1 /*
2 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
3 * Use is subject to license terms.
4 *
5 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
6 * Copyright 2020 OmniOS Community Edition (OmniOSce) Association.
7 */
8 /*
9 * Copyright (c) 1982, 1986 Regents of the University of California.
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms are permitted
13 * provided that this notice is preserved and that due credit is given
14 * to the University of California at Berkeley. The name of the University
15 * may not be used to endorse or promote products derived from this
16 * software without specific prior written permission. This software
17 * is provided ``as is'' without express or implied warranty.
18 */
19
20 /*
21 * Constants and structures defined by the internet system,
22 * according to following documents
23 *
24 * Internet ASSIGNED NUMBERS (RFC1700) and its successors:
25 * http://www.iana.org/assignments/protocol-numbers
26 * http://www.iana.org/assignments/port-numbers
27 * Basic Socket Interface Extensions for IPv6 (RFC2133 and its successors)
28 *
29 */
30
31 #ifndef _NETINET_IN_H
32 #define _NETINET_IN_H
33
34 #include <sys/feature_tests.h>
35
36 #ifdef __cplusplus
37 extern "C" {
38 #endif
39
40 #include <sys/types.h>
41
42 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
43 #include <sys/socket_impl.h>
44 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
45
46 #ifndef _SOCKLEN_T
47 #define _SOCKLEN_T
48
49 /*
50 * The socklen definitions are reproduced here from sys/socket.h so as to
51 * not introduce that namespace into existing users of netinet/in.h.
52 */
53 #if defined(_XPG4_2) && !defined(_XPG5) && !defined(_LP64)
54 typedef size_t socklen_t;
55 #else
56 typedef uint32_t socklen_t;
57 #endif /* defined(_XPG4_2) && !defined(_XPG5) && !defined(_LP64) */
58
59 #if defined(_XPG4_2) || defined(_BOOT)
60 typedef socklen_t *Psocklen_t;
61 #else
62 typedef void *Psocklen_t;
63 #endif /* defined(_XPG4_2) || defined(_BOOT) */
64
65 #endif /* _SOCKLEN_T */
66
67 /*
68 * Symbols such as htonl() are required to be exposed through this file,
69 * per XNS Issue 5. This is achieved by inclusion of <sys/byteorder.h>
70 */
71 #if !defined(_XPG4_2) || defined(__EXTENSIONS__) || defined(_XPG5)
72 #include <sys/byteorder.h>
73 #endif
74
75 #ifndef _IN_PORT_T
76 #define _IN_PORT_T
77 typedef uint16_t in_port_t;
78 #endif
79
80 /*
81 * Note: IPv4 address data structures usage conventions.
82 * The "in_addr_t" type below (required by Unix standards)
83 * is NOT a typedef of "struct in_addr" and violates the usual
84 * conventions where "struct <name>" and <name>_t are corresponding
85 * typedefs.
86 * To minimize confusion, kernel data structures/usage prefers use
87 * of "ipaddr_t" as atomic uint32_t type and avoid using "in_addr_t"
88 * The user level APIs continue to follow the historic popular
89 * practice of using "struct in_addr".
90 */
91 #ifndef _IN_ADDR_T
92 #define _IN_ADDR_T
93 typedef uint32_t in_addr_t;
94 #endif
95
96 #ifndef _IPADDR_T
97 #define _IPADDR_T
98 typedef uint32_t ipaddr_t;
99 #endif
100
101 #if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__)
102
103 struct in6_addr {
104 union {
105 /*
106 * Note: Static initalizers of "union" type assume
107 * the constant on the RHS is the type of the first member
108 * of union.
109 * To make static initializers (and efficient usage) work,
110 * the order of members exposed to user and kernel view of
111 * this data structure is different.
112 * User environment sees specified uint8_t type as first
113 * member whereas kernel sees most efficient type as
114 * first member.
115 */
116 #ifdef _KERNEL
117 uint32_t _S6_u32[4]; /* IPv6 address */
118 uint16_t _S6_u16[8]; /* IPv6 address */
119 uint8_t _S6_u8[16]; /* IPv6 address */
120 #else
121 uint8_t _S6_u8[16]; /* IPv6 address */
122 uint16_t _S6_u16[8]; /* IPv6 address */
123 uint32_t _S6_u32[4]; /* IPv6 address */
124 #endif
125 uint32_t __S6_align; /* Align on 32 bit boundary */
126 } _S6_un;
127 };
128 #define s6_addr _S6_un._S6_u8
129
130 #ifdef _KERNEL
131 #define s6_addr8 _S6_un._S6_u8
132 #define s6_addr16 _S6_un._S6_u16
133 #define s6_addr32 _S6_un._S6_u32
134 #endif
135
136 typedef struct in6_addr in6_addr_t;
137
138 #endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */
139
140 #ifndef _SA_FAMILY_T
141 #define _SA_FAMILY_T
142 typedef uint16_t sa_family_t;
143 #endif
144
145 /*
146 * Protocols
147 *
148 * Some of these constant names are copied for the DTrace IP provider in
149 * usr/src/lib/libdtrace/common/{ip.d.in, ip.sed.in}, which should be kept
150 * in sync.
151 */
152 #define IPPROTO_IP 0 /* dummy for IP */
153 #define IPPROTO_HOPOPTS 0 /* Hop by hop header for IPv6 */
154 #define IPPROTO_ICMP 1 /* control message protocol */
155 #define IPPROTO_IGMP 2 /* group control protocol */
156 #define IPPROTO_GGP 3 /* gateway^2 (deprecated) */
157 #define IPPROTO_ENCAP 4 /* IP in IP encapsulation */
158 #define IPPROTO_TCP 6 /* tcp */
159 #define IPPROTO_EGP 8 /* exterior gateway protocol */
160 #define IPPROTO_PUP 12 /* pup */
161 #define IPPROTO_UDP 17 /* user datagram protocol */
162 #define IPPROTO_IDP 22 /* xns idp */
163 #define IPPROTO_IPV6 41 /* IPv6 encapsulated in IP */
164 #define IPPROTO_ROUTING 43 /* Routing header for IPv6 */
165 #define IPPROTO_FRAGMENT 44 /* Fragment header for IPv6 */
166 #define IPPROTO_RSVP 46 /* rsvp */
167 #define IPPROTO_ESP 50 /* IPsec Encap. Sec. Payload */
168 #define IPPROTO_AH 51 /* IPsec Authentication Hdr. */
169 #define IPPROTO_ICMPV6 58 /* ICMP for IPv6 */
170 #define IPPROTO_NONE 59 /* No next header for IPv6 */
171 #define IPPROTO_DSTOPTS 60 /* Destination options */
172 #define IPPROTO_HELLO 63 /* "hello" routing protocol */
173 #define IPPROTO_ND 77 /* UNOFFICIAL net disk proto */
174 #define IPPROTO_EON 80 /* ISO clnp */
175 #define IPPROTO_OSPF 89 /* OSPF */
176 #define IPPROTO_PIM 103 /* PIM routing protocol */
177 #define IPPROTO_SCTP 132 /* Stream Control */
178 /* Transmission Protocol */
179
180 #define IPPROTO_RAW 255 /* raw IP packet */
181 #define IPPROTO_MAX 256
182
183 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
184 #define PROTO_SDP 257 /* Sockets Direct Protocol */
185 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
186
187 /*
188 * Port/socket numbers: network standard functions
189 *
190 * Entries should exist here for each port number compiled into an ON
191 * component, such as snoop.
192 */
193 #define IPPORT_ECHO 7
194 #define IPPORT_DISCARD 9
195 #define IPPORT_SYSTAT 11
196 #define IPPORT_DAYTIME 13
197 #define IPPORT_NETSTAT 15
198 #define IPPORT_CHARGEN 19
199 #define IPPORT_FTP 21
200 #define IPPORT_TELNET 23
201 #define IPPORT_SMTP 25
202 #define IPPORT_TIMESERVER 37
203 #define IPPORT_NAMESERVER 42
204 #define IPPORT_WHOIS 43
205 #define IPPORT_DOMAIN 53
206 #define IPPORT_MDNS 5353
207 #define IPPORT_MTP 57
208
209 /*
210 * Port/socket numbers: host specific functions
211 */
212 #define IPPORT_BOOTPS 67
213 #define IPPORT_BOOTPC 68
214 #define IPPORT_TFTP 69
215 #define IPPORT_RJE 77
216 #define IPPORT_FINGER 79
217 #define IPPORT_HTTP 80
218 #define IPPORT_HTTP_ALT 8080
219 #define IPPORT_TTYLINK 87
220 #define IPPORT_SUPDUP 95
221 #define IPPORT_NTP 123
222 #define IPPORT_NETBIOS_NS 137
223 #define IPPORT_NETBIOS_DGM 138
224 #define IPPORT_NETBIOS_SSN 139
225 #define IPPORT_LDAP 389
226 #define IPPORT_SLP 427
227 #define IPPORT_MIP 434
228 #define IPPORT_SMB 445 /* a.k.a. microsoft-ds */
229
230 /*
231 * Internet Key Exchange (IKE) ports
232 */
233 #define IPPORT_IKE 500
234 #define IPPORT_IKE_NATT 4500
235
236 /*
237 * UNIX TCP sockets
238 */
239 #define IPPORT_EXECSERVER 512
240 #define IPPORT_LOGINSERVER 513
241 #define IPPORT_CMDSERVER 514
242 #define IPPORT_PRINTER 515
243 #define IPPORT_EFSSERVER 520
244
245 /*
246 * UNIX UDP sockets
247 */
248 #define IPPORT_BIFFUDP 512
249 #define IPPORT_WHOSERVER 513
250 #define IPPORT_SYSLOG 514
251 #define IPPORT_TALK 517
252 #define IPPORT_ROUTESERVER 520
253 #define IPPORT_RIPNG 521
254
255 /*
256 * DHCPv6 UDP ports
257 */
258 #define IPPORT_DHCPV6C 546
259 #define IPPORT_DHCPV6S 547
260
261 #define IPPORT_SOCKS 1080
262
263 /*
264 * Ports < IPPORT_RESERVED are reserved for
265 * privileged processes (e.g. root).
266 * Ports > IPPORT_USERRESERVED are reserved
267 * for servers, not necessarily privileged.
268 */
269 #define IPPORT_RESERVED 1024
270 #define IPPORT_USERRESERVED 5000
271
272 /*
273 * Link numbers
274 */
275 #define IMPLINK_IP 155
276 #define IMPLINK_LOWEXPER 156
277 #define IMPLINK_HIGHEXPER 158
278
279 /*
280 * IPv4 Internet address
281 * This definition contains obsolete fields for compatibility
282 * with SunOS 3.x and 4.2bsd. The presence of subnets renders
283 * divisions into fixed fields misleading at best. New code
284 * should use only the s_addr field.
285 */
286
287 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
288 #define _S_un_b S_un_b
289 #define _S_un_w S_un_w
290 #define _S_addr S_addr
291 #define _S_un S_un
292 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
293
294 struct in_addr {
295 union {
296 struct { uint8_t s_b1, s_b2, s_b3, s_b4; } _S_un_b;
297 struct { uint16_t s_w1, s_w2; } _S_un_w;
298 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
299 uint32_t _S_addr;
300 #else
301 in_addr_t _S_addr;
302 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
303 } _S_un;
304 #define s_addr _S_un._S_addr /* should be used for all code */
305 #define s_host _S_un._S_un_b.s_b2 /* OBSOLETE: host on imp */
306 #define s_net _S_un._S_un_b.s_b1 /* OBSOLETE: network */
307 #define s_imp _S_un._S_un_w.s_w2 /* OBSOLETE: imp */
308 #define s_impno _S_un._S_un_b.s_b4 /* OBSOLETE: imp # */
309 #define s_lh _S_un._S_un_b.s_b3 /* OBSOLETE: logical host */
310 };
311
312 /*
313 * Definitions of bits in internet address integers.
314 * On subnets, the decomposition of addresses to host and net parts
315 * is done according to subnet mask, not the masks here.
316 *
317 * Note that with the introduction of CIDR, IN_CLASSA, IN_CLASSB,
318 * IN_CLASSC, IN_CLASSD and IN_CLASSE macros have become "de-facto
319 * obsolete". IN_MULTICAST macro should be used to test if a address
320 * is a multicast address.
321 */
322 #define IN_CLASSA(i) (((i) & 0x80000000U) == 0)
323 #define IN_CLASSA_NET 0xff000000U
324 #define IN_CLASSA_NSHIFT 24
325 #define IN_CLASSA_HOST 0x00ffffffU
326 #define IN_CLASSA_MAX 128
327
328 #define IN_CLASSB(i) (((i) & 0xc0000000U) == 0x80000000U)
329 #define IN_CLASSB_NET 0xffff0000U
330 #define IN_CLASSB_NSHIFT 16
331 #define IN_CLASSB_HOST 0x0000ffffU
332 #define IN_CLASSB_MAX 65536
333
334 #define IN_CLASSC(i) (((i) & 0xe0000000U) == 0xc0000000U)
335 #define IN_CLASSC_NET 0xffffff00U
336 #define IN_CLASSC_NSHIFT 8
337 #define IN_CLASSC_HOST 0x000000ffU
338
339 #define IN_CLASSD(i) (((i) & 0xf0000000U) == 0xe0000000U)
340 #define IN_CLASSD_NET 0xf0000000U /* These aren't really */
341 #define IN_CLASSD_NSHIFT 28 /* net and host fields, but */
342 #define IN_CLASSD_HOST 0x0fffffffU /* routing needn't know */
343
344 #define IN_CLASSE(i) (((i) & 0xf0000000U) == 0xf0000000U)
345 #define IN_CLASSE_NET 0xffffffffU
346
347 #define IN_MULTICAST(i) IN_CLASSD(i)
348
349 /*
350 * We have removed CLASS E checks from the kernel
351 * But we preserve these defines for userland in order
352 * to avoid compile breakage of some 3rd party piece of software
353 */
354 #ifndef _KERNEL
355 #define IN_EXPERIMENTAL(i) (((i) & 0xe0000000U) == 0xe0000000U)
356 #define IN_BADCLASS(i) (((i) & 0xf0000000U) == 0xf0000000U)
357 #endif
358
359 #define INADDR_ANY 0x00000000U
360 #define INADDR_LOOPBACK 0x7F000001U
361 #define INADDR_BROADCAST 0xffffffffU /* must be masked */
362 #define INADDR_NONE 0xffffffffU
363
364 #define INADDR_UNSPEC_GROUP 0xe0000000U /* 224.0.0.0 */
365 #define INADDR_ALLHOSTS_GROUP 0xe0000001U /* 224.0.0.1 */
366 #define INADDR_ALLRTRS_GROUP 0xe0000002U /* 224.0.0.2 */
367 #define INADDR_ALLRPTS_GROUP 0xe0000016U /* 224.0.0.22, IGMPv3 */
368 #define INADDR_MAX_LOCAL_GROUP 0xe00000ffU /* 224.0.0.255 */
369
370 /* Scoped IPv4 prefixes (in host byte-order) */
371 #define IN_AUTOCONF_NET 0xa9fe0000U /* 169.254/16 */
372 #define IN_AUTOCONF_MASK 0xffff0000U
373 #define IN_PRIVATE8_NET 0x0a000000U /* 10/8 */
374 #define IN_PRIVATE8_MASK 0xff000000U
375 #define IN_PRIVATE12_NET 0xac100000U /* 172.16/12 */
376 #define IN_PRIVATE12_MASK 0xfff00000U
377 #define IN_PRIVATE16_NET 0xc0a80000U /* 192.168/16 */
378 #define IN_PRIVATE16_MASK 0xffff0000U
379
380 /* RFC 3927 IPv4 link local address (i in host byte-order) */
381 #define IN_LINKLOCAL(i) (((i) & IN_AUTOCONF_MASK) == IN_AUTOCONF_NET)
382
383 /* Well known 6to4 Relay Router Anycast address defined in RFC 3068 */
384 #if !defined(_XPG4_2) || !defined(__EXTENSIONS__)
385 #define INADDR_6TO4RRANYCAST 0xc0586301U /* 192.88.99.1 */
386 #endif /* !defined(_XPG4_2) || !defined(__EXTENSIONS__) */
387
388 #define IN_LOOPBACKNET 127 /* official! */
389
390 /*
391 * Define a macro to stuff the loopback address into an Internet address
392 */
393 #if !defined(_XPG4_2) || !defined(__EXTENSIONS__)
394 #define IN_SET_LOOPBACK_ADDR(a) \
395 { (a)->sin_addr.s_addr = htonl(INADDR_LOOPBACK); \
396 (a)->sin_family = AF_INET; }
397 #endif /* !defined(_XPG4_2) || !defined(__EXTENSIONS__) */
398
399 /*
400 * IPv4 Socket address.
401 */
402 struct sockaddr_in {
403 sa_family_t sin_family;
404 in_port_t sin_port;
405 struct in_addr sin_addr;
406 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
407 char sin_zero[8];
408 #else
409 unsigned char sin_zero[8];
410 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
411 };
412
413 #if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__)
414 /*
415 * IPv6 socket address.
416 */
417 struct sockaddr_in6 {
418 sa_family_t sin6_family;
419 in_port_t sin6_port;
420 uint32_t sin6_flowinfo;
421 struct in6_addr sin6_addr;
422 uint32_t sin6_scope_id; /* Depends on scope of sin6_addr */
423 uint32_t __sin6_src_id; /* Impl. specific - UDP replies */
424 };
425
426 /*
427 * Macros for accessing the traffic class and flow label fields from
428 * sin6_flowinfo.
429 * These are designed to be applied to a 32-bit value.
430 */
431 #ifdef _BIG_ENDIAN
432
433 /* masks */
434 #define IPV6_FLOWINFO_FLOWLABEL 0x000fffffU
435 #define IPV6_FLOWINFO_TCLASS 0x0ff00000U
436
437 #else /* _BIG_ENDIAN */
438
439 /* masks */
440 #define IPV6_FLOWINFO_FLOWLABEL 0xffff0f00U
441 #define IPV6_FLOWINFO_TCLASS 0x0000f00fU
442
443 #endif /* _BIG_ENDIAN */
444
445 /*
446 * Note: Macros IN6ADDR_ANY_INIT and IN6ADDR_LOOPBACK_INIT are for
447 * use as RHS of Static initializers of "struct in6_addr" (or in6_addr_t)
448 * only. They need to be different for User/Kernel versions because union
449 * component data structure is defined differently (it is identical at
450 * binary representation level).
451 *
452 * const struct in6_addr IN6ADDR_ANY_INIT;
453 * const struct in6_addr IN6ADDR_LOOPBACK_INIT;
454 */
455
456
457 #ifdef _KERNEL
458 #define IN6ADDR_ANY_INIT { 0, 0, 0, 0 }
459
460 #ifdef _BIG_ENDIAN
461 #define IN6ADDR_LOOPBACK_INIT { 0, 0, 0, 0x00000001U }
462 #else /* _BIG_ENDIAN */
463 #define IN6ADDR_LOOPBACK_INIT { 0, 0, 0, 0x01000000U }
464 #endif /* _BIG_ENDIAN */
465
466 #else
467
468 #define IN6ADDR_ANY_INIT { 0, 0, 0, 0, \
469 0, 0, 0, 0, \
470 0, 0, 0, 0, \
471 0, 0, 0, 0 }
472
473 #define IN6ADDR_LOOPBACK_INIT { 0, 0, 0, 0, \
474 0, 0, 0, 0, \
475 0, 0, 0, 0, \
476 0, 0, 0, 0x1U }
477 #endif /* _KERNEL */
478
479 /*
480 * RFC 2553 specifies the following macros. Their type is defined
481 * as "int" in the RFC but they only have boolean significance
482 * (zero or non-zero). For the purposes of our comment notation,
483 * we assume a hypothetical type "bool" defined as follows to
484 * write the prototypes assumed for macros in our comments better.
485 *
486 * typedef int bool;
487 */
488
489 /*
490 * IN6 macros used to test for special IPv6 addresses
491 * (Mostly from spec)
492 *
493 * bool IN6_IS_ADDR_UNSPECIFIED (const struct in6_addr *);
494 * bool IN6_IS_ADDR_LOOPBACK (const struct in6_addr *);
495 * bool IN6_IS_ADDR_MULTICAST (const struct in6_addr *);
496 * bool IN6_IS_ADDR_LINKLOCAL (const struct in6_addr *);
497 * bool IN6_IS_ADDR_SITELOCAL (const struct in6_addr *);
498 * bool IN6_IS_ADDR_V4MAPPED (const struct in6_addr *);
499 * bool IN6_IS_ADDR_V4MAPPED_ANY(const struct in6_addr *); -- Not from RFC2553
500 * bool IN6_IS_ADDR_V4COMPAT (const struct in6_addr *);
501 * bool IN6_IS_ADDR_MC_RESERVED (const struct in6_addr *); -- Not from RFC2553
502 * bool IN6_IS_ADDR_MC_NODELOCAL(const struct in6_addr *);
503 * bool IN6_IS_ADDR_MC_LINKLOCAL(const struct in6_addr *);
504 * bool IN6_IS_ADDR_MC_SITELOCAL(const struct in6_addr *);
505 * bool IN6_IS_ADDR_MC_ORGLOCAL (const struct in6_addr *);
506 * bool IN6_IS_ADDR_MC_GLOBAL (const struct in6_addr *);
507 * bool IN6_IS_ADDR_6TO4 (const struct in6_addr *); -- Not from RFC2553
508 * bool IN6_ARE_6TO4_PREFIX_EQUAL(const struct in6_addr *,
509 * const struct in6_addr *); -- Not from RFC2553
510 * bool IN6_IS_ADDR_LINKSCOPE (const struct in6addr *); -- Not from RFC2553
511 */
512
513 #define IN6_IS_ADDR_UNSPECIFIED(addr) \
514 (((addr)->_S6_un._S6_u32[3] == 0) && \
515 ((addr)->_S6_un._S6_u32[2] == 0) && \
516 ((addr)->_S6_un._S6_u32[1] == 0) && \
517 ((addr)->_S6_un._S6_u32[0] == 0))
518
519 #ifdef _BIG_ENDIAN
520 #define IN6_IS_ADDR_LOOPBACK(addr) \
521 (((addr)->_S6_un._S6_u32[3] == 0x00000001) && \
522 ((addr)->_S6_un._S6_u32[2] == 0) && \
523 ((addr)->_S6_un._S6_u32[1] == 0) && \
524 ((addr)->_S6_un._S6_u32[0] == 0))
525 #else /* _BIG_ENDIAN */
526 #define IN6_IS_ADDR_LOOPBACK(addr) \
527 (((addr)->_S6_un._S6_u32[3] == 0x01000000) && \
528 ((addr)->_S6_un._S6_u32[2] == 0) && \
529 ((addr)->_S6_un._S6_u32[1] == 0) && \
530 ((addr)->_S6_un._S6_u32[0] == 0))
531 #endif /* _BIG_ENDIAN */
532
533 #ifdef _BIG_ENDIAN
534 #define IN6_IS_ADDR_MULTICAST(addr) \
535 (((addr)->_S6_un._S6_u32[0] & 0xff000000) == 0xff000000)
536 #else /* _BIG_ENDIAN */
537 #define IN6_IS_ADDR_MULTICAST(addr) \
538 (((addr)->_S6_un._S6_u32[0] & 0x000000ff) == 0x000000ff)
539 #endif /* _BIG_ENDIAN */
540
541 #ifdef _BIG_ENDIAN
542 #define IN6_IS_ADDR_LINKLOCAL(addr) \
543 (((addr)->_S6_un._S6_u32[0] & 0xffc00000) == 0xfe800000)
544 #else /* _BIG_ENDIAN */
545 #define IN6_IS_ADDR_LINKLOCAL(addr) \
546 (((addr)->_S6_un._S6_u32[0] & 0x0000c0ff) == 0x000080fe)
547 #endif /* _BIG_ENDIAN */
548
549 #ifdef _BIG_ENDIAN
550 #define IN6_IS_ADDR_SITELOCAL(addr) \
551 (((addr)->_S6_un._S6_u32[0] & 0xffc00000) == 0xfec00000)
552 #else /* _BIG_ENDIAN */
553 #define IN6_IS_ADDR_SITELOCAL(addr) \
554 (((addr)->_S6_un._S6_u32[0] & 0x0000c0ff) == 0x0000c0fe)
555 #endif /* _BIG_ENDIAN */
556
557 #ifdef _BIG_ENDIAN
558 #define IN6_IS_ADDR_V4MAPPED(addr) \
559 (((addr)->_S6_un._S6_u32[2] == 0x0000ffff) && \
560 ((addr)->_S6_un._S6_u32[1] == 0) && \
561 ((addr)->_S6_un._S6_u32[0] == 0))
562 #else /* _BIG_ENDIAN */
563 #define IN6_IS_ADDR_V4MAPPED(addr) \
564 (((addr)->_S6_un._S6_u32[2] == 0xffff0000U) && \
565 ((addr)->_S6_un._S6_u32[1] == 0) && \
566 ((addr)->_S6_un._S6_u32[0] == 0))
567 #endif /* _BIG_ENDIAN */
568
569 /*
570 * IN6_IS_ADDR_V4MAPPED - A IPv4 mapped INADDR_ANY
571 * Note: This macro is currently NOT defined in RFC2553 specification
572 * and not a standard macro that portable applications should use.
573 */
574 #ifdef _BIG_ENDIAN
575 #define IN6_IS_ADDR_V4MAPPED_ANY(addr) \
576 (((addr)->_S6_un._S6_u32[3] == 0) && \
577 ((addr)->_S6_un._S6_u32[2] == 0x0000ffff) && \
578 ((addr)->_S6_un._S6_u32[1] == 0) && \
579 ((addr)->_S6_un._S6_u32[0] == 0))
580 #else /* _BIG_ENDIAN */
581 #define IN6_IS_ADDR_V4MAPPED_ANY(addr) \
582 (((addr)->_S6_un._S6_u32[3] == 0) && \
583 ((addr)->_S6_un._S6_u32[2] == 0xffff0000U) && \
584 ((addr)->_S6_un._S6_u32[1] == 0) && \
585 ((addr)->_S6_un._S6_u32[0] == 0))
586 #endif /* _BIG_ENDIAN */
587
588 /* Exclude loopback and unspecified address */
589 #ifdef _BIG_ENDIAN
590 #define IN6_IS_ADDR_V4COMPAT(addr) \
591 (((addr)->_S6_un._S6_u32[2] == 0) && \
592 ((addr)->_S6_un._S6_u32[1] == 0) && \
593 ((addr)->_S6_un._S6_u32[0] == 0) && \
594 !((addr)->_S6_un._S6_u32[3] == 0) && \
595 !((addr)->_S6_un._S6_u32[3] == 0x00000001))
596
597 #else /* _BIG_ENDIAN */
598 #define IN6_IS_ADDR_V4COMPAT(addr) \
599 (((addr)->_S6_un._S6_u32[2] == 0) && \
600 ((addr)->_S6_un._S6_u32[1] == 0) && \
601 ((addr)->_S6_un._S6_u32[0] == 0) && \
602 !((addr)->_S6_un._S6_u32[3] == 0) && \
603 !((addr)->_S6_un._S6_u32[3] == 0x01000000))
604 #endif /* _BIG_ENDIAN */
605
606 /*
607 * Note:
608 * IN6_IS_ADDR_MC_RESERVED macro is currently NOT defined in RFC2553
609 * specification and not a standard macro that portable applications
610 * should use.
611 */
612 #ifdef _BIG_ENDIAN
613 #define IN6_IS_ADDR_MC_RESERVED(addr) \
614 (((addr)->_S6_un._S6_u32[0] & 0xff0f0000) == 0xff000000)
615
616 #else /* _BIG_ENDIAN */
617 #define IN6_IS_ADDR_MC_RESERVED(addr) \
618 (((addr)->_S6_un._S6_u32[0] & 0x00000fff) == 0x000000ff)
619 #endif /* _BIG_ENDIAN */
620
621 #ifdef _BIG_ENDIAN
622 #define IN6_IS_ADDR_MC_NODELOCAL(addr) \
623 (((addr)->_S6_un._S6_u32[0] & 0xff0f0000) == 0xff010000)
624 #else /* _BIG_ENDIAN */
625 #define IN6_IS_ADDR_MC_NODELOCAL(addr) \
626 (((addr)->_S6_un._S6_u32[0] & 0x00000fff) == 0x000001ff)
627 #endif /* _BIG_ENDIAN */
628
629 #ifdef _BIG_ENDIAN
630 #define IN6_IS_ADDR_MC_LINKLOCAL(addr) \
631 (((addr)->_S6_un._S6_u32[0] & 0xff0f0000) == 0xff020000)
632 #else /* _BIG_ENDIAN */
633 #define IN6_IS_ADDR_MC_LINKLOCAL(addr) \
634 (((addr)->_S6_un._S6_u32[0] & 0x00000fff) == 0x000002ff)
635 #endif /* _BIG_ENDIAN */
636
637 #ifdef _BIG_ENDIAN
638 #define IN6_IS_ADDR_MC_SITELOCAL(addr) \
639 (((addr)->_S6_un._S6_u32[0] & 0xff0f0000) == 0xff050000)
640 #else /* _BIG_ENDIAN */
641 #define IN6_IS_ADDR_MC_SITELOCAL(addr) \
642 (((addr)->_S6_un._S6_u32[0] & 0x00000fff) == 0x000005ff)
643 #endif /* _BIG_ENDIAN */
644
645 #ifdef _BIG_ENDIAN
646 #define IN6_IS_ADDR_MC_ORGLOCAL(addr) \
647 (((addr)->_S6_un._S6_u32[0] & 0xff0f0000) == 0xff080000)
648 #else /* _BIG_ENDIAN */
649 #define IN6_IS_ADDR_MC_ORGLOCAL(addr) \
650 (((addr)->_S6_un._S6_u32[0] & 0x00000fff) == 0x000008ff)
651 #endif /* _BIG_ENDIAN */
652
653 #ifdef _BIG_ENDIAN
654 #define IN6_IS_ADDR_MC_GLOBAL(addr) \
655 (((addr)->_S6_un._S6_u32[0] & 0xff0f0000) == 0xff0e0000)
656 #else /* _BIG_ENDIAN */
657 #define IN6_IS_ADDR_MC_GLOBAL(addr) \
658 (((addr)->_S6_un._S6_u32[0] & 0x00000fff) == 0x00000eff)
659 #endif /* _BIG_ENDIAN */
660
661 /*
662 * The IN6_IS_ADDR_MC_SOLICITEDNODE macro is not defined in any standard or
663 * RFC, and shouldn't be used by portable applications. It is used to see
664 * if an address is a solicited-node multicast address, which is prefixed
665 * with ff02:0:0:0:0:1:ff00::/104.
666 */
667 #ifdef _BIG_ENDIAN
668 #define IN6_IS_ADDR_MC_SOLICITEDNODE(addr) \
669 (((addr)->_S6_un._S6_u32[0] == 0xff020000) && \
670 ((addr)->_S6_un._S6_u32[1] == 0x00000000) && \
671 ((addr)->_S6_un._S6_u32[2] == 0x00000001) && \
672 (((addr)->_S6_un._S6_u32[3] & 0xff000000) == 0xff000000))
673 #else
674 #define IN6_IS_ADDR_MC_SOLICITEDNODE(addr) \
675 (((addr)->_S6_un._S6_u32[0] == 0x000002ff) && \
676 ((addr)->_S6_un._S6_u32[1] == 0x00000000) && \
677 ((addr)->_S6_un._S6_u32[2] == 0x01000000) && \
678 (((addr)->_S6_un._S6_u32[3] & 0x000000ff) == 0x000000ff))
679 #endif
680
681 /*
682 * Macros to a) test for 6to4 IPv6 address, and b) to test if two
683 * 6to4 addresses have the same /48 prefix, and, hence, are from the
684 * same 6to4 site.
685 */
686
687 #ifdef _BIG_ENDIAN
688 #define IN6_IS_ADDR_6TO4(addr) \
689 (((addr)->_S6_un._S6_u32[0] & 0xffff0000) == 0x20020000)
690 #else /* _BIG_ENDIAN */
691 #define IN6_IS_ADDR_6TO4(addr) \
692 (((addr)->_S6_un._S6_u32[0] & 0x0000ffff) == 0x00000220)
693 #endif /* _BIG_ENDIAN */
694
695 #define IN6_ARE_6TO4_PREFIX_EQUAL(addr1, addr2) \
696 (((addr1)->_S6_un._S6_u32[0] == (addr2)->_S6_un._S6_u32[0]) && \
697 ((addr1)->_S6_un._S6_u8[4] == (addr2)->_S6_un._S6_u8[4]) && \
698 ((addr1)->_S6_un._S6_u8[5] == (addr2)->_S6_un._S6_u8[5]))
699
700 /*
701 * IN6_IS_ADDR_LINKSCOPE
702 * Identifies an address as being either link-local, link-local multicast or
703 * node-local multicast. All types of addresses are considered to be unique
704 * within the scope of a given link.
705 */
706 #define IN6_IS_ADDR_LINKSCOPE(addr) \
707 (IN6_IS_ADDR_LINKLOCAL(addr) || IN6_IS_ADDR_MC_LINKLOCAL(addr) || \
708 IN6_IS_ADDR_MC_NODELOCAL(addr))
709
710 /*
711 * Useful utility macros for operations with IPv6 addresses
712 * Note: These macros are NOT defined in the RFC2553 or any other
713 * standard specification and are not standard macros that portable
714 * applications should use.
715 */
716
717 /*
718 * IN6_V4MAPPED_TO_INADDR
719 * IN6_V4MAPPED_TO_IPADDR
720 * Assign a IPv4-Mapped IPv6 address to an IPv4 address.
721 * Note: These macros are NOT defined in RFC2553 or any other standard
722 * specification and are not macros that portable applications should
723 * use.
724 *
725 * void IN6_V4MAPPED_TO_INADDR(const in6_addr_t *v6, struct in_addr *v4);
726 * void IN6_V4MAPPED_TO_IPADDR(const in6_addr_t *v6, ipaddr_t v4);
727 *
728 */
729 #define IN6_V4MAPPED_TO_INADDR(v6, v4) \
730 ((v4)->s_addr = (v6)->_S6_un._S6_u32[3])
731 #define IN6_V4MAPPED_TO_IPADDR(v6, v4) \
732 ((v4) = (v6)->_S6_un._S6_u32[3])
733
734 /*
735 * IN6_INADDR_TO_V4MAPPED
736 * IN6_IPADDR_TO_V4MAPPED
737 * Assign a IPv4 address address to an IPv6 address as a IPv4-mapped
738 * address.
739 * Note: These macros are NOT defined in RFC2553 or any other standard
740 * specification and are not macros that portable applications should
741 * use.
742 *
743 * void IN6_INADDR_TO_V4MAPPED(const struct in_addr *v4, in6_addr_t *v6);
744 * void IN6_IPADDR_TO_V4MAPPED(const ipaddr_t v4, in6_addr_t *v6);
745 *
746 */
747 #ifdef _BIG_ENDIAN
748 #define IN6_INADDR_TO_V4MAPPED(v4, v6) \
749 ((v6)->_S6_un._S6_u32[3] = (v4)->s_addr, \
750 (v6)->_S6_un._S6_u32[2] = 0x0000ffff, \
751 (v6)->_S6_un._S6_u32[1] = 0, \
752 (v6)->_S6_un._S6_u32[0] = 0)
753 #define IN6_IPADDR_TO_V4MAPPED(v4, v6) \
754 ((v6)->_S6_un._S6_u32[3] = (v4), \
755 (v6)->_S6_un._S6_u32[2] = 0x0000ffff, \
756 (v6)->_S6_un._S6_u32[1] = 0, \
757 (v6)->_S6_un._S6_u32[0] = 0)
758 #else /* _BIG_ENDIAN */
759 #define IN6_INADDR_TO_V4MAPPED(v4, v6) \
760 ((v6)->_S6_un._S6_u32[3] = (v4)->s_addr, \
761 (v6)->_S6_un._S6_u32[2] = 0xffff0000U, \
762 (v6)->_S6_un._S6_u32[1] = 0, \
763 (v6)->_S6_un._S6_u32[0] = 0)
764 #define IN6_IPADDR_TO_V4MAPPED(v4, v6) \
765 ((v6)->_S6_un._S6_u32[3] = (v4), \
766 (v6)->_S6_un._S6_u32[2] = 0xffff0000U, \
767 (v6)->_S6_un._S6_u32[1] = 0, \
768 (v6)->_S6_un._S6_u32[0] = 0)
769 #endif /* _BIG_ENDIAN */
770
771 /*
772 * IN6_6TO4_TO_V4ADDR
773 * Extract the embedded IPv4 address from the prefix to a 6to4 IPv6
774 * address.
775 * Note: This macro is NOT defined in RFC2553 or any other standard
776 * specification and is not a macro that portable applications should
777 * use.
778 * Note: we don't use the IPADDR form of the macro because we need
779 * to do a bytewise copy; the V4ADDR in the 6to4 address is not
780 * 32-bit aligned.
781 *
782 * void IN6_6TO4_TO_V4ADDR(const in6_addr_t *v6, struct in_addr *v4);
783 *
784 */
785 #define IN6_6TO4_TO_V4ADDR(v6, v4) \
786 ((v4)->_S_un._S_un_b.s_b1 = (v6)->_S6_un._S6_u8[2], \
787 (v4)->_S_un._S_un_b.s_b2 = (v6)->_S6_un._S6_u8[3], \
788 (v4)->_S_un._S_un_b.s_b3 = (v6)->_S6_un._S6_u8[4], \
789 (v4)->_S_un._S_un_b.s_b4 = (v6)->_S6_un._S6_u8[5])
790
791 /*
792 * IN6_V4ADDR_TO_6TO4
793 * Given an IPv4 address and an IPv6 address for output, a 6to4 address
794 * will be created from the IPv4 Address.
795 * Note: This method for creating 6to4 addresses is not standardized
796 * outside of Solaris. The newly created 6to4 address will be of the form
797 * 2002:<V4ADDR>:<SUBNETID>::<HOSTID>, where SUBNETID will equal 0 and
798 * HOSTID will equal 1.
799 *
800 * void IN6_V4ADDR_TO_6TO4(const struct in_addr *v4, in6_addr_t *v6)
801 *
802 */
803 #ifdef _BIG_ENDIAN
804 #define IN6_V4ADDR_TO_6TO4(v4, v6) \
805 ((v6)->_S6_un._S6_u8[0] = 0x20, \
806 (v6)->_S6_un._S6_u8[1] = 0x02, \
807 (v6)->_S6_un._S6_u8[2] = (v4)->_S_un._S_un_b.s_b1, \
808 (v6)->_S6_un._S6_u8[3] = (v4)->_S_un._S_un_b.s_b2, \
809 (v6)->_S6_un._S6_u8[4] = (v4)->_S_un._S_un_b.s_b3, \
810 (v6)->_S6_un._S6_u8[5] = (v4)->_S_un._S_un_b.s_b4, \
811 (v6)->_S6_un._S6_u8[6] = 0, \
812 (v6)->_S6_un._S6_u8[7] = 0, \
813 (v6)->_S6_un._S6_u32[2] = 0, \
814 (v6)->_S6_un._S6_u32[3] = 0x00000001U)
815 #else
816 #define IN6_V4ADDR_TO_6TO4(v4, v6) \
817 ((v6)->_S6_un._S6_u8[0] = 0x20, \
818 (v6)->_S6_un._S6_u8[1] = 0x02, \
819 (v6)->_S6_un._S6_u8[2] = (v4)->_S_un._S_un_b.s_b1, \
820 (v6)->_S6_un._S6_u8[3] = (v4)->_S_un._S_un_b.s_b2, \
821 (v6)->_S6_un._S6_u8[4] = (v4)->_S_un._S_un_b.s_b3, \
822 (v6)->_S6_un._S6_u8[5] = (v4)->_S_un._S_un_b.s_b4, \
823 (v6)->_S6_un._S6_u8[6] = 0, \
824 (v6)->_S6_un._S6_u8[7] = 0, \
825 (v6)->_S6_un._S6_u32[2] = 0, \
826 (v6)->_S6_un._S6_u32[3] = 0x01000000U)
827 #endif /* _BIG_ENDIAN */
828
829 /*
830 * IN6_ARE_ADDR_EQUAL (defined in RFC2292)
831 * Compares if IPv6 addresses are equal.
832 * Note: Compares in order of high likelyhood of a miss so we minimize
833 * compares. (Current heuristic order, compare in reverse order of
834 * uint32_t units)
835 *
836 * bool IN6_ARE_ADDR_EQUAL(const struct in6_addr *,
837 * const struct in6_addr *);
838 */
839 #define IN6_ARE_ADDR_EQUAL(addr1, addr2) \
840 (((addr1)->_S6_un._S6_u32[3] == (addr2)->_S6_un._S6_u32[3]) && \
841 ((addr1)->_S6_un._S6_u32[2] == (addr2)->_S6_un._S6_u32[2]) && \
842 ((addr1)->_S6_un._S6_u32[1] == (addr2)->_S6_un._S6_u32[1]) && \
843 ((addr1)->_S6_un._S6_u32[0] == (addr2)->_S6_un._S6_u32[0]))
844
845 /*
846 * IN6_ARE_PREFIXEDADDR_EQUAL (not defined in RFCs)
847 * Compares if prefixed parts of IPv6 addresses are equal.
848 *
849 * uint32_t IN6_MASK_FROM_PREFIX(int, int);
850 * bool IN6_ARE_PREFIXEDADDR_EQUAL(const struct in6_addr *,
851 * const struct in6_addr *,
852 * int);
853 */
854 #define IN6_MASK_FROM_PREFIX(qoctet, prefix) \
855 ((((qoctet) + 1) * 32 < (prefix)) ? 0xFFFFFFFFu : \
856 ((((qoctet) * 32) >= (prefix)) ? 0x00000000u : \
857 0xFFFFFFFFu << (((qoctet) + 1) * 32 - (prefix))))
858
859 #define IN6_ARE_PREFIXEDADDR_EQUAL(addr1, addr2, prefix) \
860 (((ntohl((addr1)->_S6_un._S6_u32[0]) & \
861 IN6_MASK_FROM_PREFIX(0, prefix)) == \
862 (ntohl((addr2)->_S6_un._S6_u32[0]) & \
863 IN6_MASK_FROM_PREFIX(0, prefix))) && \
864 ((ntohl((addr1)->_S6_un._S6_u32[1]) & \
865 IN6_MASK_FROM_PREFIX(1, prefix)) == \
866 (ntohl((addr2)->_S6_un._S6_u32[1]) & \
867 IN6_MASK_FROM_PREFIX(1, prefix))) && \
868 ((ntohl((addr1)->_S6_un._S6_u32[2]) & \
869 IN6_MASK_FROM_PREFIX(2, prefix)) == \
870 (ntohl((addr2)->_S6_un._S6_u32[2]) & \
871 IN6_MASK_FROM_PREFIX(2, prefix))) && \
872 ((ntohl((addr1)->_S6_un._S6_u32[3]) & \
873 IN6_MASK_FROM_PREFIX(3, prefix)) == \
874 (ntohl((addr2)->_S6_un._S6_u32[3]) & \
875 IN6_MASK_FROM_PREFIX(3, prefix))))
876
877 #endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */
878
879
880 /*
881 * Options for use with [gs]etsockopt at the IP level.
882 *
883 * Note: Some of the IP_ namespace has conflict with and
884 * and is exposed through <xti.h>. (It also requires exposing
885 * options not implemented). The options with potential
886 * for conflicts use #ifndef guards.
887 */
888 #ifndef IP_OPTIONS
889 #define IP_OPTIONS 1 /* set/get IP per-packet options */
890 #endif
891
892 #define IP_HDRINCL 2 /* int; header is included with data (raw) */
893
894 #ifndef IP_TOS
895 #define IP_TOS 3 /* int; IP type of service and precedence */
896 #endif
897
898 #ifndef IP_TTL
899 #define IP_TTL 4 /* int; IP time to live */
900 #endif
901
902 #define IP_RECVOPTS 0x5 /* int; receive all IP options w/datagram */
903 #define IP_RECVRETOPTS 0x6 /* int; receive IP options for response */
904 #define IP_RECVDSTADDR 0x7 /* int; receive IP dst addr w/datagram */
905 #define IP_RETOPTS 0x8 /* ip_opts; set/get IP per-packet options */
906 #define IP_RECVIF 0x9 /* int; receive the inbound interface index */
907 #define IP_RECVSLLA 0xa /* sockaddr_dl; get source link layer address */
908 #define IP_RECVTTL 0xb /* uint8_t; get TTL for inbound packet */
909 #define IP_RECVTOS 0xc /* uint8_t; get TOS for inbound packet */
910
911 #define IP_MULTICAST_IF 0x10 /* set/get IP multicast interface */
912 #define IP_MULTICAST_TTL 0x11 /* set/get IP multicast timetolive */
913 #define IP_MULTICAST_LOOP 0x12 /* set/get IP multicast loopback */
914 #define IP_ADD_MEMBERSHIP 0x13 /* add an IP group membership */
915 #define IP_DROP_MEMBERSHIP 0x14 /* drop an IP group membership */
916 #define IP_BLOCK_SOURCE 0x15 /* block mcast pkts from source */
917 #define IP_UNBLOCK_SOURCE 0x16 /* unblock mcast pkts from source */
918 #define IP_ADD_SOURCE_MEMBERSHIP 0x17 /* add mcast group/source pair */
919 #define IP_DROP_SOURCE_MEMBERSHIP 0x18 /* drop mcast group/source pair */
920 #define IP_NEXTHOP 0x19 /* send directly to next hop */
921 /*
922 * IP_PKTINFO and IP_RECVPKTINFO have same value. Size of argument passed in
923 * is used to differentiate b/w the two.
924 */
925 #define IP_PKTINFO 0x1a /* specify src address and/or index */
926 #define IP_RECVPKTINFO 0x1a /* recv dest/matched addr and index */
927 #define IP_DONTFRAG 0x1b /* don't fragment packets */
928
929 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
930 /*
931 * Different preferences that can be requested from IPSEC protocols.
932 */
933 #define IP_SEC_OPT 0x22 /* Used to set IPSEC options */
934 #define IPSEC_PREF_NEVER 0x01
935 #define IPSEC_PREF_REQUIRED 0x02
936 #define IPSEC_PREF_UNIQUE 0x04
937 /*
938 * This can be used with the setsockopt() call to set per socket security
939 * options. When the application uses per-socket API, we will reflect
940 * the request on both outbound and inbound packets.
941 */
942
943 typedef struct ipsec_req {
944 uint_t ipsr_ah_req; /* AH request */
945 uint_t ipsr_esp_req; /* ESP request */
946 uint_t ipsr_self_encap_req; /* Self-Encap request */
947 uint8_t ipsr_auth_alg; /* Auth algs for AH */
948 uint8_t ipsr_esp_alg; /* Encr algs for ESP */
949 uint8_t ipsr_esp_auth_alg; /* Auth algs for ESP */
950 } ipsec_req_t;
951
952 /*
953 * MCAST_* options are protocol-independent. The actual definitions
954 * are with the v6 options below; this comment is here to note the
955 * namespace usage.
956 *
957 * #define MCAST_JOIN_GROUP 0x29
958 * #define MCAST_LEAVE_GROUP 0x2a
959 * #define MCAST_BLOCK_SOURCE 0x2b
960 * #define MCAST_UNBLOCK_SOURCE 0x2c
961 * #define MCAST_JOIN_SOURCE_GROUP 0x2d
962 * #define MCAST_LEAVE_SOURCE_GROUP 0x2e
963 */
964 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
965
966 /*
967 * SunOS private (potentially not portable) IP_ option names
968 */
969 #define IP_BOUND_IF 0x41 /* bind socket to an ifindex */
970 #define IP_UNSPEC_SRC 0x42 /* use unspecified source address */
971 #define IP_BROADCAST_TTL 0x43 /* use specific TTL for broadcast */
972 /* can be reused 0x44 */
973 #define IP_DHCPINIT_IF 0x45 /* accept all unicast DHCP traffic */
974
975 /*
976 * Option values and names (when !_XPG5) shared with <xti_inet.h>
977 */
978 #ifndef IP_REUSEADDR
979 #define IP_REUSEADDR 0x104
980 #endif
981
982 #ifndef IP_DONTROUTE
983 #define IP_DONTROUTE 0x105
984 #endif
985
986 #ifndef IP_BROADCAST
987 #define IP_BROADCAST 0x106
988 #endif
989
990 /*
991 * The following option values are reserved by <xti_inet.h>
992 *
993 * T_IP_OPTIONS 0x107 - IP per-packet options
994 * T_IP_TOS 0x108 - IP per packet type of service
995 */
996
997 /*
998 * Default value constants for multicast attributes controlled by
999 * IP*_MULTICAST_LOOP and IP*_MULTICAST_{TTL,HOPS} options.
1000 */
1001 #define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */
1002 #define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
1003
1004 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
1005 /*
1006 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
1007 */
1008 struct ip_mreq {
1009 struct in_addr imr_multiaddr; /* IP multicast address of group */
1010 struct in_addr imr_interface; /* local IP address of interface */
1011 };
1012
1013 /*
1014 * Argument structure for IP_BLOCK_SOURCE, IP_UNBLOCK_SOURCE,
1015 * IP_ADD_SOURCE_MEMBERSHIP, and IP_DROP_SOURCE_MEMBERSHIP.
1016 */
1017 struct ip_mreq_source {
1018 struct in_addr imr_multiaddr; /* IP address of group */
1019 struct in_addr imr_sourceaddr; /* IP address of source */
1020 struct in_addr imr_interface; /* IP address of interface */
1021 };
1022
1023 /*
1024 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP on
1025 * IPv6 addresses.
1026 */
1027 struct ipv6_mreq {
1028 struct in6_addr ipv6mr_multiaddr; /* IPv6 multicast addr */
1029 unsigned int ipv6mr_interface; /* interface index */
1030 };
1031
1032 /*
1033 * Use #pragma pack() construct to force 32-bit alignment on amd64.
1034 * This is needed to keep the structure size and offsets consistent
1035 * between a 32-bit app and the 64-bit amd64 kernel in structures
1036 * where 64-bit alignment would create gaps (in this case, structures
1037 * which have a uint32_t followed by a struct sockaddr_storage).
1038 */
1039 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
1040 #pragma pack(4)
1041 #endif
1042
1043 /*
1044 * Argument structure for MCAST_JOIN_GROUP and MCAST_LEAVE_GROUP.
1045 */
1046 struct group_req {
1047 uint32_t gr_interface; /* interface index */
1048 struct sockaddr_storage gr_group; /* group address */
1049 };
1050
1051 /*
1052 * Argument structure for MCAST_BLOCK_SOURCE, MCAST_UNBLOCK_SOURCE,
1053 * MCAST_JOIN_SOURCE_GROUP, MCAST_LEAVE_SOURCE_GROUP.
1054 */
1055 struct group_source_req {
1056 uint32_t gsr_interface; /* interface index */
1057 struct sockaddr_storage gsr_group; /* group address */
1058 struct sockaddr_storage gsr_source; /* source address */
1059 };
1060
1061 /*
1062 * Argument for SIOC[GS]MSFILTER ioctls
1063 */
1064 struct group_filter {
1065 uint32_t gf_interface; /* interface index */
1066 struct sockaddr_storage gf_group; /* multicast address */
1067 uint32_t gf_fmode; /* filter mode */
1068 uint32_t gf_numsrc; /* number of sources */
1069 struct sockaddr_storage gf_slist[1]; /* source address */
1070 };
1071
1072 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
1073 #pragma pack()
1074 #endif
1075
1076 #define GROUP_FILTER_SIZE(numsrc) \
1077 (sizeof (struct group_filter) - sizeof (struct sockaddr_storage) \
1078 + (numsrc) * sizeof (struct sockaddr_storage))
1079
1080 /*
1081 * Argument for SIOC[GS]IPMSFILTER ioctls (IPv4-specific)
1082 */
1083 struct ip_msfilter {
1084 struct in_addr imsf_multiaddr; /* IP multicast address of group */
1085 struct in_addr imsf_interface; /* local IP address of interface */
1086 uint32_t imsf_fmode; /* filter mode */
1087 uint32_t imsf_numsrc; /* number of sources in src_list */
1088 struct in_addr imsf_slist[1]; /* start of source list */
1089 };
1090
1091 #define IP_MSFILTER_SIZE(numsrc) \
1092 (sizeof (struct ip_msfilter) - sizeof (struct in_addr) \
1093 + (numsrc) * sizeof (struct in_addr))
1094
1095 /*
1096 * Multicast source filter manipulation functions in libsocket;
1097 * defined in RFC 3678.
1098 */
1099 int setsourcefilter(int, uint32_t, struct sockaddr *, socklen_t, uint32_t,
1100 uint_t, struct sockaddr_storage *);
1101
1102 int getsourcefilter(int, uint32_t, struct sockaddr *, socklen_t, uint32_t *,
1103 uint_t *, struct sockaddr_storage *);
1104
1105 int setipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t,
1106 uint32_t, struct in_addr *);
1107
1108 int getipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t *,
1109 uint32_t *, struct in_addr *);
1110
1111 /*
1112 * Definitions needed for [gs]etsourcefilter(), [gs]etipv4sourcefilter()
1113 */
1114 #define MCAST_INCLUDE 1
1115 #define MCAST_EXCLUDE 2
1116
1117 /*
1118 * Argument struct for IP_PKTINFO option
1119 */
1120 typedef struct in_pktinfo {
1121 unsigned int ipi_ifindex; /* send/recv interface index */
1122 struct in_addr ipi_spec_dst; /* matched source address */
1123 struct in_addr ipi_addr; /* src/dst address in IP hdr */
1124 } in_pktinfo_t;
1125
1126 /*
1127 * Argument struct for IPV6_PKTINFO option
1128 */
1129 struct in6_pktinfo {
1130 struct in6_addr ipi6_addr; /* src/dst IPv6 address */
1131 unsigned int ipi6_ifindex; /* send/recv interface index */
1132 };
1133
1134 /*
1135 * Argument struct for IPV6_MTUINFO option
1136 */
1137 struct ip6_mtuinfo {
1138 struct sockaddr_in6 ip6m_addr; /* dst address including zone ID */
1139 uint32_t ip6m_mtu; /* path MTU in host byte order */
1140 };
1141
1142 /*
1143 * IPv6 routing header types
1144 */
1145 #define IPV6_RTHDR_TYPE_0 0
1146
1147 extern socklen_t inet6_rth_space(int type, int segments);
1148 extern void *inet6_rth_init(void *bp, socklen_t bp_len, int type, int segments);
1149 extern int inet6_rth_add(void *bp, const struct in6_addr *addr);
1150 extern int inet6_rth_reverse(const void *in, void *out);
1151 extern int inet6_rth_segments(const void *bp);
1152 extern struct in6_addr *inet6_rth_getaddr(const void *bp, int index);
1153
1154 extern int inet6_opt_init(void *extbuf, socklen_t extlen);
1155 extern int inet6_opt_append(void *extbuf, socklen_t extlen, int offset,
1156 uint8_t type, socklen_t len, uint_t align, void **databufp);
1157 extern int inet6_opt_finish(void *extbuf, socklen_t extlen, int offset);
1158 extern int inet6_opt_set_val(void *databuf, int offset, void *val,
1159 socklen_t vallen);
1160 extern int inet6_opt_next(void *extbuf, socklen_t extlen, int offset,
1161 uint8_t *typep, socklen_t *lenp, void **databufp);
1162 extern int inet6_opt_find(void *extbufp, socklen_t extlen, int offset,
1163 uint8_t type, socklen_t *lenp, void **databufp);
1164 extern int inet6_opt_get_val(void *databuf, int offset, void *val,
1165 socklen_t vallen);
1166 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
1167
1168 /*
1169 * Argument structure for IP_ADD_PROXY_ADDR.
1170 * Note that this is an unstable, experimental interface. It may change
1171 * later. Don't use it unless you know what it is.
1172 */
1173 typedef struct {
1174 struct in_addr in_prefix_addr;
1175 unsigned int in_prefix_len;
1176 } in_prefix_t;
1177
1178
1179 #if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__)
1180 /*
1181 * IPv6 options
1182 */
1183 #define IPV6_UNICAST_HOPS 0x5 /* hop limit value for unicast */
1184 /* packets. */
1185 /* argument type: uint_t */
1186 #define IPV6_MULTICAST_IF 0x6 /* outgoing interface for */
1187 /* multicast packets. */
1188 /* argument type: struct in6_addr */
1189 #define IPV6_MULTICAST_HOPS 0x7 /* hop limit value to use for */
1190 /* multicast packets. */
1191 /* argument type: uint_t */
1192 #define IPV6_MULTICAST_LOOP 0x8 /* enable/disable delivery of */
1193 /* multicast packets on same socket. */
1194 /* argument type: uint_t */
1195 #define IPV6_JOIN_GROUP 0x9 /* join an IPv6 multicast group. */
1196 /* argument type: struct ipv6_mreq */
1197 #define IPV6_LEAVE_GROUP 0xa /* leave an IPv6 multicast group */
1198 /* argument type: struct ipv6_mreq */
1199
1200 /*
1201 * Other XPG6 constants.
1202 */
1203 #define INET_ADDRSTRLEN 16 /* max len IPv4 addr in ascii dotted */
1204 /* decimal notation. */
1205 #define INET6_ADDRSTRLEN 46 /* max len of IPv6 addr in ascii */
1206 /* standard colon-hex notation. */
1207
1208 #endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */
1209
1210 #if !defined(_XPG4_2) || defined(__EXTENSIONS__)
1211
1212 /*
1213 * IPV6_ADD_MEMBERSHIP and IPV6_DROP_MEMBERSHIP are being kept
1214 * for backward compatibility. They have the same meaning as IPV6_JOIN_GROUP
1215 * and IPV6_LEAVE_GROUP respectively.
1216 */
1217 #define IPV6_ADD_MEMBERSHIP 0x9 /* join an IPv6 multicast group. */
1218 /* argument type: struct ipv6_mreq */
1219 #define IPV6_DROP_MEMBERSHIP 0xa /* leave an IPv6 multicast group */
1220 /* argument type: struct ipv6_mreq */
1221
1222 #define IPV6_PKTINFO 0xb /* addr plus interface index */
1223 /* arg type: "struct in6_pktingo" - */
1224 #define IPV6_HOPLIMIT 0xc /* hoplimit for datagram */
1225 #define IPV6_NEXTHOP 0xd /* next hop address */
1226 #define IPV6_HOPOPTS 0xe /* hop by hop options */
1227 #define IPV6_DSTOPTS 0xf /* destination options - after */
1228 /* the routing header */
1229 #define IPV6_RTHDR 0x10 /* routing header */
1230 #define IPV6_RTHDRDSTOPTS 0x11 /* destination options - before */
1231 /* the routing header */
1232 #define IPV6_RECVPKTINFO 0x12 /* enable/disable IPV6_PKTINFO */
1233 #define IPV6_RECVHOPLIMIT 0x13 /* enable/disable IPV6_HOPLIMIT */
1234 #define IPV6_RECVHOPOPTS 0x14 /* enable/disable IPV6_HOPOPTS */
1235
1236 /*
1237 * This options exists for backwards compatability and should no longer be
1238 * used. Use IPV6_RECVDSTOPTS instead.
1239 */
1240 #define _OLD_IPV6_RECVDSTOPTS 0x15
1241
1242 #define IPV6_RECVRTHDR 0x16 /* enable/disable IPV6_RTHDR */
1243
1244 /*
1245 * enable/disable IPV6_RTHDRDSTOPTS. Now obsolete. IPV6_RECVDSTOPTS enables
1246 * the receipt of both headers.
1247 */
1248 #define IPV6_RECVRTHDRDSTOPTS 0x17
1249
1250 #define IPV6_CHECKSUM 0x18 /* Control checksum on raw sockets */
1251 #define IPV6_RECVTCLASS 0x19 /* enable/disable IPV6_TCLASS */
1252 #define IPV6_USE_MIN_MTU 0x20 /* send packets with minimum MTU */
1253 #define IPV6_DONTFRAG 0x21 /* don't fragment packets */
1254 #define IPV6_SEC_OPT 0x22 /* Used to set IPSEC options */
1255 #define IPV6_SRC_PREFERENCES 0x23 /* Control socket's src addr select */
1256 #define IPV6_RECVPATHMTU 0x24 /* receive PMTU info */
1257 #define IPV6_PATHMTU 0x25 /* get the PMTU */
1258 #define IPV6_TCLASS 0x26 /* traffic class */
1259 #define IPV6_V6ONLY 0x27 /* v6 only socket option */
1260
1261 /*
1262 * enable/disable receipt of both both IPV6_DSTOPTS headers.
1263 */
1264 #define IPV6_RECVDSTOPTS 0x28
1265
1266 /*
1267 * protocol-independent multicast membership options.
1268 */
1269 #define MCAST_JOIN_GROUP 0x29 /* join group for all sources */
1270 #define MCAST_LEAVE_GROUP 0x2a /* leave group */
1271 #define MCAST_BLOCK_SOURCE 0x2b /* block specified source */
1272 #define MCAST_UNBLOCK_SOURCE 0x2c /* unblock specified source */
1273 #define MCAST_JOIN_SOURCE_GROUP 0x2d /* join group for specified source */
1274 #define MCAST_LEAVE_SOURCE_GROUP 0x2e /* leave source/group pair */
1275
1276 /* 32Bit field for IPV6_SRC_PREFERENCES */
1277 #define IPV6_PREFER_SRC_HOME 0x00000001
1278 #define IPV6_PREFER_SRC_COA 0x00000002
1279 #define IPV6_PREFER_SRC_PUBLIC 0x00000004
1280 #define IPV6_PREFER_SRC_TMP 0x00000008
1281 #define IPV6_PREFER_SRC_NONCGA 0x00000010
1282 #define IPV6_PREFER_SRC_CGA 0x00000020
1283
1284 #define IPV6_PREFER_SRC_MIPMASK (IPV6_PREFER_SRC_HOME | IPV6_PREFER_SRC_COA)
1285 #define IPV6_PREFER_SRC_MIPDEFAULT IPV6_PREFER_SRC_HOME
1286 #define IPV6_PREFER_SRC_TMPMASK (IPV6_PREFER_SRC_PUBLIC | IPV6_PREFER_SRC_TMP)
1287 #define IPV6_PREFER_SRC_TMPDEFAULT IPV6_PREFER_SRC_PUBLIC
1288 #define IPV6_PREFER_SRC_CGAMASK (IPV6_PREFER_SRC_NONCGA | IPV6_PREFER_SRC_CGA)
1289 #define IPV6_PREFER_SRC_CGADEFAULT IPV6_PREFER_SRC_NONCGA
1290
1291 #define IPV6_PREFER_SRC_MASK (IPV6_PREFER_SRC_MIPMASK |\
1292 IPV6_PREFER_SRC_TMPMASK | IPV6_PREFER_SRC_CGAMASK)
1293
1294 #define IPV6_PREFER_SRC_DEFAULT (IPV6_PREFER_SRC_MIPDEFAULT |\
1295 IPV6_PREFER_SRC_TMPDEFAULT | IPV6_PREFER_SRC_CGADEFAULT)
1296
1297 /*
1298 * SunOS private (potentially not portable) IPV6_ option names
1299 */
1300 #define IPV6_BOUND_IF 0x41 /* bind to an ifindex */
1301 #define IPV6_UNSPEC_SRC 0x42 /* source of packets set to */
1302 /* unspecified (all zeros) */
1303
1304 /*
1305 * Miscellaneous IPv6 constants.
1306 */
1307 #define IPV6_PAD1_OPT 0 /* pad byte in IPv6 extension hdrs */
1308
1309 #endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
1310
1311 /*
1312 * Extern declarations for pre-defined global const variables
1313 */
1314 #if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__)
1315 #ifndef _KERNEL
1316 #ifdef __STDC__
1317 extern const struct in6_addr in6addr_any;
1318 extern const struct in6_addr in6addr_loopback;
1319 #else
1320 extern struct in6_addr in6addr_any;
1321 extern struct in6_addr in6addr_loopback;
1322 #endif
1323 #endif
1324 #endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */
1325
1326 #ifdef __cplusplus
1327 }
1328 #endif
1329
1330 #endif /* _NETINET_IN_H */