Line data Source code
1 : /* Copyright (C) 1991-2018 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 : <http://www.gnu.org/licenses/>. */
17 :
18 : #ifndef _NETINET_IN_H
19 : #define _NETINET_IN_H 1
20 :
21 : #include <features.h>
22 : #include <bits/stdint-uintn.h>
23 : #include <sys/socket.h>
24 : #include <bits/types.h>
25 :
26 :
27 : __BEGIN_DECLS
28 :
29 : /* Internet address. */
30 : typedef uint32_t in_addr_t;
31 : struct in_addr
32 : {
33 : in_addr_t s_addr;
34 : };
35 :
36 : /* Get system-specific definitions. */
37 : #include <bits/in.h>
38 :
39 : /* Standard well-defined IP protocols. */
40 : enum
41 : {
42 : IPPROTO_IP = 0, /* Dummy protocol for TCP. */
43 : #define IPPROTO_IP IPPROTO_IP
44 : IPPROTO_ICMP = 1, /* Internet Control Message Protocol. */
45 : #define IPPROTO_ICMP IPPROTO_ICMP
46 : IPPROTO_IGMP = 2, /* Internet Group Management Protocol. */
47 : #define IPPROTO_IGMP IPPROTO_IGMP
48 : IPPROTO_IPIP = 4, /* IPIP tunnels (older KA9Q tunnels use 94). */
49 : #define IPPROTO_IPIP IPPROTO_IPIP
50 : IPPROTO_TCP = 6, /* Transmission Control Protocol. */
51 : #define IPPROTO_TCP IPPROTO_TCP
52 : IPPROTO_EGP = 8, /* Exterior Gateway Protocol. */
53 : #define IPPROTO_EGP IPPROTO_EGP
54 : IPPROTO_PUP = 12, /* PUP protocol. */
55 : #define IPPROTO_PUP IPPROTO_PUP
56 : IPPROTO_UDP = 17, /* User Datagram Protocol. */
57 : #define IPPROTO_UDP IPPROTO_UDP
58 : IPPROTO_IDP = 22, /* XNS IDP protocol. */
59 : #define IPPROTO_IDP IPPROTO_IDP
60 : IPPROTO_TP = 29, /* SO Transport Protocol Class 4. */
61 : #define IPPROTO_TP IPPROTO_TP
62 : IPPROTO_DCCP = 33, /* Datagram Congestion Control Protocol. */
63 : #define IPPROTO_DCCP IPPROTO_DCCP
64 : IPPROTO_IPV6 = 41, /* IPv6 header. */
65 : #define IPPROTO_IPV6 IPPROTO_IPV6
66 : IPPROTO_RSVP = 46, /* Reservation Protocol. */
67 : #define IPPROTO_RSVP IPPROTO_RSVP
68 : IPPROTO_GRE = 47, /* General Routing Encapsulation. */
69 : #define IPPROTO_GRE IPPROTO_GRE
70 : IPPROTO_ESP = 50, /* encapsulating security payload. */
71 : #define IPPROTO_ESP IPPROTO_ESP
72 : IPPROTO_AH = 51, /* authentication header. */
73 : #define IPPROTO_AH IPPROTO_AH
74 : IPPROTO_MTP = 92, /* Multicast Transport Protocol. */
75 : #define IPPROTO_MTP IPPROTO_MTP
76 : IPPROTO_BEETPH = 94, /* IP option pseudo header for BEET. */
77 : #define IPPROTO_BEETPH IPPROTO_BEETPH
78 : IPPROTO_ENCAP = 98, /* Encapsulation Header. */
79 : #define IPPROTO_ENCAP IPPROTO_ENCAP
80 : IPPROTO_PIM = 103, /* Protocol Independent Multicast. */
81 : #define IPPROTO_PIM IPPROTO_PIM
82 : IPPROTO_COMP = 108, /* Compression Header Protocol. */
83 : #define IPPROTO_COMP IPPROTO_COMP
84 : IPPROTO_SCTP = 132, /* Stream Control Transmission Protocol. */
85 : #define IPPROTO_SCTP IPPROTO_SCTP
86 : IPPROTO_UDPLITE = 136, /* UDP-Lite protocol. */
87 : #define IPPROTO_UDPLITE IPPROTO_UDPLITE
88 : IPPROTO_MPLS = 137, /* MPLS in IP. */
89 : #define IPPROTO_MPLS IPPROTO_MPLS
90 : IPPROTO_RAW = 255, /* Raw IP packets. */
91 : #define IPPROTO_RAW IPPROTO_RAW
92 : IPPROTO_MAX
93 : };
94 :
95 : /* If __USE_KERNEL_IPV6_DEFS is 1 then the user has included the kernel
96 : network headers first and we should use those ABI-identical definitions
97 : instead of our own, otherwise 0. */
98 : #if !__USE_KERNEL_IPV6_DEFS
99 : enum
100 : {
101 : IPPROTO_HOPOPTS = 0, /* IPv6 Hop-by-Hop options. */
102 : #define IPPROTO_HOPOPTS IPPROTO_HOPOPTS
103 : IPPROTO_ROUTING = 43, /* IPv6 routing header. */
104 : #define IPPROTO_ROUTING IPPROTO_ROUTING
105 : IPPROTO_FRAGMENT = 44, /* IPv6 fragmentation header. */
106 : #define IPPROTO_FRAGMENT IPPROTO_FRAGMENT
107 : IPPROTO_ICMPV6 = 58, /* ICMPv6. */
108 : #define IPPROTO_ICMPV6 IPPROTO_ICMPV6
109 : IPPROTO_NONE = 59, /* IPv6 no next header. */
110 : #define IPPROTO_NONE IPPROTO_NONE
111 : IPPROTO_DSTOPTS = 60, /* IPv6 destination options. */
112 : #define IPPROTO_DSTOPTS IPPROTO_DSTOPTS
113 : IPPROTO_MH = 135 /* IPv6 mobility header. */
114 : #define IPPROTO_MH IPPROTO_MH
115 : };
116 : #endif /* !__USE_KERNEL_IPV6_DEFS */
117 :
118 : /* Type to represent a port. */
119 : typedef uint16_t in_port_t;
120 :
121 : /* Standard well-known ports. */
122 : enum
123 : {
124 : IPPORT_ECHO = 7, /* Echo service. */
125 : IPPORT_DISCARD = 9, /* Discard transmissions service. */
126 : IPPORT_SYSTAT = 11, /* System status service. */
127 : IPPORT_DAYTIME = 13, /* Time of day service. */
128 : IPPORT_NETSTAT = 15, /* Network status service. */
129 : IPPORT_FTP = 21, /* File Transfer Protocol. */
130 : IPPORT_TELNET = 23, /* Telnet protocol. */
131 : IPPORT_SMTP = 25, /* Simple Mail Transfer Protocol. */
132 : IPPORT_TIMESERVER = 37, /* Timeserver service. */
133 : IPPORT_NAMESERVER = 42, /* Domain Name Service. */
134 : IPPORT_WHOIS = 43, /* Internet Whois service. */
135 : IPPORT_MTP = 57,
136 :
137 : IPPORT_TFTP = 69, /* Trivial File Transfer Protocol. */
138 : IPPORT_RJE = 77,
139 : IPPORT_FINGER = 79, /* Finger service. */
140 : IPPORT_TTYLINK = 87,
141 : IPPORT_SUPDUP = 95, /* SUPDUP protocol. */
142 :
143 :
144 : IPPORT_EXECSERVER = 512, /* execd service. */
145 : IPPORT_LOGINSERVER = 513, /* rlogind service. */
146 : IPPORT_CMDSERVER = 514,
147 : IPPORT_EFSSERVER = 520,
148 :
149 : /* UDP ports. */
150 : IPPORT_BIFFUDP = 512,
151 : IPPORT_WHOSERVER = 513,
152 : IPPORT_ROUTESERVER = 520,
153 :
154 : /* Ports less than this value are reserved for privileged processes. */
155 : IPPORT_RESERVED = 1024,
156 :
157 : /* Ports greater this value are reserved for (non-privileged) servers. */
158 : IPPORT_USERRESERVED = 5000
159 : };
160 :
161 : /* Definitions of the bits in an Internet address integer.
162 :
163 : On subnets, host and network parts are found according to
164 : the subnet mask, not these masks. */
165 :
166 : #define IN_CLASSA(a) ((((in_addr_t)(a)) & 0x80000000) == 0)
167 : #define IN_CLASSA_NET 0xff000000
168 : #define IN_CLASSA_NSHIFT 24
169 : #define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET)
170 : #define IN_CLASSA_MAX 128
171 :
172 : #define IN_CLASSB(a) ((((in_addr_t)(a)) & 0xc0000000) == 0x80000000)
173 : #define IN_CLASSB_NET 0xffff0000
174 : #define IN_CLASSB_NSHIFT 16
175 : #define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET)
176 : #define IN_CLASSB_MAX 65536
177 :
178 : #define IN_CLASSC(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xc0000000)
179 : #define IN_CLASSC_NET 0xffffff00
180 : #define IN_CLASSC_NSHIFT 8
181 : #define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET)
182 :
183 : #define IN_CLASSD(a) ((((in_addr_t)(a)) & 0xf0000000) == 0xe0000000)
184 : #define IN_MULTICAST(a) IN_CLASSD(a)
185 :
186 : #define IN_EXPERIMENTAL(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xe0000000)
187 : #define IN_BADCLASS(a) ((((in_addr_t)(a)) & 0xf0000000) == 0xf0000000)
188 :
189 : /* Address to accept any incoming messages. */
190 : #define INADDR_ANY ((in_addr_t) 0x00000000)
191 : /* Address to send to all hosts. */
192 : #define INADDR_BROADCAST ((in_addr_t) 0xffffffff)
193 : /* Address indicating an error return. */
194 : #define INADDR_NONE ((in_addr_t) 0xffffffff)
195 :
196 : /* Network number for local host loopback. */
197 : #define IN_LOOPBACKNET 127
198 : /* Address to loopback in software to local host. */
199 : #ifndef INADDR_LOOPBACK
200 : # define INADDR_LOOPBACK ((in_addr_t) 0x7f000001) /* Inet 127.0.0.1. */
201 : #endif
202 :
203 : /* Defines for Multicast INADDR. */
204 : #define INADDR_UNSPEC_GROUP ((in_addr_t) 0xe0000000) /* 224.0.0.0 */
205 : #define INADDR_ALLHOSTS_GROUP ((in_addr_t) 0xe0000001) /* 224.0.0.1 */
206 : #define INADDR_ALLRTRS_GROUP ((in_addr_t) 0xe0000002) /* 224.0.0.2 */
207 : #define INADDR_MAX_LOCAL_GROUP ((in_addr_t) 0xe00000ff) /* 224.0.0.255 */
208 :
209 : #if !__USE_KERNEL_IPV6_DEFS
210 : /* IPv6 address */
211 : struct in6_addr
212 : {
213 : union
214 : {
215 : uint8_t __u6_addr8[16];
216 : uint16_t __u6_addr16[8];
217 : uint32_t __u6_addr32[4];
218 : } __in6_u;
219 : #define s6_addr __in6_u.__u6_addr8
220 : #ifdef __USE_MISC
221 : # define s6_addr16 __in6_u.__u6_addr16
222 : # define s6_addr32 __in6_u.__u6_addr32
223 : #endif
224 : };
225 : #endif /* !__USE_KERNEL_IPV6_DEFS */
226 :
227 : extern const struct in6_addr in6addr_any; /* :: */
228 : extern const struct in6_addr in6addr_loopback; /* ::1 */
229 : #define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
230 : #define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
231 :
232 : #define INET_ADDRSTRLEN 16
233 : #define INET6_ADDRSTRLEN 46
234 :
235 :
236 : /* Structure describing an Internet socket address. */
237 : struct sockaddr_in
238 : {
239 : __SOCKADDR_COMMON (sin_);
240 : in_port_t sin_port; /* Port number. */
241 : struct in_addr sin_addr; /* Internet address. */
242 :
243 : /* Pad to size of `struct sockaddr'. */
244 : unsigned char sin_zero[sizeof (struct sockaddr) -
245 : __SOCKADDR_COMMON_SIZE -
246 : sizeof (in_port_t) -
247 : sizeof (struct in_addr)];
248 : };
249 :
250 : #if !__USE_KERNEL_IPV6_DEFS
251 : /* Ditto, for IPv6. */
252 : struct sockaddr_in6
253 : {
254 : __SOCKADDR_COMMON (sin6_);
255 : in_port_t sin6_port; /* Transport layer port # */
256 : uint32_t sin6_flowinfo; /* IPv6 flow information */
257 : struct in6_addr sin6_addr; /* IPv6 address */
258 : uint32_t sin6_scope_id; /* IPv6 scope-id */
259 : };
260 : #endif /* !__USE_KERNEL_IPV6_DEFS */
261 :
262 : #ifdef __USE_MISC
263 : /* IPv4 multicast request. */
264 : struct ip_mreq
265 : {
266 : /* IP multicast address of group. */
267 : struct in_addr imr_multiaddr;
268 :
269 : /* Local IP address of interface. */
270 : struct in_addr imr_interface;
271 : };
272 :
273 : struct ip_mreq_source
274 : {
275 : /* IP multicast address of group. */
276 : struct in_addr imr_multiaddr;
277 :
278 : /* IP address of interface. */
279 : struct in_addr imr_interface;
280 :
281 : /* IP address of source. */
282 : struct in_addr imr_sourceaddr;
283 : };
284 : #endif
285 :
286 : #if !__USE_KERNEL_IPV6_DEFS
287 : /* Likewise, for IPv6. */
288 : struct ipv6_mreq
289 : {
290 : /* IPv6 multicast address of group */
291 : struct in6_addr ipv6mr_multiaddr;
292 :
293 : /* local interface */
294 : unsigned int ipv6mr_interface;
295 : };
296 : #endif /* !__USE_KERNEL_IPV6_DEFS */
297 :
298 : #ifdef __USE_MISC
299 : /* Multicast group request. */
300 : struct group_req
301 : {
302 : /* Interface index. */
303 : uint32_t gr_interface;
304 :
305 : /* Group address. */
306 : struct sockaddr_storage gr_group;
307 : };
308 :
309 : struct group_source_req
310 : {
311 : /* Interface index. */
312 : uint32_t gsr_interface;
313 :
314 : /* Group address. */
315 : struct sockaddr_storage gsr_group;
316 :
317 : /* Source address. */
318 : struct sockaddr_storage gsr_source;
319 : };
320 :
321 :
322 : /* Full-state filter operations. */
323 : struct ip_msfilter
324 : {
325 : /* IP multicast address of group. */
326 : struct in_addr imsf_multiaddr;
327 :
328 : /* Local IP address of interface. */
329 : struct in_addr imsf_interface;
330 :
331 : /* Filter mode. */
332 : uint32_t imsf_fmode;
333 :
334 : /* Number of source addresses. */
335 : uint32_t imsf_numsrc;
336 : /* Source addresses. */
337 : struct in_addr imsf_slist[1];
338 : };
339 :
340 : #define IP_MSFILTER_SIZE(numsrc) (sizeof (struct ip_msfilter) \
341 : - sizeof (struct in_addr) \
342 : + (numsrc) * sizeof (struct in_addr))
343 :
344 : struct group_filter
345 : {
346 : /* Interface index. */
347 : uint32_t gf_interface;
348 :
349 : /* Group address. */
350 : struct sockaddr_storage gf_group;
351 :
352 : /* Filter mode. */
353 : uint32_t gf_fmode;
354 :
355 : /* Number of source addresses. */
356 : uint32_t gf_numsrc;
357 : /* Source addresses. */
358 : struct sockaddr_storage gf_slist[1];
359 : };
360 :
361 : #define GROUP_FILTER_SIZE(numsrc) (sizeof (struct group_filter) \
362 : - sizeof (struct sockaddr_storage) \
363 : + ((numsrc) \
364 : * sizeof (struct sockaddr_storage)))
365 : #endif
366 :
367 : /* Functions to convert between host and network byte order.
368 :
369 : Please note that these functions normally take `unsigned long int' or
370 : `unsigned short int' values as arguments and also return them. But
371 : this was a short-sighted decision since on different systems the types
372 : may have different representations but the values are always the same. */
373 :
374 : extern uint32_t ntohl (uint32_t __netlong) __THROW __attribute__ ((__const__));
375 : extern uint16_t ntohs (uint16_t __netshort)
376 : __THROW __attribute__ ((__const__));
377 : extern uint32_t htonl (uint32_t __hostlong)
378 : __THROW __attribute__ ((__const__));
379 : extern uint16_t htons (uint16_t __hostshort)
380 : __THROW __attribute__ ((__const__));
381 :
382 : #include <endian.h>
383 :
384 : /* Get machine dependent optimized versions of byte swapping functions. */
385 : #include <bits/byteswap.h>
386 : #include <bits/uintn-identity.h>
387 :
388 : #ifdef __OPTIMIZE__
389 : /* We can optimize calls to the conversion functions. Either nothing has
390 : to be done or we are using directly the byte-swapping functions which
391 : often can be inlined. */
392 : # if __BYTE_ORDER == __BIG_ENDIAN
393 : /* The host byte order is the same as network byte order,
394 : so these functions are all just identity. */
395 : # define ntohl(x) __uint32_identity (x)
396 : # define ntohs(x) __uint16_identity (x)
397 : # define htonl(x) __uint32_identity (x)
398 : # define htons(x) __uint16_identity (x)
399 : # else
400 : # if __BYTE_ORDER == __LITTLE_ENDIAN
401 : # define ntohl(x) __bswap_32 (x)
402 : # define ntohs(x) __bswap_16 (x)
403 : # define htonl(x) __bswap_32 (x)
404 : # define htons(x) __bswap_16 (x)
405 : # endif
406 : # endif
407 : #endif
408 :
409 : #ifdef __GNUC__
410 : # define IN6_IS_ADDR_UNSPECIFIED(a) \
411 : (__extension__ \
412 : ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
413 : __a->__in6_u.__u6_addr32[0] == 0 \
414 : && __a->__in6_u.__u6_addr32[1] == 0 \
415 : && __a->__in6_u.__u6_addr32[2] == 0 \
416 : && __a->__in6_u.__u6_addr32[3] == 0; }))
417 :
418 : # define IN6_IS_ADDR_LOOPBACK(a) \
419 : (__extension__ \
420 : ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
421 : __a->__in6_u.__u6_addr32[0] == 0 \
422 : && __a->__in6_u.__u6_addr32[1] == 0 \
423 : && __a->__in6_u.__u6_addr32[2] == 0 \
424 : && __a->__in6_u.__u6_addr32[3] == htonl (1); }))
425 :
426 : # define IN6_IS_ADDR_LINKLOCAL(a) \
427 : (__extension__ \
428 : ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
429 : (__a->__in6_u.__u6_addr32[0] & htonl (0xffc00000)) == htonl (0xfe800000); }))
430 :
431 : # define IN6_IS_ADDR_SITELOCAL(a) \
432 : (__extension__ \
433 : ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
434 : (__a->__in6_u.__u6_addr32[0] & htonl (0xffc00000)) == htonl (0xfec00000); }))
435 :
436 : # define IN6_IS_ADDR_V4MAPPED(a) \
437 : (__extension__ \
438 : ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
439 : __a->__in6_u.__u6_addr32[0] == 0 \
440 : && __a->__in6_u.__u6_addr32[1] == 0 \
441 : && __a->__in6_u.__u6_addr32[2] == htonl (0xffff); }))
442 :
443 : # define IN6_IS_ADDR_V4COMPAT(a) \
444 : (__extension__ \
445 : ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
446 : __a->__in6_u.__u6_addr32[0] == 0 \
447 : && __a->__in6_u.__u6_addr32[1] == 0 \
448 : && __a->__in6_u.__u6_addr32[2] == 0 \
449 : && ntohl (__a->__in6_u.__u6_addr32[3]) > 1; }))
450 :
451 : # define IN6_ARE_ADDR_EQUAL(a,b) \
452 : (__extension__ \
453 : ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
454 : const struct in6_addr *__b = (const struct in6_addr *) (b); \
455 : __a->__in6_u.__u6_addr32[0] == __b->__in6_u.__u6_addr32[0] \
456 : && __a->__in6_u.__u6_addr32[1] == __b->__in6_u.__u6_addr32[1] \
457 : && __a->__in6_u.__u6_addr32[2] == __b->__in6_u.__u6_addr32[2] \
458 : && __a->__in6_u.__u6_addr32[3] == __b->__in6_u.__u6_addr32[3]; }))
459 : #else
460 : # define IN6_IS_ADDR_UNSPECIFIED(a) \
461 : (((const uint32_t *) (a))[0] == 0 \
462 : && ((const uint32_t *) (a))[1] == 0 \
463 : && ((const uint32_t *) (a))[2] == 0 \
464 : && ((const uint32_t *) (a))[3] == 0)
465 :
466 : # define IN6_IS_ADDR_LOOPBACK(a) \
467 : (((const uint32_t *) (a))[0] == 0 \
468 : && ((const uint32_t *) (a))[1] == 0 \
469 : && ((const uint32_t *) (a))[2] == 0 \
470 : && ((const uint32_t *) (a))[3] == htonl (1))
471 :
472 : # define IN6_IS_ADDR_LINKLOCAL(a) \
473 : ((((const uint32_t *) (a))[0] & htonl (0xffc00000)) \
474 : == htonl (0xfe800000))
475 :
476 : # define IN6_IS_ADDR_SITELOCAL(a) \
477 : ((((const uint32_t *) (a))[0] & htonl (0xffc00000)) \
478 : == htonl (0xfec00000))
479 :
480 : # define IN6_IS_ADDR_V4MAPPED(a) \
481 : ((((const uint32_t *) (a))[0] == 0) \
482 : && (((const uint32_t *) (a))[1] == 0) \
483 : && (((const uint32_t *) (a))[2] == htonl (0xffff)))
484 :
485 : # define IN6_IS_ADDR_V4COMPAT(a) \
486 : ((((const uint32_t *) (a))[0] == 0) \
487 : && (((const uint32_t *) (a))[1] == 0) \
488 : && (((const uint32_t *) (a))[2] == 0) \
489 : && (ntohl (((const uint32_t *) (a))[3]) > 1))
490 :
491 : # define IN6_ARE_ADDR_EQUAL(a,b) \
492 : ((((const uint32_t *) (a))[0] == ((const uint32_t *) (b))[0]) \
493 : && (((const uint32_t *) (a))[1] == ((const uint32_t *) (b))[1]) \
494 : && (((const uint32_t *) (a))[2] == ((const uint32_t *) (b))[2]) \
495 : && (((const uint32_t *) (a))[3] == ((const uint32_t *) (b))[3]))
496 : #endif
497 :
498 : #define IN6_IS_ADDR_MULTICAST(a) (((const uint8_t *) (a))[0] == 0xff)
499 :
500 : #ifdef __USE_MISC
501 : /* Bind socket to a privileged IP port. */
502 0 : extern int bindresvport (int __sockfd, struct sockaddr_in *__sock_in) __THROW;
503 :
504 : /* The IPv6 version of this function. */
505 : extern int bindresvport6 (int __sockfd, struct sockaddr_in6 *__sock_in)
506 : __THROW;
507 : #endif
508 :
509 :
510 0 : #define IN6_IS_ADDR_MC_NODELOCAL(a) \
511 : (IN6_IS_ADDR_MULTICAST(a) \
512 : && ((((const uint8_t *) (a))[1] & 0xf) == 0x1))
513 :
514 : #define IN6_IS_ADDR_MC_LINKLOCAL(a) \
515 : (IN6_IS_ADDR_MULTICAST(a) \
516 : && ((((const uint8_t *) (a))[1] & 0xf) == 0x2))
517 :
518 : #define IN6_IS_ADDR_MC_SITELOCAL(a) \
519 : (IN6_IS_ADDR_MULTICAST(a) \
520 : && ((((const uint8_t *) (a))[1] & 0xf) == 0x5))
521 :
522 : #define IN6_IS_ADDR_MC_ORGLOCAL(a) \
523 : (IN6_IS_ADDR_MULTICAST(a) \
524 : && ((((const uint8_t *) (a))[1] & 0xf) == 0x8))
525 :
526 : #define IN6_IS_ADDR_MC_GLOBAL(a) \
527 : (IN6_IS_ADDR_MULTICAST(a) \
528 : && ((((const uint8_t *) (a))[1] & 0xf) == 0xe))
529 :
530 :
531 : #ifdef __USE_GNU
532 : struct cmsghdr; /* Forward declaration. */
533 :
534 : #if !__USE_KERNEL_IPV6_DEFS
535 : /* IPv6 packet information. */
536 : struct in6_pktinfo
537 : {
538 : struct in6_addr ipi6_addr; /* src/dst IPv6 address */
539 : unsigned int ipi6_ifindex; /* send/recv interface index */
540 : };
541 :
542 : /* IPv6 MTU information. */
543 : struct ip6_mtuinfo
544 : {
545 : struct sockaddr_in6 ip6m_addr; /* dst address including zone ID */
546 : uint32_t ip6m_mtu; /* path MTU in host byte order */
547 : };
548 : #endif /* !__USE_KERNEL_IPV6_DEFS */
549 :
550 : /* Obsolete hop-by-hop and Destination Options Processing (RFC 2292). */
551 : extern int inet6_option_space (int __nbytes)
552 : __THROW __attribute_deprecated__;
553 : extern int inet6_option_init (void *__bp, struct cmsghdr **__cmsgp,
554 : int __type) __THROW __attribute_deprecated__;
555 : extern int inet6_option_append (struct cmsghdr *__cmsg,
556 : const uint8_t *__typep, int __multx,
557 : int __plusy) __THROW __attribute_deprecated__;
558 : extern uint8_t *inet6_option_alloc (struct cmsghdr *__cmsg, int __datalen,
559 : int __multx, int __plusy)
560 : __THROW __attribute_deprecated__;
561 : extern int inet6_option_next (const struct cmsghdr *__cmsg,
562 : uint8_t **__tptrp)
563 : __THROW __attribute_deprecated__;
564 : extern int inet6_option_find (const struct cmsghdr *__cmsg,
565 : uint8_t **__tptrp, int __type)
566 : __THROW __attribute_deprecated__;
567 :
568 :
569 : /* Hop-by-Hop and Destination Options Processing (RFC 3542). */
570 : extern int inet6_opt_init (void *__extbuf, socklen_t __extlen) __THROW;
571 : extern int inet6_opt_append (void *__extbuf, socklen_t __extlen, int __offset,
572 : uint8_t __type, socklen_t __len, uint8_t __align,
573 : void **__databufp) __THROW;
574 : extern int inet6_opt_finish (void *__extbuf, socklen_t __extlen, int __offset)
575 : __THROW;
576 : extern int inet6_opt_set_val (void *__databuf, int __offset, void *__val,
577 : socklen_t __vallen) __THROW;
578 : extern int inet6_opt_next (void *__extbuf, socklen_t __extlen, int __offset,
579 : uint8_t *__typep, socklen_t *__lenp,
580 : void **__databufp) __THROW;
581 : extern int inet6_opt_find (void *__extbuf, socklen_t __extlen, int __offset,
582 : uint8_t __type, socklen_t *__lenp,
583 : void **__databufp) __THROW;
584 : extern int inet6_opt_get_val (void *__databuf, int __offset, void *__val,
585 : socklen_t __vallen) __THROW;
586 :
587 :
588 : /* Routing Header Option (RFC 3542). */
589 : extern socklen_t inet6_rth_space (int __type, int __segments) __THROW;
590 : extern void *inet6_rth_init (void *__bp, socklen_t __bp_len, int __type,
591 : int __segments) __THROW;
592 : extern int inet6_rth_add (void *__bp, const struct in6_addr *__addr) __THROW;
593 : extern int inet6_rth_reverse (const void *__in, void *__out) __THROW;
594 : extern int inet6_rth_segments (const void *__bp) __THROW;
595 : extern struct in6_addr *inet6_rth_getaddr (const void *__bp, int __index)
596 : __THROW;
597 :
598 :
599 : /* Multicast source filter support. */
600 :
601 : /* Get IPv4 source filter. */
602 : extern int getipv4sourcefilter (int __s, struct in_addr __interface_addr,
603 : struct in_addr __group, uint32_t *__fmode,
604 : uint32_t *__numsrc, struct in_addr *__slist)
605 : __THROW;
606 :
607 : /* Set IPv4 source filter. */
608 : extern int setipv4sourcefilter (int __s, struct in_addr __interface_addr,
609 : struct in_addr __group, uint32_t __fmode,
610 : uint32_t __numsrc,
611 : const struct in_addr *__slist)
612 : __THROW;
613 :
614 :
615 : /* Get source filter. */
616 : extern int getsourcefilter (int __s, uint32_t __interface_addr,
617 : const struct sockaddr *__group,
618 : socklen_t __grouplen, uint32_t *__fmode,
619 : uint32_t *__numsrc,
620 : struct sockaddr_storage *__slist) __THROW;
621 :
622 : /* Set source filter. */
623 : extern int setsourcefilter (int __s, uint32_t __interface_addr,
624 : const struct sockaddr *__group,
625 : socklen_t __grouplen, uint32_t __fmode,
626 : uint32_t __numsrc,
627 : const struct sockaddr_storage *__slist) __THROW;
628 : #endif /* use GNU */
629 :
630 : __END_DECLS
631 :
632 : #endif /* netinet/in.h */
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