1#ifndef _NETINET_ICMP6_H
2#define _NETINET_ICMP6_H
3
4#ifdef __cplusplus
5extern "C" {
6#endif
7
8#include <stdint.h>
9#include <string.h>
10#include <sys/types.h>
11#include <netinet/in.h>
12
13#define ICMP6_FILTER 1
14
15#define ICMP6_FILTER_BLOCK 1
16#define ICMP6_FILTER_PASS 2
17#define ICMP6_FILTER_BLOCKOTHERS 3
18#define ICMP6_FILTER_PASSONLY 4
19
20struct icmp6_filter {
21 uint32_t icmp6_filt[8];
22};
23
24struct icmp6_hdr {
25 uint8_t icmp6_type;
26 uint8_t icmp6_code;
27 uint16_t icmp6_cksum;
28 union {
29 uint32_t icmp6_un_data32[1];
30 uint16_t icmp6_un_data16[2];
31 uint8_t icmp6_un_data8[4];
32 } icmp6_dataun;
33};
34
35#define icmp6_data32 icmp6_dataun.icmp6_un_data32
36#define icmp6_data16 icmp6_dataun.icmp6_un_data16
37#define icmp6_data8 icmp6_dataun.icmp6_un_data8
38#define icmp6_pptr icmp6_data32[0]
39#define icmp6_mtu icmp6_data32[0]
40#define icmp6_id icmp6_data16[0]
41#define icmp6_seq icmp6_data16[1]
42#define icmp6_maxdelay icmp6_data16[0]
43
44#define ICMP6_DST_UNREACH 1
45#define ICMP6_PACKET_TOO_BIG 2
46#define ICMP6_TIME_EXCEEDED 3
47#define ICMP6_PARAM_PROB 4
48
49#define ICMP6_INFOMSG_MASK 0x80
50
51#define ICMP6_ECHO_REQUEST 128
52#define ICMP6_ECHO_REPLY 129
53#define MLD_LISTENER_QUERY 130
54#define MLD_LISTENER_REPORT 131
55#define MLD_LISTENER_REDUCTION 132
56
57#define ICMP6_DST_UNREACH_NOROUTE 0
58#define ICMP6_DST_UNREACH_ADMIN 1
59#define ICMP6_DST_UNREACH_BEYONDSCOPE 2
60#define ICMP6_DST_UNREACH_ADDR 3
61#define ICMP6_DST_UNREACH_NOPORT 4
62
63#define ICMP6_TIME_EXCEED_TRANSIT 0
64#define ICMP6_TIME_EXCEED_REASSEMBLY 1
65
66#define ICMP6_PARAMPROB_HEADER 0
67#define ICMP6_PARAMPROB_NEXTHEADER 1
68#define ICMP6_PARAMPROB_OPTION 2
69
70#define ICMP6_FILTER_WILLPASS(type, filterp) \
71 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0)
72
73#define ICMP6_FILTER_WILLBLOCK(type, filterp) \
74 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0)
75
76#define ICMP6_FILTER_SETPASS(type, filterp) \
77 ((((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31))))
78
79#define ICMP6_FILTER_SETBLOCK(type, filterp) \
80 ((((filterp)->icmp6_filt[(type) >> 5]) |= (1 << ((type) & 31))))
81
82#define ICMP6_FILTER_SETPASSALL(filterp) \
83 memset (filterp, 0, sizeof (struct icmp6_filter));
84
85#define ICMP6_FILTER_SETBLOCKALL(filterp) \
86 memset (filterp, 0xFF, sizeof (struct icmp6_filter));
87
88#define ND_ROUTER_SOLICIT 133
89#define ND_ROUTER_ADVERT 134
90#define ND_NEIGHBOR_SOLICIT 135
91#define ND_NEIGHBOR_ADVERT 136
92#define ND_REDIRECT 137
93
94struct nd_router_solicit {
95 struct icmp6_hdr nd_rs_hdr;
96};
97
98#define nd_rs_type nd_rs_hdr.icmp6_type
99#define nd_rs_code nd_rs_hdr.icmp6_code
100#define nd_rs_cksum nd_rs_hdr.icmp6_cksum
101#define nd_rs_reserved nd_rs_hdr.icmp6_data32[0]
102
103struct nd_router_advert {
104 struct icmp6_hdr nd_ra_hdr;
105 uint32_t nd_ra_reachable;
106 uint32_t nd_ra_retransmit;
107};
108
109#define nd_ra_type nd_ra_hdr.icmp6_type
110#define nd_ra_code nd_ra_hdr.icmp6_code
111#define nd_ra_cksum nd_ra_hdr.icmp6_cksum
112#define nd_ra_curhoplimit nd_ra_hdr.icmp6_data8[0]
113#define nd_ra_flags_reserved nd_ra_hdr.icmp6_data8[1]
114#define ND_RA_FLAG_MANAGED 0x80
115#define ND_RA_FLAG_OTHER 0x40
116#define ND_RA_FLAG_HOME_AGENT 0x20
117#define nd_ra_router_lifetime nd_ra_hdr.icmp6_data16[1]
118
119struct nd_neighbor_solicit {
120 struct icmp6_hdr nd_ns_hdr;
121 struct in6_addr nd_ns_target;
122};
123
124#define nd_ns_type nd_ns_hdr.icmp6_type
125#define nd_ns_code nd_ns_hdr.icmp6_code
126#define nd_ns_cksum nd_ns_hdr.icmp6_cksum
127#define nd_ns_reserved nd_ns_hdr.icmp6_data32[0]
128
129struct nd_neighbor_advert {
130 struct icmp6_hdr nd_na_hdr;
131 struct in6_addr nd_na_target;
132};
133
134#define nd_na_type nd_na_hdr.icmp6_type
135#define nd_na_code nd_na_hdr.icmp6_code
136#define nd_na_cksum nd_na_hdr.icmp6_cksum
137#define nd_na_flags_reserved nd_na_hdr.icmp6_data32[0]
138#if __BYTE_ORDER == __BIG_ENDIAN
139#define ND_NA_FLAG_ROUTER 0x80000000
140#define ND_NA_FLAG_SOLICITED 0x40000000
141#define ND_NA_FLAG_OVERRIDE 0x20000000
142#else
143#define ND_NA_FLAG_ROUTER 0x00000080
144#define ND_NA_FLAG_SOLICITED 0x00000040
145#define ND_NA_FLAG_OVERRIDE 0x00000020
146#endif
147
148struct nd_redirect {
149 struct icmp6_hdr nd_rd_hdr;
150 struct in6_addr nd_rd_target;
151 struct in6_addr nd_rd_dst;
152};
153
154#define nd_rd_type nd_rd_hdr.icmp6_type
155#define nd_rd_code nd_rd_hdr.icmp6_code
156#define nd_rd_cksum nd_rd_hdr.icmp6_cksum
157#define nd_rd_reserved nd_rd_hdr.icmp6_data32[0]
158
159struct nd_opt_hdr {
160 uint8_t nd_opt_type;
161 uint8_t nd_opt_len;
162};
163
164#define ND_OPT_SOURCE_LINKADDR 1
165#define ND_OPT_TARGET_LINKADDR 2
166#define ND_OPT_PREFIX_INFORMATION 3
167#define ND_OPT_REDIRECTED_HEADER 4
168#define ND_OPT_MTU 5
169#define ND_OPT_RTR_ADV_INTERVAL 7
170#define ND_OPT_HOME_AGENT_INFO 8
171
172struct nd_opt_prefix_info {
173 uint8_t nd_opt_pi_type;
174 uint8_t nd_opt_pi_len;
175 uint8_t nd_opt_pi_prefix_len;
176 uint8_t nd_opt_pi_flags_reserved;
177 uint32_t nd_opt_pi_valid_time;
178 uint32_t nd_opt_pi_preferred_time;
179 uint32_t nd_opt_pi_reserved2;
180 struct in6_addr nd_opt_pi_prefix;
181};
182
183#define ND_OPT_PI_FLAG_ONLINK 0x80
184#define ND_OPT_PI_FLAG_AUTO 0x40
185#define ND_OPT_PI_FLAG_RADDR 0x20
186
187struct nd_opt_rd_hdr {
188 uint8_t nd_opt_rh_type;
189 uint8_t nd_opt_rh_len;
190 uint16_t nd_opt_rh_reserved1;
191 uint32_t nd_opt_rh_reserved2;
192};
193
194struct nd_opt_mtu {
195 uint8_t nd_opt_mtu_type;
196 uint8_t nd_opt_mtu_len;
197 uint16_t nd_opt_mtu_reserved;
198 uint32_t nd_opt_mtu_mtu;
199};
200
201struct mld_hdr {
202 struct icmp6_hdr mld_icmp6_hdr;
203 struct in6_addr mld_addr;
204};
205
206#define mld_type mld_icmp6_hdr.icmp6_type
207#define mld_code mld_icmp6_hdr.icmp6_code
208#define mld_cksum mld_icmp6_hdr.icmp6_cksum
209#define mld_maxdelay mld_icmp6_hdr.icmp6_data16[0]
210#define mld_reserved mld_icmp6_hdr.icmp6_data16[1]
211
212#define ICMP6_ROUTER_RENUMBERING 138
213
214struct icmp6_router_renum {
215 struct icmp6_hdr rr_hdr;
216 uint8_t rr_segnum;
217 uint8_t rr_flags;
218 uint16_t rr_maxdelay;
219 uint32_t rr_reserved;
220};
221
222#define rr_type rr_hdr.icmp6_type
223#define rr_code rr_hdr.icmp6_code
224#define rr_cksum rr_hdr.icmp6_cksum
225#define rr_seqnum rr_hdr.icmp6_data32[0]
226
227#define ICMP6_RR_FLAGS_TEST 0x80
228#define ICMP6_RR_FLAGS_REQRESULT 0x40
229#define ICMP6_RR_FLAGS_FORCEAPPLY 0x20
230#define ICMP6_RR_FLAGS_SPECSITE 0x10
231#define ICMP6_RR_FLAGS_PREVDONE 0x08
232
233struct rr_pco_match {
234 uint8_t rpm_code;
235 uint8_t rpm_len;
236 uint8_t rpm_ordinal;
237 uint8_t rpm_matchlen;
238 uint8_t rpm_minlen;
239 uint8_t rpm_maxlen;
240 uint16_t rpm_reserved;
241 struct in6_addr rpm_prefix;
242};
243
244#define RPM_PCO_ADD 1
245#define RPM_PCO_CHANGE 2
246#define RPM_PCO_SETGLOBAL 3
247
248struct rr_pco_use {
249 uint8_t rpu_uselen;
250 uint8_t rpu_keeplen;
251 uint8_t rpu_ramask;
252 uint8_t rpu_raflags;
253 uint32_t rpu_vltime;
254 uint32_t rpu_pltime;
255 uint32_t rpu_flags;
256 struct in6_addr rpu_prefix;
257};
258
259#define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK 0x20
260#define ICMP6_RR_PCOUSE_RAFLAGS_AUTO 0x10
261
262#if __BYTE_ORDER == __BIG_ENDIAN
263#define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000
264#define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000
265#else
266#define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80
267#define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40
268#endif
269
270struct rr_result {
271 uint16_t rrr_flags;
272 uint8_t rrr_ordinal;
273 uint8_t rrr_matchedlen;
274 uint32_t rrr_ifid;
275 struct in6_addr rrr_prefix;
276};
277
278#if __BYTE_ORDER == __BIG_ENDIAN
279#define ICMP6_RR_RESULT_FLAGS_OOB 0x0002
280#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001
281#else
282#define ICMP6_RR_RESULT_FLAGS_OOB 0x0200
283#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0100
284#endif
285
286struct nd_opt_adv_interval {
287 uint8_t nd_opt_adv_interval_type;
288 uint8_t nd_opt_adv_interval_len;
289 uint16_t nd_opt_adv_interval_reserved;
290 uint32_t nd_opt_adv_interval_ival;
291};
292
293struct nd_opt_home_agent_info {
294 uint8_t nd_opt_home_agent_info_type;
295 uint8_t nd_opt_home_agent_info_len;
296 uint16_t nd_opt_home_agent_info_reserved;
297 uint16_t nd_opt_home_agent_info_preference;
298 uint16_t nd_opt_home_agent_info_lifetime;
299};
300
301#ifdef __cplusplus
302}
303#endif
304
305#endif