socket.h revision 83045
11541Srgrimes/* 21541Srgrimes * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994 31541Srgrimes * The Regents of the University of California. All rights reserved. 41541Srgrimes * 51541Srgrimes * Redistribution and use in source and binary forms, with or without 61541Srgrimes * modification, are permitted provided that the following conditions 71541Srgrimes * are met: 81541Srgrimes * 1. Redistributions of source code must retain the above copyright 91541Srgrimes * notice, this list of conditions and the following disclaimer. 101541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111541Srgrimes * notice, this list of conditions and the following disclaimer in the 121541Srgrimes * documentation and/or other materials provided with the distribution. 131541Srgrimes * 3. All advertising materials mentioning features or use of this software 141541Srgrimes * must display the following acknowledgement: 151541Srgrimes * This product includes software developed by the University of 161541Srgrimes * California, Berkeley and its contributors. 171541Srgrimes * 4. Neither the name of the University nor the names of its contributors 181541Srgrimes * may be used to endorse or promote products derived from this software 191541Srgrimes * without specific prior written permission. 201541Srgrimes * 211541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311541Srgrimes * SUCH DAMAGE. 321541Srgrimes * 331541Srgrimes * @(#)socket.h 8.4 (Berkeley) 2/21/94 3450477Speter * $FreeBSD: head/sys/sys/socket.h 83045 2001-09-05 01:22:14Z obrien $ 351541Srgrimes */ 361541Srgrimes 371541Srgrimes#ifndef _SYS_SOCKET_H_ 381541Srgrimes#define _SYS_SOCKET_H_ 391541Srgrimes 4072554Sbde#include <machine/ansi.h> 4168498Sasmodai#define _NO_NAMESPACE_POLLUTION 4268498Sasmodai#include <machine/param.h> 4368498Sasmodai#undef _NO_NAMESPACE_POLLUTION 4468498Sasmodai 451541Srgrimes/* 461541Srgrimes * Definitions related to sockets: types, address families, options. 471541Srgrimes */ 481541Srgrimes 491541Srgrimes/* 5053678Sphk * Data types. 5153678Sphk */ 5253678Sphktypedef u_char sa_family_t; 5372510Sume#ifdef _BSD_SOCKLEN_T_ 5472510Sumetypedef _BSD_SOCKLEN_T_ socklen_t; 5572510Sume#undef _BSD_SOCKLEN_T_ 5672510Sume#endif 5753678Sphk 5853678Sphk/* 591541Srgrimes * Types 601541Srgrimes */ 611541Srgrimes#define SOCK_STREAM 1 /* stream socket */ 621541Srgrimes#define SOCK_DGRAM 2 /* datagram socket */ 631541Srgrimes#define SOCK_RAW 3 /* raw-protocol interface */ 641541Srgrimes#define SOCK_RDM 4 /* reliably-delivered message */ 651541Srgrimes#define SOCK_SEQPACKET 5 /* sequenced packet stream */ 661541Srgrimes 671541Srgrimes/* 681541Srgrimes * Option flags per-socket. 691541Srgrimes */ 701541Srgrimes#define SO_DEBUG 0x0001 /* turn on debugging info recording */ 711541Srgrimes#define SO_ACCEPTCONN 0x0002 /* socket has had listen() */ 721541Srgrimes#define SO_REUSEADDR 0x0004 /* allow local address reuse */ 731541Srgrimes#define SO_KEEPALIVE 0x0008 /* keep connections alive */ 741541Srgrimes#define SO_DONTROUTE 0x0010 /* just use interface addresses */ 751541Srgrimes#define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */ 761541Srgrimes#define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */ 771541Srgrimes#define SO_LINGER 0x0080 /* linger on close if data present */ 781541Srgrimes#define SO_OOBINLINE 0x0100 /* leave received OOB data in line */ 791541Srgrimes#define SO_REUSEPORT 0x0200 /* allow local address & port reuse */ 8015701Swollman#define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */ 8161837Salfred#define SO_ACCEPTFILTER 0x1000 /* there is an accept filter */ 821541Srgrimes 831541Srgrimes/* 841541Srgrimes * Additional options, not kept in so_options. 851541Srgrimes */ 861541Srgrimes#define SO_SNDBUF 0x1001 /* send buffer size */ 871541Srgrimes#define SO_RCVBUF 0x1002 /* receive buffer size */ 881541Srgrimes#define SO_SNDLOWAT 0x1003 /* send low-water mark */ 891541Srgrimes#define SO_RCVLOWAT 0x1004 /* receive low-water mark */ 901541Srgrimes#define SO_SNDTIMEO 0x1005 /* send timeout */ 911541Srgrimes#define SO_RCVTIMEO 0x1006 /* receive timeout */ 921541Srgrimes#define SO_ERROR 0x1007 /* get error status and clear */ 931541Srgrimes#define SO_TYPE 0x1008 /* get socket type */ 9425311Swollman/*efine SO_PRIVSTATE 0x1009 get/deny privileged state */ 951541Srgrimes 961541Srgrimes/* 971541Srgrimes * Structure used for manipulating linger option. 981541Srgrimes */ 9983045Sobrienstruct linger { 1001541Srgrimes int l_onoff; /* option on/off */ 1011541Srgrimes int l_linger; /* linger time */ 1021541Srgrimes}; 1031541Srgrimes 10483045Sobrienstruct accept_filter_arg { 10561837Salfred char af_name[16]; 10661837Salfred char af_arg[256-16]; 10761837Salfred}; 10861837Salfred 1091541Srgrimes/* 1101541Srgrimes * Level number for (get/set)sockopt() to apply to socket itself. 1111541Srgrimes */ 1121541Srgrimes#define SOL_SOCKET 0xffff /* options for socket level */ 1131541Srgrimes 1141541Srgrimes/* 1151541Srgrimes * Address families. 1161541Srgrimes */ 1171541Srgrimes#define AF_UNSPEC 0 /* unspecified */ 1181541Srgrimes#define AF_LOCAL 1 /* local to host (pipes, portals) */ 1191541Srgrimes#define AF_UNIX AF_LOCAL /* backward compatibility */ 1201541Srgrimes#define AF_INET 2 /* internetwork: UDP, TCP, etc. */ 1211541Srgrimes#define AF_IMPLINK 3 /* arpanet imp addresses */ 1221541Srgrimes#define AF_PUP 4 /* pup protocols: e.g. BSP */ 1231541Srgrimes#define AF_CHAOS 5 /* mit CHAOS protocols */ 1241541Srgrimes#define AF_NS 6 /* XEROX NS protocols */ 1251541Srgrimes#define AF_ISO 7 /* ISO protocols */ 1261541Srgrimes#define AF_OSI AF_ISO 12713765Smpp#define AF_ECMA 8 /* European computer manufacturers */ 1281541Srgrimes#define AF_DATAKIT 9 /* datakit protocols */ 1291541Srgrimes#define AF_CCITT 10 /* CCITT protocols, X.25 etc */ 1301541Srgrimes#define AF_SNA 11 /* IBM SNA */ 1311541Srgrimes#define AF_DECnet 12 /* DECnet */ 1321541Srgrimes#define AF_DLI 13 /* DEC Direct data link interface */ 1331541Srgrimes#define AF_LAT 14 /* LAT */ 1341541Srgrimes#define AF_HYLINK 15 /* NSC Hyperchannel */ 1351541Srgrimes#define AF_APPLETALK 16 /* Apple Talk */ 1361541Srgrimes#define AF_ROUTE 17 /* Internal Routing Protocol */ 1371541Srgrimes#define AF_LINK 18 /* Link layer interface */ 1381541Srgrimes#define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */ 1391541Srgrimes#define AF_COIP 20 /* connection-oriented IP, aka ST II */ 1401541Srgrimes#define AF_CNT 21 /* Computer Network Technology */ 1411541Srgrimes#define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */ 1421541Srgrimes#define AF_IPX 23 /* Novell Internet Protocol */ 1431541Srgrimes#define AF_SIP 24 /* Simple Internet Protocol */ 1445413Sse#define pseudo_AF_PIP 25 /* Help Identify PIP packets */ 1455413Sse#define AF_ISDN 26 /* Integrated Services Digital Network*/ 1465413Sse#define AF_E164 AF_ISDN /* CCITT E.164 recommendation */ 14716368Swollman#define pseudo_AF_KEY 27 /* Internal key-management function */ 14817938Speter#define AF_INET6 28 /* IPv6 */ 14925609Skjc#define AF_NATM 29 /* native ATM access */ 15039271Sphk#define AF_ATM 30 /* ATM */ 15152248Smsmith#define pseudo_AF_HDRCMPLT 31 /* Used by BPF to not rewrite headers 15252248Smsmith * in interface output routine 15352248Smsmith */ 15452424Sjulian#define AF_NETGRAPH 32 /* Netgraph sockets */ 15575847Sgrog#define AF_SLOW 33 /* 802.3ad slow protocol */ 15675847Sgrog#define AF_SCLUSTER 34 /* Sitara cluster protocol */ 15775847Sgrog#define AF_MAX 35 1581541Srgrimes 1591541Srgrimes/* 1601541Srgrimes * Structure used by kernel to store most 1611541Srgrimes * addresses. 1621541Srgrimes */ 1631541Srgrimesstruct sockaddr { 16453678Sphk u_char sa_len; /* total length */ 16553678Sphk sa_family_t sa_family; /* address family */ 16653678Sphk char sa_data[14]; /* actually longer; address value */ 1671541Srgrimes}; 16828270Swollman#define SOCK_MAXADDRLEN 255 /* longest possible addresses */ 1691541Srgrimes 1701541Srgrimes/* 1711541Srgrimes * Structure used by kernel to pass protocol 1721541Srgrimes * information in raw sockets. 1731541Srgrimes */ 1741541Srgrimesstruct sockproto { 1751541Srgrimes u_short sp_family; /* address family */ 1761541Srgrimes u_short sp_protocol; /* protocol */ 1771541Srgrimes}; 1781541Srgrimes 1791541Srgrimes/* 18066240Sasmodai * RFC 2553: protocol-independent placeholder for socket addresses 18152904Sshin */ 18252904Sshin#define _SS_MAXSIZE 128 18352904Sshin#define _SS_ALIGNSIZE (sizeof(int64_t)) 18457911Sshin#define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(u_char) - sizeof(sa_family_t)) 18557911Sshin#define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(u_char) - sizeof(sa_family_t) - \ 18652904Sshin _SS_PAD1SIZE - _SS_ALIGNSIZE) 18752904Sshin 18852904Sshinstruct sockaddr_storage { 18955917Sshin u_char ss_len; /* address length */ 19055917Sshin sa_family_t ss_family; /* address family */ 19153678Sphk char __ss_pad1[_SS_PAD1SIZE]; 19253678Sphk int64_t __ss_align; /* force desired structure storage alignment */ 19353678Sphk char __ss_pad2[_SS_PAD2SIZE]; 19452904Sshin}; 19552904Sshin 19652904Sshin/* 1971541Srgrimes * Protocol families, same as address families for now. 1981541Srgrimes */ 1991541Srgrimes#define PF_UNSPEC AF_UNSPEC 2001541Srgrimes#define PF_LOCAL AF_LOCAL 2011541Srgrimes#define PF_UNIX PF_LOCAL /* backward compatibility */ 2021541Srgrimes#define PF_INET AF_INET 2031541Srgrimes#define PF_IMPLINK AF_IMPLINK 2041541Srgrimes#define PF_PUP AF_PUP 2051541Srgrimes#define PF_CHAOS AF_CHAOS 2061541Srgrimes#define PF_NS AF_NS 2071541Srgrimes#define PF_ISO AF_ISO 2081541Srgrimes#define PF_OSI AF_ISO 2091541Srgrimes#define PF_ECMA AF_ECMA 2101541Srgrimes#define PF_DATAKIT AF_DATAKIT 2111541Srgrimes#define PF_CCITT AF_CCITT 2121541Srgrimes#define PF_SNA AF_SNA 2131541Srgrimes#define PF_DECnet AF_DECnet 2141541Srgrimes#define PF_DLI AF_DLI 2151541Srgrimes#define PF_LAT AF_LAT 2161541Srgrimes#define PF_HYLINK AF_HYLINK 2171541Srgrimes#define PF_APPLETALK AF_APPLETALK 2181541Srgrimes#define PF_ROUTE AF_ROUTE 2191541Srgrimes#define PF_LINK AF_LINK 2201541Srgrimes#define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */ 2211541Srgrimes#define PF_COIP AF_COIP 2221541Srgrimes#define PF_CNT AF_CNT 2231541Srgrimes#define PF_SIP AF_SIP 2241541Srgrimes#define PF_IPX AF_IPX /* same format as AF_NS */ 22517603Sjdp#define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */ 2261541Srgrimes#define PF_PIP pseudo_AF_PIP 2275413Sse#define PF_ISDN AF_ISDN 22816480Swollman#define PF_KEY pseudo_AF_KEY 22917938Speter#define PF_INET6 AF_INET6 23025609Skjc#define PF_NATM AF_NATM 23139271Sphk#define PF_ATM AF_ATM 23252419Sjulian#define PF_NETGRAPH AF_NETGRAPH 23375847Sgrog#define PF_SLOW AF_SLOW 23475847Sgrog#define PF_SCLUSTER AF_SCLUSTER 2351541Srgrimes 2361541Srgrimes#define PF_MAX AF_MAX 2371541Srgrimes 2381541Srgrimes/* 2391541Srgrimes * Definitions for network related sysctl, CTL_NET. 2401541Srgrimes * 2411541Srgrimes * Second level is protocol family. 2421541Srgrimes * Third level is protocol number. 2431541Srgrimes * 2441541Srgrimes * Further levels are defined by the individual families below. 2451541Srgrimes */ 2461541Srgrimes#define NET_MAXID AF_MAX 2471541Srgrimes 2481541Srgrimes#define CTL_NET_NAMES { \ 2491541Srgrimes { 0, 0 }, \ 2501541Srgrimes { "unix", CTLTYPE_NODE }, \ 2511541Srgrimes { "inet", CTLTYPE_NODE }, \ 2521541Srgrimes { "implink", CTLTYPE_NODE }, \ 2531541Srgrimes { "pup", CTLTYPE_NODE }, \ 2541541Srgrimes { "chaos", CTLTYPE_NODE }, \ 2551541Srgrimes { "xerox_ns", CTLTYPE_NODE }, \ 2561541Srgrimes { "iso", CTLTYPE_NODE }, \ 2571541Srgrimes { "emca", CTLTYPE_NODE }, \ 2581541Srgrimes { "datakit", CTLTYPE_NODE }, \ 2591541Srgrimes { "ccitt", CTLTYPE_NODE }, \ 2601541Srgrimes { "ibm_sna", CTLTYPE_NODE }, \ 2611541Srgrimes { "decnet", CTLTYPE_NODE }, \ 2621541Srgrimes { "dec_dli", CTLTYPE_NODE }, \ 2631541Srgrimes { "lat", CTLTYPE_NODE }, \ 2641541Srgrimes { "hylink", CTLTYPE_NODE }, \ 2651541Srgrimes { "appletalk", CTLTYPE_NODE }, \ 2661541Srgrimes { "route", CTLTYPE_NODE }, \ 2671541Srgrimes { "link_layer", CTLTYPE_NODE }, \ 2681541Srgrimes { "xtp", CTLTYPE_NODE }, \ 2691541Srgrimes { "coip", CTLTYPE_NODE }, \ 2701541Srgrimes { "cnt", CTLTYPE_NODE }, \ 2711541Srgrimes { "rtip", CTLTYPE_NODE }, \ 2721541Srgrimes { "ipx", CTLTYPE_NODE }, \ 2731541Srgrimes { "sip", CTLTYPE_NODE }, \ 2741541Srgrimes { "pip", CTLTYPE_NODE }, \ 27516368Swollman { "isdn", CTLTYPE_NODE }, \ 27616368Swollman { "key", CTLTYPE_NODE }, \ 27733006Salex { "inet6", CTLTYPE_NODE }, \ 27825609Skjc { "natm", CTLTYPE_NODE }, \ 27952435Sjulian { "atm", CTLTYPE_NODE }, \ 28052435Sjulian { "hdrcomplete", CTLTYPE_NODE }, \ 28152419Sjulian { "netgraph", CTLTYPE_NODE }, \ 28275847Sgrog { "snp", CTLTYPE_NODE }, \ 28375847Sgrog { "scp", CTLTYPE_NODE }, \ 2841541Srgrimes} 2851541Srgrimes 2861541Srgrimes/* 2871541Srgrimes * PF_ROUTE - Routing table 2881541Srgrimes * 2891541Srgrimes * Three additional levels are defined: 2901541Srgrimes * Fourth: address family, 0 is wildcard 2911541Srgrimes * Fifth: type of info, defined below 2921541Srgrimes * Sixth: flag(s) to mask with for NET_RT_FLAGS 2931541Srgrimes */ 2941541Srgrimes#define NET_RT_DUMP 1 /* dump; may limit to a.f. */ 2951541Srgrimes#define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */ 2961541Srgrimes#define NET_RT_IFLIST 3 /* survey interface list */ 2971541Srgrimes#define NET_RT_MAXID 4 2981541Srgrimes 2991541Srgrimes#define CTL_NET_RT_NAMES { \ 3001541Srgrimes { 0, 0 }, \ 3011541Srgrimes { "dump", CTLTYPE_STRUCT }, \ 3021541Srgrimes { "flags", CTLTYPE_STRUCT }, \ 3031541Srgrimes { "iflist", CTLTYPE_STRUCT }, \ 3041541Srgrimes} 3051541Srgrimes 3061541Srgrimes/* 3071541Srgrimes * Maximum queue length specifiable by listen. 3081541Srgrimes */ 30975458Salfred#ifndef SOMAXCONN 31013258Sdg#define SOMAXCONN 128 31175458Salfred#endif 3121541Srgrimes 3131541Srgrimes/* 3141541Srgrimes * Message header for recvmsg and sendmsg calls. 3151541Srgrimes * Used value-result for recvmsg, value only for sendmsg. 3161541Srgrimes */ 3171541Srgrimesstruct msghdr { 31853678Sphk void *msg_name; /* optional address */ 31953678Sphk socklen_t msg_namelen; /* size of address */ 32053678Sphk struct iovec *msg_iov; /* scatter/gather array */ 32153678Sphk int msg_iovlen; /* # elements in msg_iov */ 32253678Sphk void *msg_control; /* ancillary data, see below */ 32353678Sphk socklen_t msg_controllen; /* ancillary data buffer len */ 32453678Sphk int msg_flags; /* flags on received message */ 3251541Srgrimes}; 3261541Srgrimes 3271541Srgrimes#define MSG_OOB 0x1 /* process out-of-band data */ 3281541Srgrimes#define MSG_PEEK 0x2 /* peek at incoming message */ 3291541Srgrimes#define MSG_DONTROUTE 0x4 /* send without using routing tables */ 3301541Srgrimes#define MSG_EOR 0x8 /* data completes record */ 3311541Srgrimes#define MSG_TRUNC 0x10 /* data discarded before delivery */ 3321541Srgrimes#define MSG_CTRUNC 0x20 /* control data lost before delivery */ 3331541Srgrimes#define MSG_WAITALL 0x40 /* wait for full request or error */ 3341541Srgrimes#define MSG_DONTWAIT 0x80 /* this message should be nonblocking */ 3356223Swollman#define MSG_EOF 0x100 /* data completes connection */ 3363304Sphk#define MSG_COMPAT 0x8000 /* used in sendit() */ 3371541Srgrimes 3381541Srgrimes/* 3391541Srgrimes * Header for ancillary data objects in msg_control buffer. 3401541Srgrimes * Used for additional information with/about a datagram 3411541Srgrimes * not expressible by flags. The format is a sequence 3421541Srgrimes * of message elements headed by cmsghdr structures. 3431541Srgrimes */ 3441541Srgrimesstruct cmsghdr { 34553678Sphk socklen_t cmsg_len; /* data byte count, including hdr */ 34653678Sphk int cmsg_level; /* originating protocol */ 34753678Sphk int cmsg_type; /* protocol-specific type */ 3481541Srgrimes/* followed by u_char cmsg_data[]; */ 3491541Srgrimes}; 3501541Srgrimes 35124083Swpaul/* 35224083Swpaul * While we may have more groups than this, the cmsgcred struct must 35324083Swpaul * be able to fit in an mbuf, and NGROUPS_MAX is too large to allow 35424083Swpaul * this. 35524083Swpaul*/ 35624083Swpaul#define CMGROUP_MAX 16 35724083Swpaul 35824083Swpaul/* 35924083Swpaul * Credentials structure, used to verify the identity of a peer 36024083Swpaul * process that has sent us a message. This is allocated by the 36124083Swpaul * peer process but filled in by the kernel. This prevents the 36224083Swpaul * peer from lying about its identity. (Note that cmcred_groups[0] 36324083Swpaul * is the effective GID.) 36424083Swpaul */ 36524083Swpaulstruct cmsgcred { 36624083Swpaul pid_t cmcred_pid; /* PID of sending process */ 36724083Swpaul uid_t cmcred_uid; /* real UID of sending process */ 36824083Swpaul uid_t cmcred_euid; /* effective UID of sending process */ 36924083Swpaul gid_t cmcred_gid; /* real GID of sending process */ 37024083Swpaul short cmcred_ngroups; /* number or groups */ 37124083Swpaul gid_t cmcred_groups[CMGROUP_MAX]; /* groups */ 37224083Swpaul}; 37324083Swpaul 3741541Srgrimes/* given pointer to struct cmsghdr, return pointer to data */ 37557719Sshin#define CMSG_DATA(cmsg) ((u_char *)(cmsg) + \ 37678137Sume _ALIGN(sizeof(struct cmsghdr))) 3771541Srgrimes 3781541Srgrimes/* given pointer to struct cmsghdr, return pointer to next cmsghdr */ 3791541Srgrimes#define CMSG_NXTHDR(mhdr, cmsg) \ 38078137Sume (((caddr_t)(cmsg) + _ALIGN((cmsg)->cmsg_len) + \ 38178137Sume _ALIGN(sizeof(struct cmsghdr)) > \ 38255009Sshin (caddr_t)(mhdr)->msg_control + (mhdr)->msg_controllen) ? \ 3831541Srgrimes (struct cmsghdr *)NULL : \ 38478137Sume (struct cmsghdr *)((caddr_t)(cmsg) + _ALIGN((cmsg)->cmsg_len))) 3851541Srgrimes 3861541Srgrimes#define CMSG_FIRSTHDR(mhdr) ((struct cmsghdr *)(mhdr)->msg_control) 3871541Srgrimes 38866255Sasmodai/* RFC 2292 additions */ 38978137Sume 39078137Sume#define CMSG_SPACE(l) (_ALIGN(sizeof(struct cmsghdr)) + _ALIGN(l)) 39178137Sume#define CMSG_LEN(l) (_ALIGN(sizeof(struct cmsghdr)) + (l)) 39252904Sshin 39378137Sume#ifdef _KERNEL 39478137Sume#define CMSG_ALIGN(n) _ALIGN(n) 39578137Sume#endif 39678064Sume 3971541Srgrimes/* "Socket"-level control message types: */ 3981541Srgrimes#define SCM_RIGHTS 0x01 /* access rights (array of int) */ 39915701Swollman#define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */ 40024083Swpaul#define SCM_CREDS 0x03 /* process creds (struct cmsgcred) */ 4011541Srgrimes 4021541Srgrimes/* 4031541Srgrimes * 4.3 compat sockaddr, move to compat file later 4041541Srgrimes */ 4051541Srgrimesstruct osockaddr { 4061541Srgrimes u_short sa_family; /* address family */ 4071541Srgrimes char sa_data[14]; /* up to 14 bytes of direct address */ 4081541Srgrimes}; 4091541Srgrimes 4101541Srgrimes/* 4111541Srgrimes * 4.3-compat message header (move to compat file later). 4121541Srgrimes */ 4131541Srgrimesstruct omsghdr { 4141541Srgrimes caddr_t msg_name; /* optional address */ 4151541Srgrimes int msg_namelen; /* size of address */ 4161541Srgrimes struct iovec *msg_iov; /* scatter/gather array */ 4171541Srgrimes int msg_iovlen; /* # elements in msg_iov */ 4181541Srgrimes caddr_t msg_accrights; /* access rights sent/received */ 4191541Srgrimes int msg_accrightslen; 4201541Srgrimes}; 4211541Srgrimes 42239114Swollman/* 42339114Swollman * howto arguments for shutdown(2), specified by Posix.1g. 42439114Swollman */ 42539114Swollman#define SHUT_RD 0 /* shut down the reading side */ 42639114Swollman#define SHUT_WR 1 /* shut down the writing side */ 42739114Swollman#define SHUT_RDWR 2 /* shut down both sides */ 42839114Swollman 42940931Sdg/* 43040931Sdg * sendfile(2) header/trailer struct 43140931Sdg */ 43240931Sdgstruct sf_hdtr { 43340931Sdg struct iovec *headers; /* pointer to an array of header struct iovec's */ 43440931Sdg int hdr_cnt; /* number of header iovec's */ 43540931Sdg struct iovec *trailers; /* pointer to an array of trailer struct iovec's */ 43640931Sdg int trl_cnt; /* number of trailer iovec's */ 43740931Sdg}; 43840931Sdg 43955205Speter#ifndef _KERNEL 4401541Srgrimes 4411541Srgrimes#include <sys/cdefs.h> 4421541Srgrimes 4431541Srgrimes__BEGIN_DECLS 44453678Sphkint accept __P((int, struct sockaddr *, socklen_t *)); 44553678Sphkint bind __P((int, const struct sockaddr *, socklen_t)); 44653678Sphkint connect __P((int, const struct sockaddr *, socklen_t)); 44753678Sphkint getpeername __P((int, struct sockaddr *, socklen_t *)); 44853678Sphkint getsockname __P((int, struct sockaddr *, socklen_t *)); 44953678Sphkint getsockopt __P((int, int, int, void *, socklen_t *)); 4501541Srgrimesint listen __P((int, int)); 4511541Srgrimesssize_t recv __P((int, void *, size_t, int)); 45253678Sphkssize_t recvfrom __P((int, void *, size_t, int, struct sockaddr *, socklen_t *)); 4531541Srgrimesssize_t recvmsg __P((int, struct msghdr *, int)); 4541541Srgrimesssize_t send __P((int, const void *, size_t, int)); 4551541Srgrimesssize_t sendto __P((int, const void *, 45653678Sphk size_t, int, const struct sockaddr *, socklen_t)); 4571541Srgrimesssize_t sendmsg __P((int, const struct msghdr *, int)); 45840931Sdgint sendfile __P((int, int, off_t, size_t, struct sf_hdtr *, off_t *, int)); 45953678Sphkint setsockopt __P((int, int, int, const void *, socklen_t)); 4601541Srgrimesint shutdown __P((int, int)); 4611541Srgrimesint socket __P((int, int, int)); 4621541Srgrimesint socketpair __P((int, int, int, int *)); 4631541Srgrimes__END_DECLS 4641541Srgrimes 46555205Speter#endif /* !_KERNEL */ 46631927Sbde 4671541Srgrimes#endif /* !_SYS_SOCKET_H_ */ 468