1 /* $KAME: icmp6.h,v 1.46 2001/04/27 15:09:48 itojun Exp $ */
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63 #ifndef _NETINET_ICMP6_H_
64 #define _NETINET_ICMP6_H_
66 #define ICMPV6_PLD_MAXLEN 1232 /* IPV6_MMTU - sizeof(struct ip6_hdr)
67 - sizeof(struct icmp6_hdr) */
70 u_int8_t icmp6_type; /* type field */
71 u_int8_t icmp6_code; /* code field */
72 u_int16_t icmp6_cksum; /* checksum field */
74 u_int32_t icmp6_un_data32[1]; /* type-specific field */
75 u_int16_t icmp6_un_data16[2]; /* type-specific field */
76 u_int8_t icmp6_un_data8[4]; /* type-specific field */
80 #define icmp6_data32 icmp6_dataun.icmp6_un_data32
81 #define icmp6_data16 icmp6_dataun.icmp6_un_data16
82 #define icmp6_data8 icmp6_dataun.icmp6_un_data8
83 #define icmp6_pptr icmp6_data32[0] /* parameter prob */
84 #define icmp6_mtu icmp6_data32[0] /* packet too big */
85 #define icmp6_id icmp6_data16[0] /* echo request/reply */
86 #define icmp6_seq icmp6_data16[1] /* echo request/reply */
87 #define icmp6_maxdelay icmp6_data16[0] /* mcast group membership */
89 #define ICMP6_DST_UNREACH 1 /* dest unreachable, codes: */
90 #define ICMP6_PACKET_TOO_BIG 2 /* packet too big */
91 #define ICMP6_TIME_EXCEEDED 3 /* time exceeded, code: */
92 #define ICMP6_PARAM_PROB 4 /* ip6 header bad */
94 #define ICMP6_ECHO_REQUEST 128 /* echo service */
95 #define ICMP6_ECHO_REPLY 129 /* echo reply */
96 #define MLD_LISTENER_QUERY 130 /* multicast listener query */
97 #define MLD_LISTENER_REPORT 131 /* multicast listener report */
98 #define MLD_LISTENER_DONE 132 /* multicast listener done */
99 #define MLD_LISTENER_REDUCTION MLD_LISTENER_DONE /* RFC3542 definition */
102 #define ICMP6_MEMBERSHIP_QUERY 130 /* group membership query */
103 #define ICMP6_MEMBERSHIP_REPORT 131 /* group membership report */
104 #define ICMP6_MEMBERSHIP_REDUCTION 132 /* group membership termination */
107 /* the followings are for backward compatibility to old KAME apps. */
108 #define MLD6_LISTENER_QUERY MLD_LISTENER_QUERY
109 #define MLD6_LISTENER_REPORT MLD_LISTENER_REPORT
110 #define MLD6_LISTENER_DONE MLD_LISTENER_DONE
113 #define ND_ROUTER_SOLICIT 133 /* router solicitation */
114 #define ND_ROUTER_ADVERT 134 /* router advertisement */
115 #define ND_NEIGHBOR_SOLICIT 135 /* neighbor solicitation */
116 #define ND_NEIGHBOR_ADVERT 136 /* neighbor advertisement */
117 #define ND_REDIRECT 137 /* redirect */
119 #define ICMP6_ROUTER_RENUMBERING 138 /* router renumbering */
121 #define ICMP6_WRUREQUEST 139 /* who are you request */
122 #define ICMP6_WRUREPLY 140 /* who are you reply */
123 #define ICMP6_FQDN_QUERY 139 /* FQDN query */
124 #define ICMP6_FQDN_REPLY 140 /* FQDN reply */
125 #define ICMP6_NI_QUERY 139 /* node information request */
126 #define ICMP6_NI_REPLY 140 /* node information reply */
127 #define MLDV2_LISTENER_REPORT 143 /* RFC3810 listener report */
129 /* The definitions below are experimental. TBA */
130 #define MLD_MTRACE_RESP 200 /* mtrace resp (to sender) */
131 #define MLD_MTRACE 201 /* mtrace messages */
134 #define MLD6_MTRACE_RESP MLD_MTRACE_RESP
135 #define MLD6_MTRACE MLD_MTRACE
138 #define ICMP6_MAXTYPE 201
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 #define ICMP6_DST_UNREACH_POLICY 5 /* failed ingress/egress policy */
147 #define ICMP6_DST_UNREACH_REJECT 6 /* Reject route to destination */
148 #define ICMP6_DST_UNREACH_SRCROUTE 7 /* Error in source routing header */
150 #define ICMP6_TIME_EXCEED_TRANSIT 0 /* ttl==0 in transit */
151 #define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* ttl==0 in reass */
153 #define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */
154 #define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized next header */
155 #define ICMP6_PARAMPROB_OPTION 2 /* unrecognized option */
157 #define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */
159 #define ICMP6_NI_SUBJ_IPV6 0 /* Query Subject is an IPv6 address */
160 #define ICMP6_NI_SUBJ_FQDN 1 /* Query Subject is a Domain name */
161 #define ICMP6_NI_SUBJ_IPV4 2 /* Query Subject is an IPv4 address */
163 #define ICMP6_NI_SUCCESS 0 /* node information successful reply */
164 #define ICMP6_NI_REFUSED 1 /* node information request is refused */
165 #define ICMP6_NI_UNKNOWN 2 /* unknown Qtype */
167 #define ICMP6_ROUTER_RENUMBERING_COMMAND 0 /* rr command */
168 #define ICMP6_ROUTER_RENUMBERING_RESULT 1 /* rr result */
169 #define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 /* rr seq num reset */
171 /* Used in kernel only */
172 #define ND_REDIRECT_ONLINK 0 /* redirect to an on-link node */
173 #define ND_REDIRECT_ROUTER 1 /* redirect to a better router */
176 * Multicast Listener Discovery
179 struct icmp6_hdr mld_icmp6_hdr;
180 struct in6_addr mld_addr; /* multicast address */
183 /* definitions to provide backward compatibility to old KAME applications */
185 #define mld6_hdr mld_hdr
186 #define mld6_type mld_type
187 #define mld6_code mld_code
188 #define mld6_cksum mld_cksum
189 #define mld6_maxdelay mld_maxdelay
190 #define mld6_reserved mld_reserved
191 #define mld6_addr mld_addr
194 /* shortcut macro definitions */
195 #define mld_type mld_icmp6_hdr.icmp6_type
196 #define mld_code mld_icmp6_hdr.icmp6_code
197 #define mld_cksum mld_icmp6_hdr.icmp6_cksum
198 #define mld_maxdelay mld_icmp6_hdr.icmp6_data16[0]
199 #define mld_reserved mld_icmp6_hdr.icmp6_data16[1]
200 #define mld_v2_reserved mld_icmp6_hdr.icmp6_data16[0]
201 #define mld_v2_numrecs mld_icmp6_hdr.icmp6_data16[1]
207 struct nd_router_solicit { /* router solicitation */
208 struct icmp6_hdr nd_rs_hdr;
209 /* could be followed by options */
212 #define nd_rs_type nd_rs_hdr.icmp6_type
213 #define nd_rs_code nd_rs_hdr.icmp6_code
214 #define nd_rs_cksum nd_rs_hdr.icmp6_cksum
215 #define nd_rs_reserved nd_rs_hdr.icmp6_data32[0]
217 struct nd_router_advert { /* router advertisement */
218 struct icmp6_hdr nd_ra_hdr;
219 u_int32_t nd_ra_reachable; /* reachable time */
220 u_int32_t nd_ra_retransmit; /* retransmit timer */
221 /* could be followed by options */
224 #define nd_ra_type nd_ra_hdr.icmp6_type
225 #define nd_ra_code nd_ra_hdr.icmp6_code
226 #define nd_ra_cksum nd_ra_hdr.icmp6_cksum
227 #define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0]
228 #define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1]
229 #define ND_RA_FLAG_MANAGED 0x80
230 #define ND_RA_FLAG_OTHER 0x40
231 #define ND_RA_FLAG_HA 0x20
234 * Router preference values based on draft-draves-ipngwg-router-selection-01.
235 * These are non-standard definitions.
237 #define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */
239 #define ND_RA_FLAG_RTPREF_HIGH 0x08 /* 00001000 */
240 #define ND_RA_FLAG_RTPREF_MEDIUM 0x00 /* 00000000 */
241 #define ND_RA_FLAG_RTPREF_LOW 0x18 /* 00011000 */
242 #define ND_RA_FLAG_RTPREF_RSV 0x10 /* 00010000 */
245 #define ND_RA_FLAG_IPV6_ONLY 0x02 /* draft-ietf-6man-ipv6only-flag */
248 #define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1]
250 struct nd_neighbor_solicit { /* neighbor solicitation */
251 struct icmp6_hdr nd_ns_hdr;
252 struct in6_addr nd_ns_target; /*target address */
253 /* could be followed by options */
256 #define nd_ns_type nd_ns_hdr.icmp6_type
257 #define nd_ns_code nd_ns_hdr.icmp6_code
258 #define nd_ns_cksum nd_ns_hdr.icmp6_cksum
259 #define nd_ns_reserved nd_ns_hdr.icmp6_data32[0]
261 struct nd_neighbor_advert { /* neighbor advertisement */
262 struct icmp6_hdr nd_na_hdr;
263 struct in6_addr nd_na_target; /* target address */
264 /* could be followed by options */
267 #define nd_na_type nd_na_hdr.icmp6_type
268 #define nd_na_code nd_na_hdr.icmp6_code
269 #define nd_na_cksum nd_na_hdr.icmp6_cksum
270 #define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0]
271 #if BYTE_ORDER == BIG_ENDIAN
272 #define ND_NA_FLAG_ROUTER 0x80000000
273 #define ND_NA_FLAG_SOLICITED 0x40000000
274 #define ND_NA_FLAG_OVERRIDE 0x20000000
276 #if BYTE_ORDER == LITTLE_ENDIAN
277 #define ND_NA_FLAG_ROUTER 0x80
278 #define ND_NA_FLAG_SOLICITED 0x40
279 #define ND_NA_FLAG_OVERRIDE 0x20
283 struct nd_redirect { /* redirect */
284 struct icmp6_hdr nd_rd_hdr;
285 struct in6_addr nd_rd_target; /* target address */
286 struct in6_addr nd_rd_dst; /* destination address */
287 /* could be followed by options */
290 #define nd_rd_type nd_rd_hdr.icmp6_type
291 #define nd_rd_code nd_rd_hdr.icmp6_code
292 #define nd_rd_cksum nd_rd_hdr.icmp6_cksum
293 #define nd_rd_reserved nd_rd_hdr.icmp6_data32[0]
295 struct nd_opt_hdr { /* Neighbor discovery option header */
296 u_int8_t nd_opt_type;
298 /* followed by option specific data*/
301 #define ND_OPT_SOURCE_LINKADDR 1
302 #define ND_OPT_TARGET_LINKADDR 2
303 #define ND_OPT_PREFIX_INFORMATION 3
304 #define ND_OPT_REDIRECTED_HEADER 4
306 #define ND_OPT_NONCE 14 /* RFC 3971 */
307 #define ND_OPT_ROUTE_INFO 24 /* RFC 4191 */
308 #define ND_OPT_RDNSS 25 /* RFC 6106 */
309 #define ND_OPT_DNSSL 31 /* RFC 6106 */
310 #define ND_OPT_MAX 31
312 struct nd_opt_prefix_info { /* prefix information */
313 u_int8_t nd_opt_pi_type;
314 u_int8_t nd_opt_pi_len;
315 u_int8_t nd_opt_pi_prefix_len;
316 u_int8_t nd_opt_pi_flags_reserved;
317 u_int32_t nd_opt_pi_valid_time;
318 u_int32_t nd_opt_pi_preferred_time;
319 u_int32_t nd_opt_pi_reserved2;
320 struct in6_addr nd_opt_pi_prefix;
323 #define ND_OPT_PI_FLAG_ONLINK 0x80
324 #define ND_OPT_PI_FLAG_AUTO 0x40
326 struct nd_opt_rd_hdr { /* redirected header */
327 u_int8_t nd_opt_rh_type;
328 u_int8_t nd_opt_rh_len;
329 u_int16_t nd_opt_rh_reserved1;
330 u_int32_t nd_opt_rh_reserved2;
331 /* followed by IP header and data */
334 struct nd_opt_mtu { /* MTU option */
335 u_int8_t nd_opt_mtu_type;
336 u_int8_t nd_opt_mtu_len;
337 u_int16_t nd_opt_mtu_reserved;
338 u_int32_t nd_opt_mtu_mtu;
341 #define ND_OPT_NONCE_LEN ((1 * 8) - 2)
342 #if ((ND_OPT_NONCE_LEN + 2) % 8) != 0
343 #error "(ND_OPT_NONCE_LEN + 2) must be a multiple of 8."
345 struct nd_opt_nonce { /* nonce option */
346 u_int8_t nd_opt_nonce_type;
347 u_int8_t nd_opt_nonce_len;
348 u_int8_t nd_opt_nonce[ND_OPT_NONCE_LEN];
351 struct nd_opt_route_info { /* route info */
352 u_int8_t nd_opt_rti_type;
353 u_int8_t nd_opt_rti_len;
354 u_int8_t nd_opt_rti_prefixlen;
355 u_int8_t nd_opt_rti_flags;
356 u_int32_t nd_opt_rti_lifetime;
360 struct nd_opt_rdnss { /* RDNSS option (RFC 6106) */
361 u_int8_t nd_opt_rdnss_type;
362 u_int8_t nd_opt_rdnss_len;
363 u_int16_t nd_opt_rdnss_reserved;
364 u_int32_t nd_opt_rdnss_lifetime;
365 /* followed by list of recursive DNS servers */
368 struct nd_opt_dnssl { /* DNSSL option (RFC 6106) */
369 u_int8_t nd_opt_dnssl_type;
370 u_int8_t nd_opt_dnssl_len;
371 u_int16_t nd_opt_dnssl_reserved;
372 u_int32_t nd_opt_dnssl_lifetime;
373 /* followed by list of DNS search domains */
380 struct icmp6_namelookup {
381 struct icmp6_hdr icmp6_nl_hdr;
382 u_int8_t icmp6_nl_nonce[8];
383 int32_t icmp6_nl_ttl;
385 u_int8_t icmp6_nl_len;
386 u_int8_t icmp6_nl_name[3];
388 /* could be followed by options */
392 * icmp6 node information
394 struct icmp6_nodeinfo {
395 struct icmp6_hdr icmp6_ni_hdr;
396 u_int8_t icmp6_ni_nonce[8];
397 /* could be followed by reply data */
400 #define ni_type icmp6_ni_hdr.icmp6_type
401 #define ni_code icmp6_ni_hdr.icmp6_code
402 #define ni_cksum icmp6_ni_hdr.icmp6_cksum
403 #define ni_qtype icmp6_ni_hdr.icmp6_data16[0]
404 #define ni_flags icmp6_ni_hdr.icmp6_data16[1]
406 #define NI_QTYPE_NOOP 0 /* NOOP */
407 #define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes */
408 #define NI_QTYPE_FQDN 2 /* FQDN (draft 04) */
409 #define NI_QTYPE_DNSNAME 2 /* DNS Name */
410 #define NI_QTYPE_NODEADDR 3 /* Node Addresses */
411 #define NI_QTYPE_IPV4ADDR 4 /* IPv4 Addresses */
413 #if BYTE_ORDER == BIG_ENDIAN
414 #define NI_SUPTYPE_FLAG_COMPRESS 0x1
415 #define NI_FQDN_FLAG_VALIDTTL 0x1
416 #elif BYTE_ORDER == LITTLE_ENDIAN
417 #define NI_SUPTYPE_FLAG_COMPRESS 0x0100
418 #define NI_FQDN_FLAG_VALIDTTL 0x0100
421 #ifdef NAME_LOOKUPS_04
422 #if BYTE_ORDER == BIG_ENDIAN
423 #define NI_NODEADDR_FLAG_LINKLOCAL 0x1
424 #define NI_NODEADDR_FLAG_SITELOCAL 0x2
425 #define NI_NODEADDR_FLAG_GLOBAL 0x4
426 #define NI_NODEADDR_FLAG_ALL 0x8
427 #define NI_NODEADDR_FLAG_TRUNCATE 0x10
428 #define NI_NODEADDR_FLAG_ANYCAST 0x20 /* just experimental. not in spec */
429 #elif BYTE_ORDER == LITTLE_ENDIAN
430 #define NI_NODEADDR_FLAG_LINKLOCAL 0x0100
431 #define NI_NODEADDR_FLAG_SITELOCAL 0x0200
432 #define NI_NODEADDR_FLAG_GLOBAL 0x0400
433 #define NI_NODEADDR_FLAG_ALL 0x0800
434 #define NI_NODEADDR_FLAG_TRUNCATE 0x1000
435 #define NI_NODEADDR_FLAG_ANYCAST 0x2000 /* just experimental. not in spec */
437 #else /* draft-ietf-ipngwg-icmp-name-lookups-05 (and later?) */
438 #if BYTE_ORDER == BIG_ENDIAN
439 #define NI_NODEADDR_FLAG_TRUNCATE 0x1
440 #define NI_NODEADDR_FLAG_ALL 0x2
441 #define NI_NODEADDR_FLAG_COMPAT 0x4
442 #define NI_NODEADDR_FLAG_LINKLOCAL 0x8
443 #define NI_NODEADDR_FLAG_SITELOCAL 0x10
444 #define NI_NODEADDR_FLAG_GLOBAL 0x20
445 #define NI_NODEADDR_FLAG_ANYCAST 0x40 /* just experimental. not in spec */
446 #elif BYTE_ORDER == LITTLE_ENDIAN
447 #define NI_NODEADDR_FLAG_TRUNCATE 0x0100
448 #define NI_NODEADDR_FLAG_ALL 0x0200
449 #define NI_NODEADDR_FLAG_COMPAT 0x0400
450 #define NI_NODEADDR_FLAG_LINKLOCAL 0x0800
451 #define NI_NODEADDR_FLAG_SITELOCAL 0x1000
452 #define NI_NODEADDR_FLAG_GLOBAL 0x2000
453 #define NI_NODEADDR_FLAG_ANYCAST 0x4000 /* just experimental. not in spec */
457 struct ni_reply_fqdn {
458 u_int32_t ni_fqdn_ttl; /* TTL */
459 u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */
460 u_int8_t ni_fqdn_name[3]; /* XXX: alignment */
464 * Router Renumbering. as router-renum-08.txt
466 struct icmp6_router_renum { /* router renumbering header */
467 struct icmp6_hdr rr_hdr;
470 u_int16_t rr_maxdelay;
471 u_int32_t rr_reserved;
474 #define ICMP6_RR_FLAGS_TEST 0x80
475 #define ICMP6_RR_FLAGS_REQRESULT 0x40
476 #define ICMP6_RR_FLAGS_FORCEAPPLY 0x20
477 #define ICMP6_RR_FLAGS_SPECSITE 0x10
478 #define ICMP6_RR_FLAGS_PREVDONE 0x08
480 #define rr_type rr_hdr.icmp6_type
481 #define rr_code rr_hdr.icmp6_code
482 #define rr_cksum rr_hdr.icmp6_cksum
483 #define rr_seqnum rr_hdr.icmp6_data32[0]
485 struct rr_pco_match { /* match prefix part */
488 u_int8_t rpm_ordinal;
489 u_int8_t rpm_matchlen;
492 u_int16_t rpm_reserved;
493 struct in6_addr rpm_prefix;
496 #define RPM_PCO_ADD 1
497 #define RPM_PCO_CHANGE 2
498 #define RPM_PCO_SETGLOBAL 3
499 #define RPM_PCO_MAX 4
501 struct rr_pco_use { /* use prefix part */
503 u_int8_t rpu_keeplen;
505 u_int8_t rpu_raflags;
506 u_int32_t rpu_vltime;
507 u_int32_t rpu_pltime;
509 struct in6_addr rpu_prefix;
511 #define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK 0x80
512 #define ICMP6_RR_PCOUSE_RAFLAGS_AUTO 0x40
514 #if BYTE_ORDER == BIG_ENDIAN
515 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000
516 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000
517 #elif BYTE_ORDER == LITTLE_ENDIAN
518 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80
519 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40
522 struct rr_result { /* router renumbering result message */
524 u_int8_t rrr_ordinal;
525 u_int8_t rrr_matchedlen;
527 struct in6_addr rrr_prefix;
529 #if BYTE_ORDER == BIG_ENDIAN
530 #define ICMP6_RR_RESULT_FLAGS_OOB 0x0002
531 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001
532 #elif BYTE_ORDER == LITTLE_ENDIAN
533 #define ICMP6_RR_RESULT_FLAGS_OOB 0x0200
534 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0100
538 * icmp6 filter structures.
541 struct icmp6_filter {
542 u_int32_t icmp6_filt[8];
546 #define ICMP6_FILTER_SETPASSALL(filterp) \
549 p = (u_char *)filterp; \
550 for (i = 0; i < sizeof(struct icmp6_filter); i++) \
552 } while (/*CONSTCOND*/ 0)
553 #define ICMP6_FILTER_SETBLOCKALL(filterp) \
554 bzero(filterp, sizeof(struct icmp6_filter))
556 #define ICMP6_FILTER_SETPASSALL(filterp) \
557 memset(filterp, 0xff, sizeof(struct icmp6_filter))
558 #define ICMP6_FILTER_SETBLOCKALL(filterp) \
559 memset(filterp, 0x00, sizeof(struct icmp6_filter))
562 #define ICMP6_FILTER_SETPASS(type, filterp) \
563 (((filterp)->icmp6_filt[(type) >> 5]) |= (1 << ((type) & 31)))
564 #define ICMP6_FILTER_SETBLOCK(type, filterp) \
565 (((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31)))
566 #define ICMP6_FILTER_WILLPASS(type, filterp) \
567 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0)
568 #define ICMP6_FILTER_WILLBLOCK(type, filterp) \
569 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0)
572 * Variables related to this implementation
573 * of the internet control message protocol version 6.
575 struct icmp6errstat {
576 uint64_t icp6errs_dst_unreach_noroute;
577 uint64_t icp6errs_dst_unreach_admin;
578 uint64_t icp6errs_dst_unreach_beyondscope;
579 uint64_t icp6errs_dst_unreach_addr;
580 uint64_t icp6errs_dst_unreach_noport;
581 uint64_t icp6errs_packet_too_big;
582 uint64_t icp6errs_time_exceed_transit;
583 uint64_t icp6errs_time_exceed_reassembly;
584 uint64_t icp6errs_paramprob_header;
585 uint64_t icp6errs_paramprob_nextheader;
586 uint64_t icp6errs_paramprob_option;
587 uint64_t icp6errs_redirect; /* we regard redirect as an error here */
588 uint64_t icp6errs_unknown;
592 /* statistics related to icmp6 packets generated */
593 uint64_t icp6s_error; /* # of calls to icmp6_error */
594 uint64_t icp6s_canterror; /* no error 'cuz old was icmp */
595 uint64_t icp6s_toofreq; /* no error 'cuz rate limitation */
596 uint64_t icp6s_outhist[256];
597 /* statistics related to input message processed */
598 uint64_t icp6s_badcode; /* icmp6_code out of range */
599 uint64_t icp6s_tooshort; /* packet < sizeof(struct icmp6_hdr) */
600 uint64_t icp6s_checksum; /* bad checksum */
601 uint64_t icp6s_badlen; /* calculated bound mismatch */
602 uint64_t icp6s_dropped; /* # of packets dropped waiting for a resolution */
604 * number of responses: this member is inherited from netinet code, but
605 * for netinet6 code, it is already available in icp6s_outhist[].
607 uint64_t icp6s_reflect;
608 uint64_t icp6s_inhist[256];
609 uint64_t icp6s_nd_toomanyopt; /* too many ND options */
610 struct icmp6errstat icp6s_outerrhist;
611 #define icp6s_odst_unreach_noroute \
612 icp6s_outerrhist.icp6errs_dst_unreach_noroute
613 #define icp6s_odst_unreach_admin icp6s_outerrhist.icp6errs_dst_unreach_admin
614 #define icp6s_odst_unreach_beyondscope \
615 icp6s_outerrhist.icp6errs_dst_unreach_beyondscope
616 #define icp6s_odst_unreach_addr icp6s_outerrhist.icp6errs_dst_unreach_addr
617 #define icp6s_odst_unreach_noport icp6s_outerrhist.icp6errs_dst_unreach_noport
618 #define icp6s_opacket_too_big icp6s_outerrhist.icp6errs_packet_too_big
619 #define icp6s_otime_exceed_transit \
620 icp6s_outerrhist.icp6errs_time_exceed_transit
621 #define icp6s_otime_exceed_reassembly \
622 icp6s_outerrhist.icp6errs_time_exceed_reassembly
623 #define icp6s_oparamprob_header icp6s_outerrhist.icp6errs_paramprob_header
624 #define icp6s_oparamprob_nextheader \
625 icp6s_outerrhist.icp6errs_paramprob_nextheader
626 #define icp6s_oparamprob_option icp6s_outerrhist.icp6errs_paramprob_option
627 #define icp6s_oredirect icp6s_outerrhist.icp6errs_redirect
628 #define icp6s_ounknown icp6s_outerrhist.icp6errs_unknown
629 uint64_t icp6s_pmtuchg; /* path MTU changes */
630 uint64_t icp6s_nd_badopt; /* bad ND options */
631 uint64_t icp6s_badns; /* bad neighbor solicitation */
632 uint64_t icp6s_badna; /* bad neighbor advertisement */
633 uint64_t icp6s_badrs; /* bad router solicitation */
634 uint64_t icp6s_badra; /* bad router advertisement */
635 uint64_t icp6s_badredirect; /* bad redirect message */
636 uint64_t icp6s_overflowdefrtr; /* Too many default routers. */
637 uint64_t icp6s_overflowprfx; /* Too many prefixes. */
638 uint64_t icp6s_overflownndp; /* Too many neighbour entries. */
639 uint64_t icp6s_overflowredirect;/* Too many redirects. */
640 uint64_t icp6s_invlhlim; /* Invalid hop limit. */
641 uint64_t icp6s_spare[32];
645 #include <sys/counter.h>
647 VNET_PCPUSTAT_DECLARE(struct icmp6stat, icmp6stat);
649 * In-kernel consumers can use these accessor macros directly to update
652 #define ICMP6STAT_ADD(name, val) \
653 VNET_PCPUSTAT_ADD(struct icmp6stat, icmp6stat, name, (val))
654 #define ICMP6STAT_INC(name) ICMP6STAT_ADD(name, 1)
657 * Kernel module consumers must use this accessor macro.
659 void kmod_icmp6stat_inc(int statnum);
660 #define KMOD_ICMP6STAT_INC(name) \
661 kmod_icmp6stat_inc(offsetof(struct icmp6stat, name) / sizeof(uint64_t))
665 * Names for ICMP sysctl objects
667 #define ICMPV6CTL_STATS 1
668 #define ICMPV6CTL_REDIRACCEPT 2 /* accept/process redirects */
669 #define ICMPV6CTL_REDIRTIMEOUT 3 /* redirect cache time */
671 #define ICMPV6CTL_ERRRATELIMIT 5 /* ICMPv6 error rate limitation */
673 #define ICMPV6CTL_ND6_PRUNE 6
674 #define ICMPV6CTL_ND6_DELAY 8
675 #define ICMPV6CTL_ND6_UMAXTRIES 9
676 #define ICMPV6CTL_ND6_MMAXTRIES 10
677 #define ICMPV6CTL_ND6_USELOOPBACK 11
678 /*#define ICMPV6CTL_ND6_PROXYALL 12 obsoleted, do not reuse here */
679 #define ICMPV6CTL_NODEINFO 13
680 #define ICMPV6CTL_ERRPPSLIMIT 14 /* ICMPv6 error pps limitation */
681 #define ICMPV6CTL_ND6_MAXNUDHINT 15
682 #define ICMPV6CTL_MTUDISC_HIWAT 16
683 #define ICMPV6CTL_MTUDISC_LOWAT 17
684 #define ICMPV6CTL_ND6_DEBUG 18
685 #define ICMPV6CTL_ND6_DRLIST 19
686 #define ICMPV6CTL_ND6_PRLIST 20
687 #define ICMPV6CTL_MLD_MAXSRCFILTER 21
688 #define ICMPV6CTL_MLD_SOMAXSRC 22
689 #define ICMPV6CTL_MLD_VERSION 23
690 #define ICMPV6CTL_ND6_MAXQLEN 24
691 #define ICMPV6CTL_NODEINFO_OLDMCPREFIX 25
692 #define ICMPV6CTL_MAXID 26
700 void icmp6_paramerror(struct mbuf *, int);
701 int icmp6_errmap(const struct icmp6_hdr *);
702 void icmp6_error(struct mbuf *, int, int, int);
703 void icmp6_error2(struct mbuf *, int, int, int, struct ifnet *);
704 int icmp6_input(struct mbuf **, int *, int);
705 void icmp6_prepare(struct mbuf *);
706 void icmp6_redirect_input(struct mbuf *, int);
707 void icmp6_redirect_output(struct mbuf *, struct nhop_object *);
708 int icmp6_ratelimit(const struct in6_addr *, const int, const int);
711 void icmp6_mtudisc_update(struct ip6ctlparam *, int);
713 /* XXX: is this the right place for these macros? */
714 #define icmp6_ifstat_inc(ifp, tag) \
717 counter_u64_add(((struct in6_ifextra *) \
718 ((ifp)->if_afdata[AF_INET6]))->icmp6_ifstat[\
719 offsetof(struct icmp6_ifstat, tag) / sizeof(uint64_t)], 1);\
720 } while (/*CONSTCOND*/ 0)
722 #define icmp6_ifoutstat_inc(ifp, type, code) \
724 icmp6_ifstat_inc(ifp, ifs6_out_msg); \
725 if (type < ICMP6_INFOMSG_MASK) \
726 icmp6_ifstat_inc(ifp, ifs6_out_error); \
728 case ICMP6_DST_UNREACH: \
729 icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \
730 if (code == ICMP6_DST_UNREACH_ADMIN) \
731 icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \
733 case ICMP6_PACKET_TOO_BIG: \
734 icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \
736 case ICMP6_TIME_EXCEEDED: \
737 icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \
739 case ICMP6_PARAM_PROB: \
740 icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \
742 case ICMP6_ECHO_REQUEST: \
743 icmp6_ifstat_inc(ifp, ifs6_out_echo); \
745 case ICMP6_ECHO_REPLY: \
746 icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \
748 case MLD_LISTENER_QUERY: \
749 icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \
751 case MLD_LISTENER_REPORT: \
752 icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \
754 case MLD_LISTENER_DONE: \
755 icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \
757 case ND_ROUTER_SOLICIT: \
758 icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \
760 case ND_ROUTER_ADVERT: \
761 icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \
763 case ND_NEIGHBOR_SOLICIT: \
764 icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \
766 case ND_NEIGHBOR_ADVERT: \
767 icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \
770 icmp6_ifstat_inc(ifp, ifs6_out_redirect); \
773 } while (/*CONSTCOND*/ 0)
775 VNET_DECLARE(int, icmp6_rediraccept); /* accept/process redirects */
776 VNET_DECLARE(int, icmp6_redirtimeout); /* cache time for redirect routes */
778 #define V_icmp6_rediraccept VNET(icmp6_rediraccept)
779 #define V_icmp6_redirtimeout VNET(icmp6_redirtimeout)
781 #define ICMP6_NODEINFO_FQDNOK 0x1
782 #define ICMP6_NODEINFO_NODEADDROK 0x2
783 #define ICMP6_NODEINFO_TMPADDROK 0x4
784 #define ICMP6_NODEINFO_GLOBALOK 0x8
787 #endif /* not _NETINET_ICMP6_H_ */