALL(filterp) \
551 bzero(filterp, sizeof(struct icmp6_filter))
553 #define ICMP6_FILTER_SETPASSALL(filterp) \
554 memset(filterp, 0xff, sizeof(struct icmp6_filter))
555 #define ICMP6_FILTER_SETBLOCKALL(filterp) \
556 memset(filterp, 0x00, sizeof(struct icmp6_filter))
559 #define ICMP6_FILTER_SETPASS(type, filterp) \
560 (((filterp)->icmp6_filt[(type) >> 5]) |= (1 << ((type) & 31)))
561 #define ICMP6_FILTER_SETBLOCK(type, filterp) \
562 (((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31)))
563 #define ICMP6_FILTER_WILLPASS(type, filterp) \
564 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0)
565 #define ICMP6_FILTER_WILLBLOCK(type, filterp) \
566 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0)
569 * Variables related to this implementation
570 * of the internet control message protocol version 6.
572 struct icmp6errstat {
573 uint64_t icp6errs_dst_unreach_noroute;
574 uint64_t icp6errs_dst_unreach_admin;
575 uint64_t icp6errs_dst_unreach_beyondscope;
576 uint64_t icp6errs_dst_unreach_addr;
577 uint64_t icp6errs_dst_unreach_noport;
578 uint64_t icp6errs_packet_too_big;
579 uint64_t icp6errs_time_exceed_transit;
580 uint64_t icp6errs_time_exceed_reassembly;
581 uint64_t icp6errs_paramprob_header;
582 uint64_t icp6errs_paramprob_nextheader;
583 uint64_t icp6errs_paramprob_option;
584 uint64_t icp6errs_redirect; /* we regard redirect as an error here */
585 uint64_t icp6errs_unknown;
589 /* statistics related to icmp6 packets generated */
590 uint64_t icp6s_error; /* # of calls to icmp6_error */
591 uint64_t icp6s_canterror; /* no error 'cuz old was icmp */
592 uint64_t icp6s_toofreq; /* no error 'cuz rate limitation */
593 uint64_t icp6s_outhist[256];
594 /* statistics related to input message processed */
595 uint64_t icp6s_badcode; /* icmp6_code out of range */
596 uint64_t icp6s_tooshort; /* packet < sizeof(struct icmp6_hdr) */
597 uint64_t icp6s_checksum; /* bad checksum */
598 uint64_t icp6s_badlen; /* calculated bound mismatch */
600 * number of responses: this member is inherited from netinet code, but
601 * for netinet6 code, it is already available in icp6s_outhist[].
603 uint64_t icp6s_reflect;
604 uint64_t icp6s_inhist[256];
605 uint64_t icp6s_nd_toomanyopt; /* too many ND options */
606 struct icmp6errstat icp6s_outerrhist;
607 #define icp6s_odst_unreach_noroute \
608 icp6s_outerrhist.icp6errs_dst_unreach_noroute
609 #define icp6s_odst_unreach_admin icp6s_outerrhist.icp6errs_dst_unreach_admin
610 #define icp6s_odst_unreach_beyondscope \
611 icp6s_outerrhist.icp6errs_dst_unreach_beyondscope
612 #define icp6s_odst_unreach_addr icp6s_outerrhist.icp6errs_dst_unreach_addr
613 #define icp6s_odst_unreach_noport icp6s_outerrhist.icp6errs_dst_unreach_noport
614 #define icp6s_opacket_too_big icp6s_outerrhist.icp6errs_packet_too_big
615 #define icp6s_otime_exceed_transit \
616 icp6s_outerrhist.icp6errs_time_exceed_transit
617 #define icp6s_otime_exceed_reassembly \
618 icp6s_outerrhist.icp6errs_time_exceed_reassembly
619 #define icp6s_oparamprob_header icp6s_outerrhist.icp6errs_paramprob_header
620 #define icp6s_oparamprob_nextheader \
621 icp6s_outerrhist.icp6errs_paramprob_nextheader
622 #define icp6s_oparamprob_option icp6s_outerrhist.icp6errs_paramprob_option
623 #define icp6s_oredirect icp6s_outerrhist.icp6errs_redirect
624 #define icp6s_ounknown icp6s_outerrhist.icp6errs_unknown
625 uint64_t icp6s_pmtuchg; /* path MTU changes */
626 uint64_t icp6s_nd_badopt; /* bad ND options */
627 uint64_t icp6s_badns; /* bad neighbor solicitation */
628 uint64_t icp6s_badna; /* bad neighbor advertisement */
629 uint64_t icp6s_badrs; /* bad router advertisement */
630 uint64_t icp6s_badra; /* bad router advertisement */
631 uint64_t icp6s_badredirect; /* bad redirect message */
635 #include <sys/counter.h>
637 VNET_PCPUSTAT_DECLARE(struct icmp6stat, icmp6stat);
639 * In-kernel consumers can use these accessor macros directly to update
642 #define ICMP6STAT_ADD(name, val) \
643 VNET_PCPUSTAT_ADD(struct icmp6stat, icmp6stat, name, (val))
644 #define ICMP6STAT_INC(name) ICMP6STAT_ADD(name, 1)
647 * Kernel module consumers must use this accessor macro.
649 void kmod_icmp6stat_inc(int statnum);
650 #define KMOD_ICMP6STAT_INC(name) \
651 kmod_icmp6stat_inc(offsetof(struct icmp6stat, name) / sizeof(uint64_t))
655 * Names for ICMP sysctl objects
657 #define ICMPV6CTL_STATS 1
658 #define ICMPV6CTL_REDIRACCEPT 2 /* accept/process redirects */
659 #define ICMPV6CTL_REDIRTIMEOUT 3 /* redirect cache time */
661 #define ICMPV6CTL_ERRRATELIMIT 5 /* ICMPv6 error rate limitation */
663 #define ICMPV6CTL_ND6_PRUNE 6
664 #define ICMPV6CTL_ND6_DELAY 8
665 #define ICMPV6CTL_ND6_UMAXTRIES 9
666 #define ICMPV6CTL_ND6_MMAXTRIES 10
667 #define ICMPV6CTL_ND6_USELOOPBACK 11
668 /*#define ICMPV6CTL_ND6_PROXYALL 12 obsoleted, do not reuse here */
669 #define ICMPV6CTL_NODEINFO 13
670 #define ICMPV6CTL_ERRPPSLIMIT 14 /* ICMPv6 error pps limitation */
671 #define ICMPV6CTL_ND6_MAXNUDHINT 15
672 #define ICMPV6CTL_MTUDISC_HIWAT 16
673 #define ICMPV6CTL_MTUDISC_LOWAT 17
674 #define ICMPV6CTL_ND6_DEBUG 18
675 #define ICMPV6CTL_ND6_DRLIST 19
676 #define ICMPV6CTL_ND6_PRLIST 20
677 #define ICMPV6CTL_MLD_MAXSRCFILTER 21
678 #define ICMPV6CTL_MLD_SOMAXSRC 22
679 #define ICMPV6CTL_MLD_VERSION 23
680 #define ICMPV6CTL_ND6_MAXQLEN 24
681 #define ICMPV6CTL_NODEINFO_OLDMCPREFIX 25
682 #define ICMPV6CTL_MAXID 26
684 #define RTF_PROBEMTU RTF_PROTO1
692 void icmp6_paramerror(struct mbuf *, int);
693 void icmp6_error(struct mbuf *, int, int, int);
694 void icmp6_error2(struct mbuf *, int, int, int, struct ifnet *);
695 int icmp6_input(struct mbuf **, int *, int);
696 void icmp6_fasttimo(void);
697 void icmp6_slowtimo(void);
698 void icmp6_reflect(struct mbuf *, size_t);
699 void icmp6_prepare(struct mbuf *);
700 void icmp6_redirect_input(struct mbuf *, int);
701 void icmp6_redirect_output(struct mbuf *, struct rtentry *);
704 void icmp6_mtudisc_update(struct ip6ctlparam *, int);
706 /* XXX: is this the right place for these macros? */
707 #define icmp6_ifstat_inc(ifp, tag) \
710 counter_u64_add(((struct in6_ifextra *) \
711 ((ifp)->if_afdata[AF_INET6]))->icmp6_ifstat[\
712 offsetof(struct icmp6_ifstat, tag) / sizeof(uint64_t)], 1);\
713 } while (/*CONSTCOND*/ 0)
715 #define icmp6_ifoutstat_inc(ifp, type, code) \
717 icmp6_ifstat_inc(ifp, ifs6_out_msg); \
718 if (type < ICMP6_INFOMSG_MASK) \
719 icmp6_ifstat_inc(ifp, ifs6_out_error); \
721 case ICMP6_DST_UNREACH: \
722 icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \
723 if (code == ICMP6_DST_UNREACH_ADMIN) \
724 icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \
726 case ICMP6_PACKET_TOO_BIG: \
727 icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \
729 case ICMP6_TIME_EXCEEDED: \
730 icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \
732 case ICMP6_PARAM_PROB: \
733 icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \
735 case ICMP6_ECHO_REQUEST: \
736 icmp6_ifstat_inc(ifp, ifs6_out_echo); \
738 case ICMP6_ECHO_REPLY: \
739 icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \
741 case MLD_LISTENER_QUERY: \
742 icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \
744 case MLD_LISTENER_REPORT: \
745 icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \
747 case MLD_LISTENER_DONE: \
748 icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \
750 case ND_ROUTER_SOLICIT: \
751 icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \
753 case ND_ROUTER_ADVERT: \
754 icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \
756 case ND_NEIGHBOR_SOLICIT: \
757 icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \
759 case ND_NEIGHBOR_ADVERT: \
760 icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \
763 icmp6_ifstat_inc(ifp, ifs6_out_redirect); \
766 } while (/*CONSTCOND*/ 0)
768 VNET_DECLARE(int, icmp6_rediraccept); /* accept/process redirects */
769 VNET_DECLARE(int, icmp6_redirtimeout); /* cache time for redirect routes */
771 #define V_icmp6_rediraccept VNET(icmp6_rediraccept)
772 #define V_icmp6_redirtimeout VNET(icmp6_redirtimeout)
774 #define ICMP6_NODEINFO_FQDNOK 0x1
775 #define ICMP6_NODEINFO_NODEADDROK 0x2
776 #define ICMP6_NODEINFO_TMPADDROK 0x4
777 #define ICMP6_NODEINFO_GLOBALOK 0x8
780 #endif /* not _NETINET_ICMP6_H_ */