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-rw-r--r--cpukit/libnetworking/include/sys/socket.h689
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diff --git a/cpukit/libnetworking/include/sys/socket.h b/cpukit/libnetworking/include/sys/socket.h
new file mode 100644
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+++ b/cpukit/libnetworking/include/sys/socket.h
@@ -0,0 +1,689 @@
+/*-
+ * 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: head/sys/sys/socket.h 301038 2016-05-31 13:32:33Z ed $
+ */
+
+#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
+
+#ifndef _UINT32_T_DECLARED
+typedef __uint32_t uint32_t;
+#define _UINT32_T_DECLARED
+#endif
+
+#ifndef _UINTPTR_T_DECLARED
+typedef __uintptr_t uintptr_t;
+#define _UINTPTR_T_DECLARED
+#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 */
+
+#if __BSD_VISIBLE
+/*
+ * Creation flags, OR'ed into socket() and socketpair() type argument.
+ */
+#define SOCK_CLOEXEC 0x10000000
+#define SOCK_NONBLOCK 0x20000000
+#endif
+
+/*
+ * 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
+
+/*
+ * Space reserved for new socket options added by third-party vendors.
+ * This range applies to all socket option levels. New socket options
+ * in FreeBSD should always use an option value less than SO_VENDOR.
+ */
+#if __BSD_VISIBLE
+#define SO_VENDOR 0x80000000
+#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_INET_SDP 40 /* OFED Socket Direct Protocol ipv4 */
+#define AF_INET6_SDP 42 /* OFED Socket Direct Protocol ipv6 */
+#define AF_MAX 42
+/*
+ * 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_IEEE80211 AF_IEEE80211
+#define PF_INET_SDP AF_INET_SDP
+#define PF_INET6_SDP AF_INET6_SDP
+
+#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.
+ */
+
+/*
+ * 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. */
+#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 */
+#if __POSIX_VISIBLE >= 200809
+#define MSG_NOSIGNAL 0x20000 /* do not generate SIGPIPE on EOF */
+#endif
+#if __BSD_VISIBLE
+#define MSG_DONTWAIT 0x80 /* this message should be nonblocking */
+#define MSG_EOF 0x100 /* data completes connection */
+#define MSG_NOTIFICATION 0x2000 /* SCTP notification */
+#define MSG_NBIO 0x4000 /* FIONBIO mode, used by fifofs */
+#define MSG_COMPAT 0x8000 /* used in sendit() */
+#define MSG_CMSG_CLOEXEC 0x40000 /* make received fds close-on-exec */
+#define MSG_WAITFORONE 0x80000 /* for recvmmsg() */
+#endif
+#ifdef _KERNEL
+#define MSG_SOCALLBCK 0x10000 /* for use by socket callbacks - soreceive (TCP) */
+#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) == (char *)0 ? 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 *)0)
+
+#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 */
+
+#if __BSD_VISIBLE
+/* for SCTP */
+/* 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
+#endif
+
+
+#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 /* obsolete */
+#define SF_SYNC 0x00000004
+#define SF_NOCACHE 0x00000010
+#define SF_FLAGS(rh, flags) (((rh) << 16) | (flags))
+
+#ifdef _KERNEL
+#define SF_READAHEAD(flags) ((flags) >> 16)
+#endif /* _KERNEL */
+
+/*
+ * Sendmmsg/recvmmsg specific structure(s)
+ */
+struct mmsghdr {
+ struct msghdr msg_hdr; /* message header */
+ ssize_t msg_len; /* message length */
+};
+#endif /* __BSD_VISIBLE */
+
+#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);
+#if __BSD_VISIBLE
+int accept4(int, struct sockaddr * __restrict, socklen_t * __restrict, int);
+int bindat(int, int, const struct sockaddr *, socklen_t);
+int connectat(int, int, const struct sockaddr *, socklen_t);
+#endif
+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);
+#if __BSD_VISIBLE
+struct timespec;
+ssize_t recvmmsg(int, struct mmsghdr * __restrict, size_t, int,
+ const struct timespec * __restrict);
+#endif
+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);
+ssize_t sendmmsg(int, struct mmsghdr * __restrict, size_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_ */