summaryrefslogtreecommitdiffstats
path: root/libc-top-half/musl/include/netinet/icmp6.h
blob: 01269e7d4adc44e3f301fe48310066dba5fca478 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
#ifndef _NETINET_ICMP6_H
#define _NETINET_ICMP6_H

#ifdef __cplusplus
extern "C" {
#endif

#include <stdint.h>
#include <string.h>
#include <sys/types.h>
#include <netinet/in.h>

#define ICMP6_FILTER 1

#define ICMP6_FILTER_BLOCK		1
#define ICMP6_FILTER_PASS		2
#define ICMP6_FILTER_BLOCKOTHERS	3
#define ICMP6_FILTER_PASSONLY		4

struct icmp6_filter {
	uint32_t icmp6_filt[8];
};

struct icmp6_hdr {
	uint8_t     icmp6_type;
	uint8_t     icmp6_code;
	uint16_t    icmp6_cksum;
	union {
		uint32_t  icmp6_un_data32[1];
		uint16_t  icmp6_un_data16[2];
		uint8_t   icmp6_un_data8[4];
	} icmp6_dataun;
};

#define icmp6_data32    icmp6_dataun.icmp6_un_data32
#define icmp6_data16    icmp6_dataun.icmp6_un_data16
#define icmp6_data8     icmp6_dataun.icmp6_un_data8
#define icmp6_pptr      icmp6_data32[0]
#define icmp6_mtu       icmp6_data32[0]
#define icmp6_id        icmp6_data16[0]
#define icmp6_seq       icmp6_data16[1]
#define icmp6_maxdelay  icmp6_data16[0]

#define ICMP6_DST_UNREACH             1
#define ICMP6_PACKET_TOO_BIG          2
#define ICMP6_TIME_EXCEEDED           3
#define ICMP6_PARAM_PROB              4

#define ICMP6_INFOMSG_MASK  0x80

#define ICMP6_ECHO_REQUEST          128
#define ICMP6_ECHO_REPLY            129
#define MLD_LISTENER_QUERY          130
#define MLD_LISTENER_REPORT         131
#define MLD_LISTENER_REDUCTION      132

#define ICMP6_DST_UNREACH_NOROUTE     0
#define ICMP6_DST_UNREACH_ADMIN       1
#define ICMP6_DST_UNREACH_BEYONDSCOPE 2
#define ICMP6_DST_UNREACH_ADDR        3
#define ICMP6_DST_UNREACH_NOPORT      4

#define ICMP6_TIME_EXCEED_TRANSIT     0
#define ICMP6_TIME_EXCEED_REASSEMBLY  1

#define ICMP6_PARAMPROB_HEADER        0
#define ICMP6_PARAMPROB_NEXTHEADER    1
#define ICMP6_PARAMPROB_OPTION        2

#define ICMP6_FILTER_WILLPASS(type, filterp) \
	((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0)

#define ICMP6_FILTER_WILLBLOCK(type, filterp) \
	((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0)

#define ICMP6_FILTER_SETPASS(type, filterp) \
	((((filterp)->icmp6_filt[(type) >> 5]) &= ~(1 << ((type) & 31))))

#define ICMP6_FILTER_SETBLOCK(type, filterp) \
	((((filterp)->icmp6_filt[(type) >> 5]) |=  (1 << ((type) & 31))))

#define ICMP6_FILTER_SETPASSALL(filterp) \
	memset (filterp, 0, sizeof (struct icmp6_filter));

#define ICMP6_FILTER_SETBLOCKALL(filterp) \
	memset (filterp, 0xFF, sizeof (struct icmp6_filter));

#define ND_ROUTER_SOLICIT           133
#define ND_ROUTER_ADVERT            134
#define ND_NEIGHBOR_SOLICIT         135
#define ND_NEIGHBOR_ADVERT          136
#define ND_REDIRECT                 137

struct nd_router_solicit {
	struct icmp6_hdr  nd_rs_hdr;
};

#define nd_rs_type               nd_rs_hdr.icmp6_type
#define nd_rs_code               nd_rs_hdr.icmp6_code
#define nd_rs_cksum              nd_rs_hdr.icmp6_cksum
#define nd_rs_reserved           nd_rs_hdr.icmp6_data32[0]

struct nd_router_advert {
	struct icmp6_hdr  nd_ra_hdr;
	uint32_t   nd_ra_reachable;
	uint32_t   nd_ra_retransmit;
};

#define nd_ra_type               nd_ra_hdr.icmp6_type
#define nd_ra_code               nd_ra_hdr.icmp6_code
#define nd_ra_cksum              nd_ra_hdr.icmp6_cksum
#define nd_ra_curhoplimit        nd_ra_hdr.icmp6_data8[0]
#define nd_ra_flags_reserved     nd_ra_hdr.icmp6_data8[1]
#define ND_RA_FLAG_MANAGED       0x80
#define ND_RA_FLAG_OTHER         0x40
#define ND_RA_FLAG_HOME_AGENT    0x20
#define nd_ra_router_lifetime    nd_ra_hdr.icmp6_data16[1]

struct nd_neighbor_solicit {
	struct icmp6_hdr  nd_ns_hdr;
	struct in6_addr   nd_ns_target;
};

#define nd_ns_type               nd_ns_hdr.icmp6_type
#define nd_ns_code               nd_ns_hdr.icmp6_code
#define nd_ns_cksum              nd_ns_hdr.icmp6_cksum
#define nd_ns_reserved           nd_ns_hdr.icmp6_data32[0]

struct nd_neighbor_advert {
	struct icmp6_hdr  nd_na_hdr;
	struct in6_addr   nd_na_target;
};

#define nd_na_type               nd_na_hdr.icmp6_type
#define nd_na_code               nd_na_hdr.icmp6_code
#define nd_na_cksum              nd_na_hdr.icmp6_cksum
#define nd_na_flags_reserved     nd_na_hdr.icmp6_data32[0]
#if     __BYTE_ORDER == __BIG_ENDIAN
#define ND_NA_FLAG_ROUTER        0x80000000
#define ND_NA_FLAG_SOLICITED     0x40000000
#define ND_NA_FLAG_OVERRIDE      0x20000000
#else
#define ND_NA_FLAG_ROUTER        0x00000080
#define ND_NA_FLAG_SOLICITED     0x00000040
#define ND_NA_FLAG_OVERRIDE      0x00000020
#endif

struct nd_redirect {
	struct icmp6_hdr  nd_rd_hdr;
	struct in6_addr   nd_rd_target;
	struct in6_addr   nd_rd_dst;
};

#define nd_rd_type               nd_rd_hdr.icmp6_type
#define nd_rd_code               nd_rd_hdr.icmp6_code
#define nd_rd_cksum              nd_rd_hdr.icmp6_cksum
#define nd_rd_reserved           nd_rd_hdr.icmp6_data32[0]

struct nd_opt_hdr {
	uint8_t  nd_opt_type;
	uint8_t  nd_opt_len;
};

#define ND_OPT_SOURCE_LINKADDR		1
#define ND_OPT_TARGET_LINKADDR		2
#define ND_OPT_PREFIX_INFORMATION	3
#define ND_OPT_REDIRECTED_HEADER	4
#define ND_OPT_MTU			5
#define ND_OPT_RTR_ADV_INTERVAL		7
#define ND_OPT_HOME_AGENT_INFO		8

struct nd_opt_prefix_info {
	uint8_t   nd_opt_pi_type;
	uint8_t   nd_opt_pi_len;
	uint8_t   nd_opt_pi_prefix_len;
	uint8_t   nd_opt_pi_flags_reserved;
	uint32_t  nd_opt_pi_valid_time;
	uint32_t  nd_opt_pi_preferred_time;
	uint32_t  nd_opt_pi_reserved2;
	struct in6_addr  nd_opt_pi_prefix;
};

#define ND_OPT_PI_FLAG_ONLINK	0x80
#define ND_OPT_PI_FLAG_AUTO	0x40
#define ND_OPT_PI_FLAG_RADDR	0x20

struct nd_opt_rd_hdr {
	uint8_t   nd_opt_rh_type;
	uint8_t   nd_opt_rh_len;
	uint16_t  nd_opt_rh_reserved1;
	uint32_t  nd_opt_rh_reserved2;
};

struct nd_opt_mtu {
	uint8_t   nd_opt_mtu_type;
	uint8_t   nd_opt_mtu_len;
	uint16_t  nd_opt_mtu_reserved;
	uint32_t  nd_opt_mtu_mtu;
};

struct mld_hdr {
	struct icmp6_hdr    mld_icmp6_hdr;
	struct in6_addr     mld_addr;
};

#define mld_type        mld_icmp6_hdr.icmp6_type
#define mld_code        mld_icmp6_hdr.icmp6_code
#define mld_cksum       mld_icmp6_hdr.icmp6_cksum
#define mld_maxdelay    mld_icmp6_hdr.icmp6_data16[0]
#define mld_reserved    mld_icmp6_hdr.icmp6_data16[1]

#define ICMP6_ROUTER_RENUMBERING    138

struct icmp6_router_renum {
	struct icmp6_hdr    rr_hdr;
	uint8_t             rr_segnum;
	uint8_t             rr_flags;
	uint16_t            rr_maxdelay;
	uint32_t            rr_reserved;
};

#define rr_type		rr_hdr.icmp6_type
#define rr_code         rr_hdr.icmp6_code
#define rr_cksum        rr_hdr.icmp6_cksum
#define rr_seqnum       rr_hdr.icmp6_data32[0]

#define ICMP6_RR_FLAGS_TEST             0x80
#define ICMP6_RR_FLAGS_REQRESULT        0x40
#define ICMP6_RR_FLAGS_FORCEAPPLY       0x20
#define ICMP6_RR_FLAGS_SPECSITE         0x10
#define ICMP6_RR_FLAGS_PREVDONE         0x08

struct rr_pco_match {
	uint8_t             rpm_code;
	uint8_t             rpm_len;
	uint8_t             rpm_ordinal;
	uint8_t             rpm_matchlen;
	uint8_t             rpm_minlen;
	uint8_t             rpm_maxlen;
	uint16_t            rpm_reserved;
	struct in6_addr     rpm_prefix;
};

#define RPM_PCO_ADD             1
#define RPM_PCO_CHANGE          2
#define RPM_PCO_SETGLOBAL       3

struct rr_pco_use {
	uint8_t             rpu_uselen;
	uint8_t             rpu_keeplen;
	uint8_t             rpu_ramask;
	uint8_t             rpu_raflags;
	uint32_t            rpu_vltime;
	uint32_t            rpu_pltime;
	uint32_t            rpu_flags;
	struct in6_addr     rpu_prefix;
};

#define ICMP6_RR_PCOUSE_RAFLAGS_ONLINK  0x20
#define ICMP6_RR_PCOUSE_RAFLAGS_AUTO    0x10

#if __BYTE_ORDER == __BIG_ENDIAN
#define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80000000
#define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40000000
#else
#define ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME 0x80
#define ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME 0x40
#endif

struct rr_result {
	uint16_t            rrr_flags;
	uint8_t             rrr_ordinal;
	uint8_t             rrr_matchedlen;
	uint32_t            rrr_ifid;
	struct in6_addr     rrr_prefix;
};

#if __BYTE_ORDER == __BIG_ENDIAN
#define ICMP6_RR_RESULT_FLAGS_OOB       0x0002
#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0001
#else
#define ICMP6_RR_RESULT_FLAGS_OOB       0x0200
#define ICMP6_RR_RESULT_FLAGS_FORBIDDEN 0x0100
#endif

struct nd_opt_adv_interval {
	uint8_t   nd_opt_adv_interval_type;
	uint8_t   nd_opt_adv_interval_len;
	uint16_t  nd_opt_adv_interval_reserved;
	uint32_t  nd_opt_adv_interval_ival;
};

struct nd_opt_home_agent_info {
	uint8_t   nd_opt_home_agent_info_type;
	uint8_t   nd_opt_home_agent_info_len;
	uint16_t  nd_opt_home_agent_info_reserved;
	uint16_t  nd_opt_home_agent_info_preference;
	uint16_t  nd_opt_home_agent_info_lifetime;
};

#ifdef __cplusplus
}
#endif

#endif