1 #ifndef _NETINET_IN_H
2 #define _NETINET_IN_H
3
4 #ifdef __cplusplus
5 extern "C" {
6 #endif
7
8 #include <features.h>
9 #include <inttypes.h>
10 #include <sys/socket.h>
11
12 typedef uint16_t in_port_t;
13 typedef uint32_t in_addr_t;
14 struct in_addr { in_addr_t s_addr; };
15
16 struct sockaddr_in {
17 sa_family_t sin_family;
18 in_port_t sin_port;
19 struct in_addr sin_addr;
20 uint8_t sin_zero[8];
21 };
22
23 struct in6_addr {
24 union {
25 uint8_t __s6_addr[16];
26 uint16_t __s6_addr16[8];
27 uint32_t __s6_addr32[4];
28 } __in6_union;
29 };
30 #define s6_addr __in6_union.__s6_addr
31 #define s6_addr16 __in6_union.__s6_addr16
32 #define s6_addr32 __in6_union.__s6_addr32
33
34 struct sockaddr_in6 {
35 sa_family_t sin6_family;
36 in_port_t sin6_port;
37 uint32_t sin6_flowinfo;
38 struct in6_addr sin6_addr;
39 uint32_t sin6_scope_id;
40 };
41
42 struct ipv6_mreq {
43 struct in6_addr ipv6mr_multiaddr;
44 unsigned ipv6mr_interface;
45 };
46
47 #define INADDR_ANY ((in_addr_t) 0x00000000)
48 #define INADDR_BROADCAST ((in_addr_t) 0xffffffff)
49 #define INADDR_NONE ((in_addr_t) 0xffffffff)
50 #define INADDR_LOOPBACK ((in_addr_t) 0x7f000001)
51 #define INADDR_DUMMY ((in_addr_t) 0xc0000008)
52
53 #define INADDR_UNSPEC_GROUP ((in_addr_t) 0xe0000000)
54 #define INADDR_ALLHOSTS_GROUP ((in_addr_t) 0xe0000001)
55 #define INADDR_ALLRTRS_GROUP ((in_addr_t) 0xe0000002)
56 #define INADDR_ALLSNOOPERS_GROUP ((in_addr_t) 0xe000006a)
57 #define INADDR_MAX_LOCAL_GROUP ((in_addr_t) 0xe00000ff)
58
59 #define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
60 #define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
61
62 extern const struct in6_addr in6addr_any, in6addr_loopback;
63
64 #define INET_ADDRSTRLEN 16
65 #define INET6_ADDRSTRLEN 46
66
67 uint32_t htonl(uint32_t);
68 uint16_t htons(uint16_t);
69 uint32_t ntohl(uint32_t);
70 uint16_t ntohs(uint16_t);
71
72 #define IPPORT_RESERVED 1024
73
74 #define IPPROTO_IP 0
75 #define IPPROTO_HOPOPTS 0
76 #define IPPROTO_ICMP 1
77 #define IPPROTO_IGMP 2
78 #define IPPROTO_IPIP 4
79 #define IPPROTO_TCP 6
80 #define IPPROTO_EGP 8
81 #define IPPROTO_PUP 12
82 #define IPPROTO_UDP 17
83 #define IPPROTO_IDP 22
84 #define IPPROTO_TP 29
85 #define IPPROTO_DCCP 33
86 #define IPPROTO_IPV6 41
87 #define IPPROTO_ROUTING 43
88 #define IPPROTO_FRAGMENT 44
89 #define IPPROTO_RSVP 46
90 #define IPPROTO_GRE 47
91 #define IPPROTO_ESP 50
92 #define IPPROTO_AH 51
93 #define IPPROTO_ICMPV6 58
94 #define IPPROTO_NONE 59
95 #define IPPROTO_DSTOPTS 60
96 #define IPPROTO_MTP 92
97 #define IPPROTO_BEETPH 94
98 #define IPPROTO_ENCAP 98
99 #define IPPROTO_PIM 103
100 #define IPPROTO_COMP 108
101 #define IPPROTO_SCTP 132
102 #define IPPROTO_MH 135
103 #define IPPROTO_UDPLITE 136
104 #define IPPROTO_MPLS 137
105 #define IPPROTO_ETHERNET 143
106 #define IPPROTO_RAW 255
107 #define IPPROTO_MPTCP 262
108 #define IPPROTO_MAX 263
109
110 #define IN6_IS_ADDR_UNSPECIFIED(a) \
111 (((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
112 ((uint32_t *) (a))[2] == 0 && ((uint32_t *) (a))[3] == 0)
113
114 #define IN6_IS_ADDR_LOOPBACK(a) \
115 (((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
116 ((uint32_t *) (a))[2] == 0 && \
117 ((uint8_t *) (a))[12] == 0 && ((uint8_t *) (a))[13] == 0 && \
118 ((uint8_t *) (a))[14] == 0 && ((uint8_t *) (a))[15] == 1 )
119
120 #define IN6_IS_ADDR_MULTICAST(a) (((uint8_t *) (a))[0] == 0xff)
121
122 #define IN6_IS_ADDR_LINKLOCAL(a) \
123 ((((uint8_t *) (a))[0]) == 0xfe && (((uint8_t *) (a))[1] & 0xc0) == 0x80)
124
125 #define IN6_IS_ADDR_SITELOCAL(a) \
126 ((((uint8_t *) (a))[0]) == 0xfe && (((uint8_t *) (a))[1] & 0xc0) == 0xc0)
127
128 #define IN6_IS_ADDR_V4MAPPED(a) \
129 (((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
130 ((uint8_t *) (a))[8] == 0 && ((uint8_t *) (a))[9] == 0 && \
131 ((uint8_t *) (a))[10] == 0xff && ((uint8_t *) (a))[11] == 0xff)
132
133 #define IN6_IS_ADDR_V4COMPAT(a) \
134 (((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
135 ((uint32_t *) (a))[2] == 0 && ((uint8_t *) (a))[15] > 1)
136
137 #define IN6_IS_ADDR_MC_NODELOCAL(a) \
138 (IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0x1))
139
140 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \
141 (IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0x2))
142
143 #define IN6_IS_ADDR_MC_SITELOCAL(a) \
144 (IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0x5))
145
146 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \
147 (IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0x8))
148
149 #define IN6_IS_ADDR_MC_GLOBAL(a) \
150 (IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0xe))
151
152 #define __ARE_4_EQUAL(a,b) \
153 (!( (0[a]-0[b]) | (1[a]-1[b]) | (2[a]-2[b]) | (3[a]-3[b]) ))
154 #define IN6_ARE_ADDR_EQUAL(a,b) \
155 __ARE_4_EQUAL((const uint32_t *)(a), (const uint32_t *)(b))
156
157 #define IN_CLASSA(a) ((((in_addr_t)(a)) & 0x80000000) == 0)
158 #define IN_CLASSA_NET 0xff000000
159 #define IN_CLASSA_NSHIFT 24
160 #define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET)
161 #define IN_CLASSA_MAX 128
162 #define IN_CLASSB(a) ((((in_addr_t)(a)) & 0xc0000000) == 0x80000000)
163 #define IN_CLASSB_NET 0xffff0000
164 #define IN_CLASSB_NSHIFT 16
165 #define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET)
166 #define IN_CLASSB_MAX 65536
167 #define IN_CLASSC(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xc0000000)
168 #define IN_CLASSC_NET 0xffffff00
169 #define IN_CLASSC_NSHIFT 8
170 #define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET)
171 #define IN_CLASSD(a) ((((in_addr_t)(a)) & 0xf0000000) == 0xe0000000)
172 #define IN_MULTICAST(a) IN_CLASSD(a)
173 #define IN_EXPERIMENTAL(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xe0000000)
174 #define IN_BADCLASS(a) ((((in_addr_t)(a)) & 0xf0000000) == 0xf0000000)
175
176 #define IN_LOOPBACKNET 127
177
178
179 #define IP_TOS 1
180 #define IP_TTL 2
181 #define IP_HDRINCL 3
182 #define IP_OPTIONS 4
183 #define IP_ROUTER_ALERT 5
184 #define IP_RECVOPTS 6
185 #define IP_RETOPTS 7
186 #define IP_PKTINFO 8
187 #define IP_PKTOPTIONS 9
188 #define IP_PMTUDISC 10
189 #define IP_MTU_DISCOVER 10
190 #define IP_RECVERR 11
191 #define IP_RECVTTL 12
192 #define IP_RECVTOS 13
193 #define IP_MTU 14
194 #define IP_FREEBIND 15
195 #define IP_IPSEC_POLICY 16
196 #define IP_XFRM_POLICY 17
197 #define IP_PASSSEC 18
198 #define IP_TRANSPARENT 19
199 #define IP_ORIGDSTADDR 20
200 #define IP_RECVORIGDSTADDR IP_ORIGDSTADDR
201 #define IP_MINTTL 21
202 #define IP_NODEFRAG 22
203 #define IP_CHECKSUM 23
204 #define IP_BIND_ADDRESS_NO_PORT 24
205 #define IP_RECVFRAGSIZE 25
206 #define IP_RECVERR_RFC4884 26
207 #define IP_MULTICAST_IF 32
208 #define IP_MULTICAST_TTL 33
209 #define IP_MULTICAST_LOOP 34
210 #define IP_ADD_MEMBERSHIP 35
211 #define IP_DROP_MEMBERSHIP 36
212 #define IP_UNBLOCK_SOURCE 37
213 #define IP_BLOCK_SOURCE 38
214 #define IP_ADD_SOURCE_MEMBERSHIP 39
215 #define IP_DROP_SOURCE_MEMBERSHIP 40
216 #define IP_MSFILTER 41
217 #define IP_MULTICAST_ALL 49
218 #define IP_UNICAST_IF 50
219
220 #define IP_RECVRETOPTS IP_RETOPTS
221
222 #define IP_PMTUDISC_DONT 0
223 #define IP_PMTUDISC_WANT 1
224 #define IP_PMTUDISC_DO 2
225 #define IP_PMTUDISC_PROBE 3
226 #define IP_PMTUDISC_INTERFACE 4
227 #define IP_PMTUDISC_OMIT 5
228
229 #define IP_DEFAULT_MULTICAST_TTL 1
230 #define IP_DEFAULT_MULTICAST_LOOP 1
231 #define IP_MAX_MEMBERSHIPS 20
232
233 struct ip_opts {
234 struct in_addr ip_dst;
235 char ip_opts[40];
236 };
237
238 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
239
240 #define MCAST_JOIN_GROUP 42
241 #define MCAST_BLOCK_SOURCE 43
242 #define MCAST_UNBLOCK_SOURCE 44
243 #define MCAST_LEAVE_GROUP 45
244 #define MCAST_JOIN_SOURCE_GROUP 46
245 #define MCAST_LEAVE_SOURCE_GROUP 47
246 #define MCAST_MSFILTER 48
247
248 #define MCAST_EXCLUDE 0
249 #define MCAST_INCLUDE 1
250
251 struct ip_mreq {
252 struct in_addr imr_multiaddr;
253 struct in_addr imr_interface;
254 };
255
256 struct ip_mreqn {
257 struct in_addr imr_multiaddr;
258 struct in_addr imr_address;
259 int imr_ifindex;
260 };
261
262 struct ip_mreq_source {
263 struct in_addr imr_multiaddr;
264 struct in_addr imr_interface;
265 struct in_addr imr_sourceaddr;
266 };
267
268 struct ip_msfilter {
269 struct in_addr imsf_multiaddr;
270 struct in_addr imsf_interface;
271 uint32_t imsf_fmode;
272 uint32_t imsf_numsrc;
273 struct in_addr imsf_slist[1];
274 };
275 #define IP_MSFILTER_SIZE(numsrc) \
276 (sizeof(struct ip_msfilter) - sizeof(struct in_addr) \
277 + (numsrc) * sizeof(struct in_addr))
278
279 struct group_req {
280 uint32_t gr_interface;
281 struct sockaddr_storage gr_group;
282 };
283
284 struct group_source_req {
285 uint32_t gsr_interface;
286 struct sockaddr_storage gsr_group;
287 struct sockaddr_storage gsr_source;
288 };
289
290 struct group_filter {
291 uint32_t gf_interface;
292 struct sockaddr_storage gf_group;
293 uint32_t gf_fmode;
294 uint32_t gf_numsrc;
295 struct sockaddr_storage gf_slist[1];
296 };
297 #define GROUP_FILTER_SIZE(numsrc) \
298 (sizeof(struct group_filter) - sizeof(struct sockaddr_storage) \
299 + (numsrc) * sizeof(struct sockaddr_storage))
300
301 struct in_pktinfo {
302 int ipi_ifindex;
303 struct in_addr ipi_spec_dst;
304 struct in_addr ipi_addr;
305 };
306
307 struct in6_pktinfo {
308 struct in6_addr ipi6_addr;
309 unsigned ipi6_ifindex;
310 };
311
312 struct ip6_mtuinfo {
313 struct sockaddr_in6 ip6m_addr;
314 uint32_t ip6m_mtu;
315 };
316 #endif
317
318 #define IPV6_ADDRFORM 1
319 #define IPV6_2292PKTINFO 2
320 #define IPV6_2292HOPOPTS 3
321 #define IPV6_2292DSTOPTS 4
322 #define IPV6_2292RTHDR 5
323 #define IPV6_2292PKTOPTIONS 6
324 #define IPV6_CHECKSUM 7
325 #define IPV6_2292HOPLIMIT 8
326 #define IPV6_NEXTHOP 9
327 #define IPV6_AUTHHDR 10
328 #define IPV6_UNICAST_HOPS 16
329 #define IPV6_MULTICAST_IF 17
330 #define IPV6_MULTICAST_HOPS 18
331 #define IPV6_MULTICAST_LOOP 19
332 #define IPV6_JOIN_GROUP 20
333 #define IPV6_LEAVE_GROUP 21
334 #define IPV6_ROUTER_ALERT 22
335 #define IPV6_MTU_DISCOVER 23
336 #define IPV6_MTU 24
337 #define IPV6_RECVERR 25
338 #define IPV6_V6ONLY 26
339 #define IPV6_JOIN_ANYCAST 27
340 #define IPV6_LEAVE_ANYCAST 28
341 #define IPV6_MULTICAST_ALL 29
342 #define IPV6_ROUTER_ALERT_ISOLATE 30
343 #define IPV6_IPSEC_POLICY 34
344 #define IPV6_XFRM_POLICY 35
345 #define IPV6_HDRINCL 36
346
347 #define IPV6_RECVPKTINFO 49
348 #define IPV6_PKTINFO 50
349 #define IPV6_RECVHOPLIMIT 51
350 #define IPV6_HOPLIMIT 52
351 #define IPV6_RECVHOPOPTS 53
352 #define IPV6_HOPOPTS 54
353 #define IPV6_RTHDRDSTOPTS 55
354 #define IPV6_RECVRTHDR 56
355 #define IPV6_RTHDR 57
356 #define IPV6_RECVDSTOPTS 58
357 #define IPV6_DSTOPTS 59
358 #define IPV6_RECVPATHMTU 60
359 #define IPV6_PATHMTU 61
360 #define IPV6_DONTFRAG 62
361 #define IPV6_RECVTCLASS 66
362 #define IPV6_TCLASS 67
363 #define IPV6_AUTOFLOWLABEL 70
364 #define IPV6_ADDR_PREFERENCES 72
365 #define IPV6_MINHOPCOUNT 73
366 #define IPV6_ORIGDSTADDR 74
367 #define IPV6_RECVORIGDSTADDR IPV6_ORIGDSTADDR
368 #define IPV6_TRANSPARENT 75
369 #define IPV6_UNICAST_IF 76
370 #define IPV6_RECVFRAGSIZE 77
371 #define IPV6_FREEBIND 78
372
373 #define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP
374 #define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP
375 #define IPV6_RXHOPOPTS IPV6_HOPOPTS
376 #define IPV6_RXDSTOPTS IPV6_DSTOPTS
377
378 #define IPV6_PMTUDISC_DONT 0
379 #define IPV6_PMTUDISC_WANT 1
380 #define IPV6_PMTUDISC_DO 2
381 #define IPV6_PMTUDISC_PROBE 3
382 #define IPV6_PMTUDISC_INTERFACE 4
383 #define IPV6_PMTUDISC_OMIT 5
384
385 #define IPV6_PREFER_SRC_TMP 0x0001
386 #define IPV6_PREFER_SRC_PUBLIC 0x0002
387 #define IPV6_PREFER_SRC_PUBTMP_DEFAULT 0x0100
388 #define IPV6_PREFER_SRC_COA 0x0004
389 #define IPV6_PREFER_SRC_HOME 0x0400
390 #define IPV6_PREFER_SRC_CGA 0x0008
391 #define IPV6_PREFER_SRC_NONCGA 0x0800
392
393 #define IPV6_RTHDR_LOOSE 0
394 #define IPV6_RTHDR_STRICT 1
395
396 #define IPV6_RTHDR_TYPE_0 0
397
398 #define __UAPI_DEF_IN_ADDR 0
399 #define __UAPI_DEF_IN_IPPROTO 0
400 #define __UAPI_DEF_IN_PKTINFO 0
401 #define __UAPI_DEF_IP_MREQ 0
402 #define __UAPI_DEF_SOCKADDR_IN 0
403 #define __UAPI_DEF_IN_CLASS 0
404 #define __UAPI_DEF_IN6_ADDR 0
405 #define __UAPI_DEF_IN6_ADDR_ALT 0
406 #define __UAPI_DEF_SOCKADDR_IN6 0
407 #define __UAPI_DEF_IPV6_MREQ 0
408 #define __UAPI_DEF_IPPROTO_V6 0
409 #define __UAPI_DEF_IPV6_OPTIONS 0
410 #define __UAPI_DEF_IN6_PKTINFO 0
411 #define __UAPI_DEF_IP6_MTUINFO 0
412
413 #ifdef __cplusplus
414 }
415 #endif
416
417 #endif
418