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1 | /* Copyright (C) 1991-2022 Free Software Foundation, Inc. |
---|---|
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #ifndef _NETINET_ICMP6_H |
19 | #define _NETINET_ICMP6_H 1 |
20 | |
21 | #include <inttypes.h> |
22 | #include <string.h> |
23 | #include <sys/types.h> |
24 | #include <netinet/in.h> |
25 | |
26 | #define ICMP6_FILTER 1 |
27 | |
28 | #define ICMP6_FILTER_BLOCK 1 |
29 | #define ICMP6_FILTER_PASS 2 |
30 | #define ICMP6_FILTER_BLOCKOTHERS 3 |
31 | #define ICMP6_FILTER_PASSONLY 4 |
32 | |
33 | struct icmp6_filter |
34 | { |
35 | uint32_t icmp6_filt[8]; |
36 | }; |
37 | |
38 | struct icmp6_hdr |
39 | { |
40 | uint8_t icmp6_type; /* type field */ |
41 | uint8_t icmp6_code; /* code field */ |
42 | uint16_t icmp6_cksum; /* checksum field */ |
43 | union |
44 | { |
45 | uint32_t icmp6_un_data32[1]; /* type-specific field */ |
46 | uint16_t icmp6_un_data16[2]; /* type-specific field */ |
47 | uint8_t icmp6_un_data8[4]; /* type-specific field */ |
48 | } icmp6_dataun; |
49 | }; |
50 | |
51 | #define icmp6_data32 icmp6_dataun.icmp6_un_data32 |
52 | #define icmp6_data16 icmp6_dataun.icmp6_un_data16 |
53 | #define icmp6_data8 icmp6_dataun.icmp6_un_data8 |
54 | #define icmp6_pptr icmp6_data32[0] /* parameter prob */ |
55 | #define icmp6_mtu icmp6_data32[0] /* packet too big */ |
56 | #define icmp6_id icmp6_data16[0] /* echo request/reply */ |
57 | #define icmp6_seq icmp6_data16[1] /* echo request/reply */ |
58 | #define icmp6_maxdelay icmp6_data16[0] /* mcast group membership */ |
59 | |
60 | #define ICMP6_DST_UNREACH 1 |
61 | #define ICMP6_PACKET_TOO_BIG 2 |
62 | #define ICMP6_TIME_EXCEEDED 3 |
63 | #define ICMP6_PARAM_PROB 4 |
64 | |
65 | #define ICMP6_INFOMSG_MASK 0x80 /* all informational messages */ |
66 | |
67 | #define ICMP6_ECHO_REQUEST 128 |
68 | #define ICMP6_ECHO_REPLY 129 |
69 | #define MLD_LISTENER_QUERY 130 |
70 | #define MLD_LISTENER_REPORT 131 |
71 | #define MLD_LISTENER_REDUCTION 132 |
72 | #define ICMPV6_EXT_ECHO_REQUEST 160 |
73 | #define ICMPV6_EXT_ECHO_REPLY 161 |
74 | |
75 | #define ICMP6_DST_UNREACH_NOROUTE 0 /* no route to destination */ |
76 | #define ICMP6_DST_UNREACH_ADMIN 1 /* communication with destination */ |
77 | /* administratively prohibited */ |
78 | #define ICMP6_DST_UNREACH_BEYONDSCOPE 2 /* beyond scope of source address */ |
79 | #define ICMP6_DST_UNREACH_ADDR 3 /* address unreachable */ |
80 | #define ICMP6_DST_UNREACH_NOPORT 4 /* bad port */ |
81 | |
82 | #define ICMP6_TIME_EXCEED_TRANSIT 0 /* Hop Limit == 0 in transit */ |
83 | #define ICMP6_TIME_EXCEED_REASSEMBLY 1 /* Reassembly time out */ |
84 | |
85 | #define ICMP6_PARAMPROB_HEADER 0 /* erroneous header field */ |
86 | #define ICMP6_PARAMPROB_NEXTHEADER 1 /* unrecognized Next Header */ |
87 | #define ICMP6_PARAMPROB_OPTION 2 /* unrecognized IPv6 option */ |
88 | |
89 | #define ICMP6_FILTER_WILLPASS(type, filterp) \ |
90 | ((((filterp)->icmp6_filt[(type) >> 5]) & (1U << ((type) & 31))) == 0) |
91 | |
92 | #define ICMP6_FILTER_WILLBLOCK(type, filterp) \ |
93 | ((((filterp)->icmp6_filt[(type) >> 5]) & (1U << ((type) & 31))) != 0) |
94 | |
95 | #define ICMP6_FILTER_SETPASS(type, filterp) \ |
96 | ((((filterp)->icmp6_filt[(type) >> 5]) &= ~(1U << ((type) & 31)))) |
97 | |
98 | #define ICMP6_FILTER_SETBLOCK(type, filterp) \ |
99 | ((((filterp)->icmp6_filt[(type) >> 5]) |= (1U << ((type) & 31)))) |
100 | |
101 | #define ICMP6_FILTER_SETPASSALL(filterp) \ |
102 | memset (filterp, 0, sizeof (struct icmp6_filter)); |
103 | |
104 | #define ICMP6_FILTER_SETBLOCKALL(filterp) \ |
105 | memset (filterp, 0xFF, sizeof (struct icmp6_filter)); |
106 | |
107 | #define ND_ROUTER_SOLICIT 133 |
108 | #define ND_ROUTER_ADVERT 134 |
109 | #define ND_NEIGHBOR_SOLICIT 135 |
110 | #define ND_NEIGHBOR_ADVERT 136 |
111 | #define ND_REDIRECT 137 |
112 | |
113 | struct nd_router_solicit /* router solicitation */ |
114 | { |
115 | struct icmp6_hdr nd_rs_hdr; |
116 | /* could be followed by options */ |
117 | }; |
118 | |
119 | #define nd_rs_type nd_rs_hdr.icmp6_type |
120 | #define nd_rs_code nd_rs_hdr.icmp6_code |
121 | #define nd_rs_cksum nd_rs_hdr.icmp6_cksum |
122 | #define nd_rs_reserved nd_rs_hdr.icmp6_data32[0] |
123 | |
124 | struct nd_router_advert /* router advertisement */ |
125 | { |
126 | struct icmp6_hdr nd_ra_hdr; |
127 | uint32_t nd_ra_reachable; /* reachable time */ |
128 | uint32_t nd_ra_retransmit; /* retransmit timer */ |
129 | /* could be followed by options */ |
130 | }; |
131 | |
132 | #define nd_ra_type nd_ra_hdr.icmp6_type |
133 | #define nd_ra_code nd_ra_hdr.icmp6_code |
134 | #define nd_ra_cksum nd_ra_hdr.icmp6_cksum |
135 | #define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0] |
136 | #define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1] |
137 | #define ND_RA_FLAG_MANAGED 0x80 |
138 | #define ND_RA_FLAG_OTHER 0x40 |
139 | #define ND_RA_FLAG_HOME_AGENT 0x20 |
140 | #define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1] |
141 | |
142 | struct nd_neighbor_solicit /* neighbor solicitation */ |
143 | { |
144 | struct icmp6_hdr nd_ns_hdr; |
145 | struct in6_addr nd_ns_target; /* target address */ |
146 | /* could be followed by options */ |
147 | }; |
148 | |
149 | #define nd_ns_type nd_ns_hdr.icmp6_type |
150 | #define nd_ns_code nd_ns_hdr.icmp6_code |
151 | #define nd_ns_cksum nd_ns_hdr.icmp6_cksum |
152 | #define nd_ns_reserved nd_ns_hdr.icmp6_data32[0] |
153 | |
154 | struct nd_neighbor_advert /* neighbor advertisement */ |
155 | { |
156 | struct icmp6_hdr nd_na_hdr; |
157 | struct in6_addr nd_na_target; /* target address */ |
158 | /* could be followed by options */ |
159 | }; |
160 | |
161 | #define nd_na_type nd_na_hdr.icmp6_type |
162 | #define nd_na_code nd_na_hdr.icmp6_code |
163 | #define nd_na_cksum nd_na_hdr.icmp6_cksum |
164 | #define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0] |
165 | #if __BYTE_ORDER == __BIG_ENDIAN |
166 | #define ND_NA_FLAG_ROUTER 0x80000000 |
167 | #define ND_NA_FLAG_SOLICITED 0x40000000 |
168 | #define ND_NA_FLAG_OVERRIDE 0x20000000 |
169 | #else /* __BYTE_ORDER == __LITTLE_ENDIAN */ |
170 | #define ND_NA_FLAG_ROUTER 0x00000080 |
171 | #define ND_NA_FLAG_SOLICITED 0x00000040 |
172 | #define ND_NA_FLAG_OVERRIDE 0x00000020 |
173 | #endif |
174 | |
175 | struct nd_redirect /* redirect */ |
176 | { |
177 | struct icmp6_hdr nd_rd_hdr; |
178 | struct in6_addr nd_rd_target; /* target address */ |
179 | struct in6_addr nd_rd_dst; /* destination address */ |
180 | /* could be followed by options */ |
181 | }; |
182 | |
183 | #define nd_rd_type nd_rd_hdr.icmp6_type |
184 | #define nd_rd_code nd_rd_hdr.icmp6_code |
185 | #define nd_rd_cksum nd_rd_hdr.icmp6_cksum |
186 | #define nd_rd_reserved nd_rd_hdr.icmp6_data32[0] |
187 | |
188 | struct nd_opt_hdr /* Neighbor discovery option header */ |
189 | { |
190 | uint8_t nd_opt_type; |
191 | uint8_t nd_opt_len; /* in units of 8 octets */ |
192 | /* followed by option specific data */ |
193 | }; |
194 | |
195 | #define ND_OPT_SOURCE_LINKADDR 1 |
196 | #define ND_OPT_TARGET_LINKADDR 2 |
197 | #define ND_OPT_PREFIX_INFORMATION 3 |
198 | #define ND_OPT_REDIRECTED_HEADER 4 |
199 | #define ND_OPT_MTU 5 |
200 | #define ND_OPT_RTR_ADV_INTERVAL 7 |
201 | #define ND_OPT_HOME_AGENT_INFO 8 |
202 | |
203 | struct nd_opt_prefix_info /* prefix information */ |
204 | { |
205 | uint8_t nd_opt_pi_type; |
206 | uint8_t nd_opt_pi_len; |
207 | uint8_t nd_opt_pi_prefix_len; |
208 | uint8_t nd_opt_pi_flags_reserved; |
209 | uint32_t nd_opt_pi_valid_time; |
210 | uint32_t nd_opt_pi_preferred_time; |
211 | uint32_t nd_opt_pi_reserved2; |
212 | struct in6_addr nd_opt_pi_prefix; |
213 | }; |
214 | |
215 | #define ND_OPT_PI_FLAG_ONLINK 0x80 |
216 | #define ND_OPT_PI_FLAG_AUTO 0x40 |
217 | #define ND_OPT_PI_FLAG_RADDR 0x20 |
218 | |
219 | struct nd_opt_rd_hdr /* redirected header */ |
220 | { |
221 | uint8_t nd_opt_rh_type; |
222 | uint8_t nd_opt_rh_len; |
223 | uint16_t nd_opt_rh_reserved1; |
224 | uint32_t nd_opt_rh_reserved2; |
225 | /* followed by IP header and data */ |
226 | }; |
227 | |
228 | struct nd_opt_mtu /* MTU option */ |
229 | { |
230 | uint8_t nd_opt_mtu_type; |
231 | uint8_t nd_opt_mtu_len; |
232 | uint16_t nd_opt_mtu_reserved; |
233 | uint32_t nd_opt_mtu_mtu; |
234 | }; |
235 | |
236 | struct mld_hdr |
237 | { |
238 | struct icmp6_hdr mld_icmp6_hdr; |
239 | struct in6_addr mld_addr; /* multicast address */ |
240 | }; |
241 | |
242 | #define mld_type mld_icmp6_hdr.icmp6_type |
243 | #define mld_code mld_icmp6_hdr.icmp6_code |
244 | #define mld_cksum mld_icmp6_hdr.icmp6_cksum |
245 | #define mld_maxdelay mld_icmp6_hdr.icmp6_data16[0] |
246 | #define mld_reserved mld_icmp6_hdr.icmp6_data16[1] |
247 | |
248 | #define ICMP6_ROUTER_RENUMBERING 138 |
249 | |
250 | struct icmp6_router_renum /* router renumbering header */ |
251 | { |
252 | struct icmp6_hdr rr_hdr; |
253 | uint8_t rr_segnum; |
254 | uint8_t rr_flags; |
255 | uint16_t rr_maxdelay; |
256 | uint32_t rr_reserved; |
257 | }; |
258 | |
259 | #define rr_type rr_hdr.icmp6_type |
260 | #define rr_code rr_hdr.icmp6_code |
261 | #define rr_cksum rr_hdr.icmp6_cksum |
262 | #define rr_seqnum rr_hdr.icmp6_data32[0] |
263 | |
264 | /* Router renumbering flags */ |
265 | #define ICMP6_RR_FLAGS_TEST 0x80 |
266 | #define ICMP6_RR_FLAGS_REQRESULT 0x40 |
267 | #define ICMP6_RR_FLAGS_FORCEAPPLY 0x20 |
268 | #define ICMP6_RR_FLAGS_SPECSITE 0x10 |
269 | #define ICMP6_RR_FLAGS_PREVDONE 0x08 |
270 | |
271 | struct rr_pco_match /* match prefix part */ |
272 | { |
273 | uint8_t rpm_code; |
274 | uint8_t rpm_len; |
275 | uint8_t rpm_ordinal; |
276 | uint8_t rpm_matchlen; |
277 | uint8_t rpm_minlen; |
278 | uint8_t rpm_maxlen; |
279 | uint16_t rpm_reserved; |
280 | struct in6_addr rpm_prefix; |
281 | }; |
282 | |
283 | /* PCO code values */ |
284 | #define RPM_PCO_ADD 1 |
285 | #define RPM_PCO_CHANGE 2 |
286 | #define RPM_PCO_SETGLOBAL 3 |
287 | |
288 | struct rr_pco_use /* use prefix part */ |
289 | { |
290 | uint8_t rpu_uselen; |
291 | uint8_t rpu_keeplen; |
292 | uint8_t rpu_ramask; |
293 | uint8_t rpu_raflags; |
294 | uint32_t rpu_vltime; |
295 | uint32_t rpu_pltime; |
296 | uint32_t rpu_flags; |
297 | struct in6_addr rpu_prefix; |
298 | }; |
299 | |
300 | #define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK 0x20 |
301 | #define ICMP6_RR_PCOUSE_RAFLAGS_AUTO 0x10 |
302 | |
303 | #if __BYTE_ORDER == __BIG_ENDIAN |
304 | # define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000 |
305 | # define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000 |
306 | #elif __BYTE_ORDER == __LITTLE_ENDIAN |
307 | # define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80 |
308 | # define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40 |
309 | #endif |
310 | |
311 | struct rr_result /* router renumbering result message */ |
312 | { |
313 | uint16_t rrr_flags; |
314 | uint8_t rrr_ordinal; |
315 | uint8_t rrr_matchedlen; |
316 | uint32_t rrr_ifid; |
317 | struct in6_addr rrr_prefix; |
318 | }; |
319 | |
320 | #if __BYTE_ORDER == __BIG_ENDIAN |
321 | # define ICMP6_RR_RESULT_FLAGS_OOB 0x0002 |
322 | # define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001 |
323 | #elif __BYTE_ORDER == __LITTLE_ENDIAN |
324 | # define ICMP6_RR_RESULT_FLAGS_OOB 0x0200 |
325 | # define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0100 |
326 | #endif |
327 | |
328 | /* Mobile IPv6 extension: Advertisement Interval. */ |
329 | struct nd_opt_adv_interval |
330 | { |
331 | uint8_t nd_opt_adv_interval_type; |
332 | uint8_t nd_opt_adv_interval_len; |
333 | uint16_t nd_opt_adv_interval_reserved; |
334 | uint32_t nd_opt_adv_interval_ival; |
335 | }; |
336 | |
337 | /* Mobile IPv6 extension: Home Agent Info. */ |
338 | struct nd_opt_home_agent_info |
339 | { |
340 | uint8_t nd_opt_home_agent_info_type; |
341 | uint8_t nd_opt_home_agent_info_len; |
342 | uint16_t nd_opt_home_agent_info_reserved; |
343 | uint16_t nd_opt_home_agent_info_preference; |
344 | uint16_t nd_opt_home_agent_info_lifetime; |
345 | }; |
346 | |
347 | #endif /* netinet/icmpv6.h */ |
348 |
Warning: This file is not a C or C++ file. It does not have highlighting.