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FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/sys/socket.h |
/*-
* 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.
* 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
* $FreeBSD: release/9.1.0/sys/sys/socket.h 232805 2012-03-11 00:48:54Z kib $
*/
#ifndef _SYS_SOCKET_H_
#define _SYS_SOCKET_H_
#include <sys/cdefs.h>
#include <sys/_types.h>
#include <sys/_iovec.h>
#include <machine/_align.h>
/*
* Definitions related to sockets: types, address families, options.
*/
/*
* Data types.
*/
#if __BSD_VISIBLE
#ifndef _GID_T_DECLARED
typedef __gid_t gid_t;
#define _GID_T_DECLARED
#endif
#ifndef _OFF_T_DECLARED
typedef __off_t off_t;
#define _OFF_T_DECLARED
#endif
#ifndef _PID_T_DECLARED
typedef __pid_t pid_t;
#define _PID_T_DECLARED
#endif
#endif
#ifndef _SA_FAMILY_T_DECLARED
typedef __sa_family_t sa_family_t;
#define _SA_FAMILY_T_DECLARED
#endif
#ifndef _SOCKLEN_T_DECLARED
typedef __socklen_t socklen_t;
#define _SOCKLEN_T_DECLARED
#endif
#ifndef _SSIZE_T_DECLARED
typedef __ssize_t ssize_t;
#define _SSIZE_T_DECLARED
#endif
#if __BSD_VISIBLE
#ifndef _UID_T_DECLARED
typedef __uid_t uid_t;
#define _UID_T_DECLARED
#endif
#endif
/*
* Types
*/
#define SOCK_STREAM 1 /* stream socket */
#define SOCK_DGRAM 2 /* datagram socket */
#define SOCK_RAW 3 /* raw-protocol interface */
#if __BSD_VISIBLE
#define SOCK_RDM 4 /* reliably-delivered message */
#endif
#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 */
#if __BSD_VISIBLE
#define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */
#endif
#define SO_LINGER 0x0080 /* linger on close if data present */
#define SO_OOBINLINE 0x0100 /* leave received OOB data in line */
#if __BSD_VISIBLE
#define SO_REUSEPORT 0x0200 /* allow local address & port reuse */
#define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */
#define SO_NOSIGPIPE 0x0800 /* no SIGPIPE from EPIPE */
#define SO_ACCEPTFILTER 0x1000 /* there is an accept filter */
#define SO_BINTIME 0x2000 /* timestamp received dgram traffic */
#endif
#define SO_NO_OFFLOAD 0x4000 /* socket cannot be offloaded */
#define SO_NO_DDP 0x8000 /* disable direct data placement */
/*
* 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 */
#if __BSD_VISIBLE
#define SO_LABEL 0x1009 /* socket's MAC label */
#define SO_PEERLABEL 0x1010 /* socket's peer's MAC label */
#define SO_LISTENQLIMIT 0x1011 /* socket's backlog limit */
#define SO_LISTENQLEN 0x1012 /* socket's complete queue length */
#define SO_LISTENINCQLEN 0x1013 /* socket's incomplete queue length */
#define SO_SETFIB 0x1014 /* use this FIB to route */
#define SO_USER_COOKIE 0x1015 /* user cookie (dummynet etc.) */
#define SO_PROTOCOL 0x1016 /* get socket protocol (Linux name) */
#define SO_PROTOTYPE SO_PROTOCOL /* alias for SO_PROTOCOL (SunOS name) */
#endif
/*
* Structure used for manipulating linger option.
*/
struct linger {
int l_onoff; /* option on/off */
int l_linger; /* linger time */
};
#if __BSD_VISIBLE
struct accept_filter_arg {
char af_name[16];
char af_arg[256-16];
};
#endif
/*
* 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 */
#if __BSD_VISIBLE
#define AF_LOCAL AF_UNIX /* local to host (pipes, portals) */
#endif
#define AF_UNIX 1 /* standardized name for AF_LOCAL */
#define AF_INET 2 /* internetwork: UDP, TCP, etc. */
#if __BSD_VISIBLE
#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_NETBIOS 6 /* SMB 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_ISDN 26 /* Integrated Services Digital Network*/
#define AF_E164 AF_ISDN /* CCITT E.164 recommendation */
#define pseudo_AF_KEY 27 /* Internal key-management function */
#endif
#define AF_INET6 28 /* IPv6 */
#if __BSD_VISIBLE
#define AF_NATM 29 /* native ATM access */
#define AF_ATM 30 /* ATM */
#define pseudo_AF_HDRCMPLT 31 /* Used by BPF to not rewrite headers
* in interface output routine
*/
#define AF_NETGRAPH 32 /* Netgraph sockets */
#define AF_SLOW 33 /* 802.3ad slow protocol */
#define AF_SCLUSTER 34 /* Sitara cluster protocol */
#define AF_ARP 35
#define AF_BLUETOOTH 36 /* Bluetooth sockets */
#define AF_IEEE80211 37 /* IEEE 802.11 protocol */
#define AF_MAX 38
/*
* When allocating a new AF_ constant, please only allocate
* even numbered constants for FreeBSD until 134 as odd numbered AF_
* constants 39-133 are now reserved for vendors.
*/
#define AF_VENDOR00 39
#define AF_VENDOR01 41
#define AF_VENDOR02 43
#define AF_VENDOR03 45
#define AF_VENDOR04 47
#define AF_VENDOR05 49
#define AF_VENDOR06 51
#define AF_VENDOR07 53
#define AF_VENDOR08 55
#define AF_VENDOR09 57
#define AF_VENDOR10 59
#define AF_VENDOR11 61
#define AF_VENDOR12 63
#define AF_VENDOR13 65
#define AF_VENDOR14 67
#define AF_VENDOR15 69
#define AF_VENDOR16 71
#define AF_VENDOR17 73
#define AF_VENDOR18 75
#define AF_VENDOR19 77
#define AF_VENDOR20 79
#define AF_VENDOR21 81
#define AF_VENDOR22 83
#define AF_VENDOR23 85
#define AF_VENDOR24 87
#define AF_VENDOR25 89
#define AF_VENDOR26 91
#define AF_VENDOR27 93
#define AF_VENDOR28 95
#define AF_VENDOR29 97
#define AF_VENDOR30 99
#define AF_VENDOR31 101
#define AF_VENDOR32 103
#define AF_VENDOR33 105
#define AF_VENDOR34 107
#define AF_VENDOR35 109
#define AF_VENDOR36 111
#define AF_VENDOR37 113
#define AF_VENDOR38 115
#define AF_VENDOR39 117
#define AF_VENDOR40 119
#define AF_VENDOR41 121
#define AF_VENDOR42 123
#define AF_VENDOR43 125
#define AF_VENDOR44 127
#define AF_VENDOR45 129
#define AF_VENDOR46 131
#define AF_VENDOR47 133
#endif
/*
* Structure used by kernel to store most
* addresses.
*/
struct sockaddr {
unsigned char sa_len; /* total length */
sa_family_t sa_family; /* address family */
char sa_data[14]; /* actually longer; address value */
};
#if __BSD_VISIBLE
#define SOCK_MAXADDRLEN 255 /* longest possible addresses */
/*
* Structure used by kernel to pass protocol
* information in raw sockets.
*/
struct sockproto {
unsigned short sp_family; /* address family */
unsigned short sp_protocol; /* protocol */
};
#endif
#include <sys/_sockaddr_storage.h>
#if __BSD_VISIBLE
/*
* 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_NETBIOS AF_NETBIOS
#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
#define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */
#define PF_PIP pseudo_AF_PIP
#define PF_ISDN AF_ISDN
#define PF_KEY pseudo_AF_KEY
#define PF_INET6 AF_INET6
#define PF_NATM AF_NATM
#define PF_ATM AF_ATM
#define PF_NETGRAPH AF_NETGRAPH
#define PF_SLOW AF_SLOW
#define PF_SCLUSTER AF_SCLUSTER
#define PF_ARP AF_ARP
#define PF_BLUETOOTH AF_BLUETOOTH
#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 }, \
{ "isdn", CTLTYPE_NODE }, \
{ "key", CTLTYPE_NODE }, \
{ "inet6", CTLTYPE_NODE }, \
{ "natm", CTLTYPE_NODE }, \
{ "atm", CTLTYPE_NODE }, \
{ "hdrcomplete", CTLTYPE_NODE }, \
{ "netgraph", CTLTYPE_NODE }, \
{ "snp", CTLTYPE_NODE }, \
{ "scp", 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_IFMALIST 4 /* return multicast address list */
#define NET_RT_IFLISTL 5 /* Survey interface list, using 'l'en
* versions of msghdr structs. */
#define NET_RT_MAXID 6
#define CTL_NET_RT_NAMES { \
{ 0, 0 }, \
{ "dump", CTLTYPE_STRUCT }, \
{ "flags", CTLTYPE_STRUCT }, \
{ "iflist", CTLTYPE_STRUCT }, \
{ "ifmalist", CTLTYPE_STRUCT }, \
{ "iflistl", CTLTYPE_STRUCT }, \
}
#endif /* __BSD_VISIBLE */
/*
* Maximum queue length specifiable by listen.
*/
#define SOMAXCONN 128
/*
* Message header for recvmsg and sendmsg calls.
* Used value-result for recvmsg, value only for sendmsg.
*/
struct msghdr {
void *msg_name; /* optional address */
socklen_t msg_namelen; /* size of address */
struct iovec *msg_iov; /* scatter/gather array */
int msg_iovlen; /* # elements in msg_iov */
void *msg_control; /* ancillary data, see below */
socklen_t 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_NOTIFICATION 0x2000 /* SCTP notification */
#if __BSD_VISIBLE
#define MSG_DONTWAIT 0x80 /* this message should be nonblocking */
#define MSG_EOF 0x100 /* data completes connection */
#define MSG_NBIO 0x4000 /* FIONBIO mode, used by fifofs */
#define MSG_COMPAT 0x8000 /* used in sendit() */
#endif
#ifdef _KERNEL
#define MSG_SOCALLBCK 0x10000 /* for use by socket callbacks - soreceive (TCP) */
#endif
#if __BSD_VISIBLE
#define MSG_NOSIGNAL 0x20000 /* do not generate SIGPIPE on EOF */
#endif
/*
* 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 {
socklen_t cmsg_len; /* data byte count, including hdr */
int cmsg_level; /* originating protocol */
int cmsg_type; /* protocol-specific type */
/* followed by u_char cmsg_data[]; */
};
#if __BSD_VISIBLE
/*
* While we may have more groups than this, the cmsgcred struct must
* be able to fit in an mbuf and we have historically supported a
* maximum of 16 groups.
*/
#define CMGROUP_MAX 16
/*
* Credentials structure, used to verify the identity of a peer
* process that has sent us a message. This is allocated by the
* peer process but filled in by the kernel. This prevents the
* peer from lying about its identity. (Note that cmcred_groups[0]
* is the effective GID.)
*/
struct cmsgcred {
pid_t cmcred_pid; /* PID of sending process */
uid_t cmcred_uid; /* real UID of sending process */
uid_t cmcred_euid; /* effective UID of sending process */
gid_t cmcred_gid; /* real GID of sending process */
short cmcred_ngroups; /* number or groups */
gid_t cmcred_groups[CMGROUP_MAX]; /* groups */
};
/*
* Socket credentials.
*/
struct sockcred {
uid_t sc_uid; /* real user id */
uid_t sc_euid; /* effective user id */
gid_t sc_gid; /* real group id */
gid_t sc_egid; /* effective group id */
int sc_ngroups; /* number of supplemental groups */
gid_t sc_groups[1]; /* variable length */
};
/*
* Compute size of a sockcred structure with groups.
*/
#define SOCKCREDSIZE(ngrps) \
(sizeof(struct sockcred) + (sizeof(gid_t) * ((ngrps) - 1)))
#endif /* __BSD_VISIBLE */
/* given pointer to struct cmsghdr, return pointer to data */
#define CMSG_DATA(cmsg) ((unsigned char *)(cmsg) + \
_ALIGN(sizeof(struct cmsghdr)))
/* given pointer to struct cmsghdr, return pointer to next cmsghdr */
#define CMSG_NXTHDR(mhdr, cmsg) \
((char *)(cmsg) == NULL ? CMSG_FIRSTHDR(mhdr) : \
((char *)(cmsg) + _ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len) + \
_ALIGN(sizeof(struct cmsghdr)) > \
(char *)(mhdr)->msg_control + (mhdr)->msg_controllen) ? \
(struct cmsghdr *)0 : \
(struct cmsghdr *)(void *)((char *)(cmsg) + \
_ALIGN(((struct cmsghdr *)(cmsg))->cmsg_len)))
/*
* RFC 2292 requires to check msg_controllen, in case that the kernel returns
* an empty list for some reasons.
*/
#define CMSG_FIRSTHDR(mhdr) \
((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
(struct cmsghdr *)(mhdr)->msg_control : \
(struct cmsghdr *)NULL)
#if __BSD_VISIBLE
/* RFC 2292 additions */
#define CMSG_SPACE(l) (_ALIGN(sizeof(struct cmsghdr)) + _ALIGN(l))
#define CMSG_LEN(l) (_ALIGN(sizeof(struct cmsghdr)) + (l))
#endif
#ifdef _KERNEL
#define CMSG_ALIGN(n) _ALIGN(n)
#endif
/* "Socket"-level control message types: */
#define SCM_RIGHTS 0x01 /* access rights (array of int) */
#if __BSD_VISIBLE
#define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */
#define SCM_CREDS 0x03 /* process creds (struct cmsgcred) */
#define SCM_BINTIME 0x04 /* timestamp (struct bintime) */
#endif
#if __BSD_VISIBLE
/*
* 4.3 compat sockaddr, move to compat file later
*/
struct osockaddr {
unsigned 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 {
char *msg_name; /* optional address */
int msg_namelen; /* size of address */
struct iovec *msg_iov; /* scatter/gather array */
int msg_iovlen; /* # elements in msg_iov */
char *msg_accrights; /* access rights sent/received */
int msg_accrightslen;
};
#endif
/*
* howto arguments for shutdown(2), specified by Posix.1g.
*/
#define SHUT_RD 0 /* shut down the reading side */
#define SHUT_WR 1 /* shut down the writing side */
#define SHUT_RDWR 2 /* shut down both sides */
/* we cheat and use the SHUT_XX defines for these */
#define PRU_FLUSH_RD SHUT_RD
#define PRU_FLUSH_WR SHUT_WR
#define PRU_FLUSH_RDWR SHUT_RDWR
#if __BSD_VISIBLE
/*
* sendfile(2) header/trailer struct
*/
struct sf_hdtr {
struct iovec *headers; /* pointer to an array of header struct iovec's */
int hdr_cnt; /* number of header iovec's */
struct iovec *trailers; /* pointer to an array of trailer struct iovec's */
int trl_cnt; /* number of trailer iovec's */
};
/*
* Sendfile-specific flag(s)
*/
#define SF_NODISKIO 0x00000001
#define SF_MNOWAIT 0x00000002
#define SF_SYNC 0x00000004
#endif
#ifndef _KERNEL
#include <sys/cdefs.h>
__BEGIN_DECLS
int accept(int, struct sockaddr * __restrict, socklen_t * __restrict);
int bind(int, const struct sockaddr *, socklen_t);
int connect(int, const struct sockaddr *, socklen_t);
int getpeername(int, struct sockaddr * __restrict, socklen_t * __restrict);
int getsockname(int, struct sockaddr * __restrict, socklen_t * __restrict);
int getsockopt(int, int, int, void * __restrict, socklen_t * __restrict);
int listen(int, int);
ssize_t recv(int, void *, size_t, int);
ssize_t recvfrom(int, void *, size_t, int, struct sockaddr * __restrict, socklen_t * __restrict);
ssize_t recvmsg(int, struct msghdr *, int);
ssize_t send(int, const void *, size_t, int);
ssize_t sendto(int, const void *,
size_t, int, const struct sockaddr *, socklen_t);
ssize_t sendmsg(int, const struct msghdr *, int);
#if __BSD_VISIBLE
int sendfile(int, int, off_t, size_t, struct sf_hdtr *, off_t *, int);
int setfib(int);
#endif
int setsockopt(int, int, int, const void *, socklen_t);
int shutdown(int, int);
int sockatmark(int);
int socket(int, int, int);
int socketpair(int, int, int, int *);
__END_DECLS
#endif /* !_KERNEL */
#ifdef _KERNEL
struct socket;
struct tcpcb *so_sototcpcb(struct socket *so);
struct inpcb *so_sotoinpcb(struct socket *so);
struct sockbuf *so_sockbuf_snd(struct socket *);
struct sockbuf *so_sockbuf_rcv(struct socket *);
int so_state_get(const struct socket *);
void so_state_set(struct socket *, int);
int so_options_get(const struct socket *);
void so_options_set(struct socket *, int);
int so_error_get(const struct socket *);
void so_error_set(struct socket *, int);
int so_linger_get(const struct socket *);
void so_linger_set(struct socket *, int);
struct protosw *so_protosw_get(const struct socket *);
void so_protosw_set(struct socket *, struct protosw *);
void so_sorwakeup_locked(struct socket *so);
void so_sowwakeup_locked(struct socket *so);
void so_sorwakeup(struct socket *so);
void so_sowwakeup(struct socket *so);
void so_lock(struct socket *so);
void so_unlock(struct socket *so);
void so_listeners_apply_all(struct socket *so, void (*func)(struct socket *, void *), void *arg);
#endif
#endif /* !_SYS_SOCKET_H_ */