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NetBSD/sys/sys/socket.h

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/* $NetBSD: socket.h,v 1.12 1995/03/29 22:10:11 briggs 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.
*/
#define SOMAXCONN 5
/*
* 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_DECLS
int 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
#endif /* !_KERNEL */
#endif /* !_SYS_SOCKET_H_ */
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