summaryrefslogtreecommitdiff
path: root/include/netinet/in.h
blob: 192679a674b94da57e1bf4395b207445157474d2 (plain) (blame)
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
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
#ifndef	_NETINET_IN_H
#define	_NETINET_IN_H

#ifdef __cplusplus
extern "C" {
#endif

#include <features.h>
#include <inttypes.h>
#include <sys/socket.h>

typedef uint16_t in_port_t;
typedef uint32_t in_addr_t;
struct in_addr { in_addr_t s_addr; };

struct sockaddr_in {
	sa_family_t sin_family;
	in_port_t sin_port;
	struct in_addr sin_addr;
	uint8_t sin_zero[8];
};

struct in6_addr {
	union {
		uint8_t __s6_addr[16];
		uint16_t __s6_addr16[8];
		uint32_t __s6_addr32[4];
	} __in6_union;
};
#define s6_addr __in6_union.__s6_addr
#define s6_addr16 __in6_union.__s6_addr16
#define s6_addr32 __in6_union.__s6_addr32

struct sockaddr_in6 {
	sa_family_t     sin6_family;
	in_port_t       sin6_port;
	uint32_t        sin6_flowinfo;
	struct in6_addr sin6_addr;
	uint32_t        sin6_scope_id;
};

struct ipv6_mreq {
	struct in6_addr ipv6mr_multiaddr;
	unsigned        ipv6mr_interface;
};

#define INADDR_ANY        ((in_addr_t) 0x00000000)
#define INADDR_BROADCAST  ((in_addr_t) 0xffffffff)
#define INADDR_NONE       ((in_addr_t) 0xffffffff)
#define INADDR_LOOPBACK   ((in_addr_t) 0x7f000001)

#define INADDR_UNSPEC_GROUP     ((in_addr_t) 0xe0000000)
#define INADDR_ALLHOSTS_GROUP   ((in_addr_t) 0xe0000001)
#define INADDR_ALLRTRS_GROUP    ((in_addr_t) 0xe0000002)
#define INADDR_MAX_LOCAL_GROUP  ((in_addr_t) 0xe00000ff)

#define IN6ADDR_ANY_INIT      { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
#define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }

extern const struct in6_addr in6addr_any, in6addr_loopback;

#undef INET_ADDRSTRLEN
#undef INET6_ADDRSTRLEN
#define INET_ADDRSTRLEN  16
#define INET6_ADDRSTRLEN 46

uint32_t htonl(uint32_t);
uint16_t htons(uint16_t);
uint32_t ntohl(uint32_t);
uint16_t ntohs(uint16_t);

#define IPPORT_RESERVED 1024

#define IPPROTO_IP       0
#define IPPROTO_HOPOPTS  0
#define IPPROTO_ICMP     1
#define IPPROTO_IGMP     2
#define IPPROTO_IPIP     4
#define IPPROTO_TCP      6
#define IPPROTO_EGP      8
#define IPPROTO_PUP      12
#define IPPROTO_UDP      17
#define IPPROTO_IDP      22
#define IPPROTO_TP       29
#define IPPROTO_DCCP     33
#define IPPROTO_IPV6     41
#define IPPROTO_ROUTING  43
#define IPPROTO_FRAGMENT 44
#define IPPROTO_RSVP     46
#define IPPROTO_GRE      47
#define IPPROTO_ESP      50
#define IPPROTO_AH       51
#define IPPROTO_ICMPV6   58
#define IPPROTO_NONE     59
#define IPPROTO_DSTOPTS  60
#define IPPROTO_MTP      92
#define IPPROTO_BEETPH   94
#define IPPROTO_ENCAP    98
#define IPPROTO_PIM      103
#define IPPROTO_COMP     108
#define IPPROTO_SCTP     132
#define IPPROTO_MH       135
#define IPPROTO_UDPLITE  136
#define IPPROTO_MPLS     137
#define IPPROTO_RAW      255
#define IPPROTO_MAX      256

#define IN6_IS_ADDR_UNSPECIFIED(a) \
        (((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
         ((uint32_t *) (a))[2] == 0 && ((uint32_t *) (a))[3] == 0)

#define IN6_IS_ADDR_LOOPBACK(a) \
        (((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
         ((uint32_t *) (a))[2] == 0 && \
         ((uint8_t *) (a))[12] == 0 && ((uint8_t *) (a))[13] == 0 && \
         ((uint8_t *) (a))[14] == 0 && ((uint8_t *) (a))[15] == 1 )

#define IN6_IS_ADDR_MULTICAST(a) (((uint8_t *) (a))[0] == 0xff)

#define IN6_IS_ADDR_LINKLOCAL(a) \
        ((((uint8_t *) (a))[0]) == 0xfe && (((uint8_t *) (a))[1] & 0xc0) == 0x80)

#define IN6_IS_ADDR_SITELOCAL(a) \
        ((((uint8_t *) (a))[0]) == 0xfe && (((uint8_t *) (a))[1] & 0xc0) == 0xc0)

#define IN6_IS_ADDR_V4MAPPED(a) \
        (((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
         ((uint8_t *) (a))[8] == 0 && ((uint8_t *) (a))[9] == 0 && \
         ((uint8_t *) (a))[10] == 0xff && ((uint8_t *) (a))[11] == 0xff)

#define IN6_IS_ADDR_V4COMPAT(a) \
        (((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
         ((uint32_t *) (a))[2] == 0 && ((uint8_t *) (a))[15] > 1)

#define IN6_IS_ADDR_MC_NODELOCAL(a) \
        (IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0x1))

#define IN6_IS_ADDR_MC_LINKLOCAL(a) \
        (IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0x2))

#define IN6_IS_ADDR_MC_SITELOCAL(a) \
        (IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0x5))

#define IN6_IS_ADDR_MC_ORGLOCAL(a) \
        (IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0x8))

#define IN6_IS_ADDR_MC_GLOBAL(a) \
        (IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0xe))

#define __ARE_4_EQUAL(a,b) \
	(!( (0[a]-0[b]) | (1[a]-1[b]) | (2[a]-2[b]) | (3[a]-3[b]) ))
#define IN6_ARE_ADDR_EQUAL(a,b) \
	__ARE_4_EQUAL((const uint32_t *)(a), (const uint32_t *)(b))

#define	IN_CLASSA(a)		((((in_addr_t)(a)) & 0x80000000) == 0)
#define	IN_CLASSA_NET		0xff000000
#define	IN_CLASSA_NSHIFT	24
#define	IN_CLASSA_HOST		(0xffffffff & ~IN_CLASSA_NET)
#define	IN_CLASSA_MAX		128
#define	IN_CLASSB(a)		((((in_addr_t)(a)) & 0xc0000000) == 0x80000000)
#define	IN_CLASSB_NET		0xffff0000
#define	IN_CLASSB_NSHIFT	16
#define	IN_CLASSB_HOST		(0xffffffff & ~IN_CLASSB_NET)
#define	IN_CLASSB_MAX		65536
#define	IN_CLASSC(a)		((((in_addr_t)(a)) & 0xe0000000) == 0xc0000000)
#define	IN_CLASSC_NET		0xffffff00
#define	IN_CLASSC_NSHIFT	8
#define	IN_CLASSC_HOST		(0xffffffff & ~IN_CLASSC_NET)
#define	IN_CLASSD(a)		((((in_addr_t)(a)) & 0xf0000000) == 0xe0000000)
#define	IN_MULTICAST(a)		IN_CLASSD(a)
#define	IN_EXPERIMENTAL(a)	((((in_addr_t)(a)) & 0xe0000000) == 0xe0000000)
#define	IN_BADCLASS(a)		((((in_addr_t)(a)) & 0xf0000000) == 0xf0000000)

#define IN_LOOPBACKNET 127


#define IP_TOS             1
#define IP_TTL             2
#define IP_HDRINCL         3
#define IP_OPTIONS         4
#define IP_ROUTER_ALERT    5
#define IP_RECVOPTS        6
#define IP_RETOPTS         7
#define IP_PKTINFO         8
#define IP_PKTOPTIONS      9
#define IP_PMTUDISC        10
#define IP_MTU_DISCOVER    10
#define IP_RECVERR         11
#define IP_RECVTTL         12
#define IP_RECVTOS         13
#define IP_MTU             14
#define IP_FREEBIND        15
#define IP_IPSEC_POLICY    16
#define IP_XFRM_POLICY     17
#define IP_PASSSEC         18
#define IP_TRANSPARENT     19
#define IP_ORIGDSTADDR     20
#define IP_RECVORIGDSTADDR IP_ORIGDSTADDR
#define IP_MINTTL          21
#define IP_NODEFRAG        22
#define IP_CHECKSUM        23
#define IP_BIND_ADDRESS_NO_PORT 24
#define IP_RECVFRAGSIZE    25
#define IP_MULTICAST_IF    32
#define IP_MULTICAST_TTL   33
#define IP_MULTICAST_LOOP  34
#define IP_ADD_MEMBERSHIP  35
#define IP_DROP_MEMBERSHIP 36
#define IP_UNBLOCK_SOURCE  37
#define IP_BLOCK_SOURCE    38
#define IP_ADD_SOURCE_MEMBERSHIP  39
#define IP_DROP_SOURCE_MEMBERSHIP 40
#define IP_MSFILTER        41
#define IP_MULTICAST_ALL   49
#define IP_UNICAST_IF      50

#define IP_RECVRETOPTS IP_RETOPTS

#define IP_PMTUDISC_DONT   0
#define IP_PMTUDISC_WANT   1
#define IP_PMTUDISC_DO     2
#define IP_PMTUDISC_PROBE  3
#define IP_PMTUDISC_INTERFACE 4
#define IP_PMTUDISC_OMIT   5

#define IP_DEFAULT_MULTICAST_TTL        1
#define IP_DEFAULT_MULTICAST_LOOP       1
#define IP_MAX_MEMBERSHIPS              20

struct ip_opts {
	struct in_addr ip_dst;
	char ip_opts[40];
};

#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)

#define MCAST_JOIN_GROUP   42
#define MCAST_BLOCK_SOURCE 43
#define MCAST_UNBLOCK_SOURCE      44
#define MCAST_LEAVE_GROUP  45
#define MCAST_JOIN_SOURCE_GROUP   46
#define MCAST_LEAVE_SOURCE_GROUP  47
#define MCAST_MSFILTER     48

#define MCAST_EXCLUDE 0
#define MCAST_INCLUDE 1

struct ip_mreq {
	struct in_addr imr_multiaddr;
	struct in_addr imr_interface;
};

struct ip_mreqn {
	struct in_addr imr_multiaddr;
	struct in_addr imr_address;
	int imr_ifindex;
};

struct ip_mreq_source {
	struct in_addr imr_multiaddr;
	struct in_addr imr_interface;
	struct in_addr imr_sourceaddr;
};

struct ip_msfilter {
	struct in_addr imsf_multiaddr;
	struct in_addr imsf_interface;
	uint32_t imsf_fmode;
	uint32_t imsf_numsrc;
	struct in_addr imsf_slist[1];
};
#define IP_MSFILTER_SIZE(numsrc) \
	(sizeof(struct ip_msfilter) - sizeof(struct in_addr) \
	+ (numsrc) * sizeof(struct in_addr))

struct group_req {
	uint32_t gr_interface;
	struct sockaddr_storage gr_group;
};

struct group_source_req {
	uint32_t gsr_interface;
	struct sockaddr_storage gsr_group;
	struct sockaddr_storage gsr_source;
};

struct group_filter {
	uint32_t gf_interface;
	struct sockaddr_storage gf_group;
	uint32_t gf_fmode;
	uint32_t gf_numsrc;
	struct sockaddr_storage gf_slist[1];
};
#define GROUP_FILTER_SIZE(numsrc) \
	(sizeof(struct group_filter) - sizeof(struct sockaddr_storage) \
	+ (numsrc) * sizeof(struct sockaddr_storage))

struct in_pktinfo {
	int ipi_ifindex;
	struct in_addr ipi_spec_dst;
	struct in_addr ipi_addr;
};

struct in6_pktinfo {
	struct in6_addr ipi6_addr;
	unsigned ipi6_ifindex;
};

struct ip6_mtuinfo {
	struct sockaddr_in6 ip6m_addr;
	uint32_t ip6m_mtu;
};
#endif

#define IPV6_ADDRFORM           1
#define IPV6_2292PKTINFO        2
#define IPV6_2292HOPOPTS        3
#define IPV6_2292DSTOPTS        4
#define IPV6_2292RTHDR          5
#define IPV6_2292PKTOPTIONS     6
#define IPV6_CHECKSUM           7
#define IPV6_2292HOPLIMIT       8
#define IPV6_NEXTHOP            9
#define IPV6_AUTHHDR            10
#define IPV6_UNICAST_HOPS       16
#define IPV6_MULTICAST_IF       17
#define IPV6_MULTICAST_HOPS     18
#define IPV6_MULTICAST_LOOP     19
#define IPV6_JOIN_GROUP         20
#define IPV6_LEAVE_GROUP        21
#define IPV6_ROUTER_ALERT       22
#define IPV6_MTU_DISCOVER       23
#define IPV6_MTU                24
#define IPV6_RECVERR            25
#define IPV6_V6ONLY             26
#define IPV6_JOIN_ANYCAST       27
#define IPV6_LEAVE_ANYCAST      28
#define IPV6_IPSEC_POLICY       34
#define IPV6_XFRM_POLICY        35
#define IPV6_HDRINCL            36

#define IPV6_RECVPKTINFO        49
#define IPV6_PKTINFO            50
#define IPV6_RECVHOPLIMIT       51
#define IPV6_HOPLIMIT           52
#define IPV6_RECVHOPOPTS        53
#define IPV6_HOPOPTS            54
#define IPV6_RTHDRDSTOPTS       55
#define IPV6_RECVRTHDR          56
#define IPV6_RTHDR              57
#define IPV6_RECVDSTOPTS        58
#define IPV6_DSTOPTS            59
#define IPV6_RECVPATHMTU        60
#define IPV6_PATHMTU            61
#define IPV6_DONTFRAG           62
#define IPV6_RECVTCLASS         66
#define IPV6_TCLASS             67
#define IPV6_AUTOFLOWLABEL      70
#define IPV6_ADDR_PREFERENCES   72
#define IPV6_MINHOPCOUNT        73
#define IPV6_ORIGDSTADDR        74
#define IPV6_RECVORIGDSTADDR    IPV6_ORIGDSTADDR
#define IPV6_TRANSPARENT        75
#define IPV6_UNICAST_IF         76
#define IPV6_RECVFRAGSIZE       77
#define IPV6_FREEBIND           78

#define IPV6_ADD_MEMBERSHIP     IPV6_JOIN_GROUP
#define IPV6_DROP_MEMBERSHIP    IPV6_LEAVE_GROUP
#define IPV6_RXHOPOPTS          IPV6_HOPOPTS
#define IPV6_RXDSTOPTS          IPV6_DSTOPTS

#define IPV6_PMTUDISC_DONT      0
#define IPV6_PMTUDISC_WANT      1
#define IPV6_PMTUDISC_DO        2
#define IPV6_PMTUDISC_PROBE     3
#define IPV6_PMTUDISC_INTERFACE 4
#define IPV6_PMTUDISC_OMIT      5

#define IPV6_PREFER_SRC_TMP            0x0001
#define IPV6_PREFER_SRC_PUBLIC         0x0002
#define IPV6_PREFER_SRC_PUBTMP_DEFAULT 0x0100
#define IPV6_PREFER_SRC_COA            0x0004
#define IPV6_PREFER_SRC_HOME           0x0400
#define IPV6_PREFER_SRC_CGA            0x0008
#define IPV6_PREFER_SRC_NONCGA         0x0800

#define IPV6_RTHDR_LOOSE        0
#define IPV6_RTHDR_STRICT       1

#define IPV6_RTHDR_TYPE_0       0

#define __UAPI_DEF_IN_ADDR      0
#define __UAPI_DEF_IN_IPPROTO   0
#define __UAPI_DEF_IN_PKTINFO   0
#define __UAPI_DEF_IP_MREQ      0
#define __UAPI_DEF_SOCKADDR_IN  0
#define __UAPI_DEF_IN_CLASS     0
#define __UAPI_DEF_IN6_ADDR     0
#define __UAPI_DEF_IN6_ADDR_ALT 0
#define __UAPI_DEF_SOCKADDR_IN6 0
#define __UAPI_DEF_IPV6_MREQ    0
#define __UAPI_DEF_IPPROTO_V6   0
#define __UAPI_DEF_IPV6_OPTIONS 0
#define __UAPI_DEF_IN6_PKTINFO  0
#define __UAPI_DEF_IP6_MTUINFO  0

#ifdef __cplusplus
}
#endif

#endif