1/*
2 * Copyright (c) 2000-2013 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/* Copyright (c) 1998, 1999 Apple Computer, Inc. All Rights Reserved */
29/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
30/*
31 * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994
32 *	The Regents of the University of California.  All rights reserved.
33 *
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
36 * are met:
37 * 1. Redistributions of source code must retain the above copyright
38 *    notice, this list of conditions and the following disclaimer.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 *    notice, this list of conditions and the following disclaimer in the
41 *    documentation and/or other materials provided with the distribution.
42 * 3. All advertising materials mentioning features or use of this software
43 *    must display the following acknowledgement:
44 *	This product includes software developed by the University of
45 *	California, Berkeley and its contributors.
46 * 4. Neither the name of the University nor the names of its contributors
47 *    may be used to endorse or promote products derived from this software
48 *    without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
53 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
60 * SUCH DAMAGE.
61 *
62 *	@(#)socket.h	8.4 (Berkeley) 2/21/94
63 * $FreeBSD: src/sys/sys/socket.h,v 1.39.2.7 2001/07/03 11:02:01 ume Exp $
64 */
65/*
66 * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
67 * support for mandatory and extensible security protections.  This notice
68 * is included in support of clause 2.2 (b) of the Apple Public License,
69 * Version 2.0.
70 */
71
72#ifndef _SYS_SOCKET_H_
73#define	_SYS_SOCKET_H_
74
75#include <sys/types.h>
76#include <sys/cdefs.h>
77#include <machine/_param.h>
78
79#ifdef PRIVATE
80#include <sys/param.h>
81#include <uuid/uuid.h>
82#endif /* PRIVATE */
83
84#ifndef KERNEL
85#include <Availability.h>
86#endif
87
88/*
89 * Definitions related to sockets: types, address families, options.
90 */
91
92/*
93 * Data types.
94 */
95
96#include <sys/_types/_gid_t.h>
97#include <sys/_types/_off_t.h>
98#include <sys/_types/_pid_t.h>
99#include <sys/_types/_sa_family_t.h>
100#include <sys/_types/_socklen_t.h>
101
102/* XXX Not explicitly defined by POSIX, but function return types are */
103#include <sys/_types/_size_t.h>
104
105/* XXX Not explicitly defined by POSIX, but function return types are */
106#include <sys/_types/_ssize_t.h>
107
108/*
109 * [XSI] The iovec structure shall be defined as described in <sys/uio.h>.
110 */
111#include <sys/_types/_iovec_t.h>
112
113#ifdef PRIVATE
114#define SO_TCDBG_PID		0x01	/* Set/get traffic class for PID */
115#define SO_TCDBG_PNAME		0x02	/* Set/get traffic class for processes of that name */
116#define SO_TCDBG_PURGE		0x04	/* Purge entries for unused PIDs */
117#define SO_TCDBG_FLUSH		0x08	/* Flush all entries */
118#define SO_TCDBG_COUNT		0x10	/* Get count of entries */
119#define SO_TCDBG_LIST		0x20	/* List entries */
120#define SO_TCDBG_DELETE		0x40	/* Delete a process entry */
121#define SO_TCDBG_TCFLUSH_PID	0x80	/* Flush traffic class for PID */
122
123struct so_tcdbg {
124	u_int32_t	so_tcdbg_cmd;
125	int32_t		so_tcdbg_tclass;
126	u_int32_t	so_tcdbg_count;
127	pid_t		so_tcdbg_pid;
128	char		so_tcdbg_pname[MAXCOMLEN + 1];
129	int32_t		so_tcdbg_opportunistic; /* -1: unspecified, 0: off, 1: on, other: errors */
130};
131#endif /* PRIVATE */
132
133/*
134 * Types
135 */
136#define	SOCK_STREAM	1		/* stream socket */
137#define	SOCK_DGRAM	2		/* datagram socket */
138#define	SOCK_RAW	3		/* raw-protocol interface */
139#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
140#define	SOCK_RDM	4		/* reliably-delivered message */
141#endif	/* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
142#define	SOCK_SEQPACKET	5		/* sequenced packet stream */
143
144/*
145 * Option flags per-socket.
146 */
147#define	SO_DEBUG	0x0001		/* turn on debugging info recording */
148#define	SO_ACCEPTCONN	0x0002		/* socket has had listen() */
149#define	SO_REUSEADDR	0x0004		/* allow local address reuse */
150#define	SO_KEEPALIVE	0x0008		/* keep connections alive */
151#define	SO_DONTROUTE	0x0010		/* just use interface addresses */
152#define	SO_BROADCAST	0x0020		/* permit sending of broadcast msgs */
153#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
154#define	SO_USELOOPBACK	0x0040		/* bypass hardware when possible */
155#define SO_LINGER	0x0080          /* linger on close if data present (in ticks) */
156#else
157#define SO_LINGER	0x1080          /* linger on close if data present (in seconds) */
158#endif	/* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
159#define	SO_OOBINLINE	0x0100		/* leave received OOB data in line */
160#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
161#define	SO_REUSEPORT	0x0200		/* allow local address & port reuse */
162#define	SO_TIMESTAMP	0x0400		/* timestamp received dgram traffic */
163#define SO_TIMESTAMP_MONOTONIC	0x0800	/* Monotonically increasing timestamp on rcvd dgram */
164#ifndef __APPLE__
165#define	SO_ACCEPTFILTER	0x1000		/* there is an accept filter */
166#else
167#define SO_DONTTRUNC	0x2000		/* APPLE: Retain unread data */
168					/*  (ATOMIC proto) */
169#define SO_WANTMORE	0x4000		/* APPLE: Give hint when more data ready */
170#define SO_WANTOOBFLAG	0x8000		/* APPLE: Want OOB in MSG_FLAG on receive */
171
172#endif  /* (!__APPLE__) */
173#endif	/* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
174
175/*
176 * Additional options, not kept in so_options.
177 */
178#define SO_SNDBUF	0x1001		/* send buffer size */
179#define SO_RCVBUF	0x1002		/* receive buffer size */
180#define SO_SNDLOWAT	0x1003		/* send low-water mark */
181#define SO_RCVLOWAT	0x1004		/* receive low-water mark */
182#define SO_SNDTIMEO	0x1005		/* send timeout */
183#define SO_RCVTIMEO	0x1006		/* receive timeout */
184#define	SO_ERROR	0x1007		/* get error status and clear */
185#define	SO_TYPE		0x1008		/* get socket type */
186#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
187/*efine	SO_PRIVSTATE	0x1009		   get/deny privileged state */
188#define SO_LABEL        0x1010          /* socket's MAC label */
189#define SO_PEERLABEL    0x1011          /* socket's peer MAC label */
190#ifdef __APPLE__
191#define SO_NREAD	0x1020		/* APPLE: get 1st-packet byte count */
192#define SO_NKE		0x1021		/* APPLE: Install socket-level NKE */
193#define SO_NOSIGPIPE	0x1022		/* APPLE: No SIGPIPE on EPIPE */
194#define SO_NOADDRERR	0x1023		/* APPLE: Returns EADDRNOTAVAIL when src is not available anymore */
195#define SO_NWRITE	0x1024		/* APPLE: Get number of bytes currently in send socket buffer */
196#define SO_REUSESHAREUID	0x1025		/* APPLE: Allow reuse of port/socket by different userids */
197#ifdef __APPLE_API_PRIVATE
198#define SO_NOTIFYCONFLICT	0x1026	/* APPLE: send notification if there is a bind on a port which is already in use */
199#define	SO_UPCALLCLOSEWAIT	0x1027	/* APPLE: block on close until an upcall returns */
200#endif
201#define SO_LINGER_SEC	0x1080          /* linger on close if data present (in seconds) */
202#ifdef PRIVATE
203#define	SO_RESTRICTIONS	0x1081		/* APPLE: deny flag set */
204#define	 SO_RESTRICT_DENY_IN	0x1	/* deny inbound (trapdoor) */
205#define	 SO_RESTRICT_DENY_OUT	0x2	/* deny outbound (trapdoor) */
206#define	 SO_RESTRICT_DENY_CELLULAR 0x4	/* deny use of cellular (trapdoor) */
207#endif /* PRIVATE */
208#define SO_RANDOMPORT   0x1082  /* APPLE: request local port randomization */
209#define SO_NP_EXTENSIONS	0x1083	/* To turn off some POSIX behavior */
210#endif
211
212#ifdef PRIVATE
213#define	SO_EXECPATH	0x1085 		/* Application Firewall Socket option */
214/*
215 * Traffic service class definitions (lowest to highest):
216 *
217 * SO_TC_BK_SYS
218 *	"Background System-Initiated", high delay tolerant, high loss
219 *	tolerant, elastic flow, variable size & long-lived.  E.g: system-
220 *	initiated iCloud synching or Time Capsule backup, for which there
221 *	is no progress feedbacks.
222 *
223 * SO_TC_BK
224 *	"Background", user-initiated, high delay tolerant, high loss tolerant,
225 *	elastic flow, variable size.  E.g. user-initiated iCloud synching or
226 *	Time Capsule backup; or traffics of background applications, for which
227 *	there is some progress feedbacks.
228 *
229 * SO_TC_BE
230 *	"Best Effort", unclassified/standard.  This is the default service
231 *	class; pretty much a mix of everything.
232 *
233 * SO_TC_RD
234 *	"Responsive Data", a notch higher than "Best Effort", medium delay
235 *	tolerant, elastic & inelastic flow, bursty, long-lived.  E.g. email,
236 *	instant messaging, for which there is a sense of interactivity and
237 *	urgency (user waiting for output).
238 *
239 * SO_TC_OAM
240 *	"Operations, Administration, and Management", medium delay tolerant,
241 *	low-medium loss tolerant, elastic & inelastic flows, variable size.
242 *	E.g. VPN tunnels.
243 *
244 * SO_TC_AV
245 *	"Multimedia Audio/Video Streaming", medium delay tolerant, low-medium
246 *	loss tolerant, elastic flow, constant packet interval, variable rate &
247 *	size.  E.g. AirPlay playback (both video and audio).
248 *
249 * SO_TC_RV
250 *	"Responsive Multimedia Audio/Video", low delay tolerant, low-medium
251 *	loss tolerant, elastic flow, variable packet interval, rate and size.
252 *	E.g. AirPlay mirroring, screen sharing.
253 *
254 * SO_TC_VI
255 *	"Interactive Video", low delay tolerant, low-medium loss tolerant,
256 *	elastic flow, constant packet interval, variable rate & size.  E.g.
257 *	FaceTime video.
258 *
259 * SO_TC_VO
260 *	"Interactive Voice", low delay tolerant, low loss tolerant, inelastic
261 *	flow, constant packet rate, somewhat fixed size.  E.g. VoIP including
262 *	FaceTime audio.
263 *
264 * SO_TC_CTL
265 *	"Network Control", low delay tolerant, low loss tolerant, inelastic
266 *	flow, rate is bursty but short, variable size.  E.g. DNS queries;
267 *	certain types of locally-originated ICMP, ICMPv6; IGMP/MLD join/leave,
268 *	ARP.
269 */
270#define SO_TRAFFIC_CLASS	0x1086	/* Traffic service class (int) */
271#define	 SO_TC_BK_SYS	100		/* lowest class */
272#define	 SO_TC_BK	200
273#define  SO_TC_BE	0
274#define	 SO_TC_RD	300
275#define	 SO_TC_OAM	400
276#define	 SO_TC_AV	500
277#define	 SO_TC_RV	600
278#define	 SO_TC_VI	700
279#define	 SO_TC_VO	800
280#define	 SO_TC_CTL	900		/* highest class */
281#define  SO_TC_MAX	10		/* Total # of traffic classes */
282#ifdef XNU_KERNEL_PRIVATE
283#define  _SO_TC_BK	1		/* deprecated */
284#define  _SO_TC_VI	2		/* deprecated */
285#define  _SO_TC_VO	3		/* deprecated */
286#define  _SO_TC_MAX	4		/* deprecated */
287
288#define	SO_VALID_TC(c)							\
289	(c == SO_TC_BK_SYS || c == SO_TC_BK || c == SO_TC_BE ||		\
290	c == SO_TC_RD || c == SO_TC_OAM || c == SO_TC_AV ||		\
291	c == SO_TC_RV || c == SO_TC_VI || c == SO_TC_VO || c == SO_TC_CTL)
292#endif /* XNU_KERNEL_PRIVATE */
293
294/* Background socket configuration flags */
295#define TRAFFIC_MGT_SO_BACKGROUND       0x0001  /* background socket */
296#define TRAFFIC_MGT_TCP_RECVBG          0x0002  /* Only TCP sockets, receiver throttling */
297
298#define SO_RECV_TRAFFIC_CLASS	0x1087		/* Receive traffic class (bool)*/
299#define SO_TRAFFIC_CLASS_DBG	0x1088		/* Debug traffic class (struct so_tcdbg) */
300#define SO_TRAFFIC_CLASS_STATS	0x1089		/* Traffic class statistics */
301#define SO_PRIVILEGED_TRAFFIC_CLASS 0x1090	/* Privileged traffic class (bool) */
302#define	SO_DEFUNCTOK	0x1100		/* can be defunct'd */
303#define	SO_ISDEFUNCT	0x1101		/* get defunct status */
304
305#define	SO_OPPORTUNISTIC	0x1102	/* deprecated; use SO_TRAFFIC_CLASS */
306
307/*
308 * SO_FLUSH flushes any unsent data generated by a given socket.  It takes
309 * an integer parameter, which can be any of the SO_TC traffic class values,
310 * or the special SO_TC_ALL value.
311 */
312#define	SO_FLUSH	0x1103		/* flush unsent data (int) */
313#define	 SO_TC_ALL	(-1)
314
315#define	SO_RECV_ANYIF	0x1104		/* unrestricted inbound processing */
316#define	SO_TRAFFIC_MGT_BACKGROUND	0x1105	/* Background traffic management */
317
318#define	SO_FLOW_DIVERT_TOKEN	0x1106	/* flow divert token */
319
320#define	SO_DELEGATED		0x1107	/* set socket as delegate (pid_t) */
321#define	SO_DELEGATED_UUID	0x1108	/* set socket as delegate (uuid_t) */
322
323#endif /* PRIVATE */
324#endif	/* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
325
326/*
327 * Structure used for manipulating linger option.
328 */
329struct	linger {
330	int	l_onoff;		/* option on/off */
331	int	l_linger;		/* linger time */
332};
333
334#ifndef __APPLE__
335struct	accept_filter_arg {
336	char	af_name[16];
337	char	af_arg[256-16];
338};
339#endif
340
341#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
342#ifdef __APPLE__
343
344/*
345 * Structure to control non-portable Sockets extension to POSIX
346 */
347struct so_np_extensions {
348	u_int32_t	npx_flags;
349	u_int32_t	npx_mask;
350};
351
352#define SONPX_SETOPTSHUT	0x000000001     /* flag for allowing setsockopt after shutdown */
353
354
355#ifdef KERNEL_PRIVATE
356#define SONPX_MASK_VALID		(SONPX_SETOPTSHUT)
357#define IS_SO_TC_BACKGROUND(_tc_) ((_tc_) == SO_TC_BK || (_tc_) == SO_TC_BK_SYS)
358#endif /* KERNEL_PRIVATE */
359
360#endif
361#endif
362
363/*
364 * Level number for (get/set)sockopt() to apply to socket itself.
365 */
366#define	SOL_SOCKET	0xffff		/* options for socket level */
367
368
369/*
370 * Address families.
371 */
372#define	AF_UNSPEC	0		/* unspecified */
373#define	AF_UNIX		1		/* local to host (pipes) */
374#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
375#define	AF_LOCAL	AF_UNIX		/* backward compatibility */
376#endif	/* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
377#define	AF_INET		2		/* internetwork: UDP, TCP, etc. */
378#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
379#define	AF_IMPLINK	3		/* arpanet imp addresses */
380#define	AF_PUP		4		/* pup protocols: e.g. BSP */
381#define	AF_CHAOS	5		/* mit CHAOS protocols */
382#define	AF_NS		6		/* XEROX NS protocols */
383#define	AF_ISO		7		/* ISO protocols */
384#define	AF_OSI		AF_ISO
385#define	AF_ECMA		8		/* European computer manufacturers */
386#define	AF_DATAKIT	9		/* datakit protocols */
387#define	AF_CCITT	10		/* CCITT protocols, X.25 etc */
388#define	AF_SNA		11		/* IBM SNA */
389#define AF_DECnet	12		/* DECnet */
390#define AF_DLI		13		/* DEC Direct data link interface */
391#define AF_LAT		14		/* LAT */
392#define	AF_HYLINK	15		/* NSC Hyperchannel */
393#define	AF_APPLETALK	16		/* Apple Talk */
394#define	AF_ROUTE	17		/* Internal Routing Protocol */
395#define	AF_LINK		18		/* Link layer interface */
396#define	pseudo_AF_XTP	19		/* eXpress Transfer Protocol (no AF) */
397#define	AF_COIP		20		/* connection-oriented IP, aka ST II */
398#define	AF_CNT		21		/* Computer Network Technology */
399#define pseudo_AF_RTIP	22		/* Help Identify RTIP packets */
400#define	AF_IPX		23		/* Novell Internet Protocol */
401#define	AF_SIP		24		/* Simple Internet Protocol */
402#define pseudo_AF_PIP	25		/* Help Identify PIP packets */
403/*define pseudo_AF_BLUE	26	   Identify packets for Blue Box - Not used */
404#define AF_NDRV		27		/* Network Driver 'raw' access */
405#define	AF_ISDN		28		/* Integrated Services Digital Network*/
406#define	AF_E164		AF_ISDN		/* CCITT E.164 recommendation */
407#define	pseudo_AF_KEY	29		/* Internal key-management function */
408#endif	/* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
409#define	AF_INET6	30		/* IPv6 */
410#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
411#define	AF_NATM		31		/* native ATM access */
412#define AF_SYSTEM	32		/* Kernel event messages */
413#define AF_NETBIOS	33		/* NetBIOS */
414#define AF_PPP		34		/* PPP communication protocol */
415#define pseudo_AF_HDRCMPLT 35		/* Used by BPF to not rewrite headers
416					 * in interface output routine */
417#ifdef PRIVATE
418#define AF_AFP	36			/* Used by AFP */
419#else
420#define AF_RESERVED_36	36		/* Reserved for internal usage */
421#endif
422#define AF_IEEE80211    37              /* IEEE 802.11 protocol */
423#define AF_UTUN		38
424#ifdef PRIVATE
425#define	AF_MULTIPATH	39
426#endif /* PRIVATE */
427#define	AF_MAX		40
428#endif	/* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
429
430/*
431 * [XSI] Structure used by kernel to store most addresses.
432 */
433struct sockaddr {
434	__uint8_t	sa_len;		/* total length */
435	sa_family_t	sa_family;	/* [XSI] address family */
436	char		sa_data[14];	/* [XSI] addr value (actually larger) */
437};
438
439#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
440#define	SOCK_MAXADDRLEN	255		/* longest possible addresses */
441
442/*
443 * Structure used by kernel to pass protocol
444 * information in raw sockets.
445 */
446struct sockproto {
447	__uint16_t	sp_family;		/* address family */
448	__uint16_t	sp_protocol;		/* protocol */
449};
450#endif	/* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE)*/
451
452/*
453 * RFC 2553: protocol-independent placeholder for socket addresses
454 */
455#define	_SS_MAXSIZE	128
456#define	_SS_ALIGNSIZE	(sizeof(__int64_t))
457#define	_SS_PAD1SIZE	\
458		(_SS_ALIGNSIZE - sizeof(__uint8_t) - sizeof(sa_family_t))
459#define	_SS_PAD2SIZE	\
460		(_SS_MAXSIZE - sizeof(__uint8_t) - sizeof(sa_family_t) - \
461				_SS_PAD1SIZE - _SS_ALIGNSIZE)
462
463/*
464 * [XSI] sockaddr_storage
465 */
466struct sockaddr_storage {
467	__uint8_t	ss_len;		/* address length */
468	sa_family_t	ss_family;	/* [XSI] address family */
469	char			__ss_pad1[_SS_PAD1SIZE];
470	__int64_t	__ss_align;	/* force structure storage alignment */
471	char			__ss_pad2[_SS_PAD2SIZE];
472};
473
474#ifdef BSD_KERNEL_PRIVATE
475#include <sys/queue.h>
476
477struct sockaddr_entry {
478	TAILQ_ENTRY(sockaddr_entry)	se_link;
479	struct sockaddr			*se_addr;
480	uint32_t			se_flags;
481};
482
483#define	SEF_ATTACHED		1	/* attached to sockaddr_list */
484
485struct sockaddr_list {
486	TAILQ_HEAD(, sockaddr_entry)	sl_head;
487	uint32_t			sl_cnt;
488
489};
490#endif /* BSD_KERNEL_PRIVATE */
491
492/*
493 * Protocol families, same as address families for now.
494 */
495#define	PF_UNSPEC	AF_UNSPEC
496#define	PF_LOCAL	AF_LOCAL
497#define	PF_UNIX		PF_LOCAL	/* backward compatibility */
498#define	PF_INET		AF_INET
499#define	PF_IMPLINK	AF_IMPLINK
500#define	PF_PUP		AF_PUP
501#define	PF_CHAOS	AF_CHAOS
502#define	PF_NS		AF_NS
503#define	PF_ISO		AF_ISO
504#define	PF_OSI		AF_ISO
505#define	PF_ECMA		AF_ECMA
506#define	PF_DATAKIT	AF_DATAKIT
507#define	PF_CCITT	AF_CCITT
508#define	PF_SNA		AF_SNA
509#define PF_DECnet	AF_DECnet
510#define PF_DLI		AF_DLI
511#define PF_LAT		AF_LAT
512#define	PF_HYLINK	AF_HYLINK
513#define	PF_APPLETALK	AF_APPLETALK
514#define	PF_ROUTE	AF_ROUTE
515#define	PF_LINK		AF_LINK
516#define	PF_XTP		pseudo_AF_XTP	/* really just proto family, no AF */
517#define	PF_COIP		AF_COIP
518#define	PF_CNT		AF_CNT
519#define	PF_SIP		AF_SIP
520#define	PF_IPX		AF_IPX		/* same format as AF_NS */
521#define PF_RTIP		pseudo_AF_RTIP	/* same format as AF_INET */
522#define PF_PIP		pseudo_AF_PIP
523#define PF_NDRV		AF_NDRV
524#define	PF_ISDN		AF_ISDN
525#define	PF_KEY		pseudo_AF_KEY
526#define	PF_INET6	AF_INET6
527#define	PF_NATM		AF_NATM
528#define PF_SYSTEM	AF_SYSTEM
529#define PF_NETBIOS	AF_NETBIOS
530#define PF_PPP		AF_PPP
531#ifdef PRIVATE
532#define PF_AFP		AF_AFP
533#else
534#define PF_RESERVED_36  AF_RESERVED_36
535#endif
536#define PF_UTUN		AF_UTUN
537#ifdef PRIVATE
538#define	PF_MULTIPATH	AF_MULTIPATH
539#endif /* PRIVATE */
540#define	PF_MAX		AF_MAX
541
542/*
543 * These do not have socket-layer support:
544 */
545#define	PF_VLAN		((uint32_t)0x766c616e)	/* 'vlan' */
546#define PF_BOND		((uint32_t)0x626f6e64)	/* 'bond' */
547#ifdef KERNEL_PRIVATE
548#define PF_BRIDGE	((uint32_t)0x62726467)	/* 'brdg' */
549#endif /* KERNEL_PRIVATE */
550
551/*
552 * Definitions for network related sysctl, CTL_NET.
553 *
554 * Second level is protocol family.
555 * Third level is protocol number.
556 *
557 * Further levels are defined by the individual families below.
558 */
559#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
560#define NET_MAXID	AF_MAX
561#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
562
563#ifdef KERNEL_PRIVATE
564#define CTL_NET_NAMES { \
565	{ 0, 0 }, \
566	{ "local", CTLTYPE_NODE }, \
567	{ "inet", CTLTYPE_NODE }, \
568	{ "implink", CTLTYPE_NODE }, \
569	{ "pup", CTLTYPE_NODE }, \
570	{ "chaos", CTLTYPE_NODE }, \
571	{ "xerox_ns", CTLTYPE_NODE }, \
572	{ "iso", CTLTYPE_NODE }, \
573	{ "emca", CTLTYPE_NODE }, \
574	{ "datakit", CTLTYPE_NODE }, \
575	{ "ccitt", CTLTYPE_NODE }, \
576	{ "ibm_sna", CTLTYPE_NODE }, \
577	{ "decnet", CTLTYPE_NODE }, \
578	{ "dec_dli", CTLTYPE_NODE }, \
579	{ "lat", CTLTYPE_NODE }, \
580	{ "hylink", CTLTYPE_NODE }, \
581	{ "appletalk", CTLTYPE_NODE }, \
582	{ "route", CTLTYPE_NODE }, \
583	{ "link_layer", CTLTYPE_NODE }, \
584	{ "xtp", CTLTYPE_NODE }, \
585	{ "coip", CTLTYPE_NODE }, \
586	{ "cnt", CTLTYPE_NODE }, \
587	{ "rtip", CTLTYPE_NODE }, \
588	{ "ipx", CTLTYPE_NODE }, \
589	{ "sip", CTLTYPE_NODE }, \
590	{ "pip", CTLTYPE_NODE }, \
591	{ 0, 0 }, \
592	{ "ndrv", CTLTYPE_NODE }, \
593	{ "isdn", CTLTYPE_NODE }, \
594	{ "key", CTLTYPE_NODE }, \
595	{ "inet6", CTLTYPE_NODE }, \
596	{ "natm", CTLTYPE_NODE }, \
597	{ "sys", CTLTYPE_NODE }, \
598	{ "netbios", CTLTYPE_NODE }, \
599	{ "ppp", CTLTYPE_NODE }, \
600	{ "hdrcomplete", CTLTYPE_NODE }, \
601}
602#endif /* KERNEL_PRIVATE */
603
604#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
605/*
606 * PF_ROUTE - Routing table
607 *
608 * Three additional levels are defined:
609 *	Fourth: address family, 0 is wildcard
610 *	Fifth: type of info, defined below
611 *	Sixth: flag(s) to mask with for NET_RT_FLAGS
612 */
613#define NET_RT_DUMP		1	/* dump; may limit to a.f. */
614#define NET_RT_FLAGS		2	/* by flags, e.g. RESOLVING */
615#define NET_RT_IFLIST		3	/* survey interface list */
616#define NET_RT_STAT		4	/* routing statistics */
617#define NET_RT_TRASH		5	/* routes not in table but not freed */
618#define NET_RT_IFLIST2		6	/* interface list with addresses */
619#define NET_RT_DUMP2		7	/* dump; may limit to a.f. */
620#ifdef PRIVATE
621#define	NET_RT_DUMPX		8	/* private */
622#define	NET_RT_DUMPX_FLAGS	9	/* private */
623#endif /* PRIVATE */
624#define	NET_RT_MAXID		10
625#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
626
627#ifdef KERNEL_PRIVATE
628#define CTL_NET_RT_NAMES { \
629	{ 0, 0 }, \
630	{ "dump", CTLTYPE_STRUCT }, \
631	{ "flags", CTLTYPE_STRUCT }, \
632	{ "iflist", CTLTYPE_STRUCT }, \
633	{ "stat", CTLTYPE_STRUCT }, \
634	{ "trash", CTLTYPE_INT }, \
635	{ "iflist2", CTLTYPE_STRUCT }, \
636        { "dump2", CTLTYPE_STRUCT }, \
637        { "dumpx", CTLTYPE_STRUCT }, \
638        { "dumpx_flags", CTLTYPE_STRUCT }, \
639}
640
641#endif /* KERNEL_PRIVATE */
642
643/*
644 * Maximum queue length specifiable by listen.
645 */
646#define	SOMAXCONN	128
647
648/*
649 * [XSI] Message header for recvmsg and sendmsg calls.
650 * Used value-result for recvmsg, value only for sendmsg.
651 */
652struct msghdr {
653	void		*msg_name;	/* [XSI] optional address */
654	socklen_t	msg_namelen;	/* [XSI] size of address */
655	struct		iovec *msg_iov;	/* [XSI] scatter/gather array */
656	int		msg_iovlen;	/* [XSI] # elements in msg_iov */
657	void		*msg_control;	/* [XSI] ancillary data, see below */
658	socklen_t	msg_controllen;	/* [XSI] ancillary data buffer len */
659	int		msg_flags;	/* [XSI] flags on received message */
660};
661
662#ifdef KERNEL
663/*
664 * In-kernel representation of "struct msghdr" from
665 * userspace. Has enough precision for 32-bit or
666 * 64-bit clients, but does not need to be packed.
667 */
668
669struct user_msghdr {
670	user_addr_t	msg_name;		/* optional address */
671	socklen_t	msg_namelen;		/* size of address */
672	user_addr_t	msg_iov;		/* scatter/gather array */
673	int		msg_iovlen;		/* # elements in msg_iov */
674	user_addr_t	msg_control;		/* ancillary data, see below */
675	socklen_t	msg_controllen;		/* ancillary data buffer len */
676	int		msg_flags;		/* flags on received message */
677};
678
679/*
680 * LP64 user version of struct msghdr.
681 * WARNING - keep in sync with struct msghdr
682 */
683
684struct user64_msghdr {
685	user64_addr_t	msg_name;		/* optional address */
686	socklen_t	msg_namelen;		/* size of address */
687	user64_addr_t	msg_iov;		/* scatter/gather array */
688	int		msg_iovlen;		/* # elements in msg_iov */
689	user64_addr_t	msg_control;		/* ancillary data, see below */
690	socklen_t	msg_controllen;		/* ancillary data buffer len */
691	int		msg_flags;		/* flags on received message */
692};
693
694/*
695 * ILP32 user version of struct msghdr.
696 * WARNING - keep in sync with struct msghdr
697 */
698
699struct user32_msghdr {
700	user32_addr_t	msg_name;	/* optional address */
701	socklen_t	msg_namelen;	/* size of address */
702	user32_addr_t	msg_iov;	/* scatter/gather array */
703	int		msg_iovlen;	/* # elements in msg_iov */
704	user32_addr_t	msg_control;	/* ancillary data, see below */
705	socklen_t	msg_controllen;	/* ancillary data buffer len */
706	int		msg_flags;	/* flags on received message */
707};
708
709#endif // KERNEL
710
711#define	MSG_OOB		0x1		/* process out-of-band data */
712#define	MSG_PEEK	0x2		/* peek at incoming message */
713#define	MSG_DONTROUTE	0x4		/* send without using routing tables */
714#define	MSG_EOR		0x8		/* data completes record */
715#define	MSG_TRUNC	0x10		/* data discarded before delivery */
716#define	MSG_CTRUNC	0x20		/* control data lost before delivery */
717#define	MSG_WAITALL	0x40		/* wait for full request or error */
718#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
719#define	MSG_DONTWAIT	0x80		/* this message should be nonblocking */
720#define	MSG_EOF		0x100		/* data completes connection */
721#ifdef __APPLE__
722#ifndef PRIVATE
723#ifdef __APPLE_API_OBSOLETE
724#define MSG_WAITSTREAM  0x200           /* wait up to full request.. may return partial */
725#endif
726#else
727#define MSG_WAITSTREAM  0x200           /* wait up to full request.. may return partial */
728#endif
729#define MSG_FLUSH	0x400		/* Start of 'hold' seq; dump so_temp */
730#define MSG_HOLD	0x800		/* Hold frag in so_temp */
731#define MSG_SEND	0x1000		/* Send the packet in so_temp */
732#define MSG_HAVEMORE	0x2000		/* Data ready to be read */
733#define MSG_RCVMORE	0x4000		/* Data remains in current pkt */
734#endif
735#ifdef KERNEL_PRIVATE
736#define MSG_COMPAT      0x8000		/* deprecated */
737#endif /* KERNEL_PRIVATE */
738#define MSG_NEEDSA	0x10000		/* Fail receive if socket address cannot be allocated */
739#ifdef KERNEL_PRIVATE
740#define MSG_NBIO	0x20000		/* FIONBIO mode, used by fifofs */
741#endif
742#ifdef	KERNEL
743#define MSG_USEUPCALL	0x80000000 /* Inherit upcall in sock_accept */
744#endif
745#endif	/* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
746
747/*
748 * Header for ancillary data objects in msg_control buffer.
749 * Used for additional information with/about a datagram
750 * not expressible by flags.  The format is a sequence
751 * of message elements headed by cmsghdr structures.
752 */
753struct cmsghdr {
754	socklen_t	cmsg_len;	/* [XSI] data byte count, including hdr */
755	int		cmsg_level;	/* [XSI] originating protocol */
756	int		cmsg_type;	/* [XSI] protocol-specific type */
757/* followed by	unsigned char  cmsg_data[]; */
758};
759
760#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
761#ifndef __APPLE__
762/*
763 * While we may have more groups than this, the cmsgcred struct must
764 * be able to fit in an mbuf, and NGROUPS_MAX is too large to allow
765 * this.
766*/
767#define CMGROUP_MAX 16
768
769/*
770 * Credentials structure, used to verify the identity of a peer
771 * process that has sent us a message. This is allocated by the
772 * peer process but filled in by the kernel. This prevents the
773 * peer from lying about its identity. (Note that cmcred_groups[0]
774 * is the effective GID.)
775 */
776struct cmsgcred {
777	pid_t	cmcred_pid;		/* PID of sending process */
778	uid_t	cmcred_uid;		/* real UID of sending process */
779	uid_t	cmcred_euid;		/* effective UID of sending process */
780	gid_t	cmcred_gid;		/* real GID of sending process */
781	short	cmcred_ngroups;		/* number or groups */
782	gid_t	cmcred_groups[CMGROUP_MAX];	/* groups */
783};
784#endif
785#endif	/* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
786
787/* given pointer to struct cmsghdr, return pointer to data */
788#define	CMSG_DATA(cmsg)		((unsigned char *)(cmsg) + \
789				 __DARWIN_ALIGN32(sizeof(struct cmsghdr)))
790
791/*
792 * RFC 2292 requires to check msg_controllen, in case that the kernel returns
793 * an empty list for some reasons.
794 */
795#define CMSG_FIRSTHDR(mhdr) \
796        ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
797         (struct cmsghdr *)(mhdr)->msg_control : \
798         (struct cmsghdr *)0L)
799
800
801/*
802 * Given pointer to struct cmsghdr, return pointer to next cmsghdr
803 * RFC 2292 says that CMSG_NXTHDR(mhdr, NULL) is equivalent to CMSG_FIRSTHDR(mhdr)
804 */
805#define	CMSG_NXTHDR(mhdr, cmsg)						\
806	((char *)(cmsg) == (char *)0L ? CMSG_FIRSTHDR(mhdr) :		\
807	 ((((unsigned char *)(cmsg) +					\
808	    __DARWIN_ALIGN32((__uint32_t)(cmsg)->cmsg_len) +		\
809	    __DARWIN_ALIGN32(sizeof(struct cmsghdr))) >			\
810	    ((unsigned char *)(mhdr)->msg_control +			\
811	     (mhdr)->msg_controllen)) ?					\
812	  (struct cmsghdr *)0L /* NULL */ :				\
813	  (struct cmsghdr *)(void *)((unsigned char *)(cmsg) +		\
814	 		    __DARWIN_ALIGN32((__uint32_t)(cmsg)->cmsg_len))))
815
816#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
817/* RFC 2292 additions */
818#define	CMSG_SPACE(l)		(__DARWIN_ALIGN32(sizeof(struct cmsghdr)) + __DARWIN_ALIGN32(l))
819#define	CMSG_LEN(l)		(__DARWIN_ALIGN32(sizeof(struct cmsghdr)) + (l))
820
821#ifdef KERNEL
822#define	CMSG_ALIGN(n)	__DARWIN_ALIGN32(n)
823#endif
824#endif	/* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
825
826/* "Socket"-level control message types: */
827#define	SCM_RIGHTS			0x01	/* access rights (array of int) */
828#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
829#define	SCM_TIMESTAMP			0x02	/* timestamp (struct timeval) */
830#define	SCM_CREDS			0x03	/* process creds (struct cmsgcred) */
831#define	SCM_TIMESTAMP_MONOTONIC		0x04	/* timestamp (uint64_t) */
832
833#ifdef PRIVATE
834#define SCM_SEQNUM			0x05	/* TCP unordered recv seq no */
835#define SCM_MSG_PRIORITY		0x06	/* TCP unordered snd priority */
836#endif /* PRIVATE */
837
838#ifdef KERNEL_PRIVATE
839/*
840 * 4.3 compat sockaddr (deprecated)
841 */
842struct osockaddr {
843	__uint16_t	sa_family;	/* address family */
844	char	sa_data[14];		/* up to 14 bytes of direct address */
845};
846
847/*
848 * 4.3-compat message header (deprecated)
849 */
850struct omsghdr {
851	void		*msg_name;		/* optional address */
852	socklen_t	msg_namelen;		/* size of address */
853	struct	iovec	*msg_iov;		/* scatter/gather array */
854	int		msg_iovlen;		/* # elements in msg_iov */
855	void		*msg_accrights;		/* access rights sent/rcvd */
856	int		msg_accrightslen;
857};
858
859#define	SA(s)	((struct sockaddr *)(void *)(s))
860#endif /* KERNEL_PRIVATE */
861#endif	/* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
862
863/*
864 * howto arguments for shutdown(2), specified by Posix.1g.
865 */
866#define	SHUT_RD		0		/* shut down the reading side */
867#define	SHUT_WR		1		/* shut down the writing side */
868#define	SHUT_RDWR	2		/* shut down both sides */
869
870#if !defined(_POSIX_C_SOURCE)
871/*
872 * sendfile(2) header/trailer struct
873 */
874struct sf_hdtr {
875	struct iovec *headers;	/* pointer to an array of header struct iovec's */
876	int hdr_cnt;		/* number of header iovec's */
877	struct iovec *trailers;	/* pointer to an array of trailer struct iovec's */
878	int trl_cnt;		/* number of trailer iovec's */
879};
880
881#ifdef KERNEL
882
883/* In-kernel representation */
884struct user_sf_hdtr {
885	user_addr_t headers;	/* pointer to an array of header struct iovec's */
886	int hdr_cnt;		/* number of header iovec's */
887	user_addr_t trailers;	/* pointer to an array of trailer struct iovec's */
888	int trl_cnt;		/* number of trailer iovec's */
889};
890
891/* LP64 user version of struct sf_hdtr */
892struct user64_sf_hdtr {
893	user64_addr_t headers;	/* pointer to an array of header struct iovec's */
894	int hdr_cnt;		/* number of header iovec's */
895	user64_addr_t trailers;	/* pointer to an array of trailer struct iovec's */
896	int trl_cnt;		/* number of trailer iovec's */
897};
898
899/* ILP32 user version of struct sf_hdtr */
900struct user32_sf_hdtr {
901	user32_addr_t headers;	/* pointer to an array of header struct iovec's */
902	int hdr_cnt;		/* number of header iovec's */
903	user32_addr_t trailers;	/* pointer to an array of trailer struct iovec's */
904	int trl_cnt;		/* number of trailer iovec's */
905};
906
907#endif /* KERNEL */
908
909#endif	/* !_POSIX_C_SOURCE */
910
911#ifdef PRIVATE
912#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
913typedef __uint32_t associd_t;
914#define	ASSOCID_ANY	0
915#define	ASSOCID_ALL	((associd_t)(-1ULL))
916
917typedef __uint32_t connid_t;
918#define	CONNID_ANY	0
919#define	CONNID_ALL	((connid_t)(-1ULL))
920
921/*
922 * Structure for SIOCGASSOCIDS
923 */
924struct so_aidreq {
925	__uint32_t	sar_cnt;	/* number of associations */
926	associd_t	*sar_aidp;	/* array of association IDs */
927};
928
929#ifdef BSD_KERNEL_PRIVATE
930struct so_aidreq32 {
931	__uint32_t	sar_cnt;
932	user32_addr_t	sar_aidp;
933};
934
935struct so_aidreq64 {
936	__uint32_t	sar_cnt;
937	user64_addr_t	sar_aidp __attribute__((aligned(8)));
938};
939#endif /* BSD_KERNEL_PRIVATE */
940
941/*
942 * Structure for SIOCGCONNIDS
943 */
944struct so_cidreq {
945	associd_t	scr_aid;	/* association ID */
946	__uint32_t	scr_cnt;	/* number of connections */
947	connid_t	*scr_cidp;	/* array of connection IDs */
948};
949
950#ifdef BSD_KERNEL_PRIVATE
951struct so_cidreq32 {
952	associd_t	scr_aid;
953	__uint32_t	scr_cnt;
954	user32_addr_t	scr_cidp;
955};
956
957struct so_cidreq64 {
958	associd_t	scr_aid;
959	__uint32_t	scr_cnt;
960	user64_addr_t	scr_cidp __attribute__((aligned(8)));
961};
962#endif /* BSD_KERNEL_PRIVATE */
963
964/*
965 * Structure for SIOCGCONNINFO
966 */
967struct so_cinforeq {
968	connid_t	scir_cid;		/* connection ID */
969	__uint32_t	scir_flags;		/* see flags below */
970	__uint32_t	scir_ifindex;		/* (last) outbound interface */
971	__int32_t	scir_error;		/* most recent error */
972	struct sockaddr	*scir_src;		/* source address */
973	socklen_t	scir_src_len;		/* source address len */
974	struct sockaddr *scir_dst;		/* destination address */
975	socklen_t	scir_dst_len;		/* destination address len */
976	__uint32_t	scir_aux_type;		/* aux data type (CIAUX) */
977	void		*scir_aux_data;		/* aux data */
978	__uint32_t	scir_aux_len;		/* aux data len */
979};
980
981#ifdef BSD_KERNEL_PRIVATE
982struct so_cinforeq32 {
983	connid_t	scir_cid;
984	__uint32_t	scir_flags;
985	__uint32_t	scir_ifindex;
986	__int32_t	scir_error;
987	user32_addr_t	scir_src;
988	socklen_t	scir_src_len;
989	user32_addr_t	scir_dst;
990	socklen_t	scir_dst_len;
991	__uint32_t	scir_aux_type;
992	user32_addr_t	scir_aux_data;
993	__uint32_t	scir_aux_len;
994};
995
996struct so_cinforeq64 {
997	connid_t	scir_cid;
998	__uint32_t	scir_flags;
999	__uint32_t	scir_ifindex;
1000	__int32_t	scir_error;
1001	user64_addr_t	scir_src	__attribute__((aligned(8)));
1002	socklen_t	scir_src_len;
1003	user64_addr_t	scir_dst	__attribute__((aligned(8)));
1004	socklen_t	scir_dst_len;
1005	__uint32_t	scir_aux_type;
1006	user64_addr_t	scir_aux_data	__attribute__((aligned(8)));
1007	__uint32_t	scir_aux_len;
1008};
1009#endif /* BSD_KERNEL_PRIVATE */
1010
1011/* valid connection info flags */
1012#define	CIF_CONNECTING		0x1	/* connection was attempted */
1013#define	CIF_CONNECTED		0x2	/* connection is established */
1014#define	CIF_DISCONNECTING	0x4	/* disconnection was attempted */
1015#define	CIF_DISCONNECTED	0x8	/* has been disconnected */
1016#define	CIF_BOUND_IF		0x10	/* bound to an interface */
1017#define	CIF_BOUND_IP		0x20	/* bound to a src address */
1018#define	CIF_BOUND_PORT		0x40	/* bound to a src port */
1019#define	CIF_PREFERRED		0x80	/* connection is primary/preferred */
1020#define	CIF_MP_CAPABLE		0x100	/* supports multipath protocol */
1021#define	CIF_MP_READY		0x200	/* multipath protocol confirmed */
1022#define	CIF_MP_DEGRADED		0x400	/* has lost its multipath capability */
1023#define CIF_MP_ACTIVE		0x800	/* this is the active subflow */
1024
1025/* valid connection info auxiliary data types */
1026#define	CIAUX_TCP	0x1	/* TCP auxiliary data (conninfo_tcp_t) */
1027
1028/*
1029 * Structure for SIOC{S,G}CONNORDER
1030 */
1031struct so_cordreq {
1032	connid_t	sco_cid;		/* connection ID */
1033	__uint32_t	sco_rank;		/* rank (0 means unspecified) */
1034};
1035
1036/*
1037 * Network policy subclass (of KEV_NETWORK_CLASS)
1038 */
1039#define	KEV_NETPOLICY_SUBCLASS	3
1040
1041#define	KEV_NETPOLICY_IFDENIED	1	/* denied access to interface */
1042
1043/*
1044 * Common structure for KEV_NETPOLICY_SUBCLASS
1045 */
1046struct netpolicy_event_data {
1047	__uint64_t	eupid;		/* effective unique PID */
1048	pid_t		epid;		/* effective PID */
1049#if !defined(__LP64__)
1050	__uint32_t	pad;
1051#endif /* __LP64__ */
1052	uuid_t		euuid;		/* effective UUID */
1053};
1054
1055/*
1056 * NETPOLICY_IFDENIED event structure
1057 */
1058struct kev_netpolicy_ifdenied {
1059	struct netpolicy_event_data	ev_data;
1060};
1061
1062#ifndef	KERNEL
1063__BEGIN_DECLS
1064extern int connectx(int s, struct sockaddr *, socklen_t, struct sockaddr *,
1065    socklen_t, __uint32_t, associd_t, connid_t *);
1066extern int disconnectx(int s, associd_t, connid_t);
1067extern int peeloff(int s, associd_t);
1068extern int socket_delegate(int, int, int, pid_t);
1069__END_DECLS
1070#endif /* !KERNEL */
1071#endif	/* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
1072#endif /* PRIVATE */
1073
1074#ifndef	KERNEL
1075__BEGIN_DECLS
1076int	accept(int, struct sockaddr * __restrict, socklen_t * __restrict)
1077		__DARWIN_ALIAS_C(accept);
1078int	bind(int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS(bind);
1079int	connect(int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS_C( connect);
1080int	getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict)
1081		__DARWIN_ALIAS(getpeername);
1082int	getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict)
1083		__DARWIN_ALIAS(getsockname);
1084int	getsockopt(int, int, int, void * __restrict, socklen_t * __restrict);
1085int	listen(int, int) __DARWIN_ALIAS(listen);
1086ssize_t	recv(int, void *, size_t, int) __DARWIN_ALIAS_C(recv);
1087ssize_t	recvfrom(int, void *, size_t, int, struct sockaddr * __restrict,
1088		socklen_t * __restrict) __DARWIN_ALIAS_C(recvfrom);
1089ssize_t	recvmsg(int, struct msghdr *, int) __DARWIN_ALIAS_C(recvmsg);
1090ssize_t	send(int, const void *, size_t, int) __DARWIN_ALIAS_C(send);
1091ssize_t	sendmsg(int, const struct msghdr *, int) __DARWIN_ALIAS_C(sendmsg);
1092ssize_t	sendto(int, const void *, size_t,
1093		int, const struct sockaddr *, socklen_t) __DARWIN_ALIAS_C(sendto);
1094int	setsockopt(int, int, int, const void *, socklen_t);
1095int	shutdown(int, int);
1096int	sockatmark(int) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);
1097int	socket(int, int, int);
1098int	socketpair(int, int, int, int *) __DARWIN_ALIAS(socketpair);
1099
1100#if !defined(_POSIX_C_SOURCE)
1101int	sendfile(int, int, off_t, off_t *, struct sf_hdtr *, int);
1102#endif	/* !_POSIX_C_SOURCE */
1103
1104#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
1105void	pfctlinput(int, struct sockaddr *);
1106#endif	/* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
1107__END_DECLS
1108#endif /* !KERNEL */
1109
1110#ifdef KERNEL
1111#include <sys/kpi_socket.h>
1112#endif
1113
1114#endif /* !_SYS_SOCKET_H_ */
1115