HAMMER 60I/Many: Mirroring
[dragonfly.git] / sys / netinet / icmp6.h
blobe1dc9116f8a6140f968fdf8aff4e20042f95fc6c
1 /* $FreeBSD: src/sys/netinet/icmp6.h,v 1.2.2.5 2002/06/29 18:31:11 ume Exp $ */
2 /* $DragonFly: src/sys/netinet/icmp6.h,v 1.7 2006/05/20 02:42:12 dillon Exp $ */
3 /* $KAME: icmp6.h,v 1.46 2001/04/27 15:09:48 itojun Exp $ */
5 /*
6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
7 * All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the project nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
35 * Copyright (c) 1982, 1986, 1993
36 * The Regents of the University of California. All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. All advertising materials mentioning features or use of this software
47 * must display the following acknowledgement:
48 * This product includes software developed by the University of
49 * California, Berkeley and its contributors.
50 * 4. Neither the name of the University nor the names of its contributors
51 * may be used to endorse or promote products derived from this software
52 * without specific prior written permission.
54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
64 * SUCH DAMAGE.
66 * @(#)ip_icmp.h 8.1 (Berkeley) 6/10/93
69 #ifndef _NETINET_ICMP6_H_
70 #define _NETINET_ICMP6_H_
72 #ifndef _SYS_TYPES_H_
73 #include <sys/types.h>
74 #endif
75 #ifndef _NETINET6_IN6_H_
76 #include <netinet/in.h>
77 #endif
78 #ifndef _MACHINE_ENDIAN_H_
79 #include <machine/endian.h>
80 #endif
82 #define ICMPV6_PLD_MAXLEN 1232 /* IPV6_MMTU - sizeof(struct ip6_hdr)
83 - sizeof(struct icmp6_hdr) */
85 struct icmp6_hdr {
86 u_int8_t icmp6_type; /* type field */
87 u_int8_t icmp6_code; /* code field */
88 u_int16_t icmp6_cksum; /* checksum field */
89 union {
90 u_int32_t icmp6_un_data32[1]; /* type-specific field */
91 u_int16_t icmp6_un_data16[2]; /* type-specific field */
92 u_int8_t icmp6_un_data8[4]; /* type-specific field */
93 } icmp6_dataun;
94 } __attribute__((__packed__));
96 #define icmp6_data32 icmp6_dataun.icmp6_un_data32
97 #define icmp6_data16 icmp6_dataun.icmp6_un_data16
98 #define icmp6_data8 icmp6_dataun.icmp6_un_data8
99 #define icmp6_pptr icmp6_data32[0] /* parameter prob */
100 #define icmp6_mtu icmp6_data32[0] /* packet too big */
101 #define icmp6_id icmp6_data16[0] /* echo request/reply */
102 #define icmp6_seq icmp6_data16[1] /* echo request/reply */
103 #define icmp6_maxdelay icmp6_data16[0] /* mcast group membership */
105 #define ICMP6_DST_UNREACH 1 /* dest unreachable, codes: */
106 #define ICMP6_PACKET_TOO_BIG 2 /* packet too big */
107 #define ICMP6_TIME_EXCEEDED 3 /* time exceeded, code: */
108 #define ICMP6_PARAM_PROB 4 /* ip6 header bad */
110 #define ICMP6_ECHO_REQUEST 128 /* echo service */
111 #define ICMP6_ECHO_REPLY 129 /* echo reply */
112 #define ICMP6_MEMBERSHIP_QUERY 130 /* group membership query */
113 #define MLD_LISTENER_QUERY 130 /* multicast listener query */
114 #define ICMP6_MEMBERSHIP_REPORT 131 /* group membership report */
115 #define MLD_LISTENER_REPORT 131 /* multicast listener report */
116 #define ICMP6_MEMBERSHIP_REDUCTION 132 /* group membership termination */
117 #define MLD_LISTENER_DONE 132 /* multicast listener done */
119 #ifndef _KERNEL
120 /* the followings are for backward compatibility to old KAME apps. */
121 #define MLD6_LISTENER_QUERY MLD_LISTENER_QUERY
122 #define MLD6_LISTENER_REPORT MLD_LISTENER_REPORT
123 #define MLD6_LISTENER_DONE MLD_LISTENER_DONE
124 #endif
126 #define ND_ROUTER_SOLICIT 133 /* router solicitation */
127 #define ND_ROUTER_ADVERT 134 /* router advertisment */
128 #define ND_NEIGHBOR_SOLICIT 135 /* neighbor solicitation */
129 #define ND_NEIGHBOR_ADVERT 136 /* neighbor advertisment */
130 #define ND_REDIRECT 137 /* redirect */
132 #define ICMP6_ROUTER_RENUMBERING 138 /* router renumbering */
134 #define ICMP6_WRUREQUEST 139 /* who are you request */
135 #define ICMP6_WRUREPLY 140 /* who are you reply */
136 #define ICMP6_FQDN_QUERY 139 /* FQDN query */
137 #define ICMP6_FQDN_REPLY 140 /* FQDN reply */
138 #define ICMP6_NI_QUERY 139 /* node information request */
139 #define ICMP6_NI_REPLY 140 /* node information reply */
141 /* The definitions below are experimental. TBA */
142 #define MLD_MTRACE_RESP 200 /* mtrace resp (to sender) */
143 #define MLD_MTRACE 201 /* mtrace messages */
145 #define ICMP6_HADISCOV_REQUEST 202 /* XXX To be defined */
146 #define ICMP6_HADISCOV_REPLY 203 /* XXX To be defined */
148 #ifndef _KERNEL
149 #define MLD6_MTRACE_RESP MLD_MTRACE_RESP
150 #define MLD6_MTRACE MLD_MTRACE
151 #endif
153 #define ICMP6_MAXTYPE 203
155 #define ICMP6_DST_UNREACH_NOROUTE 0 /* no route to destination */
156 #define ICMP6_DST_UNREACH_ADMIN 1 /* administratively prohibited */
157 #define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor(obsolete) */
158 #define ICMP6_DST_UNREACH_BEYONDSCOPE 2 /* beyond scope of source address */
159 #define ICMP6_DST_UNREACH_ADDR 3 /* address unreachable */
160 #define ICMP6_DST_UNREACH_NOPORT 4 /* port unreachable */
162 #define ICMP6_TIME_EXCEED_TRANSIT 0 /* ttl==0 in transit */
163 #define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* ttl==0 in reass */
165 #define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */
166 #define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized next header */
167 #define ICMP6_PARAMPROB_OPTION 2 /* unrecognized option */
169 #define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */
171 #define ICMP6_NI_SUBJ_IPV6 0 /* Query Subject is an IPv6 address */
172 #define ICMP6_NI_SUBJ_FQDN 1 /* Query Subject is a Domain name */
173 #define ICMP6_NI_SUBJ_IPV4 2 /* Query Subject is an IPv4 address */
175 #define ICMP6_NI_SUCCESS 0 /* node information successful reply */
176 #define ICMP6_NI_REFUSED 1 /* node information request is refused */
177 #define ICMP6_NI_UNKNOWN 2 /* unknown Qtype */
179 #define ICMP6_ROUTER_RENUMBERING_COMMAND 0 /* rr command */
180 #define ICMP6_ROUTER_RENUMBERING_RESULT 1 /* rr result */
181 #define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 /* rr seq num reset */
183 /* Used in kernel only */
184 #define ND_REDIRECT_ONLINK 0 /* redirect to an on-link node */
185 #define ND_REDIRECT_ROUTER 1 /* redirect to a better router */
188 * Multicast Listener Discovery
190 struct mld_hdr {
191 struct icmp6_hdr mld_icmp6_hdr;
192 struct in6_addr mld_addr; /* multicast address */
193 } __attribute__((__packed__));
195 /* definitions to provide backward compatibility to old KAME applications */
196 #ifndef _KERNEL
197 #define mld6_hdr mld_hdr
198 #define mld6_type mld_type
199 #define mld6_code mld_code
200 #define mld6_cksum mld_cksum
201 #define mld6_maxdelay mld_maxdelay
202 #define mld6_reserved mld_reserved
203 #define mld6_addr mld_addr
204 #endif
206 /* shortcut macro definitions */
207 #define mld_type mld_icmp6_hdr.icmp6_type
208 #define mld_code mld_icmp6_hdr.icmp6_code
209 #define mld_cksum mld_icmp6_hdr.icmp6_cksum
210 #define mld_maxdelay mld_icmp6_hdr.icmp6_data16[0]
211 #define mld_reserved mld_icmp6_hdr.icmp6_data16[1]
214 * Neighbor Discovery
217 struct nd_router_solicit { /* router solicitation */
218 struct icmp6_hdr nd_rs_hdr;
219 /* could be followed by options */
220 } __attribute__((__packed__));
222 #define nd_rs_type nd_rs_hdr.icmp6_type
223 #define nd_rs_code nd_rs_hdr.icmp6_code
224 #define nd_rs_cksum nd_rs_hdr.icmp6_cksum
225 #define nd_rs_reserved nd_rs_hdr.icmp6_data32[0]
227 struct nd_router_advert { /* router advertisement */
228 struct icmp6_hdr nd_ra_hdr;
229 u_int32_t nd_ra_reachable; /* reachable time */
230 u_int32_t nd_ra_retransmit; /* retransmit timer */
231 /* could be followed by options */
232 } __attribute__((__packed__));
234 #define nd_ra_type nd_ra_hdr.icmp6_type
235 #define nd_ra_code nd_ra_hdr.icmp6_code
236 #define nd_ra_cksum nd_ra_hdr.icmp6_cksum
237 #define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0]
238 #define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1]
239 #define ND_RA_FLAG_MANAGED 0x80
240 #define ND_RA_FLAG_OTHER 0x40
241 #define ND_RA_FLAG_HA 0x20
244 * Router preference values based on draft-draves-ipngwg-router-selection-01.
245 * These are non-standard definitions.
247 #define ND_RA_FLAG_RTPREF_MASK 0x18 /* 00011000 */
249 #define ND_RA_FLAG_RTPREF_HIGH 0x08 /* 00001000 */
250 #define ND_RA_FLAG_RTPREF_MEDIUM 0x00 /* 00000000 */
251 #define ND_RA_FLAG_RTPREF_LOW 0x18 /* 00011000 */
252 #define ND_RA_FLAG_RTPREF_RSV 0x10 /* 00010000 */
254 #define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1]
256 struct nd_neighbor_solicit { /* neighbor solicitation */
257 struct icmp6_hdr nd_ns_hdr;
258 struct in6_addr nd_ns_target; /*target address */
259 /* could be followed by options */
260 } __attribute__((__packed__));
262 #define nd_ns_type nd_ns_hdr.icmp6_type
263 #define nd_ns_code nd_ns_hdr.icmp6_code
264 #define nd_ns_cksum nd_ns_hdr.icmp6_cksum
265 #define nd_ns_reserved nd_ns_hdr.icmp6_data32[0]
267 struct nd_neighbor_advert { /* neighbor advertisement */
268 struct icmp6_hdr nd_na_hdr;
269 struct in6_addr nd_na_target; /* target address */
270 /* could be followed by options */
271 } __attribute__((__packed__));
273 #define nd_na_type nd_na_hdr.icmp6_type
274 #define nd_na_code nd_na_hdr.icmp6_code
275 #define nd_na_cksum nd_na_hdr.icmp6_cksum
276 #define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0]
277 #if _BYTE_ORDER == _BIG_ENDIAN
278 #define ND_NA_FLAG_ROUTER 0x80000000
279 #define ND_NA_FLAG_SOLICITED 0x40000000
280 #define ND_NA_FLAG_OVERRIDE 0x20000000
281 #elif _BYTE_ORDER == _LITTLE_ENDIAN
282 #define ND_NA_FLAG_ROUTER 0x80
283 #define ND_NA_FLAG_SOLICITED 0x40
284 #define ND_NA_FLAG_OVERRIDE 0x20
285 #else
286 #error "Byte order not implemented"
287 #endif
289 struct nd_redirect { /* redirect */
290 struct icmp6_hdr nd_rd_hdr;
291 struct in6_addr nd_rd_target; /* target address */
292 struct in6_addr nd_rd_dst; /* destination address */
293 /* could be followed by options */
294 } __attribute__((__packed__));
296 #define nd_rd_type nd_rd_hdr.icmp6_type
297 #define nd_rd_code nd_rd_hdr.icmp6_code
298 #define nd_rd_cksum nd_rd_hdr.icmp6_cksum
299 #define nd_rd_reserved nd_rd_hdr.icmp6_data32[0]
301 struct nd_opt_hdr { /* Neighbor discovery option header */
302 u_int8_t nd_opt_type;
303 u_int8_t nd_opt_len;
304 /* followed by option specific data*/
305 } __attribute__((__packed__));
307 #define ND_OPT_SOURCE_LINKADDR 1
308 #define ND_OPT_TARGET_LINKADDR 2
309 #define ND_OPT_PREFIX_INFORMATION 3
310 #define ND_OPT_REDIRECTED_HEADER 4
311 #define ND_OPT_MTU 5
313 #define ND_OPT_ROUTE_INFO 200 /* draft-ietf-ipngwg-router-preference, not officially assigned yet */
315 struct nd_opt_prefix_info { /* prefix information */
316 u_int8_t nd_opt_pi_type;
317 u_int8_t nd_opt_pi_len;
318 u_int8_t nd_opt_pi_prefix_len;
319 u_int8_t nd_opt_pi_flags_reserved;
320 u_int32_t nd_opt_pi_valid_time;
321 u_int32_t nd_opt_pi_preferred_time;
322 u_int32_t nd_opt_pi_reserved2;
323 struct in6_addr nd_opt_pi_prefix;
324 } __attribute__((__packed__));
326 #define ND_OPT_PI_FLAG_ONLINK 0x80
327 #define ND_OPT_PI_FLAG_AUTO 0x40
329 struct nd_opt_rd_hdr { /* redirected header */
330 u_int8_t nd_opt_rh_type;
331 u_int8_t nd_opt_rh_len;
332 u_int16_t nd_opt_rh_reserved1;
333 u_int32_t nd_opt_rh_reserved2;
334 /* followed by IP header and data */
335 } __attribute__((__packed__));
337 struct nd_opt_mtu { /* MTU option */
338 u_int8_t nd_opt_mtu_type;
339 u_int8_t nd_opt_mtu_len;
340 u_int16_t nd_opt_mtu_reserved;
341 u_int32_t nd_opt_mtu_mtu;
342 } __attribute__((__packed__));
344 struct nd_opt_route_info { /* route info */
345 u_int8_t nd_opt_rti_type;
346 u_int8_t nd_opt_rti_len;
347 u_int8_t nd_opt_rti_prefixlen;
348 u_int8_t nd_opt_rti_flags;
349 u_int32_t nd_opt_rti_lifetime;
350 /* prefix follows */
351 } __attribute__((__packed__));
354 * icmp6 namelookup
357 struct icmp6_namelookup {
358 struct icmp6_hdr icmp6_nl_hdr;
359 u_int8_t icmp6_nl_nonce[8];
360 int32_t icmp6_nl_ttl;
361 #if 0
362 u_int8_t icmp6_nl_len;
363 u_int8_t icmp6_nl_name[3];
364 #endif
365 /* could be followed by options */
366 } __attribute__((__packed__));
369 * icmp6 node information
371 struct icmp6_nodeinfo {
372 struct icmp6_hdr icmp6_ni_hdr;
373 u_int8_t icmp6_ni_nonce[8];
374 /* could be followed by reply data */
375 } __attribute__((__packed__));
377 #define ni_type icmp6_ni_hdr.icmp6_type
378 #define ni_code icmp6_ni_hdr.icmp6_code
379 #define ni_cksum icmp6_ni_hdr.icmp6_cksum
380 #define ni_qtype icmp6_ni_hdr.icmp6_data16[0]
381 #define ni_flags icmp6_ni_hdr.icmp6_data16[1]
383 #define NI_QTYPE_NOOP 0 /* NOOP */
384 #define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes */
385 #define NI_QTYPE_FQDN 2 /* FQDN (draft 04) */
386 #define NI_QTYPE_DNSNAME 2 /* DNS Name */
387 #define NI_QTYPE_NODEADDR 3 /* Node Addresses */
388 #define NI_QTYPE_IPV4ADDR 4 /* IPv4 Addresses */
390 #if _BYTE_ORDER == _BIG_ENDIAN
391 #define NI_SUPTYPE_FLAG_COMPRESS 0x1
392 #define NI_FQDN_FLAG_VALIDTTL 0x1
393 #elif _BYTE_ORDER == _LITTLE_ENDIAN
394 #define NI_SUPTYPE_FLAG_COMPRESS 0x0100
395 #define NI_FQDN_FLAG_VALIDTTL 0x0100
396 #else
397 #error "Byte order not implemented"
398 #endif
400 #ifdef NAME_LOOKUPS_04
401 #if _BYTE_ORDER == _BIG_ENDIAN
402 #define NI_NODEADDR_FLAG_LINKLOCAL 0x1
403 #define NI_NODEADDR_FLAG_SITELOCAL 0x2
404 #define NI_NODEADDR_FLAG_GLOBAL 0x4
405 #define NI_NODEADDR_FLAG_ALL 0x8
406 #define NI_NODEADDR_FLAG_TRUNCATE 0x10
407 #define NI_NODEADDR_FLAG_ANYCAST 0x20 /* just experimental. not in spec */
408 #elif _BYTE_ORDER == _LITTLE_ENDIAN
409 #define NI_NODEADDR_FLAG_LINKLOCAL 0x0100
410 #define NI_NODEADDR_FLAG_SITELOCAL 0x0200
411 #define NI_NODEADDR_FLAG_GLOBAL 0x0400
412 #define NI_NODEADDR_FLAG_ALL 0x0800
413 #define NI_NODEADDR_FLAG_TRUNCATE 0x1000
414 #define NI_NODEADDR_FLAG_ANYCAST 0x2000 /* just experimental. not in spec */
415 #else
416 #error "Byte order not implemented"
417 #endif
418 #else /* draft-ietf-ipngwg-icmp-name-lookups-05 (and later?) */
419 #if _BYTE_ORDER == _BIG_ENDIAN
420 #define NI_NODEADDR_FLAG_TRUNCATE 0x1
421 #define NI_NODEADDR_FLAG_ALL 0x2
422 #define NI_NODEADDR_FLAG_COMPAT 0x4
423 #define NI_NODEADDR_FLAG_LINKLOCAL 0x8
424 #define NI_NODEADDR_FLAG_SITELOCAL 0x10
425 #define NI_NODEADDR_FLAG_GLOBAL 0x20
426 #define NI_NODEADDR_FLAG_ANYCAST 0x40 /* just experimental. not in spec */
427 #elif _BYTE_ORDER == _LITTLE_ENDIAN
428 #define NI_NODEADDR_FLAG_TRUNCATE 0x0100
429 #define NI_NODEADDR_FLAG_ALL 0x0200
430 #define NI_NODEADDR_FLAG_COMPAT 0x0400
431 #define NI_NODEADDR_FLAG_LINKLOCAL 0x0800
432 #define NI_NODEADDR_FLAG_SITELOCAL 0x1000
433 #define NI_NODEADDR_FLAG_GLOBAL 0x2000
434 #define NI_NODEADDR_FLAG_ANYCAST 0x4000 /* just experimental. not in spec */
435 #else
436 #error "Byte order not implemented"
437 #endif
438 #endif
440 struct ni_reply_fqdn {
441 u_int32_t ni_fqdn_ttl; /* TTL */
442 u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */
443 u_int8_t ni_fqdn_name[3]; /* XXX: alignment */
444 } __attribute__((__packed__));
447 * Router Renumbering. as router-renum-08.txt
449 struct icmp6_router_renum { /* router renumbering header */
450 struct icmp6_hdr rr_hdr;
451 u_int8_t rr_segnum;
452 u_int8_t rr_flags;
453 u_int16_t rr_maxdelay;
454 u_int32_t rr_reserved;
455 } __attribute__((__packed__));
457 #define ICMP6_RR_FLAGS_TEST 0x80
458 #define ICMP6_RR_FLAGS_REQRESULT 0x40
459 #define ICMP6_RR_FLAGS_FORCEAPPLY 0x20
460 #define ICMP6_RR_FLAGS_SPECSITE 0x10
461 #define ICMP6_RR_FLAGS_PREVDONE 0x08
463 #define rr_type rr_hdr.icmp6_type
464 #define rr_code rr_hdr.icmp6_code
465 #define rr_cksum rr_hdr.icmp6_cksum
466 #define rr_seqnum rr_hdr.icmp6_data32[0]
468 struct rr_pco_match { /* match prefix part */
469 u_int8_t rpm_code;
470 u_int8_t rpm_len;
471 u_int8_t rpm_ordinal;
472 u_int8_t rpm_matchlen;
473 u_int8_t rpm_minlen;
474 u_int8_t rpm_maxlen;
475 u_int16_t rpm_reserved;
476 struct in6_addr rpm_prefix;
477 } __attribute__((__packed__));
479 #define RPM_PCO_ADD 1
480 #define RPM_PCO_CHANGE 2
481 #define RPM_PCO_SETGLOBAL 3
482 #define RPM_PCO_MAX 4
484 struct rr_pco_use { /* use prefix part */
485 u_int8_t rpu_uselen;
486 u_int8_t rpu_keeplen;
487 u_int8_t rpu_ramask;
488 u_int8_t rpu_raflags;
489 u_int32_t rpu_vltime;
490 u_int32_t rpu_pltime;
491 u_int32_t rpu_flags;
492 struct in6_addr rpu_prefix;
493 } __attribute__((__packed__));
494 #define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK 0x80
495 #define ICMP6_RR_PCOUSE_RAFLAGS_AUTO 0x40
497 #if _BYTE_ORDER == _BIG_ENDIAN
498 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000
499 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000
500 #elif _BYTE_ORDER == _LITTLE_ENDIAN
501 #define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80
502 #define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40
503 #else
504 #error "Byte order not implemented"
505 #endif
507 struct rr_result { /* router renumbering result message */
508 u_int16_t rrr_flags;
509 u_int8_t rrr_ordinal;
510 u_int8_t rrr_matchedlen;
511 u_int32_t rrr_ifid;
512 struct in6_addr rrr_prefix;
513 } __attribute__((__packed__));
514 #if _BYTE_ORDER == _BIG_ENDIAN
515 #define ICMP6_RR_RESULT_FLAGS_OOB 0x0002
516 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001
517 #elif _BYTE_ORDER == _LITTLE_ENDIAN
518 #define ICMP6_RR_RESULT_FLAGS_OOB 0x0200
519 #define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0100
520 #else
521 #error "Byte order not implemented"
522 #endif
525 * icmp6 filter structures.
528 struct icmp6_filter {
529 u_int32_t icmp6_filt[8];
532 #ifdef _KERNEL
533 #define ICMP6_FILTER_SETPASSALL(filterp) \
534 do { \
535 int i; u_char *p; \
536 p = (u_char *)filterp; \
537 for (i = 0; i < sizeof(struct icmp6_filter); i++) \
538 p[i] = 0xff; \
539 } while (0)
540 #define ICMP6_FILTER_SETBLOCKALL(filterp) \
541 bzero(filterp, sizeof(struct icmp6_filter))
542 #else /* _KERNEL */
543 #define ICMP6_FILTER_SETPASSALL(filterp) \
544 memset(filterp, 0xff, sizeof(struct icmp6_filter))
545 #define ICMP6_FILTER_SETBLOCKALL(filterp) \
546 memset(filterp, 0x00, sizeof(struct icmp6_filter))
547 #endif /* _KERNEL */
549 #define ICMP6_FILTER_SETPASS(type, filterp) \
550 (((filterp)->icmp6_filt[(type) >> 5]) |= (1 << ((type) & 31)))
551 #define ICMP6_FILTER_SETBLOCK(type, filterp) \
552 (((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31)))
553 #define ICMP6_FILTER_WILLPASS(type, filterp) \
554 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0)
555 #define ICMP6_FILTER_WILLBLOCK(type, filterp) \
556 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0)
559 * Variables related to this implementation
560 * of the internet control message protocol version 6.
562 struct icmp6errstat {
563 u_quad_t icp6errs_dst_unreach_noroute;
564 u_quad_t icp6errs_dst_unreach_admin;
565 u_quad_t icp6errs_dst_unreach_beyondscope;
566 u_quad_t icp6errs_dst_unreach_addr;
567 u_quad_t icp6errs_dst_unreach_noport;
568 u_quad_t icp6errs_packet_too_big;
569 u_quad_t icp6errs_time_exceed_transit;
570 u_quad_t icp6errs_time_exceed_reassembly;
571 u_quad_t icp6errs_paramprob_header;
572 u_quad_t icp6errs_paramprob_nextheader;
573 u_quad_t icp6errs_paramprob_option;
574 u_quad_t icp6errs_redirect; /* we regard redirect as an error here */
575 u_quad_t icp6errs_unknown;
578 struct icmp6stat {
579 /* statistics related to icmp6 packets generated */
580 u_quad_t icp6s_error; /* # of calls to icmp6_error */
581 u_quad_t icp6s_canterror; /* no error 'cuz old was icmp */
582 u_quad_t icp6s_toofreq; /* no error 'cuz rate limitation */
583 u_quad_t icp6s_outhist[256];
584 /* statistics related to input message processed */
585 u_quad_t icp6s_badcode; /* icmp6_code out of range */
586 u_quad_t icp6s_tooshort; /* packet < sizeof(struct icmp6_hdr) */
587 u_quad_t icp6s_checksum; /* bad checksum */
588 u_quad_t icp6s_badlen; /* calculated bound mismatch */
590 * number of responses: this member is inherited from netinet code, but
591 * for netinet6 code, it is already available in icp6s_outhist[].
593 u_quad_t icp6s_reflect;
594 u_quad_t icp6s_inhist[256];
595 u_quad_t icp6s_nd_toomanyopt; /* too many ND options */
596 struct icmp6errstat icp6s_outerrhist;
597 #define icp6s_odst_unreach_noroute \
598 icp6s_outerrhist.icp6errs_dst_unreach_noroute
599 #define icp6s_odst_unreach_admin icp6s_outerrhist.icp6errs_dst_unreach_admin
600 #define icp6s_odst_unreach_beyondscope \
601 icp6s_outerrhist.icp6errs_dst_unreach_beyondscope
602 #define icp6s_odst_unreach_addr icp6s_outerrhist.icp6errs_dst_unreach_addr
603 #define icp6s_odst_unreach_noport icp6s_outerrhist.icp6errs_dst_unreach_noport
604 #define icp6s_opacket_too_big icp6s_outerrhist.icp6errs_packet_too_big
605 #define icp6s_otime_exceed_transit \
606 icp6s_outerrhist.icp6errs_time_exceed_transit
607 #define icp6s_otime_exceed_reassembly \
608 icp6s_outerrhist.icp6errs_time_exceed_reassembly
609 #define icp6s_oparamprob_header icp6s_outerrhist.icp6errs_paramprob_header
610 #define icp6s_oparamprob_nextheader \
611 icp6s_outerrhist.icp6errs_paramprob_nextheader
612 #define icp6s_oparamprob_option icp6s_outerrhist.icp6errs_paramprob_option
613 #define icp6s_oredirect icp6s_outerrhist.icp6errs_redirect
614 #define icp6s_ounknown icp6s_outerrhist.icp6errs_unknown
615 u_quad_t icp6s_pmtuchg; /* path MTU changes */
616 u_quad_t icp6s_nd_badopt; /* bad ND options */
617 u_quad_t icp6s_badns; /* bad neighbor solicitation */
618 u_quad_t icp6s_badna; /* bad neighbor advertisement */
619 u_quad_t icp6s_badrs; /* bad router advertisement */
620 u_quad_t icp6s_badra; /* bad router advertisement */
621 u_quad_t icp6s_badredirect; /* bad redirect message */
625 * Names for ICMP sysctl objects
627 #define ICMPV6CTL_STATS 1
628 #define ICMPV6CTL_REDIRACCEPT 2 /* accept/process redirects */
629 #define ICMPV6CTL_REDIRTIMEOUT 3 /* redirect cache time */
630 #if 0 /*obsoleted*/
631 #define ICMPV6CTL_ERRRATELIMIT 5 /* ICMPv6 error rate limitation */
632 #endif
633 #define ICMPV6CTL_ND6_PRUNE 6
634 #define ICMPV6CTL_ND6_DELAY 8
635 #define ICMPV6CTL_ND6_UMAXTRIES 9
636 #define ICMPV6CTL_ND6_MMAXTRIES 10
637 #define ICMPV6CTL_ND6_USELOOPBACK 11
638 /*#define ICMPV6CTL_ND6_PROXYALL 12 obsoleted, do not reuse here */
639 #define ICMPV6CTL_NODEINFO 13
640 #define ICMPV6CTL_ERRPPSLIMIT 14 /* ICMPv6 error pps limitation */
641 #define ICMPV6CTL_ND6_MAXNUDHINT 15
642 #define ICMPV6CTL_MTUDISC_HIWAT 16
643 #define ICMPV6CTL_MTUDISC_LOWAT 17
644 #define ICMPV6CTL_ND6_DEBUG 18
645 #define ICMPV6CTL_ND6_DRLIST 19
646 #define ICMPV6CTL_ND6_PRLIST 20
647 #define ICMPV6CTL_MAXID 21
649 #define ICMPV6CTL_NAMES { \
650 { 0, 0 }, \
651 { 0, 0 }, \
652 { "rediraccept", CTLTYPE_INT }, \
653 { "redirtimeout", CTLTYPE_INT }, \
654 { 0, 0 }, \
655 { 0, 0 }, \
656 { "nd6_prune", CTLTYPE_INT }, \
657 { 0, 0 }, \
658 { "nd6_delay", CTLTYPE_INT }, \
659 { "nd6_umaxtries", CTLTYPE_INT }, \
660 { "nd6_mmaxtries", CTLTYPE_INT }, \
661 { "nd6_useloopback", CTLTYPE_INT }, \
662 { 0, 0 }, \
663 { "nodeinfo", CTLTYPE_INT }, \
664 { "errppslimit", CTLTYPE_INT }, \
665 { "nd6_maxnudhint", CTLTYPE_INT }, \
666 { "mtudisc_hiwat", CTLTYPE_INT }, \
667 { "mtudisc_lowat", CTLTYPE_INT }, \
668 { "nd6_debug", CTLTYPE_INT }, \
669 { 0, 0 }, \
670 { 0, 0 }, \
673 #define RTF_PROBEMTU RTF_PROTO1
675 #ifdef _KERNEL
676 # ifdef __STDC__
677 struct rtentry;
678 struct rttimer;
679 struct in6_multi;
680 # endif
681 void icmp6_init (void);
682 void icmp6_paramerror (struct mbuf *, int);
683 void icmp6_error (struct mbuf *, int, int, int);
684 int icmp6_input (struct mbuf **, int *, int);
685 void icmp6_fasttimo (void);
686 void icmp6_reflect (struct mbuf *, size_t);
687 void icmp6_prepare (struct mbuf *);
688 void icmp6_redirect_input (struct mbuf *, int);
689 void icmp6_redirect_output (struct mbuf *, struct rtentry *);
691 struct ip6ctlparam;
692 void icmp6_mtudisc_update (struct ip6ctlparam *, int);
694 /* XXX: is this the right place for these macros? */
695 #define icmp6_ifstat_inc(ifp, tag) \
696 do { \
697 if (ifp) \
698 ((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->icmp6_ifstat->tag++; \
699 } while (0)
701 #define icmp6_ifoutstat_inc(ifp, type, code) \
702 do { \
703 icmp6_ifstat_inc(ifp, ifs6_out_msg); \
704 if (type < ICMP6_INFOMSG_MASK) \
705 icmp6_ifstat_inc(ifp, ifs6_out_error); \
706 switch (type) { \
707 case ICMP6_DST_UNREACH: \
708 icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \
709 if (code == ICMP6_DST_UNREACH_ADMIN) \
710 icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \
711 break; \
712 case ICMP6_PACKET_TOO_BIG: \
713 icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \
714 break; \
715 case ICMP6_TIME_EXCEEDED: \
716 icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \
717 break; \
718 case ICMP6_PARAM_PROB: \
719 icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \
720 break; \
721 case ICMP6_ECHO_REQUEST: \
722 icmp6_ifstat_inc(ifp, ifs6_out_echo); \
723 break; \
724 case ICMP6_ECHO_REPLY: \
725 icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \
726 break; \
727 case MLD_LISTENER_QUERY: \
728 icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \
729 break; \
730 case MLD_LISTENER_REPORT: \
731 icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \
732 break; \
733 case MLD_LISTENER_DONE: \
734 icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \
735 break; \
736 case ND_ROUTER_SOLICIT: \
737 icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \
738 break; \
739 case ND_ROUTER_ADVERT: \
740 icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \
741 break; \
742 case ND_NEIGHBOR_SOLICIT: \
743 icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \
744 break; \
745 case ND_NEIGHBOR_ADVERT: \
746 icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \
747 break; \
748 case ND_REDIRECT: \
749 icmp6_ifstat_inc(ifp, ifs6_out_redirect); \
750 break; \
752 } while (0)
754 extern int icmp6_rediraccept; /* accept/process redirects */
755 extern int icmp6_redirtimeout; /* cache time for redirect routes */
756 #endif /* _KERNEL */
758 #endif /* not _NETINET_ICMP6_H_ */