1/*
2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the project nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
| 1/*
2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the project nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
|
30 */
31
32/*
33 * Copyright (c) 1982, 1986, 1993
34 * The Regents of the University of California. All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. All advertising materials mentioning features or use of this software
45 * must display the following acknowledgement:
46 * This product includes software developed by the University of
47 * California, Berkeley and its contributors.
48 * 4. Neither the name of the University nor the names of its contributors
49 * may be used to endorse or promote products derived from this software
50 * without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62 * SUCH DAMAGE.
63 *
64 * @(#)ip_icmp.h 8.1 (Berkeley) 6/10/93
65 */
66
67#ifndef _NETINET6_ICMPV6_H_
68#define _NETINET6_ICMPV6_H_
69
70#define ICMPV6_PLD_MAXLEN 1232 /* IPV6_MMTU - sizeof(struct ip6_hdr)
71 - sizeof(struct icmp6_hdr) */
72
73struct icmp6_hdr {
74 u_int8_t icmp6_type; /* type field */
75 u_int8_t icmp6_code; /* code field */
76 u_int16_t icmp6_cksum; /* checksum field */
77 union {
78 u_int32_t icmp6_un_data32[1]; /* type-specific field */
79 u_int16_t icmp6_un_data16[2]; /* type-specific field */
80 u_int8_t icmp6_un_data8[4]; /* type-specific field */
81 } icmp6_dataun;
82};
83
84#define icmp6_data32 icmp6_dataun.icmp6_un_data32
85#define icmp6_data16 icmp6_dataun.icmp6_un_data16
86#define icmp6_data8 icmp6_dataun.icmp6_un_data8
87#define icmp6_pptr icmp6_data32[0] /* parameter prob */
88#define icmp6_mtu icmp6_data32[0] /* packet too big */
89#define icmp6_id icmp6_data16[0] /* echo request/reply */
90#define icmp6_seq icmp6_data16[1] /* echo request/reply */
91#define icmp6_maxdelay icmp6_data16[0] /* mcast group membership */
92
93#define ICMP6_DST_UNREACH 1 /* dest unreachable, codes: */
94#define ICMP6_PACKET_TOO_BIG 2 /* packet too big */
95#define ICMP6_TIME_EXCEEDED 3 /* time exceeded, code: */
96#define ICMP6_PARAM_PROB 4 /* ip6 header bad */
97
98#define ICMP6_ECHO_REQUEST 128 /* echo service */
99#define ICMP6_ECHO_REPLY 129 /* echo reply */
100#define ICMP6_MEMBERSHIP_QUERY 130 /* group membership query */
101#define MLD6_LISTENER_QUERY 130 /* multicast listener query */
102#define ICMP6_MEMBERSHIP_REPORT 131 /* group membership report */
103#define MLD6_LISTENER_REPORT 131 /* multicast listener report */
104#define ICMP6_MEMBERSHIP_REDUCTION 132 /* group membership termination */
105#define MLD6_LISTENER_DONE 132 /* multicast listener done */
106
107#define ND_ROUTER_SOLICIT 133 /* router solicitation */
108#define ND_ROUTER_ADVERT 134 /* router advertisment */
109#define ND_NEIGHBOR_SOLICIT 135 /* neighbor solicitation */
110#define ND_NEIGHBOR_ADVERT 136 /* neighbor advertisment */
111#define ND_REDIRECT 137 /* redirect */
112
113#define ICMP6_ROUTER_RENUMBERING 138 /* router renumbering */
114
115#define ICMP6_WRUREQUEST 139 /* who are you request */
116#define ICMP6_WRUREPLY 140 /* who are you reply */
117#define ICMP6_FQDN_QUERY 139 /* FQDN query */
118#define ICMP6_FQDN_REPLY 140 /* FQDN reply */
119#define ICMP6_NI_QUERY 139 /* node information request */
120#define ICMP6_NI_REPLY 140 /* node information reply */
121
122/* The definitions below are experimental. TBA */
123#define MLD6_MTRACE_RESP 141 /* mtrace response(to sender) */
124#define MLD6_MTRACE 142 /* mtrace messages */
125
126#define ICMP6_MAXTYPE 142
127
128#define ICMP6_DST_UNREACH_NOROUTE 0 /* no route to destination */
129#define ICMP6_DST_UNREACH_ADMIN 1 /* administratively prohibited */
130#define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor(obsolete) */
131#define ICMP6_DST_UNREACH_BEYONDSCOPE 2 /* beyond scope of source address */
132#define ICMP6_DST_UNREACH_ADDR 3 /* address unreachable */
133#define ICMP6_DST_UNREACH_NOPORT 4 /* port unreachable */
134
135#define ICMP6_TIME_EXCEED_TRANSIT 0 /* ttl==0 in transit */
136#define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* ttl==0 in reass */
137
138#define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */
139#define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized next header */
140#define ICMP6_PARAMPROB_OPTION 2 /* unrecognized option */
141
142#define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */
143
144#define ICMP6_NI_SUCESS 0 /* node information successful reply */
145#define ICMP6_NI_REFUSED 1 /* node information request is refused */
146#define ICMP6_NI_UNKNOWN 2 /* unknown Qtype */
147
148#define ICMP6_ROUTER_RENUMBERING_COMMAND 0 /* rr command */
149#define ICMP6_ROUTER_RENUMBERING_RESULT 1 /* rr result */
150#define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 /* rr seq num reset */
151
152/* Used in kernel only */
153#define ND_REDIRECT_ONLINK 0 /* redirect to an on-link node */
154#define ND_REDIRECT_ROUTER 1 /* redirect to a better router */
155
156/*
157 * Multicast Listener Discovery
158 */
159struct mld6_hdr {
160 struct icmp6_hdr mld6_hdr;
161 struct in6_addr mld6_addr; /* multicast address */
162};
163
164#define mld6_type mld6_hdr.icmp6_type
165#define mld6_code mld6_hdr.icmp6_code
166#define mld6_cksum mld6_hdr.icmp6_cksum
167#define mld6_maxdelay mld6_hdr.icmp6_data16[0]
168#define mld6_reserved mld6_hdr.icmp6_data16[1]
169
170/*
171 * Neighbor Discovery
172 */
173
174struct nd_router_solicit { /* router solicitation */
175 struct icmp6_hdr nd_rs_hdr;
176 /* could be followed by options */
177};
178
179#define nd_rs_type nd_rs_hdr.icmp6_type
180#define nd_rs_code nd_rs_hdr.icmp6_code
181#define nd_rs_cksum nd_rs_hdr.icmp6_cksum
182#define nd_rs_reserved nd_rs_hdr.icmp6_data32[0]
183
184struct nd_router_advert { /* router advertisement */
185 struct icmp6_hdr nd_ra_hdr;
186 u_int32_t nd_ra_reachable; /* reachable time */
187 u_int32_t nd_ra_retransmit; /* retransmit timer */
188 /* could be followed by options */
189};
190
191#define nd_ra_type nd_ra_hdr.icmp6_type
192#define nd_ra_code nd_ra_hdr.icmp6_code
193#define nd_ra_cksum nd_ra_hdr.icmp6_cksum
194#define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0]
195#define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1]
196#define ND_RA_FLAG_MANAGED 0x80
197#define ND_RA_FLAG_OTHER 0x40
198#define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1]
199
200struct nd_neighbor_solicit { /* neighbor solicitation */
201 struct icmp6_hdr nd_ns_hdr;
202 struct in6_addr nd_ns_target; /*target address */
203 /* could be followed by options */
204};
205
206#define nd_ns_type nd_ns_hdr.icmp6_type
207#define nd_ns_code nd_ns_hdr.icmp6_code
208#define nd_ns_cksum nd_ns_hdr.icmp6_cksum
209#define nd_ns_reserved nd_ns_hdr.icmp6_data32[0]
210
211struct nd_neighbor_advert { /* neighbor advertisement */
212 struct icmp6_hdr nd_na_hdr;
213 struct in6_addr nd_na_target; /* target address */
214 /* could be followed by options */
215};
216
217#define nd_na_type nd_na_hdr.icmp6_type
218#define nd_na_code nd_na_hdr.icmp6_code
219#define nd_na_cksum nd_na_hdr.icmp6_cksum
220#define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0]
221#if BYTE_ORDER == BIG_ENDIAN
222#define ND_NA_FLAG_ROUTER 0x80000000
223#define ND_NA_FLAG_SOLICITED 0x40000000
224#define ND_NA_FLAG_OVERRIDE 0x20000000
225#elif BYTE_ORDER == LITTLE_ENDIAN
226#define ND_NA_FLAG_ROUTER 0x80
227#define ND_NA_FLAG_SOLICITED 0x40
228#define ND_NA_FLAG_OVERRIDE 0x20
229#endif
230
231struct nd_redirect { /* redirect */
232 struct icmp6_hdr nd_rd_hdr;
233 struct in6_addr nd_rd_target; /* target address */
234 struct in6_addr nd_rd_dst; /* destination address */
235 /* could be followed by options */
236};
237
238#define nd_rd_type nd_rd_hdr.icmp6_type
239#define nd_rd_code nd_rd_hdr.icmp6_code
240#define nd_rd_cksum nd_rd_hdr.icmp6_cksum
241#define nd_rd_reserved nd_rd_hdr.icmp6_data32[0]
242
243struct nd_opt_hdr { /* Neighbor discovery option header */
244 u_int8_t nd_opt_type;
245 u_int8_t nd_opt_len;
246 /* followed by option specific data*/
247};
248
249#define ND_OPT_SOURCE_LINKADDR 1
250#define ND_OPT_TARGET_LINKADDR 2
251#define ND_OPT_PREFIX_INFORMATION 3
252#define ND_OPT_REDIRECTED_HEADER 4
253#define ND_OPT_MTU 5
254
255struct nd_opt_prefix_info { /* prefix information */
256 u_int8_t nd_opt_pi_type;
257 u_int8_t nd_opt_pi_len;
258 u_int8_t nd_opt_pi_prefix_len;
259 u_int8_t nd_opt_pi_flags_reserved;
260 u_int32_t nd_opt_pi_valid_time;
261 u_int32_t nd_opt_pi_preferred_time;
262 u_int32_t nd_opt_pi_reserved2;
263 struct in6_addr nd_opt_pi_prefix;
264};
265
266#define ND_OPT_PI_FLAG_ONLINK 0x80
267#define ND_OPT_PI_FLAG_AUTO 0x40
268
269struct nd_opt_rd_hdr { /* redirected header */
270 u_int8_t nd_opt_rh_type;
271 u_int8_t nd_opt_rh_len;
272 u_int16_t nd_opt_rh_reserved1;
273 u_int32_t nd_opt_rh_reserved2;
274 /* followed by IP header and data */
275};
276
277struct nd_opt_mtu { /* MTU option */
278 u_int8_t nd_opt_mtu_type;
279 u_int8_t nd_opt_mtu_len;
280 u_int16_t nd_opt_mtu_reserved;
281 u_int32_t nd_opt_mtu_mtu;
282};
283
284/*
285 * icmp6 namelookup
286 */
287
288struct icmp6_namelookup {
289 struct icmp6_hdr icmp6_nl_hdr;
290 u_int64_t icmp6_nl_nonce;
291 u_int32_t icmp6_nl_ttl;
292 /* could be followed by options */
293};
294
295/*
296 * icmp6 node information
297 */
298struct icmp6_nodeinfo {
299 struct icmp6_hdr icmp6_ni_hdr;
300 u_int64_t icmp6_ni_nonce;
301 /* could be followed by reply data */
302};
303
304#define ni_type icmp6_ni_hdr.icmp6_type
305#define ni_code icmp6_ni_hdr.icmp6_code
306#define ni_cksum icmp6_ni_hdr.icmp6_cksum
307#define ni_qtype icmp6_ni_hdr.icmp6_data16[0]
308#define ni_flags icmp6_ni_hdr.icmp6_data16[1]
309
310
311#define NI_QTYPE_NOOP 0 /* NOOP */
312#define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes */
313#define NI_QTYPE_FQDN 2 /* FQDN */
314#define NI_QTYPE_NODEADDR 3 /* Node Addresses. XXX: spec says 2, but it may be a typo... */
315
316#if BYTE_ORDER == BIG_ENDIAN
317#define NI_SUPTYPE_FLAG_COMPRESS 0x1
318#define NI_FQDN_FLAG_VALIDTTL 0x1
319#define NI_NODEADDR_FLAG_LINKLOCAL 0x1
320#define NI_NODEADDR_FLAG_SITELOCAL 0x2
321#define NI_NODEADDR_FLAG_GLOBAL 0x4
322#define NI_NODEADDR_FLAG_ALL 0x8
323#define NI_NODEADDR_FLAG_TRUNCATE 0x10
324#define NI_NODEADDR_FLAG_ANYCAST 0x20 /* just experimental. not in spec */
325#elif BYTE_ORDER == LITTLE_ENDIAN
326#define NI_SUPTYPE_FLAG_COMPRESS 0x0100
327#define NI_FQDN_FLAG_VALIDTTL 0x0100
328#define NI_NODEADDR_FLAG_LINKLOCAL 0x0100
329#define NI_NODEADDR_FLAG_SITELOCAL 0x0200
330#define NI_NODEADDR_FLAG_GLOBAL 0x0400
331#define NI_NODEADDR_FLAG_ALL 0x0800
332#define NI_NODEADDR_FLAG_TRUNCATE 0x1000
333#define NI_NODEADDR_FLAG_ANYCAST 0x2000 /* just experimental. not in spec */
334#endif
335
336struct ni_reply_fqdn {
337 u_int32_t ni_fqdn_ttl; /* TTL */
338 u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */
339 u_int8_t ni_fqdn_name[3]; /* XXX: alignment */
340};
341
342/*
343 * Router Renumbering. as router-renum-08.txt
344 */
345struct icmp6_router_renum { /* router renumbering header */
346 struct icmp6_hdr rr_hdr;
347 u_int8_t rr_segnum;
348 u_int8_t rr_flags;
349 u_int16_t rr_maxdelay;
350 u_int32_t rr_reserved;
351};
352#define ICMP6_RR_FLAGS_SEGNUM 0x80
353#define ICMP6_RR_FLAGS_TEST 0x40
354#define ICMP6_RR_FLAGS_REQRESULT 0x20
355#define ICMP6_RR_FLAGS_FORCEAPPLY 0x10
356#define ICMP6_RR_FLAGS_SPECSITE 0x08
357#define ICMP6_RR_FLAGS_PREVDONE 0x04
358
359#define rr_type rr_hdr.icmp6_type
360#define rr_code rr_hdr.icmp6_code
361#define rr_cksum rr_hdr.icmp6_cksum
362#define rr_seqnum rr_hdr.icmp6_data32[0]
363
364struct rr_pco_match { /* match prefix part */
365 u_int8_t rpm_code;
366 u_int8_t rpm_len;
367 u_int8_t rpm_ordinal;
368 u_int8_t rpm_matchlen;
369 u_int8_t rpm_minlen;
370 u_int8_t rpm_maxlen;
371 u_int16_t rpm_reserved;
372 struct in6_addr rpm_prefix;
373};
374
375#define RPM_PCO_ADD 1
376#define RPM_PCO_CHANGE 2
377#define RPM_PCO_SETGLOBAL 3
378
379struct rr_pco_use { /* use prefix part */
380 u_int8_t rpu_uselen;
381 u_int8_t rpu_keeplen;
382 u_int8_t rpu_ramask;
383 u_int8_t rpu_raflags;
384 u_int32_t rpu_vltime;
385 u_int32_t rpu_pltime;
386 u_int32_t rpu_flags;
387 struct in6_addr rpu_prefix;
388};
| 30 */
31
32/*
33 * Copyright (c) 1982, 1986, 1993
34 * The Regents of the University of California. All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. All advertising materials mentioning features or use of this software
45 * must display the following acknowledgement:
46 * This product includes software developed by the University of
47 * California, Berkeley and its contributors.
48 * 4. Neither the name of the University nor the names of its contributors
49 * may be used to endorse or promote products derived from this software
50 * without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62 * SUCH DAMAGE.
63 *
64 * @(#)ip_icmp.h 8.1 (Berkeley) 6/10/93
65 */
66
67#ifndef _NETINET6_ICMPV6_H_
68#define _NETINET6_ICMPV6_H_
69
70#define ICMPV6_PLD_MAXLEN 1232 /* IPV6_MMTU - sizeof(struct ip6_hdr)
71 - sizeof(struct icmp6_hdr) */
72
73struct icmp6_hdr {
74 u_int8_t icmp6_type; /* type field */
75 u_int8_t icmp6_code; /* code field */
76 u_int16_t icmp6_cksum; /* checksum field */
77 union {
78 u_int32_t icmp6_un_data32[1]; /* type-specific field */
79 u_int16_t icmp6_un_data16[2]; /* type-specific field */
80 u_int8_t icmp6_un_data8[4]; /* type-specific field */
81 } icmp6_dataun;
82};
83
84#define icmp6_data32 icmp6_dataun.icmp6_un_data32
85#define icmp6_data16 icmp6_dataun.icmp6_un_data16
86#define icmp6_data8 icmp6_dataun.icmp6_un_data8
87#define icmp6_pptr icmp6_data32[0] /* parameter prob */
88#define icmp6_mtu icmp6_data32[0] /* packet too big */
89#define icmp6_id icmp6_data16[0] /* echo request/reply */
90#define icmp6_seq icmp6_data16[1] /* echo request/reply */
91#define icmp6_maxdelay icmp6_data16[0] /* mcast group membership */
92
93#define ICMP6_DST_UNREACH 1 /* dest unreachable, codes: */
94#define ICMP6_PACKET_TOO_BIG 2 /* packet too big */
95#define ICMP6_TIME_EXCEEDED 3 /* time exceeded, code: */
96#define ICMP6_PARAM_PROB 4 /* ip6 header bad */
97
98#define ICMP6_ECHO_REQUEST 128 /* echo service */
99#define ICMP6_ECHO_REPLY 129 /* echo reply */
100#define ICMP6_MEMBERSHIP_QUERY 130 /* group membership query */
101#define MLD6_LISTENER_QUERY 130 /* multicast listener query */
102#define ICMP6_MEMBERSHIP_REPORT 131 /* group membership report */
103#define MLD6_LISTENER_REPORT 131 /* multicast listener report */
104#define ICMP6_MEMBERSHIP_REDUCTION 132 /* group membership termination */
105#define MLD6_LISTENER_DONE 132 /* multicast listener done */
106
107#define ND_ROUTER_SOLICIT 133 /* router solicitation */
108#define ND_ROUTER_ADVERT 134 /* router advertisment */
109#define ND_NEIGHBOR_SOLICIT 135 /* neighbor solicitation */
110#define ND_NEIGHBOR_ADVERT 136 /* neighbor advertisment */
111#define ND_REDIRECT 137 /* redirect */
112
113#define ICMP6_ROUTER_RENUMBERING 138 /* router renumbering */
114
115#define ICMP6_WRUREQUEST 139 /* who are you request */
116#define ICMP6_WRUREPLY 140 /* who are you reply */
117#define ICMP6_FQDN_QUERY 139 /* FQDN query */
118#define ICMP6_FQDN_REPLY 140 /* FQDN reply */
119#define ICMP6_NI_QUERY 139 /* node information request */
120#define ICMP6_NI_REPLY 140 /* node information reply */
121
122/* The definitions below are experimental. TBA */
123#define MLD6_MTRACE_RESP 141 /* mtrace response(to sender) */
124#define MLD6_MTRACE 142 /* mtrace messages */
125
126#define ICMP6_MAXTYPE 142
127
128#define ICMP6_DST_UNREACH_NOROUTE 0 /* no route to destination */
129#define ICMP6_DST_UNREACH_ADMIN 1 /* administratively prohibited */
130#define ICMP6_DST_UNREACH_NOTNEIGHBOR 2 /* not a neighbor(obsolete) */
131#define ICMP6_DST_UNREACH_BEYONDSCOPE 2 /* beyond scope of source address */
132#define ICMP6_DST_UNREACH_ADDR 3 /* address unreachable */
133#define ICMP6_DST_UNREACH_NOPORT 4 /* port unreachable */
134
135#define ICMP6_TIME_EXCEED_TRANSIT 0 /* ttl==0 in transit */
136#define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* ttl==0 in reass */
137
138#define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */
139#define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized next header */
140#define ICMP6_PARAMPROB_OPTION 2 /* unrecognized option */
141
142#define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */
143
144#define ICMP6_NI_SUCESS 0 /* node information successful reply */
145#define ICMP6_NI_REFUSED 1 /* node information request is refused */
146#define ICMP6_NI_UNKNOWN 2 /* unknown Qtype */
147
148#define ICMP6_ROUTER_RENUMBERING_COMMAND 0 /* rr command */
149#define ICMP6_ROUTER_RENUMBERING_RESULT 1 /* rr result */
150#define ICMP6_ROUTER_RENUMBERING_SEQNUM_RESET 255 /* rr seq num reset */
151
152/* Used in kernel only */
153#define ND_REDIRECT_ONLINK 0 /* redirect to an on-link node */
154#define ND_REDIRECT_ROUTER 1 /* redirect to a better router */
155
156/*
157 * Multicast Listener Discovery
158 */
159struct mld6_hdr {
160 struct icmp6_hdr mld6_hdr;
161 struct in6_addr mld6_addr; /* multicast address */
162};
163
164#define mld6_type mld6_hdr.icmp6_type
165#define mld6_code mld6_hdr.icmp6_code
166#define mld6_cksum mld6_hdr.icmp6_cksum
167#define mld6_maxdelay mld6_hdr.icmp6_data16[0]
168#define mld6_reserved mld6_hdr.icmp6_data16[1]
169
170/*
171 * Neighbor Discovery
172 */
173
174struct nd_router_solicit { /* router solicitation */
175 struct icmp6_hdr nd_rs_hdr;
176 /* could be followed by options */
177};
178
179#define nd_rs_type nd_rs_hdr.icmp6_type
180#define nd_rs_code nd_rs_hdr.icmp6_code
181#define nd_rs_cksum nd_rs_hdr.icmp6_cksum
182#define nd_rs_reserved nd_rs_hdr.icmp6_data32[0]
183
184struct nd_router_advert { /* router advertisement */
185 struct icmp6_hdr nd_ra_hdr;
186 u_int32_t nd_ra_reachable; /* reachable time */
187 u_int32_t nd_ra_retransmit; /* retransmit timer */
188 /* could be followed by options */
189};
190
191#define nd_ra_type nd_ra_hdr.icmp6_type
192#define nd_ra_code nd_ra_hdr.icmp6_code
193#define nd_ra_cksum nd_ra_hdr.icmp6_cksum
194#define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0]
195#define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1]
196#define ND_RA_FLAG_MANAGED 0x80
197#define ND_RA_FLAG_OTHER 0x40
198#define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1]
199
200struct nd_neighbor_solicit { /* neighbor solicitation */
201 struct icmp6_hdr nd_ns_hdr;
202 struct in6_addr nd_ns_target; /*target address */
203 /* could be followed by options */
204};
205
206#define nd_ns_type nd_ns_hdr.icmp6_type
207#define nd_ns_code nd_ns_hdr.icmp6_code
208#define nd_ns_cksum nd_ns_hdr.icmp6_cksum
209#define nd_ns_reserved nd_ns_hdr.icmp6_data32[0]
210
211struct nd_neighbor_advert { /* neighbor advertisement */
212 struct icmp6_hdr nd_na_hdr;
213 struct in6_addr nd_na_target; /* target address */
214 /* could be followed by options */
215};
216
217#define nd_na_type nd_na_hdr.icmp6_type
218#define nd_na_code nd_na_hdr.icmp6_code
219#define nd_na_cksum nd_na_hdr.icmp6_cksum
220#define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0]
221#if BYTE_ORDER == BIG_ENDIAN
222#define ND_NA_FLAG_ROUTER 0x80000000
223#define ND_NA_FLAG_SOLICITED 0x40000000
224#define ND_NA_FLAG_OVERRIDE 0x20000000
225#elif BYTE_ORDER == LITTLE_ENDIAN
226#define ND_NA_FLAG_ROUTER 0x80
227#define ND_NA_FLAG_SOLICITED 0x40
228#define ND_NA_FLAG_OVERRIDE 0x20
229#endif
230
231struct nd_redirect { /* redirect */
232 struct icmp6_hdr nd_rd_hdr;
233 struct in6_addr nd_rd_target; /* target address */
234 struct in6_addr nd_rd_dst; /* destination address */
235 /* could be followed by options */
236};
237
238#define nd_rd_type nd_rd_hdr.icmp6_type
239#define nd_rd_code nd_rd_hdr.icmp6_code
240#define nd_rd_cksum nd_rd_hdr.icmp6_cksum
241#define nd_rd_reserved nd_rd_hdr.icmp6_data32[0]
242
243struct nd_opt_hdr { /* Neighbor discovery option header */
244 u_int8_t nd_opt_type;
245 u_int8_t nd_opt_len;
246 /* followed by option specific data*/
247};
248
249#define ND_OPT_SOURCE_LINKADDR 1
250#define ND_OPT_TARGET_LINKADDR 2
251#define ND_OPT_PREFIX_INFORMATION 3
252#define ND_OPT_REDIRECTED_HEADER 4
253#define ND_OPT_MTU 5
254
255struct nd_opt_prefix_info { /* prefix information */
256 u_int8_t nd_opt_pi_type;
257 u_int8_t nd_opt_pi_len;
258 u_int8_t nd_opt_pi_prefix_len;
259 u_int8_t nd_opt_pi_flags_reserved;
260 u_int32_t nd_opt_pi_valid_time;
261 u_int32_t nd_opt_pi_preferred_time;
262 u_int32_t nd_opt_pi_reserved2;
263 struct in6_addr nd_opt_pi_prefix;
264};
265
266#define ND_OPT_PI_FLAG_ONLINK 0x80
267#define ND_OPT_PI_FLAG_AUTO 0x40
268
269struct nd_opt_rd_hdr { /* redirected header */
270 u_int8_t nd_opt_rh_type;
271 u_int8_t nd_opt_rh_len;
272 u_int16_t nd_opt_rh_reserved1;
273 u_int32_t nd_opt_rh_reserved2;
274 /* followed by IP header and data */
275};
276
277struct nd_opt_mtu { /* MTU option */
278 u_int8_t nd_opt_mtu_type;
279 u_int8_t nd_opt_mtu_len;
280 u_int16_t nd_opt_mtu_reserved;
281 u_int32_t nd_opt_mtu_mtu;
282};
283
284/*
285 * icmp6 namelookup
286 */
287
288struct icmp6_namelookup {
289 struct icmp6_hdr icmp6_nl_hdr;
290 u_int64_t icmp6_nl_nonce;
291 u_int32_t icmp6_nl_ttl;
292 /* could be followed by options */
293};
294
295/*
296 * icmp6 node information
297 */
298struct icmp6_nodeinfo {
299 struct icmp6_hdr icmp6_ni_hdr;
300 u_int64_t icmp6_ni_nonce;
301 /* could be followed by reply data */
302};
303
304#define ni_type icmp6_ni_hdr.icmp6_type
305#define ni_code icmp6_ni_hdr.icmp6_code
306#define ni_cksum icmp6_ni_hdr.icmp6_cksum
307#define ni_qtype icmp6_ni_hdr.icmp6_data16[0]
308#define ni_flags icmp6_ni_hdr.icmp6_data16[1]
309
310
311#define NI_QTYPE_NOOP 0 /* NOOP */
312#define NI_QTYPE_SUPTYPES 1 /* Supported Qtypes */
313#define NI_QTYPE_FQDN 2 /* FQDN */
314#define NI_QTYPE_NODEADDR 3 /* Node Addresses. XXX: spec says 2, but it may be a typo... */
315
316#if BYTE_ORDER == BIG_ENDIAN
317#define NI_SUPTYPE_FLAG_COMPRESS 0x1
318#define NI_FQDN_FLAG_VALIDTTL 0x1
319#define NI_NODEADDR_FLAG_LINKLOCAL 0x1
320#define NI_NODEADDR_FLAG_SITELOCAL 0x2
321#define NI_NODEADDR_FLAG_GLOBAL 0x4
322#define NI_NODEADDR_FLAG_ALL 0x8
323#define NI_NODEADDR_FLAG_TRUNCATE 0x10
324#define NI_NODEADDR_FLAG_ANYCAST 0x20 /* just experimental. not in spec */
325#elif BYTE_ORDER == LITTLE_ENDIAN
326#define NI_SUPTYPE_FLAG_COMPRESS 0x0100
327#define NI_FQDN_FLAG_VALIDTTL 0x0100
328#define NI_NODEADDR_FLAG_LINKLOCAL 0x0100
329#define NI_NODEADDR_FLAG_SITELOCAL 0x0200
330#define NI_NODEADDR_FLAG_GLOBAL 0x0400
331#define NI_NODEADDR_FLAG_ALL 0x0800
332#define NI_NODEADDR_FLAG_TRUNCATE 0x1000
333#define NI_NODEADDR_FLAG_ANYCAST 0x2000 /* just experimental. not in spec */
334#endif
335
336struct ni_reply_fqdn {
337 u_int32_t ni_fqdn_ttl; /* TTL */
338 u_int8_t ni_fqdn_namelen; /* length in octets of the FQDN */
339 u_int8_t ni_fqdn_name[3]; /* XXX: alignment */
340};
341
342/*
343 * Router Renumbering. as router-renum-08.txt
344 */
345struct icmp6_router_renum { /* router renumbering header */
346 struct icmp6_hdr rr_hdr;
347 u_int8_t rr_segnum;
348 u_int8_t rr_flags;
349 u_int16_t rr_maxdelay;
350 u_int32_t rr_reserved;
351};
352#define ICMP6_RR_FLAGS_SEGNUM 0x80
353#define ICMP6_RR_FLAGS_TEST 0x40
354#define ICMP6_RR_FLAGS_REQRESULT 0x20
355#define ICMP6_RR_FLAGS_FORCEAPPLY 0x10
356#define ICMP6_RR_FLAGS_SPECSITE 0x08
357#define ICMP6_RR_FLAGS_PREVDONE 0x04
358
359#define rr_type rr_hdr.icmp6_type
360#define rr_code rr_hdr.icmp6_code
361#define rr_cksum rr_hdr.icmp6_cksum
362#define rr_seqnum rr_hdr.icmp6_data32[0]
363
364struct rr_pco_match { /* match prefix part */
365 u_int8_t rpm_code;
366 u_int8_t rpm_len;
367 u_int8_t rpm_ordinal;
368 u_int8_t rpm_matchlen;
369 u_int8_t rpm_minlen;
370 u_int8_t rpm_maxlen;
371 u_int16_t rpm_reserved;
372 struct in6_addr rpm_prefix;
373};
374
375#define RPM_PCO_ADD 1
376#define RPM_PCO_CHANGE 2
377#define RPM_PCO_SETGLOBAL 3
378
379struct rr_pco_use { /* use prefix part */
380 u_int8_t rpu_uselen;
381 u_int8_t rpu_keeplen;
382 u_int8_t rpu_ramask;
383 u_int8_t rpu_raflags;
384 u_int32_t rpu_vltime;
385 u_int32_t rpu_pltime;
386 u_int32_t rpu_flags;
387 struct in6_addr rpu_prefix;
388};
|
391
392#if BYTE_ORDER == BIG_ENDIAN
393#define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000
394#define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000
395#elif BYTE_ORDER == LITTLE_ENDIAN
396#define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80
397#define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40
398#endif
399
400struct rr_result { /* router renumbering result message */
401 u_int16_t rrr_flags;
402 u_int8_t rrr_ordinal;
403 u_int8_t rrr_matchedlen;
404 u_int32_t rrr_ifid;
405 struct in6_addr rrr_prefix;
406};
407#if BYTE_ORDER == BIG_ENDIAN
408#define ICMP6_RR_RESULT_FLAGS_OOB 0x0002
409#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001
410#elif BYTE_ORDER == LITTLE_ENDIAN
411#define ICMP6_RR_RESULT_FLAGS_OOB 0x02
412#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x01
413#endif
414
415/*
416 * icmp6 filter structures.
417 */
418
419struct icmp6_filter {
420 u_int32_t icmp6_filter[8];
421};
422
423#ifdef _KERNEL
424#define ICMP6_FILTER_SETPASSALL(filterp) \
425 { \
426 int i; u_char *p; \
427 p = (u_char *)filterp; \
428 for (i = 0; i < sizeof(struct icmp6_filter); i++) \
429 p[i] = 0xff; \
430 }
431#define ICMP6_FILTER_SETBLOCKALL(filterp) \
432 bzero(filterp, sizeof(struct icmp6_filter))
433#else /* _KERNEL */
434#define ICMP6_FILTER_SETPASSALL(filterp) \
435 memset(filterp, 0xff, sizeof(struct icmp6_filter))
436#define ICMP6_FILTER_SETBLOCKALL(filterp) \
437 memset(filterp, 0x00, sizeof(struct icmp6_filter))
438#endif /* _KERNEL */
439
440#define ICMP6_FILTER_SETPASS(type, filterp) \
441 (((filterp)->icmp6_filter[(type) >> 5]) |= (1 << ((type) & 31)))
442#define ICMP6_FILTER_SETBLOCK(type, filterp) \
443 (((filterp)->icmp6_filter[(type) >> 5]) &= ~(1 << ((type) & 31)))
444#define ICMP6_FILTER_WILLPASS(type, filterp) \
445 ((((filterp)->icmp6_filter[(type) >> 5]) & (1 << ((type) & 31))) != 0)
446#define ICMP6_FILTER_WILLBLOCK(type, filterp) \
447 ((((filterp)->icmp6_filter[(type) >> 5]) & (1 << ((type) & 31))) == 0)
448
449/*
450 * Variables related to this implementation
451 * of the internet control message protocol version 6.
452 */
453struct icmp6stat {
454/* statistics related to icmp6 packets generated */
455 u_long icp6s_error; /* # of calls to icmp6_error */
456 u_long icp6s_canterror; /* no error 'cuz old was icmp */
457 u_long icp6s_toofreq; /* no error 'cuz rate limitation */
458 u_long icp6s_outhist[256];
459/* statistics related to input messages proccesed */
460 u_long icp6s_badcode; /* icmp6_code out of range */
461 u_long icp6s_tooshort; /* packet < sizeof(struct icmp6_hdr) */
462 u_long icp6s_checksum; /* bad checksum */
463 u_long icp6s_badlen; /* calculated bound mismatch */
464 u_long icp6s_reflect; /* number of responses */
465 u_long icp6s_inhist[256];
466};
467
468/*
469 * Names for ICMP sysctl objects
470 */
471#define ICMPV6CTL_STATS 1
472#define ICMPV6CTL_REDIRACCEPT 2 /* accept/process redirects */
473#define ICMPV6CTL_REDIRTIMEOUT 3 /* redirect cache time */
474#define ICMPV6CTL_ERRRATELIMIT 5 /* ICMPv6 error rate limitation */
475#define ICMPV6CTL_ND6_PRUNE 6
476#define ICMPV6CTL_ND6_DELAY 8
477#define ICMPV6CTL_ND6_UMAXTRIES 9
478#define ICMPV6CTL_ND6_MMAXTRIES 10
479#define ICMPV6CTL_ND6_USELOOPBACK 11
480#define ICMPV6CTL_ND6_PROXYALL 12
481#define ICMPV6CTL_MAXID 13
482
483#define ICMPV6CTL_NAMES { \
484 { 0, 0 }, \
485 { 0, 0 }, \
486 { "rediraccept", CTLTYPE_INT }, \
487 { "redirtimeout", CTLTYPE_INT }, \
488 { 0, 0 }, \
489 { "errratelimit", CTLTYPE_INT }, \
490 { "nd6_prune", CTLTYPE_INT }, \
491 { 0, 0 }, \
492 { "nd6_delay", CTLTYPE_INT }, \
493 { "nd6_umaxtries", CTLTYPE_INT }, \
494 { "nd6_mmaxtries", CTLTYPE_INT }, \
495 { "nd6_useloopback", CTLTYPE_INT }, \
496 { "nd6_proxyall", CTLTYPE_INT }, \
497}
498
499#define ICMPV6CTL_VARS { \
500 0, \
501 0, \
502 &icmp6_rediraccept, \
503 &icmp6_redirtimeout, \
504 0, \
505 0, \
506 &icmp6errratelim, \
507 &nd6_prune, \
508 0, \
509 &nd6_delay, \
510 &nd6_umaxtries, \
511 &nd6_mmaxtries, \
512 &nd6_useloopback, \
513 &nd6_proxyall, \
514}
515
516#define RTF_PROBEMTU RTF_PROTO1
517
518#ifdef _KERNEL
519#ifdef SYSCTL_DECL
520SYSCTL_DECL(_net_inet6_icmp6);
521#endif
522# ifdef __STDC__
523struct rtentry;
524struct rttimer;
525struct in6_multi;
526# endif
527void icmp6_init __P((void));
528void icmp6_paramerror __P((struct mbuf *, int));
529void icmp6_error __P((struct mbuf *, int, int, int));
530int icmp6_input __P((struct mbuf **, int *, int));
531void icmp6_fasttimo __P((void));
532void icmp6_reflect __P((struct mbuf *, size_t));
533void icmp6_prepare __P((struct mbuf *));
534void icmp6_redirect_input __P((struct mbuf *, int));
535void icmp6_redirect_output __P((struct mbuf *, struct rtentry *));
536
537/* XXX: is this the right place for these macros? */
538#define icmp6_ifstat_inc(ifp, tag) \
539do { \
540 if ((ifp) && (ifp)->if_index <= if_index \
541 && (ifp)->if_index < icmp6_ifstatmax \
542 && icmp6_ifstat && icmp6_ifstat[(ifp)->if_index]) { \
543 icmp6_ifstat[(ifp)->if_index]->tag++; \
544 } \
545} while (0)
546
547#define icmp6_ifoutstat_inc(ifp, type, code) \
548do { \
549 icmp6_ifstat_inc(ifp, ifs6_out_msg); \
550 if (type < ICMP6_INFOMSG_MASK) \
551 icmp6_ifstat_inc(ifp, ifs6_out_error); \
552 switch(type) { \
553 case ICMP6_DST_UNREACH: \
554 icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \
555 if (code == ICMP6_DST_UNREACH_ADMIN) \
556 icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \
557 break; \
558 case ICMP6_PACKET_TOO_BIG: \
559 icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \
560 break; \
561 case ICMP6_TIME_EXCEEDED: \
562 icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \
563 break; \
564 case ICMP6_PARAM_PROB: \
565 icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \
566 break; \
567 case ICMP6_ECHO_REQUEST: \
568 icmp6_ifstat_inc(ifp, ifs6_out_echo); \
569 break; \
570 case ICMP6_ECHO_REPLY: \
571 icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \
572 break; \
573 case MLD6_LISTENER_QUERY: \
574 icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \
575 break; \
576 case MLD6_LISTENER_REPORT: \
577 icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \
578 break; \
579 case MLD6_LISTENER_DONE: \
580 icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \
581 break; \
582 case ND_ROUTER_SOLICIT: \
583 icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \
584 break; \
585 case ND_ROUTER_ADVERT: \
586 icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \
587 break; \
588 case ND_NEIGHBOR_SOLICIT: \
589 icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \
590 break; \
591 case ND_NEIGHBOR_ADVERT: \
592 icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \
593 break; \
594 case ND_REDIRECT: \
595 icmp6_ifstat_inc(ifp, ifs6_out_redirect); \
596 break; \
597 } \
598} while (0)
599
600extern int icmp6_rediraccept; /* accept/process redirects */
601extern int icmp6_redirtimeout; /* cache time for redirect routes */
602#endif /* _KERNEL */
603
604#endif /* not _NETINET6_ICMPV6_H_ */
605
| 391
392#if BYTE_ORDER == BIG_ENDIAN
393#define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000
394#define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000
395#elif BYTE_ORDER == LITTLE_ENDIAN
396#define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80
397#define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40
398#endif
399
400struct rr_result { /* router renumbering result message */
401 u_int16_t rrr_flags;
402 u_int8_t rrr_ordinal;
403 u_int8_t rrr_matchedlen;
404 u_int32_t rrr_ifid;
405 struct in6_addr rrr_prefix;
406};
407#if BYTE_ORDER == BIG_ENDIAN
408#define ICMP6_RR_RESULT_FLAGS_OOB 0x0002
409#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001
410#elif BYTE_ORDER == LITTLE_ENDIAN
411#define ICMP6_RR_RESULT_FLAGS_OOB 0x02
412#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x01
413#endif
414
415/*
416 * icmp6 filter structures.
417 */
418
419struct icmp6_filter {
420 u_int32_t icmp6_filter[8];
421};
422
423#ifdef _KERNEL
424#define ICMP6_FILTER_SETPASSALL(filterp) \
425 { \
426 int i; u_char *p; \
427 p = (u_char *)filterp; \
428 for (i = 0; i < sizeof(struct icmp6_filter); i++) \
429 p[i] = 0xff; \
430 }
431#define ICMP6_FILTER_SETBLOCKALL(filterp) \
432 bzero(filterp, sizeof(struct icmp6_filter))
433#else /* _KERNEL */
434#define ICMP6_FILTER_SETPASSALL(filterp) \
435 memset(filterp, 0xff, sizeof(struct icmp6_filter))
436#define ICMP6_FILTER_SETBLOCKALL(filterp) \
437 memset(filterp, 0x00, sizeof(struct icmp6_filter))
438#endif /* _KERNEL */
439
440#define ICMP6_FILTER_SETPASS(type, filterp) \
441 (((filterp)->icmp6_filter[(type) >> 5]) |= (1 << ((type) & 31)))
442#define ICMP6_FILTER_SETBLOCK(type, filterp) \
443 (((filterp)->icmp6_filter[(type) >> 5]) &= ~(1 << ((type) & 31)))
444#define ICMP6_FILTER_WILLPASS(type, filterp) \
445 ((((filterp)->icmp6_filter[(type) >> 5]) & (1 << ((type) & 31))) != 0)
446#define ICMP6_FILTER_WILLBLOCK(type, filterp) \
447 ((((filterp)->icmp6_filter[(type) >> 5]) & (1 << ((type) & 31))) == 0)
448
449/*
450 * Variables related to this implementation
451 * of the internet control message protocol version 6.
452 */
453struct icmp6stat {
454/* statistics related to icmp6 packets generated */
455 u_long icp6s_error; /* # of calls to icmp6_error */
456 u_long icp6s_canterror; /* no error 'cuz old was icmp */
457 u_long icp6s_toofreq; /* no error 'cuz rate limitation */
458 u_long icp6s_outhist[256];
459/* statistics related to input messages proccesed */
460 u_long icp6s_badcode; /* icmp6_code out of range */
461 u_long icp6s_tooshort; /* packet < sizeof(struct icmp6_hdr) */
462 u_long icp6s_checksum; /* bad checksum */
463 u_long icp6s_badlen; /* calculated bound mismatch */
464 u_long icp6s_reflect; /* number of responses */
465 u_long icp6s_inhist[256];
466};
467
468/*
469 * Names for ICMP sysctl objects
470 */
471#define ICMPV6CTL_STATS 1
472#define ICMPV6CTL_REDIRACCEPT 2 /* accept/process redirects */
473#define ICMPV6CTL_REDIRTIMEOUT 3 /* redirect cache time */
474#define ICMPV6CTL_ERRRATELIMIT 5 /* ICMPv6 error rate limitation */
475#define ICMPV6CTL_ND6_PRUNE 6
476#define ICMPV6CTL_ND6_DELAY 8
477#define ICMPV6CTL_ND6_UMAXTRIES 9
478#define ICMPV6CTL_ND6_MMAXTRIES 10
479#define ICMPV6CTL_ND6_USELOOPBACK 11
480#define ICMPV6CTL_ND6_PROXYALL 12
481#define ICMPV6CTL_MAXID 13
482
483#define ICMPV6CTL_NAMES { \
484 { 0, 0 }, \
485 { 0, 0 }, \
486 { "rediraccept", CTLTYPE_INT }, \
487 { "redirtimeout", CTLTYPE_INT }, \
488 { 0, 0 }, \
489 { "errratelimit", CTLTYPE_INT }, \
490 { "nd6_prune", CTLTYPE_INT }, \
491 { 0, 0 }, \
492 { "nd6_delay", CTLTYPE_INT }, \
493 { "nd6_umaxtries", CTLTYPE_INT }, \
494 { "nd6_mmaxtries", CTLTYPE_INT }, \
495 { "nd6_useloopback", CTLTYPE_INT }, \
496 { "nd6_proxyall", CTLTYPE_INT }, \
497}
498
499#define ICMPV6CTL_VARS { \
500 0, \
501 0, \
502 &icmp6_rediraccept, \
503 &icmp6_redirtimeout, \
504 0, \
505 0, \
506 &icmp6errratelim, \
507 &nd6_prune, \
508 0, \
509 &nd6_delay, \
510 &nd6_umaxtries, \
511 &nd6_mmaxtries, \
512 &nd6_useloopback, \
513 &nd6_proxyall, \
514}
515
516#define RTF_PROBEMTU RTF_PROTO1
517
518#ifdef _KERNEL
519#ifdef SYSCTL_DECL
520SYSCTL_DECL(_net_inet6_icmp6);
521#endif
522# ifdef __STDC__
523struct rtentry;
524struct rttimer;
525struct in6_multi;
526# endif
527void icmp6_init __P((void));
528void icmp6_paramerror __P((struct mbuf *, int));
529void icmp6_error __P((struct mbuf *, int, int, int));
530int icmp6_input __P((struct mbuf **, int *, int));
531void icmp6_fasttimo __P((void));
532void icmp6_reflect __P((struct mbuf *, size_t));
533void icmp6_prepare __P((struct mbuf *));
534void icmp6_redirect_input __P((struct mbuf *, int));
535void icmp6_redirect_output __P((struct mbuf *, struct rtentry *));
536
537/* XXX: is this the right place for these macros? */
538#define icmp6_ifstat_inc(ifp, tag) \
539do { \
540 if ((ifp) && (ifp)->if_index <= if_index \
541 && (ifp)->if_index < icmp6_ifstatmax \
542 && icmp6_ifstat && icmp6_ifstat[(ifp)->if_index]) { \
543 icmp6_ifstat[(ifp)->if_index]->tag++; \
544 } \
545} while (0)
546
547#define icmp6_ifoutstat_inc(ifp, type, code) \
548do { \
549 icmp6_ifstat_inc(ifp, ifs6_out_msg); \
550 if (type < ICMP6_INFOMSG_MASK) \
551 icmp6_ifstat_inc(ifp, ifs6_out_error); \
552 switch(type) { \
553 case ICMP6_DST_UNREACH: \
554 icmp6_ifstat_inc(ifp, ifs6_out_dstunreach); \
555 if (code == ICMP6_DST_UNREACH_ADMIN) \
556 icmp6_ifstat_inc(ifp, ifs6_out_adminprohib); \
557 break; \
558 case ICMP6_PACKET_TOO_BIG: \
559 icmp6_ifstat_inc(ifp, ifs6_out_pkttoobig); \
560 break; \
561 case ICMP6_TIME_EXCEEDED: \
562 icmp6_ifstat_inc(ifp, ifs6_out_timeexceed); \
563 break; \
564 case ICMP6_PARAM_PROB: \
565 icmp6_ifstat_inc(ifp, ifs6_out_paramprob); \
566 break; \
567 case ICMP6_ECHO_REQUEST: \
568 icmp6_ifstat_inc(ifp, ifs6_out_echo); \
569 break; \
570 case ICMP6_ECHO_REPLY: \
571 icmp6_ifstat_inc(ifp, ifs6_out_echoreply); \
572 break; \
573 case MLD6_LISTENER_QUERY: \
574 icmp6_ifstat_inc(ifp, ifs6_out_mldquery); \
575 break; \
576 case MLD6_LISTENER_REPORT: \
577 icmp6_ifstat_inc(ifp, ifs6_out_mldreport); \
578 break; \
579 case MLD6_LISTENER_DONE: \
580 icmp6_ifstat_inc(ifp, ifs6_out_mlddone); \
581 break; \
582 case ND_ROUTER_SOLICIT: \
583 icmp6_ifstat_inc(ifp, ifs6_out_routersolicit); \
584 break; \
585 case ND_ROUTER_ADVERT: \
586 icmp6_ifstat_inc(ifp, ifs6_out_routeradvert); \
587 break; \
588 case ND_NEIGHBOR_SOLICIT: \
589 icmp6_ifstat_inc(ifp, ifs6_out_neighborsolicit); \
590 break; \
591 case ND_NEIGHBOR_ADVERT: \
592 icmp6_ifstat_inc(ifp, ifs6_out_neighboradvert); \
593 break; \
594 case ND_REDIRECT: \
595 icmp6_ifstat_inc(ifp, ifs6_out_redirect); \
596 break; \
597 } \
598} while (0)
599
600extern int icmp6_rediraccept; /* accept/process redirects */
601extern int icmp6_redirtimeout; /* cache time for redirect routes */
602#endif /* _KERNEL */
603
604#endif /* not _NETINET6_ICMPV6_H_ */
605
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