/*	$NetBSD: socket.h,v 1.16 1996/05/03 09:23:22 neil Exp $	*//* * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994 *	The Regents of the University of California.  All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software *    must display the following acknowledgement: *	This product includes software developed by the University of *	California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors *    may be used to endorse or promote products derived from this software *    without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * *	@(#)socket.h	8.4 (Berkeley) 2/21/94 */#ifndef _SYS_SOCKET_H_#define	_SYS_SOCKET_H_/* * Definitions related to sockets: types, address families, options. *//* * Types */#define	SOCK_STREAM	1		/* stream socket */#define	SOCK_DGRAM	2		/* datagram socket */#define	SOCK_RAW	3		/* raw-protocol interface */#define	SOCK_RDM	4		/* reliably-delivered message */#define	SOCK_SEQPACKET	5		/* sequenced packet stream *//* * Option flags per-socket. */#define	SO_DEBUG	0x0001		/* turn on debugging info recording */#define	SO_ACCEPTCONN	0x0002		/* socket has had listen() */#define	SO_REUSEADDR	0x0004		/* allow local address reuse */#define	SO_KEEPALIVE	0x0008		/* keep connections alive */#define	SO_DONTROUTE	0x0010		/* just use interface addresses */#define	SO_BROADCAST	0x0020		/* permit sending of broadcast msgs */#define	SO_USELOOPBACK	0x0040		/* bypass hardware when possible */#define	SO_LINGER	0x0080		/* linger on close if data present */#define	SO_OOBINLINE	0x0100		/* leave received OOB data in line */#define	SO_REUSEPORT	0x0200		/* allow local address & port reuse *//* * Additional options, not kept in so_options. */#define SO_SNDBUF	0x1001		/* send buffer size */#define SO_RCVBUF	0x1002		/* receive buffer size */#define SO_SNDLOWAT	0x1003		/* send low-water mark */#define SO_RCVLOWAT	0x1004		/* receive low-water mark */#define SO_SNDTIMEO	0x1005		/* send timeout */#define SO_RCVTIMEO	0x1006		/* receive timeout */#define	SO_ERROR	0x1007		/* get error status and clear */#define	SO_TYPE		0x1008		/* get socket type *//* * Structure used for manipulating linger option. */struct	linger {	int	l_onoff;		/* option on/off */	int	l_linger;		/* linger time */};/* * Level number for (get/set)sockopt() to apply to socket itself. */#define	SOL_SOCKET	0xffff		/* options for socket level *//* * Address families. */#define	AF_UNSPEC	0		/* unspecified */#define	AF_LOCAL	1		/* local to host (pipes, portals) */#define	AF_UNIX		AF_LOCAL	/* backward compatibility */#define	AF_INET		2		/* internetwork: UDP, TCP, etc. */#define	AF_IMPLINK	3		/* arpanet imp addresses */#define	AF_PUP		4		/* pup protocols: e.g. BSP */#define	AF_CHAOS	5		/* mit CHAOS protocols */#define	AF_NS		6		/* XEROX NS protocols */#define	AF_ISO		7		/* ISO protocols */#define	AF_OSI		AF_ISO#define	AF_ECMA		8		/* european computer manufacturers */#define	AF_DATAKIT	9		/* datakit protocols */#define	AF_CCITT	10		/* CCITT protocols, X.25 etc */#define	AF_SNA		11		/* IBM SNA */#define AF_DECnet	12		/* DECnet */#define AF_DLI		13		/* DEC Direct data link interface */#define AF_LAT		14		/* LAT */#define	AF_HYLINK	15		/* NSC Hyperchannel */#define	AF_APPLETALK	16		/* Apple Talk */#define	AF_ROUTE	17		/* Internal Routing Protocol */#define	AF_LINK		18		/* Link layer interface */#define	pseudo_AF_XTP	19		/* eXpress Transfer Protocol (no AF) */#define	AF_COIP		20		/* connection-oriented IP, aka ST II */#define	AF_CNT		21		/* Computer Network Technology */#define pseudo_AF_RTIP	22		/* Help Identify RTIP packets */#define	AF_IPX		23		/* Novell Internet Protocol */#define	AF_SIP		24		/* Simple Internet Protocol */#define pseudo_AF_PIP	25		/* Help Identify PIP packets */#define	AF_MAX		26/* * Structure used by kernel to store most * addresses. */struct sockaddr {	u_char	sa_len;			/* total length */	u_char	sa_family;		/* address family */	char	sa_data[14];		/* actually longer; address value */};/* * Structure used by kernel to pass protocol * information in raw sockets. */struct sockproto {	u_short	sp_family;		/* address family */	u_short	sp_protocol;		/* protocol */};/* * Protocol families, same as address families for now. */#define	PF_UNSPEC	AF_UNSPEC#define	PF_LOCAL	AF_LOCAL#define	PF_UNIX		PF_LOCAL	/* backward compatibility */#define	PF_INET		AF_INET#define	PF_IMPLINK	AF_IMPLINK#define	PF_PUP		AF_PUP#define	PF_CHAOS	AF_CHAOS#define	PF_NS		AF_NS#define	PF_ISO		AF_ISO#define	PF_OSI		AF_ISO#define	PF_ECMA		AF_ECMA#define	PF_DATAKIT	AF_DATAKIT#define	PF_CCITT	AF_CCITT#define	PF_SNA		AF_SNA#define PF_DECnet	AF_DECnet#define PF_DLI		AF_DLI#define PF_LAT		AF_LAT#define	PF_HYLINK	AF_HYLINK#define	PF_APPLETALK	AF_APPLETALK#define	PF_ROUTE	AF_ROUTE#define	PF_LINK		AF_LINK#define	PF_XTP		pseudo_AF_XTP	/* really just proto family, no AF */#define	PF_COIP		AF_COIP#define	PF_CNT		AF_CNT#define	PF_SIP		AF_SIP#define	PF_IPX		AF_IPX		/* same format as AF_NS */#define PF_RTIP		pseudo_AF_FTIP	/* same format as AF_INET */#define PF_PIP		pseudo_AF_PIP#define	PF_MAX		AF_MAX/* * Definitions for network related sysctl, CTL_NET. * * Second level is protocol family. * Third level is protocol number. * * Further levels are defined by the individual families below. */#define NET_MAXID	AF_MAX#define CTL_NET_NAMES { \	{ 0, 0 }, \	{ "unix", CTLTYPE_NODE }, \	{ "inet", CTLTYPE_NODE }, \	{ "implink", CTLTYPE_NODE }, \	{ "pup", CTLTYPE_NODE }, \	{ "chaos", CTLTYPE_NODE }, \	{ "xerox_ns", CTLTYPE_NODE }, \	{ "iso", CTLTYPE_NODE }, \	{ "emca", CTLTYPE_NODE }, \	{ "datakit", CTLTYPE_NODE }, \	{ "ccitt", CTLTYPE_NODE }, \	{ "ibm_sna", CTLTYPE_NODE }, \	{ "decnet", CTLTYPE_NODE }, \	{ "dec_dli", CTLTYPE_NODE }, \	{ "lat", CTLTYPE_NODE }, \	{ "hylink", CTLTYPE_NODE }, \	{ "appletalk", CTLTYPE_NODE }, \	{ "route", CTLTYPE_NODE }, \	{ "link_layer", CTLTYPE_NODE }, \	{ "xtp", CTLTYPE_NODE }, \	{ "coip", CTLTYPE_NODE }, \	{ "cnt", CTLTYPE_NODE }, \	{ "rtip", CTLTYPE_NODE }, \	{ "ipx", CTLTYPE_NODE }, \	{ "sip", CTLTYPE_NODE }, \	{ "pip", CTLTYPE_NODE }, \}/* * PF_ROUTE - Routing table * * Three additional levels are defined: *	Fourth: address family, 0 is wildcard *	Fifth: type of info, defined below *	Sixth: flag(s) to mask with for NET_RT_FLAGS */#define NET_RT_DUMP	1		/* dump; may limit to a.f. */#define NET_RT_FLAGS	2		/* by flags, e.g. RESOLVING */#define NET_RT_IFLIST	3		/* survey interface list */#define	NET_RT_MAXID	4#define CTL_NET_RT_NAMES { \	{ 0, 0 }, \	{ "dump", CTLTYPE_STRUCT }, \	{ "flags", CTLTYPE_STRUCT }, \	{ "iflist", CTLTYPE_STRUCT }, \}/* * Maximum queue length specifiable by listen(2). */#define	SOMAXCONN	128/* * Message header for recvmsg and sendmsg calls. * Used value-result for recvmsg, value only for sendmsg. */struct msghdr {	caddr_t	msg_name;		/* optional address */	u_int	msg_namelen;		/* size of address */	struct	iovec *msg_iov;		/* scatter/gather array */	u_int	msg_iovlen;		/* # elements in msg_iov */	caddr_t	msg_control;		/* ancillary data, see below */	u_int	msg_controllen;		/* ancillary data buffer len */	int	msg_flags;		/* flags on received message */};#define	MSG_OOB		0x1		/* process out-of-band data */#define	MSG_PEEK	0x2		/* peek at incoming message */#define	MSG_DONTROUTE	0x4		/* send without using routing tables */#define	MSG_EOR		0x8		/* data completes record */#define	MSG_TRUNC	0x10		/* data discarded before delivery */#define	MSG_CTRUNC	0x20		/* control data lost before delivery */#define	MSG_WAITALL	0x40		/* wait for full request or error */#define	MSG_DONTWAIT	0x80		/* this message should be nonblocking *//* * Header for ancillary data objects in msg_control buffer. * Used for additional information with/about a datagram * not expressible by flags.  The format is a sequence * of message elements headed by cmsghdr structures. */struct cmsghdr {	u_int	cmsg_len;		/* data byte count, including hdr */	int	cmsg_level;		/* originating protocol */	int	cmsg_type;		/* protocol-specific type *//* followed by	u_char  cmsg_data[]; */};/* given pointer to struct cmsghdr, return pointer to data */#define	CMSG_DATA(cmsg)		((u_char *)((cmsg) + 1))/* given pointer to struct cmsghdr, return pointer to next cmsghdr */#define	CMSG_NXTHDR(mhdr, cmsg)	\	(((caddr_t)(cmsg) + (cmsg)->cmsg_len + sizeof(struct cmsghdr) > \	    (mhdr)->msg_control + (mhdr)->msg_controllen) ? \	    (struct cmsghdr *)NULL : \	    (struct cmsghdr *)((caddr_t)(cmsg) + ALIGN((cmsg)->cmsg_len)))#define	CMSG_FIRSTHDR(mhdr)	((struct cmsghdr *)(mhdr)->msg_control)/* "Socket"-level control message types: */#define	SCM_RIGHTS	0x01		/* access rights (array of int) *//* * 4.3 compat sockaddr, move to compat file later */struct osockaddr {	u_short	sa_family;		/* address family */	char	sa_data[14];		/* up to 14 bytes of direct address */};/* * 4.3-compat message header (move to compat file later). */struct omsghdr {	caddr_t	msg_name;		/* optional address */	int	msg_namelen;		/* size of address */	struct	iovec *msg_iov;		/* scatter/gather array */	int	msg_iovlen;		/* # elements in msg_iov */	caddr_t	msg_accrights;		/* access rights sent/received */	int	msg_accrightslen;};#ifndef	_KERNEL#include <sys/cdefs.h>__BEGIN_DECLSint	accept __P((int, struct sockaddr *, int *));int	bind __P((int, const struct sockaddr *, int));int	connect __P((int, const struct sockaddr *, int));int	getpeername __P((int, struct sockaddr *, int *));int	getsockname __P((int, struct sockaddr *, int *));int	getsockopt __P((int, int, int, void *, int *));int	listen __P((int, int));ssize_t	recv __P((int, void *, size_t, int));ssize_t	recvfrom __P((int, void *, size_t, int, struct sockaddr *, int *));ssize_t	recvmsg __P((int, struct msghdr *, int));ssize_t	send __P((int, const void *, size_t, int));ssize_t	sendto __P((int, const void *,	    size_t, int, const struct sockaddr *, int));ssize_t	sendmsg __P((int, const struct msghdr *, int));int	setsockopt __P((int, int, int, const void *, int));int	shutdown __P((int, int));int	socket __P((int, int, int));int	socketpair __P((int, int, int, int *));__END_DECLS#else# if defined(COMPAT_43) || defined(COMPAT_SUNOS) || defined(COMPAT_LINUX) || \     defined(COMPAT_HPUX) || defined(COMPAT_FREEBSD)#  define COMPAT_OLDSOCK#  define MSG_COMPAT	0x8000# endif#endif /* !_KERNEL */#endif /* !_SYS_SOCKET_H_ */