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/pwn/include/freebsd/sys/socket.h

https://github.com/bossjones/pwntools
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  1/*-
  2 * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994
  3 *	The Regents of the University of California.  All rights reserved.
  4 *
  5 * Redistribution and use in source and binary forms, with or without
  6 * modification, are permitted provided that the following conditions
  7 * are met:
  8 * 1. Redistributions of source code must retain the above copyright
  9 *    notice, this list of conditions and the following disclaimer.
 10 * 2. Redistributions in binary form must reproduce the above copyright
 11 *    notice, this list of conditions and the following disclaimer in the
 12 *    documentation and/or other materials provided with the distribution.
 13 * 4. Neither the name of the University nor the names of its contributors
 14 *    may be used to endorse or promote products derived from this software
 15 *    without specific prior written permission.
 16 *
 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 27 * SUCH DAMAGE.
 28 *
 29 *	@(#)socket.h	8.4 (Berkeley) 2/21/94
 30 * $FreeBSD$
 31 */
 32
 33#ifndef _SYS_SOCKET_H_
 34#define	_SYS_SOCKET_H_
 35
 36#include <sys/cdefs.h>
 37#include <sys/_types.h>
 38#include <sys/_iovec.h>
 39#include <machine/_align.h>
 40
 41/*
 42 * Definitions related to sockets: types, address families, options.
 43 */
 44
 45/*
 46 * Data types.
 47 */
 48#if __BSD_VISIBLE
 49#ifndef _GID_T_DECLARED
 50typedef	__gid_t		gid_t;
 51#define	_GID_T_DECLARED
 52#endif
 53
 54#ifndef _OFF_T_DECLARED
 55typedef	__off_t		off_t;
 56#define	_OFF_T_DECLARED
 57#endif
 58
 59#ifndef _PID_T_DECLARED
 60typedef	__pid_t		pid_t;
 61#define	_PID_T_DECLARED
 62#endif
 63#endif
 64
 65#ifndef _SA_FAMILY_T_DECLARED
 66typedef	__sa_family_t	sa_family_t;
 67#define	_SA_FAMILY_T_DECLARED
 68#endif
 69
 70#ifndef _SOCKLEN_T_DECLARED
 71typedef	__socklen_t	socklen_t;
 72#define	_SOCKLEN_T_DECLARED
 73#endif
 74
 75#ifndef _SSIZE_T_DECLARED
 76typedef	__ssize_t	ssize_t;
 77#define	_SSIZE_T_DECLARED
 78#endif
 79
 80#if __BSD_VISIBLE
 81#ifndef _UID_T_DECLARED
 82typedef	__uid_t		uid_t;
 83#define	_UID_T_DECLARED
 84#endif
 85#endif
 86
 87/*
 88 * Types
 89 */
 90#define	SOCK_STREAM	1		/* stream socket */
 91#define	SOCK_DGRAM	2		/* datagram socket */
 92#define	SOCK_RAW	3		/* raw-protocol interface */
 93#if __BSD_VISIBLE
 94#define	SOCK_RDM	4		/* reliably-delivered message */
 95#endif
 96#define	SOCK_SEQPACKET	5		/* sequenced packet stream */
 97
 98/*
 99 * Option flags per-socket.
100 */
101#define	SO_DEBUG	0x0001		/* turn on debugging info recording */
102#define	SO_ACCEPTCONN	0x0002		/* socket has had listen() */
103#define	SO_REUSEADDR	0x0004		/* allow local address reuse */
104#define	SO_KEEPALIVE	0x0008		/* keep connections alive */
105#define	SO_DONTROUTE	0x0010		/* just use interface addresses */
106#define	SO_BROADCAST	0x0020		/* permit sending of broadcast msgs */
107#if __BSD_VISIBLE
108#define	SO_USELOOPBACK	0x0040		/* bypass hardware when possible */
109#endif
110#define	SO_LINGER	0x0080		/* linger on close if data present */
111#define	SO_OOBINLINE	0x0100		/* leave received OOB data in line */
112#if __BSD_VISIBLE
113#define	SO_REUSEPORT	0x0200		/* allow local address & port reuse */
114#define	SO_TIMESTAMP	0x0400		/* timestamp received dgram traffic */
115#define	SO_NOSIGPIPE	0x0800		/* no SIGPIPE from EPIPE */
116#define	SO_ACCEPTFILTER	0x1000		/* there is an accept filter */
117#define	SO_BINTIME	0x2000		/* timestamp received dgram traffic */
118#endif
119#define	SO_NO_OFFLOAD	0x4000		/* socket cannot be offloaded */
120#define	SO_NO_DDP	0x8000		/* disable direct data placement */
121
122/*
123 * Additional options, not kept in so_options.
124 */
125#define	SO_SNDBUF	0x1001		/* send buffer size */
126#define	SO_RCVBUF	0x1002		/* receive buffer size */
127#define	SO_SNDLOWAT	0x1003		/* send low-water mark */
128#define	SO_RCVLOWAT	0x1004		/* receive low-water mark */
129#define	SO_SNDTIMEO	0x1005		/* send timeout */
130#define	SO_RCVTIMEO	0x1006		/* receive timeout */
131#define	SO_ERROR	0x1007		/* get error status and clear */
132#define	SO_TYPE		0x1008		/* get socket type */
133#if __BSD_VISIBLE
134#define	SO_LABEL	0x1009		/* socket's MAC label */
135#define	SO_PEERLABEL	0x1010		/* socket's peer's MAC label */
136#define	SO_LISTENQLIMIT	0x1011		/* socket's backlog limit */
137#define	SO_LISTENQLEN	0x1012		/* socket's complete queue length */
138#define	SO_LISTENINCQLEN	0x1013	/* socket's incomplete queue length */
139#define	SO_SETFIB	0x1014		/* use this FIB to route */
140#define	SO_USER_COOKIE	0x1015		/* user cookie (dummynet etc.) */
141#define	SO_PROTOCOL	0x1016		/* get socket protocol (Linux name) */
142#define	SO_PROTOTYPE	SO_PROTOCOL	/* alias for SO_PROTOCOL (SunOS name) */
143#endif
144
145/*
146 * Space reserved for new socket options added by third-party vendors.
147 * This range applies to all socket option levels.  New socket options
148 * in FreeBSD should always use an option value less than SO_VENDOR.
149 */
150#if __BSD_VISIBLE
151#define	SO_VENDOR	0x80000000
152#endif
153
154/*
155 * Structure used for manipulating linger option.
156 */
157struct linger {
158	int	l_onoff;		/* option on/off */
159	int	l_linger;		/* linger time */
160};
161
162#if __BSD_VISIBLE
163struct accept_filter_arg {
164	char	af_name[16];
165	char	af_arg[256-16];
166};
167#endif
168
169/*
170 * Level number for (get/set)sockopt() to apply to socket itself.
171 */
172#define	SOL_SOCKET	0xffff		/* options for socket level */
173
174/*
175 * Address families.
176 */
177#define	AF_UNSPEC	0		/* unspecified */
178#if __BSD_VISIBLE
179#define	AF_LOCAL	AF_UNIX		/* local to host (pipes, portals) */
180#endif
181#define	AF_UNIX		1		/* standardized name for AF_LOCAL */
182#define	AF_INET		2		/* internetwork: UDP, TCP, etc. */
183#if __BSD_VISIBLE
184#define	AF_IMPLINK	3		/* arpanet imp addresses */
185#define	AF_PUP		4		/* pup protocols: e.g. BSP */
186#define	AF_CHAOS	5		/* mit CHAOS protocols */
187#define	AF_NETBIOS	6		/* SMB protocols */
188#define	AF_ISO		7		/* ISO protocols */
189#define	AF_OSI		AF_ISO
190#define	AF_ECMA		8		/* European computer manufacturers */
191#define	AF_DATAKIT	9		/* datakit protocols */
192#define	AF_CCITT	10		/* CCITT protocols, X.25 etc */
193#define	AF_SNA		11		/* IBM SNA */
194#define AF_DECnet	12		/* DECnet */
195#define AF_DLI		13		/* DEC Direct data link interface */
196#define AF_LAT		14		/* LAT */
197#define	AF_HYLINK	15		/* NSC Hyperchannel */
198#define	AF_APPLETALK	16		/* Apple Talk */
199#define	AF_ROUTE	17		/* Internal Routing Protocol */
200#define	AF_LINK		18		/* Link layer interface */
201#define	pseudo_AF_XTP	19		/* eXpress Transfer Protocol (no AF) */
202#define	AF_COIP		20		/* connection-oriented IP, aka ST II */
203#define	AF_CNT		21		/* Computer Network Technology */
204#define pseudo_AF_RTIP	22		/* Help Identify RTIP packets */
205#define	AF_IPX		23		/* Novell Internet Protocol */
206#define	AF_SIP		24		/* Simple Internet Protocol */
207#define	pseudo_AF_PIP	25		/* Help Identify PIP packets */
208#define	AF_ISDN		26		/* Integrated Services Digital Network*/
209#define	AF_E164		AF_ISDN		/* CCITT E.164 recommendation */
210#define	pseudo_AF_KEY	27		/* Internal key-management function */
211#endif
212#define	AF_INET6	28		/* IPv6 */
213#if __BSD_VISIBLE
214#define	AF_NATM		29		/* native ATM access */
215#define	AF_ATM		30		/* ATM */
216#define pseudo_AF_HDRCMPLT 31		/* Used by BPF to not rewrite headers
217					 * in interface output routine
218					 */
219#define	AF_NETGRAPH	32		/* Netgraph sockets */
220#define	AF_SLOW		33		/* 802.3ad slow protocol */
221#define	AF_SCLUSTER	34		/* Sitara cluster protocol */
222#define	AF_ARP		35
223#define	AF_BLUETOOTH	36		/* Bluetooth sockets */
224#define	AF_IEEE80211	37		/* IEEE 802.11 protocol */
225#define	AF_MAX		38
226/*
227 * When allocating a new AF_ constant, please only allocate
228 * even numbered constants for FreeBSD until 134 as odd numbered AF_
229 * constants 39-133 are now reserved for vendors.
230 */
231#define AF_VENDOR00 39
232#define AF_VENDOR01 41
233#define AF_VENDOR02 43
234#define AF_VENDOR03 45
235#define AF_VENDOR04 47
236#define AF_VENDOR05 49
237#define AF_VENDOR06 51
238#define AF_VENDOR07 53
239#define AF_VENDOR08 55
240#define AF_VENDOR09 57
241#define AF_VENDOR10 59
242#define AF_VENDOR11 61
243#define AF_VENDOR12 63
244#define AF_VENDOR13 65
245#define AF_VENDOR14 67
246#define AF_VENDOR15 69
247#define AF_VENDOR16 71
248#define AF_VENDOR17 73
249#define AF_VENDOR18 75
250#define AF_VENDOR19 77
251#define AF_VENDOR20 79
252#define AF_VENDOR21 81
253#define AF_VENDOR22 83
254#define AF_VENDOR23 85
255#define AF_VENDOR24 87
256#define AF_VENDOR25 89
257#define AF_VENDOR26 91
258#define AF_VENDOR27 93
259#define AF_VENDOR28 95
260#define AF_VENDOR29 97
261#define AF_VENDOR30 99
262#define AF_VENDOR31 101
263#define AF_VENDOR32 103
264#define AF_VENDOR33 105
265#define AF_VENDOR34 107
266#define AF_VENDOR35 109
267#define AF_VENDOR36 111
268#define AF_VENDOR37 113
269#define AF_VENDOR38 115
270#define AF_VENDOR39 117
271#define AF_VENDOR40 119
272#define AF_VENDOR41 121
273#define AF_VENDOR42 123
274#define AF_VENDOR43 125
275#define AF_VENDOR44 127
276#define AF_VENDOR45 129
277#define AF_VENDOR46 131
278#define AF_VENDOR47 133
279#endif
280
281/*
282 * Structure used by kernel to store most
283 * addresses.
284 */
285struct sockaddr {
286	unsigned char	sa_len;		/* total length */
287	sa_family_t	sa_family;	/* address family */
288	char		sa_data[14];	/* actually longer; address value */
289};
290#if __BSD_VISIBLE
291#define	SOCK_MAXADDRLEN	255		/* longest possible addresses */
292
293/*
294 * Structure used by kernel to pass protocol
295 * information in raw sockets.
296 */
297struct sockproto {
298	unsigned short	sp_family;		/* address family */
299	unsigned short	sp_protocol;		/* protocol */
300};
301#endif
302
303#include <sys/_sockaddr_storage.h>
304
305#if __BSD_VISIBLE
306/*
307 * Protocol families, same as address families for now.
308 */
309#define	PF_UNSPEC	AF_UNSPEC
310#define	PF_LOCAL	AF_LOCAL
311#define	PF_UNIX		PF_LOCAL	/* backward compatibility */
312#define	PF_INET		AF_INET
313#define	PF_IMPLINK	AF_IMPLINK
314#define	PF_PUP		AF_PUP
315#define	PF_CHAOS	AF_CHAOS
316#define	PF_NETBIOS	AF_NETBIOS
317#define	PF_ISO		AF_ISO
318#define	PF_OSI		AF_ISO
319#define	PF_ECMA		AF_ECMA
320#define	PF_DATAKIT	AF_DATAKIT
321#define	PF_CCITT	AF_CCITT
322#define	PF_SNA		AF_SNA
323#define PF_DECnet	AF_DECnet
324#define PF_DLI		AF_DLI
325#define PF_LAT		AF_LAT
326#define	PF_HYLINK	AF_HYLINK
327#define	PF_APPLETALK	AF_APPLETALK
328#define	PF_ROUTE	AF_ROUTE
329#define	PF_LINK		AF_LINK
330#define	PF_XTP		pseudo_AF_XTP	/* really just proto family, no AF */
331#define	PF_COIP		AF_COIP
332#define	PF_CNT		AF_CNT
333#define	PF_SIP		AF_SIP
334#define	PF_IPX		AF_IPX
335#define PF_RTIP		pseudo_AF_RTIP	/* same format as AF_INET */
336#define PF_PIP		pseudo_AF_PIP
337#define	PF_ISDN		AF_ISDN
338#define	PF_KEY		pseudo_AF_KEY
339#define	PF_INET6	AF_INET6
340#define	PF_NATM		AF_NATM
341#define	PF_ATM		AF_ATM
342#define	PF_NETGRAPH	AF_NETGRAPH
343#define	PF_SLOW		AF_SLOW
344#define PF_SCLUSTER	AF_SCLUSTER
345#define	PF_ARP		AF_ARP
346#define	PF_BLUETOOTH	AF_BLUETOOTH
347
348#define	PF_MAX		AF_MAX
349
350/*
351 * Definitions for network related sysctl, CTL_NET.
352 *
353 * Second level is protocol family.
354 * Third level is protocol number.
355 *
356 * Further levels are defined by the individual families below.
357 */
358#define NET_MAXID	AF_MAX
359
360#define CTL_NET_NAMES { \
361	{ 0, 0 }, \
362	{ "unix", CTLTYPE_NODE }, \
363	{ "inet", CTLTYPE_NODE }, \
364	{ "implink", CTLTYPE_NODE }, \
365	{ "pup", CTLTYPE_NODE }, \
366	{ "chaos", CTLTYPE_NODE }, \
367	{ "xerox_ns", CTLTYPE_NODE }, \
368	{ "iso", CTLTYPE_NODE }, \
369	{ "emca", CTLTYPE_NODE }, \
370	{ "datakit", CTLTYPE_NODE }, \
371	{ "ccitt", CTLTYPE_NODE }, \
372	{ "ibm_sna", CTLTYPE_NODE }, \
373	{ "decnet", CTLTYPE_NODE }, \
374	{ "dec_dli", CTLTYPE_NODE }, \
375	{ "lat", CTLTYPE_NODE }, \
376	{ "hylink", CTLTYPE_NODE }, \
377	{ "appletalk", CTLTYPE_NODE }, \
378	{ "route", CTLTYPE_NODE }, \
379	{ "link_layer", CTLTYPE_NODE }, \
380	{ "xtp", CTLTYPE_NODE }, \
381	{ "coip", CTLTYPE_NODE }, \
382	{ "cnt", CTLTYPE_NODE }, \
383	{ "rtip", CTLTYPE_NODE }, \
384	{ "ipx", CTLTYPE_NODE }, \
385	{ "sip", CTLTYPE_NODE }, \
386	{ "pip", CTLTYPE_NODE }, \
387	{ "isdn", CTLTYPE_NODE }, \
388	{ "key", CTLTYPE_NODE }, \
389	{ "inet6", CTLTYPE_NODE }, \
390	{ "natm", CTLTYPE_NODE }, \
391	{ "atm", CTLTYPE_NODE }, \
392	{ "hdrcomplete", CTLTYPE_NODE }, \
393	{ "netgraph", CTLTYPE_NODE }, \
394	{ "snp", CTLTYPE_NODE }, \
395	{ "scp", CTLTYPE_NODE }, \
396}
397
398/*
399 * PF_ROUTE - Routing table
400 *
401 * Three additional levels are defined:
402 *	Fourth: address family, 0 is wildcard
403 *	Fifth: type of info, defined below
404 *	Sixth: flag(s) to mask with for NET_RT_FLAGS
405 */
406#define NET_RT_DUMP	1		/* dump; may limit to a.f. */
407#define NET_RT_FLAGS	2		/* by flags, e.g. RESOLVING */
408#define NET_RT_IFLIST	3		/* survey interface list */
409#define	NET_RT_IFMALIST	4		/* return multicast address list */
410#define	NET_RT_IFLISTL	5		/* Survey interface list, using 'l'en
411					 * versions of msghdr structs. */
412#define	NET_RT_MAXID	6
413
414#define CTL_NET_RT_NAMES { \
415	{ 0, 0 }, \
416	{ "dump", CTLTYPE_STRUCT }, \
417	{ "flags", CTLTYPE_STRUCT }, \
418	{ "iflist", CTLTYPE_STRUCT }, \
419	{ "ifmalist", CTLTYPE_STRUCT }, \
420	{ "iflistl", CTLTYPE_STRUCT }, \
421}
422#endif /* __BSD_VISIBLE */
423
424/*
425 * Maximum queue length specifiable by listen.
426 */
427#define	SOMAXCONN	128
428
429/*
430 * Message header for recvmsg and sendmsg calls.
431 * Used value-result for recvmsg, value only for sendmsg.
432 */
433struct msghdr {
434	void		*msg_name;		/* optional address */
435	socklen_t	 msg_namelen;		/* size of address */
436	struct iovec	*msg_iov;		/* scatter/gather array */
437	int		 msg_iovlen;		/* # elements in msg_iov */
438	void		*msg_control;		/* ancillary data, see below */
439	socklen_t	 msg_controllen;	/* ancillary data buffer len */
440	int		 msg_flags;		/* flags on received message */
441};
442
443#define	MSG_OOB		0x1		/* process out-of-band data */
444#define	MSG_PEEK	0x2		/* peek at incoming message */
445#define	MSG_DONTROUTE	0x4		/* send without using routing tables */
446#define	MSG_EOR		0x8		/* data completes record */
447#define	MSG_TRUNC	0x10		/* data discarded before delivery */
448#define	MSG_CTRUNC	0x20		/* control data lost before delivery */
449#define	MSG_WAITALL	0x40		/* wait for full request or error */
450#define MSG_NOTIFICATION 0x2000         /* SCTP notification */
451#if __BSD_VISIBLE
452#define	MSG_DONTWAIT	0x80		/* this message should be nonblocking */
453#define	MSG_EOF		0x100		/* data completes connection */
454#define	MSG_NBIO	0x4000		/* FIONBIO mode, used by fifofs */
455#define	MSG_COMPAT      0x8000		/* used in sendit() */
456#endif
457#ifdef _KERNEL
458#define	MSG_SOCALLBCK   0x10000		/* for use by socket callbacks - soreceive (TCP) */
459#endif
460#if __BSD_VISIBLE
461#define	MSG_NOSIGNAL	0x20000		/* do not generate SIGPIPE on EOF */
462#endif
463
464/*
465 * Header for ancillary data objects in msg_control buffer.
466 * Used for additional information with/about a datagram
467 * not expressible by flags.  The format is a sequence
468 * of message elements headed by cmsghdr structures.
469 */
470struct cmsghdr {
471	socklen_t	cmsg_len;		/* data byte count, including hdr */
472	int		cmsg_level;		/* originating protocol */
473	int		cmsg_type;		/* protocol-specific type */
474/* followed by	u_char  cmsg_data[]; */
475};
476
477#if __BSD_VISIBLE
478/*
479 * While we may have more groups than this, the cmsgcred struct must
480 * be able to fit in an mbuf and we have historically supported a
481 * maximum of 16 groups.
482*/
483#define CMGROUP_MAX 16
484
485/*
486 * Credentials structure, used to verify the identity of a peer
487 * process that has sent us a message. This is allocated by the
488 * peer process but filled in by the kernel. This prevents the
489 * peer from lying about its identity. (Note that cmcred_groups[0]
490 * is the effective GID.)
491 */
492struct cmsgcred {
493	pid_t	cmcred_pid;		/* PID of sending process */
494	uid_t	cmcred_uid;		/* real UID of sending process */
495	uid_t	cmcred_euid;		/* effective UID of sending process */
496	gid_t	cmcred_gid;		/* real GID of sending process */
497	short	cmcred_ngroups;		/* number or groups */
498	gid_t	cmcred_groups[CMGROUP_MAX];	/* groups */
499};
500
501/*
502 * Socket credentials.
503 */
504struct sockcred {
505	uid_t	sc_uid;			/* real user id */
506	uid_t	sc_euid;		/* effective user id */
507	gid_t	sc_gid;			/* real group id */
508	gid_t	sc_egid;		/* effective group id */
509	int	sc_ngroups;		/* number of supplemental groups */
510	gid_t	sc_groups[1];		/* variable length */
511};
512
513/*
514 * Compute size of a sockcred structure with groups.
515 */
516#define	SOCKCREDSIZE(ngrps) \
517	(sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1)))
518
519#endif /* __BSD_VISIBLE */
520
521/* given pointer to struct cmsghdr, return pointer to data */
522#define	CMSG_DATA(cmsg)		((unsigned char *)(cmsg) + \
523				 _ALIGN(sizeof(struct cmsghdr)))
524
525/* given pointer to struct cmsghdr, return pointer to next cmsghdr */
526#define	CMSG_NXTHDR(mhdr, cmsg)	\
527	((char *)(cmsg) == NULL ? CMSG_FIRSTHDR(mhdr) : \
528	    ((char *)(cmsg) + _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len) + \
529	  _ALIGN(sizeof(struct cmsghdr)) > \
530	    (char *)(mhdr)->msg_control + (mhdr)->msg_controllen) ? \
531	    (struct cmsghdr *)0 : \
532	    (struct cmsghdr *)(void *)((char *)(cmsg) + \
533	    _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len)))
534
535/*
536 * RFC 2292 requires to check msg_controllen, in case that the kernel returns
537 * an empty list for some reasons.
538 */
539#define	CMSG_FIRSTHDR(mhdr) \
540	((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
541	 (struct cmsghdr *)(mhdr)->msg_control : \
542	 (struct cmsghdr *)NULL)
543
544#if __BSD_VISIBLE
545/* RFC 2292 additions */
546#define	CMSG_SPACE(l)		(_ALIGN(sizeof(struct cmsghdr)) + _ALIGN(l))
547#define	CMSG_LEN(l)		(_ALIGN(sizeof(struct cmsghdr)) + (l))
548#endif
549
550#ifdef _KERNEL
551#define	CMSG_ALIGN(n)	_ALIGN(n)
552#endif
553
554/* "Socket"-level control message types: */
555#define	SCM_RIGHTS	0x01		/* access rights (array of int) */
556#if __BSD_VISIBLE
557#define	SCM_TIMESTAMP	0x02		/* timestamp (struct timeval) */
558#define	SCM_CREDS	0x03		/* process creds (struct cmsgcred) */
559#define	SCM_BINTIME	0x04		/* timestamp (struct bintime) */
560#endif
561
562#if __BSD_VISIBLE
563/*
564 * 4.3 compat sockaddr, move to compat file later
565 */
566struct osockaddr {
567	unsigned short sa_family;	/* address family */
568	char	sa_data[14];		/* up to 14 bytes of direct address */
569};
570
571/*
572 * 4.3-compat message header (move to compat file later).
573 */
574struct omsghdr {
575	char	*msg_name;		/* optional address */
576	int	msg_namelen;		/* size of address */
577	struct	iovec *msg_iov;		/* scatter/gather array */
578	int	msg_iovlen;		/* # elements in msg_iov */
579	char	*msg_accrights;		/* access rights sent/received */
580	int	msg_accrightslen;
581};
582#endif
583
584/*
585 * howto arguments for shutdown(2), specified by Posix.1g.
586 */
587#define	SHUT_RD		0		/* shut down the reading side */
588#define	SHUT_WR		1		/* shut down the writing side */
589#define	SHUT_RDWR	2		/* shut down both sides */
590
591/* we cheat and use the SHUT_XX defines for these */
592#define PRU_FLUSH_RD     SHUT_RD
593#define PRU_FLUSH_WR     SHUT_WR
594#define PRU_FLUSH_RDWR   SHUT_RDWR
595
596
597#if __BSD_VISIBLE
598/*
599 * sendfile(2) header/trailer struct
600 */
601struct sf_hdtr {
602	struct iovec *headers;	/* pointer to an array of header struct iovec's */
603	int hdr_cnt;		/* number of header iovec's */
604	struct iovec *trailers;	/* pointer to an array of trailer struct iovec's */
605	int trl_cnt;		/* number of trailer iovec's */
606};
607
608/*
609 * Sendfile-specific flag(s)
610 */
611#define	SF_NODISKIO     0x00000001
612#define	SF_MNOWAIT	0x00000002
613#define	SF_SYNC		0x00000004
614#endif
615
616#ifndef	_KERNEL
617
618#include <sys/cdefs.h>
619
620__BEGIN_DECLS
621int	accept(int, struct sockaddr * __restrict, socklen_t * __restrict);
622int	bind(int, const struct sockaddr *, socklen_t);
623int	connect(int, const struct sockaddr *, socklen_t);
624int	getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict);
625int	getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict);
626int	getsockopt(int, int, int, void * __restrict, socklen_t * __restrict);
627int	listen(int, int);
628ssize_t	recv(int, void *, size_t, int);
629ssize_t	recvfrom(int, void *, size_t, int, struct sockaddr * __restrict, socklen_t * __restrict);
630ssize_t	recvmsg(int, struct msghdr *, int);
631ssize_t	send(int, const void *, size_t, int);
632ssize_t	sendto(int, const void *,
633	    size_t, int, const struct sockaddr *, socklen_t);
634ssize_t	sendmsg(int, const struct msghdr *, int);
635#if __BSD_VISIBLE
636int	sendfile(int, int, off_t, size_t, struct sf_hdtr *, off_t *, int);
637int	setfib(int);
638#endif
639int	setsockopt(int, int, int, const void *, socklen_t);
640int	shutdown(int, int);
641int	sockatmark(int);
642int	socket(int, int, int);
643int	socketpair(int, int, int, int *);
644__END_DECLS
645
646#endif /* !_KERNEL */
647
648#ifdef _KERNEL
649struct socket;
650
651struct tcpcb *so_sototcpcb(struct socket *so);
652struct inpcb *so_sotoinpcb(struct socket *so);
653struct sockbuf *so_sockbuf_snd(struct socket *);
654struct sockbuf *so_sockbuf_rcv(struct socket *);
655
656int so_state_get(const struct socket *);
657void so_state_set(struct socket *, int);
658
659int so_options_get(const struct socket *);
660void so_options_set(struct socket *, int);
661
662int so_error_get(const struct socket *);
663void so_error_set(struct socket *, int);
664
665int so_linger_get(const struct socket *);
666void so_linger_set(struct socket *, int);
667
668struct protosw *so_protosw_get(const struct socket *);
669void so_protosw_set(struct socket *, struct protosw *);
670
671void so_sorwakeup_locked(struct socket *so);
672void so_sowwakeup_locked(struct socket *so);
673
674void so_sorwakeup(struct socket *so);
675void so_sowwakeup(struct socket *so);
676
677void so_lock(struct socket *so);
678void so_unlock(struct socket *so);
679
680void so_listeners_apply_all(struct socket *so, void (*func)(struct socket *, void *), void *arg);
681
682#endif
683
684
685#endif /* !_SYS_SOCKET_H_ */