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 */
7/*
8 * Copyright (c) 1982, 1986 Regents of the University of California.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms are permitted
12 * provided that this notice is preserved and that due credit is given
13 * to the University of California at Berkeley. The name of the University
14 * may not be used to endorse or promote products derived from this
15 * software without specific prior written permission. This software
16 * is provided ``as is'' without express or implied warranty.
17 */
18
19/*
20 * Constants and structures defined by the internet system,
21 * according to following documents
22 *
23 * Internet ASSIGNED NUMBERS (RFC1700) and its successors:
24 *	http://www.iana.org/assignments/protocol-numbers
25 *	http://www.iana.org/assignments/port-numbers
26 * Basic Socket Interface Extensions for IPv6 (RFC2133 and its successors)
27 *
28 */
29
30#ifndef _NETINET_IN_H
31#define	_NETINET_IN_H
32
33#include <sys/feature_tests.h>
34
35#ifdef	__cplusplus
36extern "C" {
37#endif
38
39#include <sys/types.h>
40
41#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
42#include <sys/socket_impl.h>
43#endif	/* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
44
45#ifndef _SOCKLEN_T
46#define	_SOCKLEN_T
47
48/*
49 * The socklen definitions are reproduced here from sys/socket.h so as to
50 * not introduce that namespace into existing users of netinet/in.h.
51 */
52#if defined(_XPG4_2) && !defined(_XPG5) && !defined(_LP64)
53typedef	size_t		socklen_t;
54#else
55typedef	uint32_t	socklen_t;
56#endif	/* defined(_XPG4_2) && !defined(_XPG5) && !defined(_LP64) */
57
58#if defined(_XPG4_2) || defined(_BOOT)
59typedef	socklen_t	*Psocklen_t;
60#else
61typedef	void		*Psocklen_t;
62#endif	/* defined(_XPG4_2) || defined(_BOOT) */
63
64#endif /* _SOCKLEN_T */
65
66/*
67 * Symbols such as htonl() are required to be exposed through this file,
68 * per XNS Issue 5. This is achieved by inclusion of <sys/byteorder.h>
69 */
70#if !defined(_XPG4_2) || defined(__EXTENSIONS__) || defined(_XPG5)
71#include <sys/byteorder.h>
72#endif
73
74#ifndef _IN_PORT_T
75#define	_IN_PORT_T
76typedef	uint16_t	in_port_t;
77#endif
78
79/*
80 * Note: IPv4 address data structures usage conventions.
81 * The "in_addr_t" type below (required by Unix standards)
82 * is NOT a typedef of "struct in_addr" and violates the usual
83 * conventions where "struct <name>" and <name>_t are corresponding
84 * typedefs.
85 * To minimize confusion, kernel data structures/usage prefers use
86 * of "ipaddr_t" as atomic uint32_t type and avoid using "in_addr_t"
87 * The user level APIs continue to follow the historic popular
88 * practice of using "struct in_addr".
89 */
90#ifndef _IN_ADDR_T
91#define	_IN_ADDR_T
92typedef	uint32_t	in_addr_t;
93#endif
94
95#ifndef _IPADDR_T
96#define	_IPADDR_T
97typedef uint32_t ipaddr_t;
98#endif
99
100#if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__)
101
102struct in6_addr {
103	union {
104		/*
105		 * Note: Static initalizers of "union" type assume
106		 * the constant on the RHS is the type of the first member
107		 * of union.
108		 * To make static initializers (and efficient usage) work,
109		 * the order of members exposed to user and kernel view of
110		 * this data structure is different.
111		 * User environment sees specified uint8_t type as first
112		 * member whereas kernel sees most efficient type as
113		 * first member.
114		 */
115#ifdef _KERNEL
116		uint32_t	_S6_u32[4];	/* IPv6 address */
117		uint16_t	_S6_u16[8];	/* IPv6 address */
118		uint8_t		_S6_u8[16];	/* IPv6 address */
119#else
120		uint8_t		_S6_u8[16];	/* IPv6 address */
121		uint16_t	_S6_u16[8];	/* IPv6 address */
122		uint32_t	_S6_u32[4];	/* IPv6 address */
123#endif
124		uint32_t	__S6_align;	/* Align on 32 bit boundary */
125	} _S6_un;
126};
127#define	s6_addr		_S6_un._S6_u8
128
129#ifdef _KERNEL
130#define	s6_addr8	_S6_un._S6_u8
131#define	s6_addr16	_S6_un._S6_u16
132#define	s6_addr32	_S6_un._S6_u32
133#endif
134
135typedef struct in6_addr in6_addr_t;
136
137#endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */
138
139#ifndef _SA_FAMILY_T
140#define	_SA_FAMILY_T
141typedef	uint16_t	sa_family_t;
142#endif
143
144/*
145 * Protocols
146 *
147 * Some of these constant names are copied for the DTrace IP provider in
148 * usr/src/lib/libdtrace/common/{ip.d.in, ip.sed.in}, which should be kept
149 * in sync.
150 */
151#define	IPPROTO_IP		0		/* dummy for IP */
152#define	IPPROTO_HOPOPTS		0		/* Hop by hop header for IPv6 */
153#define	IPPROTO_ICMP		1		/* control message protocol */
154#define	IPPROTO_IGMP		2		/* group control protocol */
155#define	IPPROTO_GGP		3		/* gateway^2 (deprecated) */
156#define	IPPROTO_ENCAP		4		/* IP in IP encapsulation */
157#define	IPPROTO_TCP		6		/* tcp */
158#define	IPPROTO_EGP		8		/* exterior gateway protocol */
159#define	IPPROTO_PUP		12		/* pup */
160#define	IPPROTO_UDP		17		/* user datagram protocol */
161#define	IPPROTO_IDP		22		/* xns idp */
162#define	IPPROTO_IPV6		41		/* IPv6 encapsulated in IP */
163#define	IPPROTO_ROUTING		43		/* Routing header for IPv6 */
164#define	IPPROTO_FRAGMENT	44		/* Fragment header for IPv6 */
165#define	IPPROTO_RSVP		46		/* rsvp */
166#define	IPPROTO_ESP		50		/* IPsec Encap. Sec. Payload */
167#define	IPPROTO_AH		51		/* IPsec Authentication Hdr. */
168#define	IPPROTO_ICMPV6		58		/* ICMP for IPv6 */
169#define	IPPROTO_NONE		59		/* No next header for IPv6 */
170#define	IPPROTO_DSTOPTS		60		/* Destination options */
171#define	IPPROTO_HELLO		63		/* "hello" routing protocol */
172#define	IPPROTO_ND		77		/* UNOFFICIAL net disk proto */
173#define	IPPROTO_EON		80		/* ISO clnp */
174#define	IPPROTO_OSPF		89		/* OSPF */
175#define	IPPROTO_PIM		103		/* PIM routing protocol */
176#define	IPPROTO_SCTP		132		/* Stream Control */
177						/* Transmission Protocol */
178
179#define	IPPROTO_RAW		255		/* raw IP packet */
180#define	IPPROTO_MAX		256
181
182#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
183#define	PROTO_SDP		257		/* Sockets Direct Protocol */
184#endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
185
186/*
187 * Port/socket numbers: network standard functions
188 *
189 * Entries should exist here for each port number compiled into an ON
190 * component, such as snoop.
191 */
192#define	IPPORT_ECHO		7
193#define	IPPORT_DISCARD		9
194#define	IPPORT_SYSTAT		11
195#define	IPPORT_DAYTIME		13
196#define	IPPORT_NETSTAT		15
197#define	IPPORT_CHARGEN		19
198#define	IPPORT_FTP		21
199#define	IPPORT_TELNET		23
200#define	IPPORT_SMTP		25
201#define	IPPORT_TIMESERVER	37
202#define	IPPORT_NAMESERVER	42
203#define	IPPORT_WHOIS		43
204#define	IPPORT_DOMAIN		53
205#define	IPPORT_MDNS		5353
206#define	IPPORT_MTP		57
207
208/*
209 * Port/socket numbers: host specific functions
210 */
211#define	IPPORT_BOOTPS		67
212#define	IPPORT_BOOTPC		68
213#define	IPPORT_TFTP		69
214#define	IPPORT_RJE		77
215#define	IPPORT_FINGER		79
216#define	IPPORT_HTTP		80
217#define	IPPORT_HTTP_ALT		8080
218#define	IPPORT_TTYLINK		87
219#define	IPPORT_SUPDUP		95
220#define	IPPORT_NTP		123
221#define	IPPORT_NETBIOS_NS	137
222#define	IPPORT_NETBIOS_DGM	138
223#define	IPPORT_NETBIOS_SSN	139
224#define	IPPORT_LDAP		389
225#define	IPPORT_SLP		427
226#define	IPPORT_MIP		434
227#define	IPPORT_SMB		445		/* a.k.a. microsoft-ds */
228
229/*
230 * Internet Key Exchange (IKE) ports
231 */
232#define	IPPORT_IKE		500
233#define	IPPORT_IKE_NATT		4500
234
235/*
236 * UNIX TCP sockets
237 */
238#define	IPPORT_EXECSERVER	512
239#define	IPPORT_LOGINSERVER	513
240#define	IPPORT_CMDSERVER	514
241#define	IPPORT_PRINTER		515
242#define	IPPORT_EFSSERVER	520
243
244/*
245 * UNIX UDP sockets
246 */
247#define	IPPORT_BIFFUDP		512
248#define	IPPORT_WHOSERVER	513
249#define	IPPORT_SYSLOG		514
250#define	IPPORT_TALK		517
251#define	IPPORT_ROUTESERVER	520
252#define	IPPORT_RIPNG		521
253
254/*
255 * DHCPv6 UDP ports
256 */
257#define	IPPORT_DHCPV6C		546
258#define	IPPORT_DHCPV6S		547
259
260#define	IPPORT_SOCKS		1080
261
262/*
263 * Ports < IPPORT_RESERVED are reserved for
264 * privileged processes (e.g. root).
265 * Ports > IPPORT_USERRESERVED are reserved
266 * for servers, not necessarily privileged.
267 */
268#define	IPPORT_RESERVED		1024
269#define	IPPORT_USERRESERVED	5000
270
271/*
272 * Link numbers
273 */
274#define	IMPLINK_IP		155
275#define	IMPLINK_LOWEXPER	156
276#define	IMPLINK_HIGHEXPER	158
277
278/*
279 * IPv4 Internet address
280 *	This definition contains obsolete fields for compatibility
281 *	with SunOS 3.x and 4.2bsd.  The presence of subnets renders
282 *	divisions into fixed fields misleading at best.  New code
283 *	should use only the s_addr field.
284 */
285
286#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
287#define	_S_un_b	S_un_b
288#define	_S_un_w	S_un_w
289#define	_S_addr	S_addr
290#define	_S_un	S_un
291#endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
292
293struct in_addr {
294	union {
295		struct { uint8_t s_b1, s_b2, s_b3, s_b4; } _S_un_b;
296		struct { uint16_t s_w1, s_w2; } _S_un_w;
297#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
298		uint32_t _S_addr;
299#else
300		in_addr_t _S_addr;
301#endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
302	} _S_un;
303#define	s_addr	_S_un._S_addr		/* should be used for all code */
304#define	s_host	_S_un._S_un_b.s_b2	/* OBSOLETE: host on imp */
305#define	s_net	_S_un._S_un_b.s_b1	/* OBSOLETE: network */
306#define	s_imp	_S_un._S_un_w.s_w2	/* OBSOLETE: imp */
307#define	s_impno	_S_un._S_un_b.s_b4	/* OBSOLETE: imp # */
308#define	s_lh	_S_un._S_un_b.s_b3	/* OBSOLETE: logical host */
309};
310
311/*
312 * Definitions of bits in internet address integers.
313 * On subnets, the decomposition of addresses to host and net parts
314 * is done according to subnet mask, not the masks here.
315 *
316 * Note that with the introduction of CIDR, IN_CLASSA, IN_CLASSB,
317 * IN_CLASSC, IN_CLASSD and IN_CLASSE macros have become "de-facto
318 * obsolete". IN_MULTICAST macro should be used to test if a address
319 * is a multicast address.
320 */
321#define	IN_CLASSA(i)		(((i) & 0x80000000U) == 0)
322#define	IN_CLASSA_NET		0xff000000U
323#define	IN_CLASSA_NSHIFT	24
324#define	IN_CLASSA_HOST		0x00ffffffU
325#define	IN_CLASSA_MAX		128
326
327#define	IN_CLASSB(i)		(((i) & 0xc0000000U) == 0x80000000U)
328#define	IN_CLASSB_NET		0xffff0000U
329#define	IN_CLASSB_NSHIFT	16
330#define	IN_CLASSB_HOST		0x0000ffffU
331#define	IN_CLASSB_MAX		65536
332
333#define	IN_CLASSC(i)		(((i) & 0xe0000000U) == 0xc0000000U)
334#define	IN_CLASSC_NET		0xffffff00U
335#define	IN_CLASSC_NSHIFT	8
336#define	IN_CLASSC_HOST		0x000000ffU
337
338#define	IN_CLASSD(i)		(((i) & 0xf0000000U) == 0xe0000000U)
339#define	IN_CLASSD_NET		0xf0000000U	/* These aren't really  */
340#define	IN_CLASSD_NSHIFT	28		/* net and host fields, but */
341#define	IN_CLASSD_HOST		0x0fffffffU	/* routing needn't know */
342
343#define	IN_CLASSE(i)		(((i) & 0xf0000000U) == 0xf0000000U)
344#define	IN_CLASSE_NET		0xffffffffU
345
346#define	IN_MULTICAST(i)		IN_CLASSD(i)
347
348/*
349 * We have removed CLASS E checks from the kernel
350 * But we preserve these defines for userland in order
351 * to avoid compile  breakage of some 3rd party piece of software
352 */
353#ifndef _KERNEL
354#define	IN_EXPERIMENTAL(i)	(((i) & 0xe0000000U) == 0xe0000000U)
355#define	IN_BADCLASS(i)		(((i) & 0xf0000000U) == 0xf0000000U)
356#endif
357
358#define	INADDR_ANY		0x00000000U
359#define	INADDR_LOOPBACK		0x7F000001U
360#define	INADDR_BROADCAST	0xffffffffU	/* must be masked */
361#define	INADDR_NONE		0xffffffffU
362
363#define	INADDR_UNSPEC_GROUP	0xe0000000U	/* 224.0.0.0   */
364#define	INADDR_ALLHOSTS_GROUP	0xe0000001U	/* 224.0.0.1   */
365#define	INADDR_ALLRTRS_GROUP	0xe0000002U	/* 224.0.0.2   */
366#define	INADDR_ALLRPTS_GROUP	0xe0000016U	/* 224.0.0.22, IGMPv3 */
367#define	INADDR_MAX_LOCAL_GROUP	0xe00000ffU	/* 224.0.0.255 */
368
369/* Scoped IPv4 prefixes (in host byte-order) */
370#define	IN_AUTOCONF_NET		0xa9fe0000U	/* 169.254/16 */
371#define	IN_AUTOCONF_MASK	0xffff0000U
372#define	IN_PRIVATE8_NET		0x0a000000U	/* 10/8 */
373#define	IN_PRIVATE8_MASK	0xff000000U
374#define	IN_PRIVATE12_NET	0xac100000U	/* 172.16/12 */
375#define	IN_PRIVATE12_MASK	0xfff00000U
376#define	IN_PRIVATE16_NET	0xc0a80000U	/* 192.168/16 */
377#define	IN_PRIVATE16_MASK	0xffff0000U
378
379/* RFC 3927 IPv4 link local address (i in host byte-order) */
380#define	IN_LINKLOCAL(i)		(((i) & IN_AUTOCONF_MASK) == IN_AUTOCONF_NET)
381
382/* Well known 6to4 Relay Router Anycast address defined in RFC 3068 */
383#if !defined(_XPG4_2) || !defined(__EXTENSIONS__)
384#define	INADDR_6TO4RRANYCAST	0xc0586301U 	/* 192.88.99.1 */
385#endif	/* !defined(_XPG4_2) || !defined(__EXTENSIONS__) */
386
387#define	IN_LOOPBACKNET		127			/* official! */
388
389/*
390 * Define a macro to stuff the loopback address into an Internet address
391 */
392#if !defined(_XPG4_2) || !defined(__EXTENSIONS__)
393#define	IN_SET_LOOPBACK_ADDR(a) \
394	{ (a)->sin_addr.s_addr  = htonl(INADDR_LOOPBACK); \
395	(a)->sin_family = AF_INET; }
396#endif /* !defined(_XPG4_2) || !defined(__EXTENSIONS__) */
397
398/*
399 * IPv4 Socket address.
400 */
401struct sockaddr_in {
402	sa_family_t	sin_family;
403	in_port_t	sin_port;
404	struct	in_addr sin_addr;
405#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
406	char		sin_zero[8];
407#else
408	unsigned char	sin_zero[8];
409#endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
410};
411
412#if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__)
413/*
414 * IPv6 socket address.
415 */
416struct sockaddr_in6 {
417	sa_family_t	sin6_family;
418	in_port_t	sin6_port;
419	uint32_t	sin6_flowinfo;
420	struct in6_addr	sin6_addr;
421	uint32_t	sin6_scope_id;  /* Depends on scope of sin6_addr */
422	uint32_t	__sin6_src_id;	/* Impl. specific - UDP replies */
423};
424
425/*
426 * Macros for accessing the traffic class and flow label fields from
427 * sin6_flowinfo.
428 * These are designed to be applied to a 32-bit value.
429 */
430#ifdef _BIG_ENDIAN
431
432/* masks */
433#define	IPV6_FLOWINFO_FLOWLABEL			0x000fffffU
434#define	IPV6_FLOWINFO_TCLASS			0x0ff00000U
435
436#else /* _BIG_ENDIAN */
437
438/* masks */
439#define	IPV6_FLOWINFO_FLOWLABEL			0xffff0f00U
440#define	IPV6_FLOWINFO_TCLASS			0x0000f00fU
441
442#endif	/* _BIG_ENDIAN */
443
444/*
445 * Note: Macros IN6ADDR_ANY_INIT and IN6ADDR_LOOPBACK_INIT are for
446 * use as RHS of Static initializers of "struct in6_addr" (or in6_addr_t)
447 * only. They need to be different for User/Kernel versions because union
448 * component data structure is defined differently (it is identical at
449 * binary representation level).
450 *
451 * const struct in6_addr IN6ADDR_ANY_INIT;
452 * const struct in6_addr IN6ADDR_LOOPBACK_INIT;
453 */
454
455
456#ifdef _KERNEL
457#define	IN6ADDR_ANY_INIT		{ 0, 0, 0, 0 }
458
459#ifdef _BIG_ENDIAN
460#define	IN6ADDR_LOOPBACK_INIT		{ 0, 0, 0, 0x00000001U }
461#else /* _BIG_ENDIAN */
462#define	IN6ADDR_LOOPBACK_INIT		{ 0, 0, 0, 0x01000000U }
463#endif /* _BIG_ENDIAN */
464
465#else
466
467#define	IN6ADDR_ANY_INIT	    {	0, 0, 0, 0,	\
468					0, 0, 0, 0,	\
469					0, 0, 0, 0, 	\
470					0, 0, 0, 0 }
471
472#define	IN6ADDR_LOOPBACK_INIT	    {	0, 0, 0, 0,	\
473					0, 0, 0, 0,	\
474					0, 0, 0, 0,	\
475					0, 0, 0, 0x1U }
476#endif /* _KERNEL */
477
478/*
479 * RFC 2553 specifies the following macros. Their type is defined
480 * as "int" in the RFC but they only have boolean significance
481 * (zero or non-zero). For the purposes of our comment notation,
482 * we assume a hypothetical type "bool" defined as follows to
483 * write the prototypes assumed for macros in our comments better.
484 *
485 * typedef int bool;
486 */
487
488/*
489 * IN6 macros used to test for special IPv6 addresses
490 * (Mostly from spec)
491 *
492 * bool  IN6_IS_ADDR_UNSPECIFIED (const struct in6_addr *);
493 * bool  IN6_IS_ADDR_LOOPBACK    (const struct in6_addr *);
494 * bool  IN6_IS_ADDR_MULTICAST   (const struct in6_addr *);
495 * bool  IN6_IS_ADDR_LINKLOCAL   (const struct in6_addr *);
496 * bool  IN6_IS_ADDR_SITELOCAL   (const struct in6_addr *);
497 * bool  IN6_IS_ADDR_V4MAPPED    (const struct in6_addr *);
498 * bool  IN6_IS_ADDR_V4MAPPED_ANY(const struct in6_addr *); -- Not from RFC2553
499 * bool  IN6_IS_ADDR_V4COMPAT    (const struct in6_addr *);
500 * bool  IN6_IS_ADDR_MC_RESERVED (const struct in6_addr *); -- Not from RFC2553
501 * bool  IN6_IS_ADDR_MC_NODELOCAL(const struct in6_addr *);
502 * bool  IN6_IS_ADDR_MC_LINKLOCAL(const struct in6_addr *);
503 * bool  IN6_IS_ADDR_MC_SITELOCAL(const struct in6_addr *);
504 * bool  IN6_IS_ADDR_MC_ORGLOCAL (const struct in6_addr *);
505 * bool  IN6_IS_ADDR_MC_GLOBAL   (const struct in6_addr *);
506 * bool  IN6_IS_ADDR_6TO4	 (const struct in6_addr *); -- Not from RFC2553
507 * bool  IN6_ARE_6TO4_PREFIX_EQUAL(const struct in6_addr *,
508 *	     const struct in6_addr *);			    -- Not from RFC2553
509 * bool  IN6_IS_ADDR_LINKSCOPE	 (const struct in6addr  *); -- Not from RFC2553
510 */
511
512#define	IN6_IS_ADDR_UNSPECIFIED(addr) \
513	(((addr)->_S6_un._S6_u32[3] == 0) && \
514	((addr)->_S6_un._S6_u32[2] == 0) && \
515	((addr)->_S6_un._S6_u32[1] == 0) && \
516	((addr)->_S6_un._S6_u32[0] == 0))
517
518#ifdef _BIG_ENDIAN
519#define	IN6_IS_ADDR_LOOPBACK(addr) \
520	(((addr)->_S6_un._S6_u32[3] == 0x00000001) && \
521	((addr)->_S6_un._S6_u32[2] == 0) && \
522	((addr)->_S6_un._S6_u32[1] == 0) && \
523	((addr)->_S6_un._S6_u32[0] == 0))
524#else /* _BIG_ENDIAN */
525#define	IN6_IS_ADDR_LOOPBACK(addr) \
526	(((addr)->_S6_un._S6_u32[3] == 0x01000000) && \
527	((addr)->_S6_un._S6_u32[2] == 0) && \
528	((addr)->_S6_un._S6_u32[1] == 0) && \
529	((addr)->_S6_un._S6_u32[0] == 0))
530#endif /* _BIG_ENDIAN */
531
532#ifdef _BIG_ENDIAN
533#define	IN6_IS_ADDR_MULTICAST(addr) \
534	(((addr)->_S6_un._S6_u32[0] & 0xff000000) == 0xff000000)
535#else /* _BIG_ENDIAN */
536#define	IN6_IS_ADDR_MULTICAST(addr) \
537	(((addr)->_S6_un._S6_u32[0] & 0x000000ff) == 0x000000ff)
538#endif /* _BIG_ENDIAN */
539
540#ifdef _BIG_ENDIAN
541#define	IN6_IS_ADDR_LINKLOCAL(addr) \
542	(((addr)->_S6_un._S6_u32[0] & 0xffc00000) == 0xfe800000)
543#else /* _BIG_ENDIAN */
544#define	IN6_IS_ADDR_LINKLOCAL(addr) \
545	(((addr)->_S6_un._S6_u32[0] & 0x0000c0ff) == 0x000080fe)
546#endif /* _BIG_ENDIAN */
547
548#ifdef _BIG_ENDIAN
549#define	IN6_IS_ADDR_SITELOCAL(addr) \
550	(((addr)->_S6_un._S6_u32[0] & 0xffc00000) == 0xfec00000)
551#else /* _BIG_ENDIAN */
552#define	IN6_IS_ADDR_SITELOCAL(addr) \
553	(((addr)->_S6_un._S6_u32[0] & 0x0000c0ff) == 0x0000c0fe)
554#endif /* _BIG_ENDIAN */
555
556#ifdef _BIG_ENDIAN
557#define	IN6_IS_ADDR_V4MAPPED(addr) \
558	(((addr)->_S6_un._S6_u32[2] == 0x0000ffff) && \
559	((addr)->_S6_un._S6_u32[1] == 0) && \
560	((addr)->_S6_un._S6_u32[0] == 0))
561#else  /* _BIG_ENDIAN */
562#define	IN6_IS_ADDR_V4MAPPED(addr) \
563	(((addr)->_S6_un._S6_u32[2] == 0xffff0000U) && \
564	((addr)->_S6_un._S6_u32[1] == 0) && \
565	((addr)->_S6_un._S6_u32[0] == 0))
566#endif /* _BIG_ENDIAN */
567
568/*
569 * IN6_IS_ADDR_V4MAPPED - A IPv4 mapped INADDR_ANY
570 * Note: This macro is currently NOT defined in RFC2553 specification
571 * and not a standard macro that portable applications should use.
572 */
573#ifdef _BIG_ENDIAN
574#define	IN6_IS_ADDR_V4MAPPED_ANY(addr) \
575	(((addr)->_S6_un._S6_u32[3] == 0) && \
576	((addr)->_S6_un._S6_u32[2] == 0x0000ffff) && \
577	((addr)->_S6_un._S6_u32[1] == 0) && \
578	((addr)->_S6_un._S6_u32[0] == 0))
579#else  /* _BIG_ENDIAN */
580#define	IN6_IS_ADDR_V4MAPPED_ANY(addr) \
581	(((addr)->_S6_un._S6_u32[3] == 0) && \
582	((addr)->_S6_un._S6_u32[2] == 0xffff0000U) && \
583	((addr)->_S6_un._S6_u32[1] == 0) && \
584	((addr)->_S6_un._S6_u32[0] == 0))
585#endif /* _BIG_ENDIAN */
586
587/* Exclude loopback and unspecified address */
588#ifdef _BIG_ENDIAN
589#define	IN6_IS_ADDR_V4COMPAT(addr) \
590	(((addr)->_S6_un._S6_u32[2] == 0) && \
591	((addr)->_S6_un._S6_u32[1] == 0) && \
592	((addr)->_S6_un._S6_u32[0] == 0) && \
593	!((addr)->_S6_un._S6_u32[3] == 0) && \
594	!((addr)->_S6_un._S6_u32[3] == 0x00000001))
595
596#else /* _BIG_ENDIAN */
597#define	IN6_IS_ADDR_V4COMPAT(addr) \
598	(((addr)->_S6_un._S6_u32[2] == 0) && \
599	((addr)->_S6_un._S6_u32[1] == 0) && \
600	((addr)->_S6_un._S6_u32[0] == 0) && \
601	!((addr)->_S6_un._S6_u32[3] == 0) && \
602	!((addr)->_S6_un._S6_u32[3] == 0x01000000))
603#endif /* _BIG_ENDIAN */
604
605/*
606 * Note:
607 * IN6_IS_ADDR_MC_RESERVED macro is currently NOT defined in RFC2553
608 * specification and not a standard macro that portable applications
609 * should use.
610 */
611#ifdef _BIG_ENDIAN
612#define	IN6_IS_ADDR_MC_RESERVED(addr) \
613	(((addr)->_S6_un._S6_u32[0] & 0xff0f0000) == 0xff000000)
614
615#else  /* _BIG_ENDIAN */
616#define	IN6_IS_ADDR_MC_RESERVED(addr) \
617	(((addr)->_S6_un._S6_u32[0] & 0x00000fff) == 0x000000ff)
618#endif /* _BIG_ENDIAN */
619
620#ifdef _BIG_ENDIAN
621#define	IN6_IS_ADDR_MC_NODELOCAL(addr) \
622	(((addr)->_S6_un._S6_u32[0] & 0xff0f0000) == 0xff010000)
623#else  /* _BIG_ENDIAN */
624#define	IN6_IS_ADDR_MC_NODELOCAL(addr) \
625	(((addr)->_S6_un._S6_u32[0] & 0x00000fff) == 0x000001ff)
626#endif /* _BIG_ENDIAN */
627
628#ifdef _BIG_ENDIAN
629#define	IN6_IS_ADDR_MC_LINKLOCAL(addr) \
630	(((addr)->_S6_un._S6_u32[0] & 0xff0f0000) == 0xff020000)
631#else  /* _BIG_ENDIAN */
632#define	IN6_IS_ADDR_MC_LINKLOCAL(addr) \
633	(((addr)->_S6_un._S6_u32[0] & 0x00000fff) == 0x000002ff)
634#endif /* _BIG_ENDIAN */
635
636#ifdef _BIG_ENDIAN
637#define	IN6_IS_ADDR_MC_SITELOCAL(addr) \
638	(((addr)->_S6_un._S6_u32[0] & 0xff0f0000) == 0xff050000)
639#else  /* _BIG_ENDIAN */
640#define	IN6_IS_ADDR_MC_SITELOCAL(addr) \
641	(((addr)->_S6_un._S6_u32[0] & 0x00000fff) == 0x000005ff)
642#endif /* _BIG_ENDIAN */
643
644#ifdef _BIG_ENDIAN
645#define	IN6_IS_ADDR_MC_ORGLOCAL(addr) \
646	(((addr)->_S6_un._S6_u32[0] & 0xff0f0000) == 0xff080000)
647#else  /* _BIG_ENDIAN */
648#define	IN6_IS_ADDR_MC_ORGLOCAL(addr) \
649	(((addr)->_S6_un._S6_u32[0] & 0x00000fff) == 0x000008ff)
650#endif /* _BIG_ENDIAN */
651
652#ifdef _BIG_ENDIAN
653#define	IN6_IS_ADDR_MC_GLOBAL(addr) \
654	(((addr)->_S6_un._S6_u32[0] & 0xff0f0000) == 0xff0e0000)
655#else /* _BIG_ENDIAN */
656#define	IN6_IS_ADDR_MC_GLOBAL(addr) \
657	(((addr)->_S6_un._S6_u32[0] & 0x00000fff) == 0x00000eff)
658#endif /* _BIG_ENDIAN */
659
660/*
661 * The IN6_IS_ADDR_MC_SOLICITEDNODE macro is not defined in any standard or
662 * RFC, and shouldn't be used by portable applications.  It is used to see
663 * if an address is a solicited-node multicast address, which is prefixed
664 * with ff02:0:0:0:0:1:ff00::/104.
665 */
666#ifdef _BIG_ENDIAN
667#define	IN6_IS_ADDR_MC_SOLICITEDNODE(addr)			\
668	(((addr)->_S6_un._S6_u32[0] == 0xff020000) &&		\
669	((addr)->_S6_un._S6_u32[1] == 0x00000000) &&		\
670	((addr)->_S6_un._S6_u32[2] == 0x00000001) &&		\
671	(((addr)->_S6_un._S6_u32[3] & 0xff000000) == 0xff000000))
672#else
673#define	IN6_IS_ADDR_MC_SOLICITEDNODE(addr)			\
674	(((addr)->_S6_un._S6_u32[0] == 0x000002ff) &&		\
675	((addr)->_S6_un._S6_u32[1] == 0x00000000) &&		\
676	((addr)->_S6_un._S6_u32[2] == 0x01000000) &&		\
677	(((addr)->_S6_un._S6_u32[3] & 0x000000ff) == 0x000000ff))
678#endif
679
680/*
681 * Macros to a) test for 6to4 IPv6 address, and b) to test if two
682 * 6to4 addresses have the same /48 prefix, and, hence, are from the
683 * same 6to4 site.
684 */
685
686#ifdef _BIG_ENDIAN
687#define	IN6_IS_ADDR_6TO4(addr) \
688	(((addr)->_S6_un._S6_u32[0] & 0xffff0000) == 0x20020000)
689#else /* _BIG_ENDIAN */
690#define	IN6_IS_ADDR_6TO4(addr) \
691	(((addr)->_S6_un._S6_u32[0] & 0x0000ffff) == 0x00000220)
692#endif /* _BIG_ENDIAN */
693
694#define	IN6_ARE_6TO4_PREFIX_EQUAL(addr1, addr2) \
695	(((addr1)->_S6_un._S6_u32[0] == (addr2)->_S6_un._S6_u32[0]) && \
696	((addr1)->_S6_un._S6_u8[4] == (addr2)->_S6_un._S6_u8[4]) && \
697	((addr1)->_S6_un._S6_u8[5] == (addr2)->_S6_un._S6_u8[5]))
698
699/*
700 * IN6_IS_ADDR_LINKSCOPE
701 * Identifies an address as being either link-local, link-local multicast or
702 * node-local multicast.  All types of addresses are considered to be unique
703 * within the scope of a given link.
704 */
705#define	IN6_IS_ADDR_LINKSCOPE(addr) \
706	(IN6_IS_ADDR_LINKLOCAL(addr) || IN6_IS_ADDR_MC_LINKLOCAL(addr) || \
707	IN6_IS_ADDR_MC_NODELOCAL(addr))
708
709/*
710 * Useful utility macros for operations with IPv6 addresses
711 * Note: These macros are NOT defined in the RFC2553 or any other
712 * standard specification and are not standard macros that portable
713 * applications should use.
714 */
715
716/*
717 * IN6_V4MAPPED_TO_INADDR
718 * IN6_V4MAPPED_TO_IPADDR
719 *	Assign a IPv4-Mapped IPv6 address to an IPv4 address.
720 *	Note: These macros are NOT defined in RFC2553 or any other standard
721 *	specification and are not macros that portable applications should
722 *	use.
723 *
724 * void IN6_V4MAPPED_TO_INADDR(const in6_addr_t *v6, struct in_addr *v4);
725 * void IN6_V4MAPPED_TO_IPADDR(const in6_addr_t *v6, ipaddr_t v4);
726 *
727 */
728#define	IN6_V4MAPPED_TO_INADDR(v6, v4) \
729	((v4)->s_addr = (v6)->_S6_un._S6_u32[3])
730#define	IN6_V4MAPPED_TO_IPADDR(v6, v4) \
731	((v4) = (v6)->_S6_un._S6_u32[3])
732
733/*
734 * IN6_INADDR_TO_V4MAPPED
735 * IN6_IPADDR_TO_V4MAPPED
736 *	Assign a IPv4 address address to an IPv6 address as a IPv4-mapped
737 *	address.
738 *	Note: These macros are NOT defined in RFC2553 or any other standard
739 *	specification and are not macros that portable applications should
740 *	use.
741 *
742 * void IN6_INADDR_TO_V4MAPPED(const struct in_addr *v4, in6_addr_t *v6);
743 * void IN6_IPADDR_TO_V4MAPPED(const ipaddr_t v4, in6_addr_t *v6);
744 *
745 */
746#ifdef _BIG_ENDIAN
747#define	IN6_INADDR_TO_V4MAPPED(v4, v6) \
748	((v6)->_S6_un._S6_u32[3] = (v4)->s_addr, \
749	(v6)->_S6_un._S6_u32[2] = 0x0000ffff, \
750	(v6)->_S6_un._S6_u32[1] = 0, \
751	(v6)->_S6_un._S6_u32[0] = 0)
752#define	IN6_IPADDR_TO_V4MAPPED(v4, v6) \
753	((v6)->_S6_un._S6_u32[3] = (v4), \
754	(v6)->_S6_un._S6_u32[2] = 0x0000ffff, \
755	(v6)->_S6_un._S6_u32[1] = 0, \
756	(v6)->_S6_un._S6_u32[0] = 0)
757#else /* _BIG_ENDIAN */
758#define	IN6_INADDR_TO_V4MAPPED(v4, v6) \
759	((v6)->_S6_un._S6_u32[3] = (v4)->s_addr, \
760	(v6)->_S6_un._S6_u32[2] = 0xffff0000U, \
761	(v6)->_S6_un._S6_u32[1] = 0, \
762	(v6)->_S6_un._S6_u32[0] = 0)
763#define	IN6_IPADDR_TO_V4MAPPED(v4, v6) \
764	((v6)->_S6_un._S6_u32[3] = (v4), \
765	(v6)->_S6_un._S6_u32[2] = 0xffff0000U, \
766	(v6)->_S6_un._S6_u32[1] = 0, \
767	(v6)->_S6_un._S6_u32[0] = 0)
768#endif /* _BIG_ENDIAN */
769
770/*
771 * IN6_6TO4_TO_V4ADDR
772 *	Extract the embedded IPv4 address from the prefix to a 6to4 IPv6
773 *      address.
774 *	Note: This macro is NOT defined in RFC2553 or any other standard
775 *	specification and is not a macro that portable applications should
776 *	use.
777 *	Note: we don't use the IPADDR form of the macro because we need
778 *	to do a bytewise copy; the V4ADDR in the 6to4 address is not
779 *	32-bit aligned.
780 *
781 * void IN6_6TO4_TO_V4ADDR(const in6_addr_t *v6, struct in_addr *v4);
782 *
783 */
784#define	IN6_6TO4_TO_V4ADDR(v6, v4) \
785	((v4)->_S_un._S_un_b.s_b1 = (v6)->_S6_un._S6_u8[2], \
786	(v4)->_S_un._S_un_b.s_b2 = (v6)->_S6_un._S6_u8[3],  \
787	(v4)->_S_un._S_un_b.s_b3 = (v6)->_S6_un._S6_u8[4],  \
788	(v4)->_S_un._S_un_b.s_b4 = (v6)->_S6_un._S6_u8[5])
789
790/*
791 * IN6_V4ADDR_TO_6TO4
792 *	Given an IPv4 address and an IPv6 address for output, a 6to4 address
793 *	will be created from the IPv4 Address.
794 *	Note:  This method for creating 6to4 addresses is not standardized
795 *	outside of Solaris.  The newly created 6to4 address will be of the form
796 *	2002:<V4ADDR>:<SUBNETID>::<HOSTID>, where SUBNETID will equal 0 and
797 *	HOSTID will equal 1.
798 *
799 * void IN6_V4ADDR_TO_6TO4(const struct in_addr *v4, in6_addr_t *v6)
800 *
801 */
802#ifdef _BIG_ENDIAN
803#define	IN6_V4ADDR_TO_6TO4(v4, v6) \
804	((v6)->_S6_un._S6_u8[0] = 0x20, \
805	(v6)->_S6_un._S6_u8[1] = 0x02, \
806	(v6)->_S6_un._S6_u8[2] = (v4)->_S_un._S_un_b.s_b1, \
807	(v6)->_S6_un._S6_u8[3] = (v4)->_S_un._S_un_b.s_b2, \
808	(v6)->_S6_un._S6_u8[4] = (v4)->_S_un._S_un_b.s_b3, \
809	(v6)->_S6_un._S6_u8[5] = (v4)->_S_un._S_un_b.s_b4, \
810	(v6)->_S6_un._S6_u8[6] = 0, \
811	(v6)->_S6_un._S6_u8[7] = 0, \
812	(v6)->_S6_un._S6_u32[2] = 0, \
813	(v6)->_S6_un._S6_u32[3] = 0x00000001U)
814#else
815#define	IN6_V4ADDR_TO_6TO4(v4, v6) \
816	((v6)->_S6_un._S6_u8[0] = 0x20, \
817	(v6)->_S6_un._S6_u8[1] = 0x02, \
818	(v6)->_S6_un._S6_u8[2] = (v4)->_S_un._S_un_b.s_b1, \
819	(v6)->_S6_un._S6_u8[3] = (v4)->_S_un._S_un_b.s_b2, \
820	(v6)->_S6_un._S6_u8[4] = (v4)->_S_un._S_un_b.s_b3, \
821	(v6)->_S6_un._S6_u8[5] = (v4)->_S_un._S_un_b.s_b4, \
822	(v6)->_S6_un._S6_u8[6] = 0, \
823	(v6)->_S6_un._S6_u8[7] = 0, \
824	(v6)->_S6_un._S6_u32[2] = 0, \
825	(v6)->_S6_un._S6_u32[3] = 0x01000000U)
826#endif /* _BIG_ENDIAN */
827
828/*
829 * IN6_ARE_ADDR_EQUAL (defined in RFC2292)
830 *	 Compares if IPv6 addresses are equal.
831 * Note: Compares in order of high likelyhood of a miss so we minimize
832 * compares. (Current heuristic order, compare in reverse order of
833 * uint32_t units)
834 *
835 * bool  IN6_ARE_ADDR_EQUAL(const struct in6_addr *,
836 *			    const struct in6_addr *);
837 */
838#define	IN6_ARE_ADDR_EQUAL(addr1, addr2) \
839	(((addr1)->_S6_un._S6_u32[3] == (addr2)->_S6_un._S6_u32[3]) && \
840	((addr1)->_S6_un._S6_u32[2] == (addr2)->_S6_un._S6_u32[2]) && \
841	((addr1)->_S6_un._S6_u32[1] == (addr2)->_S6_un._S6_u32[1]) && \
842	((addr1)->_S6_un._S6_u32[0] == (addr2)->_S6_un._S6_u32[0]))
843
844/*
845 * IN6_ARE_PREFIXEDADDR_EQUAL (not defined in RFCs)
846 *	Compares if prefixed parts of IPv6 addresses are equal.
847 *
848 * uint32_t IN6_MASK_FROM_PREFIX(int, int);
849 * bool     IN6_ARE_PREFIXEDADDR_EQUAL(const struct in6_addr *,
850 *				       const struct in6_addr *,
851 *				       int);
852 */
853#define	IN6_MASK_FROM_PREFIX(qoctet, prefix) \
854	((((qoctet) + 1) * 32 < (prefix)) ? 0xFFFFFFFFu : \
855	((((qoctet) * 32) >= (prefix)) ? 0x00000000u : \
856	0xFFFFFFFFu << (((qoctet) + 1) * 32 - (prefix))))
857
858#define	IN6_ARE_PREFIXEDADDR_EQUAL(addr1, addr2, prefix) \
859	(((ntohl((addr1)->_S6_un._S6_u32[0]) & \
860	IN6_MASK_FROM_PREFIX(0, prefix)) == \
861	(ntohl((addr2)->_S6_un._S6_u32[0]) & \
862	IN6_MASK_FROM_PREFIX(0, prefix))) && \
863	((ntohl((addr1)->_S6_un._S6_u32[1]) & \
864	IN6_MASK_FROM_PREFIX(1, prefix)) == \
865	(ntohl((addr2)->_S6_un._S6_u32[1]) & \
866	IN6_MASK_FROM_PREFIX(1, prefix))) && \
867	((ntohl((addr1)->_S6_un._S6_u32[2]) & \
868	IN6_MASK_FROM_PREFIX(2, prefix)) == \
869	(ntohl((addr2)->_S6_un._S6_u32[2]) & \
870	IN6_MASK_FROM_PREFIX(2, prefix))) && \
871	((ntohl((addr1)->_S6_un._S6_u32[3]) & \
872	IN6_MASK_FROM_PREFIX(3, prefix)) == \
873	(ntohl((addr2)->_S6_un._S6_u32[3]) & \
874	IN6_MASK_FROM_PREFIX(3, prefix))))
875
876#endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */
877
878
879/*
880 * Options for use with [gs]etsockopt at the IP level.
881 *
882 * Note: Some of the IP_ namespace has conflict with and
883 * and is exposed through <xti.h>. (It also requires exposing
884 * options not implemented). The options with potential
885 * for conflicts use #ifndef guards.
886 */
887#ifndef IP_OPTIONS
888#define	IP_OPTIONS	1	/* set/get IP per-packet options   */
889#endif
890
891#define	IP_HDRINCL	2	/* int; header is included with data (raw) */
892
893#ifndef IP_TOS
894#define	IP_TOS		3	/* int; IP type of service and precedence */
895#endif
896
897#ifndef IP_TTL
898#define	IP_TTL		4	/* int; IP time to live */
899#endif
900
901#define	IP_RECVOPTS	0x5	/* int; receive all IP options w/datagram */
902#define	IP_RECVRETOPTS	0x6	/* int; receive IP options for response */
903#define	IP_RECVDSTADDR	0x7	/* int; receive IP dst addr w/datagram */
904#define	IP_RETOPTS	0x8	/* ip_opts; set/get IP per-packet options */
905#define	IP_RECVIF	0x9	/* int; receive the inbound interface index */
906#define	IP_RECVSLLA	0xa	/* sockaddr_dl; get source link layer address */
907#define	IP_RECVTTL	0xb	/* uint8_t; get TTL for inbound packet */
908
909#define	IP_MULTICAST_IF		0x10	/* set/get IP multicast interface  */
910#define	IP_MULTICAST_TTL	0x11	/* set/get IP multicast timetolive */
911#define	IP_MULTICAST_LOOP	0x12	/* set/get IP multicast loopback   */
912#define	IP_ADD_MEMBERSHIP	0x13	/* add	an IP group membership	   */
913#define	IP_DROP_MEMBERSHIP	0x14	/* drop an IP group membership	   */
914#define	IP_BLOCK_SOURCE		0x15	/* block   mcast pkts from source  */
915#define	IP_UNBLOCK_SOURCE	0x16	/* unblock mcast pkts from source  */
916#define	IP_ADD_SOURCE_MEMBERSHIP  0x17	/* add  mcast group/source pair	   */
917#define	IP_DROP_SOURCE_MEMBERSHIP 0x18	/* drop mcast group/source pair	   */
918#define	IP_NEXTHOP		0x19	/* send directly to next hop	   */
919/*
920 * IP_PKTINFO and IP_RECVPKTINFO have same value. Size of argument passed in
921 * is used to differentiate b/w the two.
922 */
923#define	IP_PKTINFO		0x1a	/* specify src address and/or index */
924#define	IP_RECVPKTINFO		0x1a	/* recv dest/matched addr and index */
925#define	IP_DONTFRAG		0x1b	/* don't fragment packets */
926
927#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
928/*
929 * Different preferences that can be requested from IPSEC protocols.
930 */
931#define	IP_SEC_OPT		0x22	/* Used to set IPSEC options */
932#define	IPSEC_PREF_NEVER	0x01
933#define	IPSEC_PREF_REQUIRED	0x02
934#define	IPSEC_PREF_UNIQUE	0x04
935/*
936 * This can be used with the setsockopt() call to set per socket security
937 * options. When the application uses per-socket API, we will reflect
938 * the request on both outbound and inbound packets.
939 */
940
941typedef struct ipsec_req {
942	uint_t 		ipsr_ah_req;		/* AH request */
943	uint_t 		ipsr_esp_req;		/* ESP request */
944	uint_t		ipsr_self_encap_req;	/* Self-Encap request */
945	uint8_t		ipsr_auth_alg;		/* Auth algs for AH */
946	uint8_t		ipsr_esp_alg;		/* Encr algs for ESP */
947	uint8_t		ipsr_esp_auth_alg;	/* Auth algs for ESP */
948} ipsec_req_t;
949
950/*
951 * MCAST_* options are protocol-independent.  The actual definitions
952 * are with the v6 options below; this comment is here to note the
953 * namespace usage.
954 *
955 * #define	MCAST_JOIN_GROUP	0x29
956 * #define	MCAST_LEAVE_GROUP	0x2a
957 * #define	MCAST_BLOCK_SOURCE	0x2b
958 * #define	MCAST_UNBLOCK_SOURCE	0x2c
959 * #define	MCAST_JOIN_SOURCE_GROUP	0x2d
960 * #define	MCAST_LEAVE_SOURCE_GROUP 0x2e
961 */
962#endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
963
964/*
965 * SunOS private (potentially not portable) IP_ option names
966 */
967#define	IP_BOUND_IF		0x41	/* bind socket to an ifindex	   */
968#define	IP_UNSPEC_SRC		0x42	/* use unspecified source address  */
969#define	IP_BROADCAST_TTL	0x43	/* use specific TTL for broadcast  */
970/* can be reused		0x44 */
971#define	IP_DHCPINIT_IF		0x45	/* accept all unicast DHCP traffic */
972
973/*
974 * Option values and names (when !_XPG5) shared with <xti_inet.h>
975 */
976#ifndef IP_REUSEADDR
977#define	IP_REUSEADDR		0x104
978#endif
979
980#ifndef IP_DONTROUTE
981#define	IP_DONTROUTE		0x105
982#endif
983
984#ifndef IP_BROADCAST
985#define	IP_BROADCAST		0x106
986#endif
987
988/*
989 * The following option values are reserved by <xti_inet.h>
990 *
991 * T_IP_OPTIONS	0x107	 -  IP per-packet options
992 * T_IP_TOS	0x108	 -  IP per packet type of service
993 */
994
995/*
996 * Default value constants for multicast attributes controlled by
997 * IP*_MULTICAST_LOOP and IP*_MULTICAST_{TTL,HOPS} options.
998 */
999#define	IP_DEFAULT_MULTICAST_TTL  1	/* normally limit m'casts to 1 hop */
1000#define	IP_DEFAULT_MULTICAST_LOOP 1	/* normally hear sends if a member */
1001
1002#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
1003/*
1004 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
1005 */
1006struct ip_mreq {
1007	struct in_addr	imr_multiaddr;	/* IP multicast address of group */
1008	struct in_addr	imr_interface;	/* local IP address of interface */
1009};
1010
1011/*
1012 * Argument structure for IP_BLOCK_SOURCE, IP_UNBLOCK_SOURCE,
1013 * IP_ADD_SOURCE_MEMBERSHIP, and IP_DROP_SOURCE_MEMBERSHIP.
1014 */
1015struct ip_mreq_source {
1016	struct in_addr	imr_multiaddr;	/* IP address of group */
1017	struct in_addr	imr_sourceaddr;	/* IP address of source */
1018	struct in_addr	imr_interface;	/* IP address of interface */
1019};
1020
1021/*
1022 * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP on
1023 * IPv6 addresses.
1024 */
1025struct ipv6_mreq {
1026	struct in6_addr	ipv6mr_multiaddr;	/* IPv6 multicast addr */
1027	unsigned int	ipv6mr_interface;	/* interface index */
1028};
1029
1030/*
1031 * Use #pragma pack() construct to force 32-bit alignment on amd64.
1032 * This is needed to keep the structure size and offsets consistent
1033 * between a 32-bit app and the 64-bit amd64 kernel in structures
1034 * where 64-bit alignment would create gaps (in this case, structures
1035 * which have a uint32_t followed by a struct sockaddr_storage).
1036 */
1037#if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
1038#pragma pack(4)
1039#endif
1040
1041/*
1042 * Argument structure for MCAST_JOIN_GROUP and MCAST_LEAVE_GROUP.
1043 */
1044struct group_req {
1045	uint32_t		gr_interface;	/* interface index */
1046	struct sockaddr_storage	gr_group;	/* group address */
1047};
1048
1049/*
1050 * Argument structure for MCAST_BLOCK_SOURCE, MCAST_UNBLOCK_SOURCE,
1051 * MCAST_JOIN_SOURCE_GROUP, MCAST_LEAVE_SOURCE_GROUP.
1052 */
1053struct group_source_req {
1054	uint32_t		gsr_interface;	/* interface index */
1055	struct sockaddr_storage	gsr_group;	/* group address */
1056	struct sockaddr_storage	gsr_source;	/* source address */
1057};
1058
1059/*
1060 * Argument for SIOC[GS]MSFILTER ioctls
1061 */
1062struct group_filter {
1063	uint32_t		gf_interface;	/* interface index */
1064	struct sockaddr_storage	gf_group;	/* multicast address */
1065	uint32_t		gf_fmode;	/* filter mode */
1066	uint32_t		gf_numsrc;	/* number of sources */
1067	struct sockaddr_storage	gf_slist[1];	/* source address */
1068};
1069
1070#if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
1071#pragma pack()
1072#endif
1073
1074#define	GROUP_FILTER_SIZE(numsrc) \
1075	(sizeof (struct group_filter) - sizeof (struct sockaddr_storage) \
1076	+ (numsrc) * sizeof (struct sockaddr_storage))
1077
1078/*
1079 * Argument for SIOC[GS]IPMSFILTER ioctls (IPv4-specific)
1080 */
1081struct ip_msfilter {
1082	struct in_addr	imsf_multiaddr;	/* IP multicast address of group */
1083	struct in_addr	imsf_interface;	/* local IP address of interface */
1084	uint32_t	imsf_fmode;	/* filter mode */
1085	uint32_t	imsf_numsrc;	/* number of sources in src_list */
1086	struct in_addr	imsf_slist[1];	/* start of source list */
1087};
1088
1089#define	IP_MSFILTER_SIZE(numsrc) \
1090	(sizeof (struct ip_msfilter) - sizeof (struct in_addr) \
1091	+ (numsrc) * sizeof (struct in_addr))
1092
1093/*
1094 * Multicast source filter manipulation functions in libsocket;
1095 * defined in RFC 3678.
1096 */
1097int setsourcefilter(int, uint32_t, struct sockaddr *, socklen_t, uint32_t,
1098			uint_t, struct sockaddr_storage *);
1099
1100int getsourcefilter(int, uint32_t, struct sockaddr *, socklen_t, uint32_t *,
1101			uint_t *, struct sockaddr_storage *);
1102
1103int setipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t,
1104			uint32_t, struct in_addr *);
1105
1106int getipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t *,
1107			uint32_t *, struct in_addr *);
1108
1109/*
1110 * Definitions needed for [gs]etsourcefilter(), [gs]etipv4sourcefilter()
1111 */
1112#define	MCAST_INCLUDE	1
1113#define	MCAST_EXCLUDE	2
1114
1115/*
1116 * Argument struct for IP_PKTINFO option
1117 */
1118typedef struct in_pktinfo {
1119	unsigned int		ipi_ifindex;	/* send/recv interface index */
1120	struct in_addr		ipi_spec_dst;	/* matched source address */
1121	struct in_addr		ipi_addr;	/* src/dst address in IP hdr */
1122} in_pktinfo_t;
1123
1124/*
1125 * Argument struct for IPV6_PKTINFO option
1126 */
1127struct in6_pktinfo {
1128	struct in6_addr		ipi6_addr;	/* src/dst IPv6 address */
1129	unsigned int		ipi6_ifindex;	/* send/recv interface index */
1130};
1131
1132/*
1133 * Argument struct for IPV6_MTUINFO option
1134 */
1135struct ip6_mtuinfo {
1136	struct sockaddr_in6	ip6m_addr; /* dst address including zone ID */
1137	uint32_t		ip6m_mtu;  /* path MTU in host byte order */
1138};
1139
1140/*
1141 * IPv6 routing header types
1142 */
1143#define	IPV6_RTHDR_TYPE_0	0
1144
1145extern socklen_t inet6_rth_space(int type, int segments);
1146extern void *inet6_rth_init(void *bp, socklen_t bp_len, int type, int segments);
1147extern int inet6_rth_add(void *bp, const struct in6_addr *addr);
1148extern int inet6_rth_reverse(const void *in, void *out);
1149extern int inet6_rth_segments(const void *bp);
1150extern struct in6_addr *inet6_rth_getaddr(const void *bp, int index);
1151
1152extern int inet6_opt_init(void *extbuf, socklen_t extlen);
1153extern int inet6_opt_append(void *extbuf, socklen_t extlen, int offset,
1154	uint8_t type, socklen_t len, uint_t align, void **databufp);
1155extern int inet6_opt_finish(void *extbuf, socklen_t extlen, int offset);
1156extern int inet6_opt_set_val(void *databuf, int offset, void *val,
1157	socklen_t vallen);
1158extern int inet6_opt_next(void *extbuf, socklen_t extlen, int offset,
1159	uint8_t *typep, socklen_t *lenp, void **databufp);
1160extern int inet6_opt_find(void *extbufp, socklen_t extlen, int offset,
1161	uint8_t type, socklen_t *lenp, void **databufp);
1162extern int inet6_opt_get_val(void *databuf, int offset, void *val,
1163	socklen_t vallen);
1164#endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
1165
1166/*
1167 * Argument structure for IP_ADD_PROXY_ADDR.
1168 * Note that this is an unstable, experimental interface. It may change
1169 * later. Don't use it unless you know what it is.
1170 */
1171typedef struct {
1172	struct in_addr	in_prefix_addr;
1173	unsigned int	in_prefix_len;
1174} in_prefix_t;
1175
1176
1177#if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__)
1178/*
1179 * IPv6 options
1180 */
1181#define	IPV6_UNICAST_HOPS	0x5	/* hop limit value for unicast */
1182					/* packets. */
1183					/* argument type: uint_t */
1184#define	IPV6_MULTICAST_IF	0x6	/* outgoing interface for */
1185					/* multicast packets. */
1186					/* argument type: struct in6_addr */
1187#define	IPV6_MULTICAST_HOPS	0x7	/* hop limit value to use for */
1188					/* multicast packets. */
1189					/* argument type: uint_t */
1190#define	IPV6_MULTICAST_LOOP	0x8	/* enable/disable delivery of */
1191					/* multicast packets on same socket. */
1192					/* argument type: uint_t */
1193#define	IPV6_JOIN_GROUP		0x9	/* join an IPv6 multicast group. */
1194					/* argument type: struct ipv6_mreq */
1195#define	IPV6_LEAVE_GROUP	0xa	/* leave an IPv6 multicast group */
1196					/* argument type: struct ipv6_mreq */
1197
1198/*
1199 * Other XPG6 constants.
1200 */
1201#define	INET_ADDRSTRLEN		16	/* max len IPv4 addr in ascii dotted */
1202					/* decimal notation. */
1203#define	INET6_ADDRSTRLEN	46	/* max len of IPv6 addr in ascii */
1204					/* standard colon-hex notation. */
1205
1206#endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */
1207
1208#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
1209
1210/*
1211 * IPV6_ADD_MEMBERSHIP and IPV6_DROP_MEMBERSHIP are being kept
1212 * for backward compatibility. They have the same meaning as IPV6_JOIN_GROUP
1213 * and IPV6_LEAVE_GROUP respectively.
1214 */
1215#define	IPV6_ADD_MEMBERSHIP	0x9	/* join an IPv6 multicast group. */
1216					/* argument type: struct ipv6_mreq */
1217#define	IPV6_DROP_MEMBERSHIP	0xa	/* leave an IPv6 multicast group */
1218					/* argument type: struct ipv6_mreq */
1219
1220#define	IPV6_PKTINFO		0xb	/* addr plus interface index */
1221					/* arg type: "struct in6_pktingo" - */
1222#define	IPV6_HOPLIMIT		0xc	/* hoplimit for datagram */
1223#define	IPV6_NEXTHOP		0xd	/* next hop address  */
1224#define	IPV6_HOPOPTS		0xe	/* hop by hop options */
1225#define	IPV6_DSTOPTS		0xf	/* destination options - after */
1226					/* the routing header */
1227#define	IPV6_RTHDR		0x10	/* routing header  */
1228#define	IPV6_RTHDRDSTOPTS	0x11	/* destination options - before */
1229					/* the routing header */
1230#define	IPV6_RECVPKTINFO	0x12	/* enable/disable IPV6_PKTINFO */
1231#define	IPV6_RECVHOPLIMIT	0x13	/* enable/disable IPV6_HOPLIMIT */
1232#define	IPV6_RECVHOPOPTS	0x14	/* enable/disable IPV6_HOPOPTS */
1233
1234/*
1235 * This options exists for backwards compatability and should no longer be
1236 * used.  Use IPV6_RECVDSTOPTS instead.
1237 */
1238#define	_OLD_IPV6_RECVDSTOPTS	0x15
1239
1240#define	IPV6_RECVRTHDR		0x16	/* enable/disable IPV6_RTHDR */
1241
1242/*
1243 * enable/disable IPV6_RTHDRDSTOPTS.  Now obsolete.  IPV6_RECVDSTOPTS enables
1244 * the receipt of both headers.
1245 */
1246#define	IPV6_RECVRTHDRDSTOPTS	0x17
1247
1248#define	IPV6_CHECKSUM		0x18	/* Control checksum on raw sockets */
1249#define	IPV6_RECVTCLASS		0x19	/* enable/disable IPV6_CLASS */
1250#define	IPV6_USE_MIN_MTU	0x20	/* send packets with minimum MTU */
1251#define	IPV6_DONTFRAG		0x21	/* don't fragment packets */
1252#define	IPV6_SEC_OPT		0x22	/* Used to set IPSEC options */
1253#define	IPV6_SRC_PREFERENCES	0x23	/* Control socket's src addr select */
1254#define	IPV6_RECVPATHMTU	0x24	/* receive PMTU info */
1255#define	IPV6_PATHMTU		0x25	/* get the PMTU */
1256#define	IPV6_TCLASS		0x26	/* traffic class */
1257#define	IPV6_V6ONLY		0x27	/* v6 only socket option */
1258
1259/*
1260 * enable/disable receipt of both both IPV6_DSTOPTS headers.
1261 */
1262#define	IPV6_RECVDSTOPTS	0x28
1263
1264/*
1265 * protocol-independent multicast membership options.
1266 */
1267#define	MCAST_JOIN_GROUP	0x29	/* join group for all sources */
1268#define	MCAST_LEAVE_GROUP	0x2a	/* leave group */
1269#define	MCAST_BLOCK_SOURCE	0x2b	/* block specified source */
1270#define	MCAST_UNBLOCK_SOURCE	0x2c	/* unblock specified source */
1271#define	MCAST_JOIN_SOURCE_GROUP	0x2d	/* join group for specified source */
1272#define	MCAST_LEAVE_SOURCE_GROUP 0x2e	/* leave source/group pair */
1273
1274/* 32Bit field for IPV6_SRC_PREFERENCES */
1275#define	IPV6_PREFER_SRC_HOME		0x00000001
1276#define	IPV6_PREFER_SRC_COA		0x00000002
1277#define	IPV6_PREFER_SRC_PUBLIC		0x00000004
1278#define	IPV6_PREFER_SRC_TMP		0x00000008
1279#define	IPV6_PREFER_SRC_NONCGA		0x00000010
1280#define	IPV6_PREFER_SRC_CGA		0x00000020
1281
1282#define	IPV6_PREFER_SRC_MIPMASK	(IPV6_PREFER_SRC_HOME | IPV6_PREFER_SRC_COA)
1283#define	IPV6_PREFER_SRC_MIPDEFAULT	IPV6_PREFER_SRC_HOME
1284#define	IPV6_PREFER_SRC_TMPMASK	(IPV6_PREFER_SRC_PUBLIC | IPV6_PREFER_SRC_TMP)
1285#define	IPV6_PREFER_SRC_TMPDEFAULT	IPV6_PREFER_SRC_PUBLIC
1286#define	IPV6_PREFER_SRC_CGAMASK	(IPV6_PREFER_SRC_NONCGA | IPV6_PREFER_SRC_CGA)
1287#define	IPV6_PREFER_SRC_CGADEFAULT	IPV6_PREFER_SRC_NONCGA
1288
1289#define	IPV6_PREFER_SRC_MASK (IPV6_PREFER_SRC_MIPMASK |\
1290	IPV6_PREFER_SRC_TMPMASK | IPV6_PREFER_SRC_CGAMASK)
1291
1292#define	IPV6_PREFER_SRC_DEFAULT	(IPV6_PREFER_SRC_MIPDEFAULT |\
1293	IPV6_PREFER_SRC_TMPDEFAULT | IPV6_PREFER_SRC_CGADEFAULT)
1294
1295/*
1296 * SunOS private (potentially not portable) IPV6_ option names
1297 */
1298#define	IPV6_BOUND_IF		0x41	/* bind to an ifindex */
1299#define	IPV6_UNSPEC_SRC		0x42	/* source of packets set to */
1300					/* unspecified (all zeros) */
1301
1302/*
1303 * Miscellaneous IPv6 constants.
1304 */
1305#define	IPV6_PAD1_OPT		0	/* pad byte in IPv6 extension hdrs */
1306
1307#endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
1308
1309/*
1310 * Extern declarations for pre-defined global const variables
1311 */
1312#if !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__)
1313#ifndef _KERNEL
1314#ifdef __STDC__
1315extern const struct in6_addr in6addr_any;
1316extern const struct in6_addr in6addr_loopback;
1317#else
1318extern struct in6_addr in6addr_any;
1319extern struct in6_addr in6addr_loopback;
1320#endif
1321#endif
1322#endif /* !defined(_XPG4_2) || defined(_XPG6) || defined(__EXTENSIONS__) */
1323
1324#ifdef	__cplusplus
1325}
1326#endif
1327
1328#endif	/* _NETINET_IN_H */
1329