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 */
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 */
147 #define ICMP6_TIME_EXCEED_TRANSIT 0 /* ttl==0 in transit */
148 #define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* ttl==0 in reass */
150 #define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */
151 #define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized next header */
152 #define ICMP6_PARAMPROB_OPTION 2 /* unrecognized option */
154 #define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */
156 #define ICMP6_NI_SUBJ_IPV6 0 /* Query Subject is an IPv6 address */
157 #define ICMP6_NI_SUBJ_FQDN 1 /* Query Subject is a Domain name */
158 #define ICMP6_NI_SUBJ_IPV4 2 /* Query Subject is an IPv4 address */
160 #define ICMP6_NI_SUCCESS 0 /* node information successful reply */
161 #define ICMP6_NI_REFUSED 1 /* node information request is refused */
162 #define ICMP6_NI_UNKNOWN 2 /* unknown Qtype */
164 #define ICMP6_ROUTER_RENUMBERING_COMMAND 0 /* rr command */
165 #define ICMP6_ROUTER_RENUMBERING_RESULT 1 /* rr result */
166 #define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 /* rr seq num reset */
168 /* Used in kernel only */
169 #define ND_REDIRECT_ONLINK 0 /* redirect to an on-link node */
170 #define ND_REDIRECT_ROUTER 1 /* redirect to a better router */
173 * Multicast Listener Discovery
176 struct icmp6_hdr mld_icmp6_hdr;
177 struct in6_addr mld_addr; /* multicast address */
180 /* definitions to provide backward compatibility to old KAME applications */
182 #define mld6_hdr mld_hdr
183 #define mld6_type mld_type
184 #define mld6_code mld_code
185 #define mld6_cksum mld_cksum
186 #define mld6_maxdelay mld_maxdelay
187 #define mld6_reserved mld_reserved
188 #define mld6_addr mld_addr
191 /* shortcut macro definitions */
192 #define mld_type mld_icmp6_hdr.icmp6_type
193 #define mld_code mld_icmp6_hdr.icmp6_code
194 #define mld_cksum mld_icmp6_hdr.icmp6_cksum
195 #define mld_maxdelay mld_icmp6_hdr.icmp6_data16[0]
196 #define mld_reserved mld_icmp6_hdr.icmp6_data16[1]
202 struct nd_router_solicit { /* router solicitation */
203 struct icmp6_hdr nd_rs_hdr;
204 /* could be followed by options */
207 #define nd_rs_type nd_rs_hdr.icmp6_type
208 #define nd_rs_code nd_rs_hdr.icmp6_code
209 #define nd_rs_cksum nd_rs_hdr.icmp6_cksum
210 #define nd_rs_reserved nd_rs_hdr.icmp6_data32[0]
212 struct nd_router_advert { /* router advertisement */
213 struct icmp6_hdr nd_ra_hdr;
214 u_int32_t nd_ra_reachable; /* reachable time */
215 u_int32_t nd_ra_retransmit; /* retransmit timer */
216 /* could be followed by options */
219 #define nd_ra_type nd_ra_hdr.icmp6_type
220 #define nd_ra_code nd_ra_hdr.icmp6_code
221 #define nd_ra_cksum nd_ra_hdr.icmp6_cksum
222 #define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0]
223 #define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1]
224 #define ND_RA_FLAG_MANAGED 0x80
225 #define ND_RA_FLAG_OTHER 0x40
226 #define ND_RA_FLAG_HA 0x20
229 * Router preference values based on draft-draves-ipngwg-router-selection-01.
230 * These are non-standard definitions.
232 #define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */
234 #define ND_RA_FLAG_RTPREF_HIGH 0x08 /* 00001000 */
235 #define ND_RA_FLAG_RTPREF_MEDIUM 0x00 /* 00000000 */
236 #define ND_RA_FLAG_RTPREF_LOW 0x18 /* 00011000 */
237 #define ND_RA_FLAG_RTPREF_RSV 0x10 /* 00010000 */
239 #define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1]
241 struct nd_neighbor_solicit { /* neighbor solicitation */
242 struct icmp6_hdr nd_ns_hdr;
243 struct in6_addr nd_ns_target; /*target address */
244 /* could be followed by options */
247 #define nd_ns_type nd_ns_hdr.icmp6_type
248 #define nd_ns_code nd_ns_hdr.icmp6_code
249 #define nd_ns_cksum nd_ns_hdr.icmp6_cksum
250 #define nd_ns_reserved nd_ns_hdr.icmp6_data32[0]
252 struct nd_neighbor_advert { /* neighbor advertisement */
253 struct icmp6_hdr nd_na_hdr;
254 struct in6_addr nd_na_target; /* target address */
255 /* could be followed by options */
258 #define nd_na_type nd_na_hdr.icmp6_type
259 #define nd_na_code nd_na_hdr.icmp6_code
260 #define nd_na_cksum nd_na_hdr.icmp6_cksum
261 #define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0]
262 #if BYTE_ORDER == BIG_ENDIAN
263 #define ND_NA_FLAG_ROUTER 0x80000000
264 #define ND_NA_FLAG_SOLICITED 0x40000000
265 #define ND_NA_FLAG_OVERRIDE 0x20000000
267 #if BYTE_ORDER == LITTLE_ENDIAN
268 #define ND_NA_FLAG_ROUTER 0x80
269 #define ND_NA_FLAG_SOLICITED 0x40
270 #define ND_NA_FLAG_OVERRIDE 0x20
274 struct nd_redirect { /* redirect */
275 struct icmp6_hdr nd_rd_hdr;
276 struct in6_addr nd_rd_target; /* target address */
277 struct in6_addr nd_rd_dst; /* destination address */
278 /* could be followed by options */
281 #define nd_rd_type nd_rd_hdr.icmp6_type
282 #define nd_rd_code nd_rd_hdr.icmp6_code
283 #define nd_rd_cksum nd_rd_hdr.icmp6_cksum
284 #define nd_rd_reserved nd_rd_hdr.icmp6_data32[0]
286 struct nd_opt_hdr { /* Neighbor discovery option header */
287 u_int8_t nd_opt_type;
289 /* followed by option specific data*/
292 #define ND_OPT_SOURCE_LINKADDR 1
293 #define ND_OPT_TARGET_LINKADDR 2
294 #define ND_OPT_PREFIX_INFORMATION 3
295 #define ND_OPT_REDIRECTED_HEADER 4
298 #define ND_OPT_ROUTE_INFO 200 /* draft-ietf-ipngwg-router-preference, not officially assigned yet */
300 struct nd_opt_prefix_info { /* prefix information */
301 u_int8_t nd_opt_pi_type;
302 u_int8_t nd_opt_pi_len;
303 u_int8_t nd_opt_pi_prefix_len;
304 u_int8_t nd_opt_pi_flags_reserved;
305 u_int32_t nd_opt_pi_valid_time;
306 u_int32_t nd_opt_pi_preferred_time;
307 u_int32_t nd_opt_pi_reserved2;
308 struct in6_addr nd_opt_pi_prefix;
311 #define ND_OPT_PI_FLAG_ONLINK 0x80
312 #define ND_OPT_PI_FLAG_AUTO 0x40
314 struct nd_opt_rd_hdr { /* redirected header */
315 u_int8_t nd_opt_rh_type;
316 u_int8_t nd_opt_rh_len;
317 u_int16_t nd_opt_rh_reserved1;
318 u_int32_t nd_opt_rh_reserved2;
319 /* followed by IP header and data */
322 struct nd_opt_mtu { /* MTU option */
323 u_int8_t nd_opt_mtu_type;
324 u_int8_t nd_opt_mtu_len;
325 u_int16_t nd_opt_mtu_reserved;
326 u_int32_t nd_opt_mtu_mtu;
329 struct nd_opt_route_info { /* route info */
330 u_int8_t nd_opt_rti_type;
331 u_int8_t nd_opt_rti_len;
332 u_int8_t nd_opt_rti_prefixlen;
333 u_int8_t nd_opt_rti_flags;
334 u_int32_t nd_opt_rti_lifetime;
342 struct icmp6_namelookup {
343 struct icmp6_hdr icmp6_nl_hdr;
344 u_int8_t icmp6_nl_nonce[8];
345 int32_t icmp6_nl_ttl;
347 u_int8_t icmp6_nl_len;
348 u_int8_t icmp6_nl_name[3];
350 /* could be followed by options */
354 * icmp6 node information
356 struct icmp6_nodeinfo {
357 struct icmp6_hdr icmp6_ni_hdr;
358 u_int8_t icmp6_ni_nonce[8];
359 /* could be followed by reply data */
362 #define ni_type icmp6_ni_hdr.icmp6_type
363 #define ni_code icmp6_ni_hdr.icmp6_code
364 #define ni_cksum icmp6_ni_hdr.icmp6_cksum
365 #define ni_qtype icmp6_ni_hdr.icmp6_data16[0]
366 #define ni_flags icmp6_ni_hdr.icmp6_data16[1]
368 #define NI_QTYPE_NOOP 0 /* NOOP */
369 #define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes */
370 #define NI_QTYPE_FQDN 2 /* FQDN (draft 04) */
371 #define NI_QTYPE_DNSNAME 2 /* DNS Name */
372 #define NI_QTYPE_NODEADDR 3 /* Node Addresses */
373 #define NI_QTYPE_IPV4ADDR 4 /* IPv4 Addresses */
375 #if BYTE_ORDER == BIG_ENDIAN
376 #define NI_SUPTYPE_FLAG_COMPRESS 0x1
377 #define NI_FQDN_FLAG_VALIDTTL 0x1
378 #elif BYTE_ORDER == LITTLE_ENDIAN
379 #define NI_SUPTYPE_FLAG_COMPRESS 0x0100
380 #define NI_FQDN_FLAG_VALIDTTL 0x0100
383 #ifdef NAME_LOOKUPS_04
384 #if BYTE_ORDER == BIG_ENDIAN
385 #define NI_NODEADDR_FLAG_LINKLOCAL 0x1
386 #define NI_NODEADDR_FLAG_SITELOCAL 0x2
387 #define NI_NODEADDR_FLAG_GLOBAL 0x4
388 #define NI_NODEADDR_FLAG_ALL 0x8
389 #define NI_NODEADDR_FLAG_TRUNCATE 0x10
390 #define NI_NODEADDR_FLAG_ANYCAST 0x20 /* just experimental. not in spec */
391 #elif BYTE_ORDER == LITTLE_ENDIAN
392 #define NI_NODEADDR_FLAG_LINKLOCAL 0x0100
393 #define NI_NODEADDR_FLAG_SITELOCAL 0x0200
394 #define NI_NODEADDR_FLAG_GLOBAL 0x0400
395 #define NI_NODEADDR_FLAG_ALL 0x0800
396 #define NI_NODEADDR_FLAG_TRUNCATE 0x1000
397 #define NI_NODEADDR_FLAG_ANYCAST 0x2000 /* just experimental. not in spec */
399 #else /* draft-ietf-ipngwg-icmp-name-lookups-05 (and later?) */
400 #if BYTE_ORDER == BIG_ENDIAN
401 #define NI_NODEADDR_FLAG_TRUNCATE 0x1
402 #define NI_NODEADDR_FLAG_ALL 0x2
403 #define NI_NODEADDR_FLAG_COMPAT 0x4
404 #define NI_NODEADDR_FLAG_LINKLOCAL 0x8
405 #define NI_NODEADDR_FLAG_SITELOCAL 0x10
406 #define NI_NODEADDR_FLAG_GLOBAL 0x20
407 #define NI_NODEADDR_FLAG_ANYCAST 0x40 /* just experimental. not in spec */
408 #elif BYTE_ORDER == LITTLE_ENDIAN
409 #define NI_NODEADDR_FLAG_TRUNCATE 0x0100
410 #define NI_NODEADDR_FLAG_ALL 0x0200
411 #define NI_NODEADDR_FLAG_COMPAT 0x0400
412 #define NI_NODEADDR_FLAG_LINKLOCAL 0x0800
413 #define NI_NODEADDR_FLAG_SITELOCAL 0x1000
414 #define NI_NODEADDR_FLAG_GLOBAL 0x2000
415 #define NI_NODEADDR_FLAG_ANYCAST 0x4000 /* just experimental. not in spec */
419 struct ni_reply_fqdn {
420 u_int32_t ni_fqdn_ttl; /* TTL */
421 u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */
422 u_int8_t ni_fqdn_name[3]; /* XXX: alignment */
426 * Router Renumbering. as router-renum-08.txt
428 struct icmp6_router_renum { /* router renumbering header */
429 struct icmp6_hdr rr_hdr;
432 u_int16_t rr_maxdelay;
433 u_int32_t rr_reserved;
436 #define ICMP6_RR_FLAGS_TEST 0x80
437 #define ICMP6_RR_FLAGS_REQRESULT 0x40
438 #define ICMP6_RR_FLAGS_FORCEAPPLY 0x20
439 #define ICMP6_RR_FLAGS_SPECSITE 0x10
440 #define ICMP6_RR_FLAGS_PREVDONE 0x08
442 #define rr_type rr_hdr.icmp6_type
443 #define rr_code rr_hdr.icmp6_code
444 #define rr_cksum rr_hdr.icmp6_cksum
445 #define rr_seqnum rr_hdr.icmp6_data32[0]
447 struct rr_pco_match { /* match prefix part */
450 u_int8_t rpm_ordinal;
451 u_int8_t rpm_matchlen;
454 u_int16_t rpm_reserved;
455 struct in6_addr rpm_prefix;
458 #define RPM_PCO_ADD 1
459 #define RPM_PCO_CHANGE 2
460 #define RPM_PCO_SETGLOBAL 3
461 #define RPM_PCO_MAX 4
463 struct rr_pco_use { /* use prefix part */
465 u_int8_t rpu_keeplen;
467 u_int8_t rpu_raflags;
468 u_int32_t rpu_vltime;
469 u_int32_t rpu_pltime;
471 struct in6_addr rpu_prefix;
473 #define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK 0x80
474 #define ICMP6_RR_PCOUSE_RAFLAGS_AUTO 0x40
476 #if BYTE_ORDER == BIG_ENDIAN
477 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000
478 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000
479 #elif BYTE_ORDER == LITTLE_ENDIAN
480 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80
481 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40
484 struct rr_result { /* router renumbering result message */
486 u_int8_t rrr_ordinal;
487 u_int8_t rrr_matchedlen;
489 struct in6_addr rrr_prefix;
491 #if BYTE_ORDER == BIG_ENDIAN
492 #define ICMP6_RR_RESULT_FLAGS_OOB 0x0002
493 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001
494 #elif BYTE_ORDER == LITTLE_ENDIAN
495 #define ICMP6_RR_RESULT_FLAGS_OOB 0x0200
496 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0100
500 * icmp6 filter structures.
503 struct icmp6_filter {
504 u_int32_t icmp6_filt[8];
508 #define ICMP6_FILTER_SETPASSALL(filterp) \
511 p = (u_char *)filterp; \
512 for (i = 0; i < sizeof(struct icmp6_filter); i++) \
514 } while (/*CONSTCOND*/ 0)
515 #define ICMP6_FILTER_SETBLOCKALL(filterp) \
516 bzero(filterp, sizeof(struct icmp6_filter))
518 #define ICMP6_FILTER_SETPASSALL(filterp) \
519 memset(filterp, 0xff, sizeof(struct icmp6_filter))
520 #define ICMP6_FILTER_SETBLOCKALL(filterp) \
521 memset(filterp, 0x00, sizeof(struct icmp6_filter))
524 #define ICMP6_FILTER_SETPASS(type, filterp) \
525 (((filterp)->icmp6_filt[(type) >> 5]) |= (1 << ((type) & 31)))
526 #define ICMP6_FILTER_SETBLOCK(type, filterp) \
527 (((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31)))
528 #define ICMP6_FILTER_WILLPASS(type, filterp) \
529 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0)
530 #define ICMP6_FILTER_WILLBLOCK(type, filterp) \
531 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0)
534 * Variables related to this implementation
535 * of the internet control message protocol version 6.
537 struct icmp6errstat {
538 u_quad_t icp6errs_dst_unreach_noroute;
539 u_quad_t icp6errs_dst_unreach_admin;
540 u_quad_t icp6errs_dst_unreach_beyondscope;
541 u_quad_t icp6errs_dst_unreach_addr;
542 u_quad_t icp6errs_dst_unreach_noport;
543 u_quad_t icp6errs_packet_too_big;
544 u_quad_t icp6errs_time_exceed_transit;
545 u_quad_t icp6errs_time_exceed_reassembly;
546 u_quad_t icp6errs_paramprob_header;
547 u_quad_t icp6errs_paramprob_nextheader;
548 u_quad_t icp6errs_paramprob_option;
549 u_quad_t icp6errs_redirect; /* we regard redirect as an error here */
550 u_quad_t icp6errs_unknown;
554 /* statistics related to icmp6 packets generated */
555 u_quad_t icp6s_error; /* # of calls to icmp6_error */
556 u_quad_t icp6s_canterror; /* no error 'cuz old was icmp */
557 u_quad_t icp6s_toofreq; /* no error 'cuz rate limitation */
558 u_quad_t icp6s_outhist[256];
559 /* statistics related to input message processed */
560 u_quad_t icp6s_badcode; /* icmp6_code out of range */
561 u_quad_t icp6s_tooshort; /* packet < sizeof(struct icmp6_hdr) */
562 u_quad_t icp6s_checksum; /* bad checksum */
563 u_quad_t icp6s_badlen; /* calculated bound mismatch */
565 * number of responses: this member is inherited from netinet code, but
566 * for netinet6 code, it is already available in icp6s_outhist[].
568 u_quad_t icp6s_reflect;
569 u_quad_t icp6s_inhist[256];
570 u_quad_t icp6s_nd_toomanyopt; /* too many ND options */
571 struct icmp6errstat icp6s_outerrhist;
572 #define icp6s_odst_unreach_noroute \
573 icp6s_outerrhist.icp6errs_dst_unreach_noroute
574 #define icp6s_odst_unreach_admin icp6s_outerrhist.icp6errs_dst_unreach_admin
575 #define icp6s_odst_unreach_beyondscope \
576 icp6s_outerrhist.icp6errs_dst_unreach_beyondscope
577 #define icp6s_odst_unreach_addr icp6s_outerrhist.icp6errs_dst_unreach_addr
578 #define icp6s_odst_unreach_noport icp6s_outerrhist.icp6errs_dst_unreach_noport
579 #define icp6s_opacket_too_big icp6s_outerrhist.icp6errs_packet_too_big
580 #define icp6s_otime_exceed_transit \
581 icp6s_outerrhist.icp6errs_time_exceed_transit
582 #define icp6s_otime_exceed_reassembly \
583 icp6s_outerrhist.icp6errs_time_exceed_reassembly
584 #define icp6s_oparamprob_header icp6s_outerrhist.icp6errs_paramprob_header
585 #define icp6s_oparamprob_nextheader \
586 icp6s_outerrhist.icp6errs_paramprob_nextheader
587 #define icp6s_oparamprob_option icp6s_outerrhist.icp6errs_paramprob_option
588 #define icp6s_oredirect icp6s_outerrhist.icp6errs_redirect
589 #define icp6s_ounknown icp6s_outerrhist.icp6errs_unknown
590 u_quad_t icp6s_pmtuchg; /* path MTU changes */
591 u_quad_t icp6s_nd_badopt; /* bad ND options */
592 u_quad_t icp6s_badns; /* bad neighbor solicitation */
593 u_quad_t icp6s_badna; /* bad neighbor advertisement */
594 u_quad_t icp6s_badrs; /* bad router advertisement */
595 u_quad_t icp6s_badra; /* bad router advertisement */
596 u_quad_t icp6s_badredirect; /* bad redirect message */
600 * Names for ICMP sysctl objects
602 #define ICMPV6CTL_STATS 1
603 #define ICMPV6CTL_REDIRACCEPT 2 /* accept/process redirects */
604 #define ICMPV6CTL_REDIRTIMEOUT 3 /* redirect cache time */
606 #define ICMPV6CTL_ERRRATELIMIT 5 /* ICMPv6 error rate limitation */
608 #define ICMPV6CTL_ND6_PRUNE 6
609 #define ICMPV6CTL_ND6_DELAY 8
610 #define ICMPV6CTL_ND6_UMAXTRIES 9
611 #define ICMPV6CTL_ND6_MMAXTRIES 10
612 #define ICMPV6CTL_ND6_USELOOPBACK 11
613 /*#define ICMPV6CTL_ND6_PROXYALL 12 obsoleted, do not reuse here */
614 #define ICMPV6CTL_NODEINFO 13
615 #define ICMPV6CTL_ERRPPSLIMIT 14 /* ICMPv6 error pps limitation */
616 #define ICMPV6CTL_ND6_MAXNUDHINT 15
617 #define ICMPV6CTL_MTUDISC_HIWAT 16
618 #define ICMPV6CTL_MTUDISC_LOWAT 17
619 #define ICMPV6CTL_ND6_DEBUG 18
620 #define ICMPV6CTL_ND6_DRLIST 19
621 #define ICMPV6CTL_ND6_PRLIST 20
622 #define ICMPV6CTL_MLD_MAXSRCFILTER 21
623 #define ICMPV6CTL_MLD_SOMAXSRC 22
624 #define ICMPV6CTL_MLD_VERSION 23
625 #define ICMPV6CTL_ND6_MAXQLEN 24
626 #define ICMPV6CTL_MAXID 25
628 #define RTF_PROBEMTU RTF_PROTO1
636 void icmp6_init(void);
637 void icmp6_paramerror(struct mbuf *, int);
638 void icmp6_error(struct mbuf *, int, int, int);
639 void icmp6_error2(struct mbuf *, int, int, int, struct ifnet *);
640 int icmp6_input(struct mbuf **, int *, int);
641 void icmp6_fasttimo(void);
642 void icmp6_reflect(struct mbuf *, size_t);
643 void icmp6_prepare(struct mbuf *);
644 void icmp6_redirect_input(struct mbuf *, int);
645 void icmp6_redirect_output(struct mbuf *, struct rtentry *);
648 void icmp6_mtudisc_update(struct ip6ctlparam *, int);
650 /* XXX: is this the right place for these macros? */
651 #define icmp6_ifstat_inc(ifp, tag) \
654 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->icmp6_ifstat->tag++; \
655 } while (/*CONSTCOND*/ 0)
657 #define icmp6_ifoutstat_inc(ifp, type, code) \
659 icmp6_ifstat_inc(ifp, ifs6_out_msg); \
660 if (type < ICMP6_INFOMSG_MASK) \
661 icmp6_ifstat_inc(ifp, ifs6_out_error); \
663 case ICMP6_DST_UNREACH: \
664 icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \
665 if (code == ICMP6_DST_UNREACH_ADMIN) \
666 icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \
668 case ICMP6_PACKET_TOO_BIG: \
669 icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \
671 case ICMP6_TIME_EXCEEDED: \
672 icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \
674 case ICMP6_PARAM_PROB: \
675 icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \
677 case ICMP6_ECHO_REQUEST: \
678 icmp6_ifstat_inc(ifp, ifs6_out_echo); \
680 case ICMP6_ECHO_REPLY: \
681 icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \
683 case MLD_LISTENER_QUERY: \
684 icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \
686 case MLD_LISTENER_REPORT: \
687 icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \
689 case MLD_LISTENER_DONE: \
690 icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \
692 case ND_ROUTER_SOLICIT: \
693 icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \
695 case ND_ROUTER_ADVERT: \
696 icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \
698 case ND_NEIGHBOR_SOLICIT: \
699 icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \
701 case ND_NEIGHBOR_ADVERT: \
702 icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \
705 icmp6_ifstat_inc(ifp, ifs6_out_redirect); \
708 } while (/*CONSTCOND*/ 0)
710 extern int icmp6_rediraccept; /* accept/process redirects */
711 extern int icmp6_redirtimeout; /* cache time for redirect routes */
713 #define ICMP6_NODEINFO_FQDNOK 0x1
714 #define ICMP6_NODEINFO_NODEADDROK 0x2
715 #define ICMP6_NODEINFO_TMPADDROK 0x4
716 #define ICMP6_NODEINFO_GLOBALOK 0x8
719 #endif /* not _NETINET_ICMP6_H_ */