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Annotation of src/sys/sys/socket.h, Revision 1.19.4.2

1.19.4.2! is          1: /*     $NetBSD: socket.h,v 1.19 1997/02/11 17:47:44 is Exp $   */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994
        !             5:  *     The Regents of the University of California.  All rights reserved.
        !             6:  *
        !             7:  * Redistribution and use in source and binary forms, with or without
        !             8:  * modification, are permitted provided that the following conditions
        !             9:  * are met:
        !            10:  * 1. Redistributions of source code must retain the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer.
        !            12:  * 2. Redistributions in binary form must reproduce the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer in the
        !            14:  *    documentation and/or other materials provided with the distribution.
        !            15:  * 3. All advertising materials mentioning features or use of this software
        !            16:  *    must display the following acknowledgement:
        !            17:  *     This product includes software developed by the University of
        !            18:  *     California, Berkeley and its contributors.
        !            19:  * 4. Neither the name of the University nor the names of its contributors
        !            20:  *    may be used to endorse or promote products derived from this software
        !            21:  *    without specific prior written permission.
        !            22:  *
        !            23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            33:  * SUCH DAMAGE.
        !            34:  *
        !            35:  *     @(#)socket.h    8.4 (Berkeley) 2/21/94
        !            36:  */
        !            37:
        !            38: #ifndef _SYS_SOCKET_H_
        !            39: #define        _SYS_SOCKET_H_
        !            40:
        !            41: /*
        !            42:  * Definitions related to sockets: types, address families, options.
        !            43:  */
        !            44:
        !            45: /*
        !            46:  * Types
        !            47:  */
        !            48: #define        SOCK_STREAM     1               /* stream socket */
        !            49: #define        SOCK_DGRAM      2               /* datagram socket */
        !            50: #define        SOCK_RAW        3               /* raw-protocol interface */
        !            51: #define        SOCK_RDM        4               /* reliably-delivered message */
        !            52: #define        SOCK_SEQPACKET  5               /* sequenced packet stream */
        !            53:
        !            54: /*
        !            55:  * Option flags per-socket.
        !            56:  */
        !            57: #define        SO_DEBUG        0x0001          /* turn on debugging info recording */
        !            58: #define        SO_ACCEPTCONN   0x0002          /* socket has had listen() */
        !            59: #define        SO_REUSEADDR    0x0004          /* allow local address reuse */
        !            60: #define        SO_KEEPALIVE    0x0008          /* keep connections alive */
        !            61: #define        SO_DONTROUTE    0x0010          /* just use interface addresses */
        !            62: #define        SO_BROADCAST    0x0020          /* permit sending of broadcast msgs */
        !            63: #define        SO_USELOOPBACK  0x0040          /* bypass hardware when possible */
        !            64: #define        SO_LINGER       0x0080          /* linger on close if data present */
        !            65: #define        SO_OOBINLINE    0x0100          /* leave received OOB data in line */
        !            66: #define        SO_REUSEPORT    0x0200          /* allow local address & port reuse */
        !            67: #define        SO_TIMESTAMP    0x0400          /* timestamp received dgram traffic */
        !            68:
        !            69: /*
        !            70:  * Additional options, not kept in so_options.
        !            71:  */
        !            72: #define SO_SNDBUF      0x1001          /* send buffer size */
        !            73: #define SO_RCVBUF      0x1002          /* receive buffer size */
        !            74: #define SO_SNDLOWAT    0x1003          /* send low-water mark */
        !            75: #define SO_RCVLOWAT    0x1004          /* receive low-water mark */
        !            76: #define SO_SNDTIMEO    0x1005          /* send timeout */
        !            77: #define SO_RCVTIMEO    0x1006          /* receive timeout */
        !            78: #define        SO_ERROR        0x1007          /* get error status and clear */
        !            79: #define        SO_TYPE         0x1008          /* get socket type */
        !            80:
        !            81: /*
        !            82:  * Structure used for manipulating linger option.
        !            83:  */
        !            84: struct linger {
        !            85:        int     l_onoff;                /* option on/off */
        !            86:        int     l_linger;               /* linger time */
        !            87: };
        !            88:
        !            89: /*
        !            90:  * Level number for (get/set)sockopt() to apply to socket itself.
        !            91:  */
        !            92: #define        SOL_SOCKET      0xffff          /* options for socket level */
        !            93:
        !            94: /*
        !            95:  * Address families.
        !            96:  */
        !            97: #define        AF_UNSPEC       0               /* unspecified */
        !            98: #define        AF_LOCAL        1               /* local to host (pipes, portals) */
        !            99: #define        AF_UNIX         AF_LOCAL        /* backward compatibility */
        !           100: #define        AF_INET         2               /* internetwork: UDP, TCP, etc. */
        !           101: #define        AF_IMPLINK      3               /* arpanet imp addresses */
        !           102: #define        AF_PUP          4               /* pup protocols: e.g. BSP */
        !           103: #define        AF_CHAOS        5               /* mit CHAOS protocols */
        !           104: #define        AF_NS           6               /* XEROX NS protocols */
        !           105: #define        AF_ISO          7               /* ISO protocols */
        !           106: #define        AF_OSI          AF_ISO
        !           107: #define        AF_ECMA         8               /* european computer manufacturers */
        !           108: #define        AF_DATAKIT      9               /* datakit protocols */
        !           109: #define        AF_CCITT        10              /* CCITT protocols, X.25 etc */
        !           110: #define        AF_SNA          11              /* IBM SNA */
        !           111: #define AF_DECnet      12              /* DECnet */
        !           112: #define AF_DLI         13              /* DEC Direct data link interface */
        !           113: #define AF_LAT         14              /* LAT */
        !           114: #define        AF_HYLINK       15              /* NSC Hyperchannel */
        !           115: #define        AF_APPLETALK    16              /* Apple Talk */
        !           116: #define        AF_ROUTE        17              /* Internal Routing Protocol */
        !           117: #define        AF_LINK         18              /* Link layer interface */
        !           118: #define        pseudo_AF_XTP   19              /* eXpress Transfer Protocol (no AF) */
        !           119: #define        AF_COIP         20              /* connection-oriented IP, aka ST II */
        !           120: #define        AF_CNT          21              /* Computer Network Technology */
        !           121: #define pseudo_AF_RTIP 22              /* Help Identify RTIP packets */
        !           122: #define        AF_IPX          23              /* Novell Internet Protocol */
        !           123: #define        AF_SIP          24              /* Simple Internet Protocol */
        !           124: #define pseudo_AF_PIP  25              /* Help Identify PIP packets */
        !           125: #define AF_ISDN                26              /* Integrated Services Digital Network*/
        !           126: #define AF_E164                AF_ISDN         /* CCITT E.164 recommendation */
        !           127: #define AF_NATM                27              /* native ATM access */
        !           128: #define AF_ARP         28              /* (rev.) addr. res. prot. (RFC 826) */
        !           129:
        !           130: #define        AF_MAX          29
        !           131:
        !           132: /*
        !           133:  * Structure used by kernel to store most
        !           134:  * addresses.
        !           135:  */
        !           136: struct sockaddr {
        !           137:        u_char  sa_len;                 /* total length */
        !           138:        u_char  sa_family;              /* address family */
        !           139:        char    sa_data[14];            /* actually longer; address value */
        !           140: };
        !           141:
        !           142: /*
        !           143:  * Structure used by kernel to pass protocol
        !           144:  * information in raw sockets.
        !           145:  */
        !           146: struct sockproto {
        !           147:        u_short sp_family;              /* address family */
        !           148:        u_short sp_protocol;            /* protocol */
        !           149: };
        !           150:
        !           151: /*
        !           152:  * Protocol families, same as address families for now.
        !           153:  */
        !           154: #define        PF_UNSPEC       AF_UNSPEC
        !           155: #define        PF_LOCAL        AF_LOCAL
        !           156: #define        PF_UNIX         PF_LOCAL        /* backward compatibility */
        !           157: #define        PF_INET         AF_INET
        !           158: #define        PF_IMPLINK      AF_IMPLINK
        !           159: #define        PF_PUP          AF_PUP
        !           160: #define        PF_CHAOS        AF_CHAOS
        !           161: #define        PF_NS           AF_NS
        !           162: #define        PF_ISO          AF_ISO
        !           163: #define        PF_OSI          AF_ISO
        !           164: #define        PF_ECMA         AF_ECMA
        !           165: #define        PF_DATAKIT      AF_DATAKIT
        !           166: #define        PF_CCITT        AF_CCITT
        !           167: #define        PF_SNA          AF_SNA
        !           168: #define PF_DECnet      AF_DECnet
        !           169: #define PF_DLI         AF_DLI
        !           170: #define PF_LAT         AF_LAT
        !           171: #define        PF_HYLINK       AF_HYLINK
        !           172: #define        PF_APPLETALK    AF_APPLETALK
        !           173: #define        PF_ROUTE        AF_ROUTE
        !           174: #define        PF_LINK         AF_LINK
        !           175: #define        PF_XTP          pseudo_AF_XTP   /* really just proto family, no AF */
        !           176: #define        PF_COIP         AF_COIP
        !           177: #define        PF_CNT          AF_CNT
        !           178: #define        PF_SIP          AF_SIP
        !           179: #define        PF_IPX          AF_IPX          /* same format as AF_NS */
        !           180: #define PF_RTIP                pseudo_AF_FTIP  /* same format as AF_INET */
        !           181: #define PF_PIP         pseudo_AF_PIP
        !           182: #define PF_NATM                AF_NATM
        !           183: #define PF_ARP         AF_ARP
        !           184:
        !           185: #define        PF_MAX          AF_MAX
        !           186:
        !           187: /*
        !           188:  * Definitions for network related sysctl, CTL_NET.
        !           189:  *
        !           190:  * Second level is protocol family.
        !           191:  * Third level is protocol number.
        !           192:  *
        !           193:  * Further levels are defined by the individual families below.
        !           194:  */
        !           195: #define NET_MAXID      AF_MAX
        !           196:
        !           197: #define CTL_NET_NAMES { \
        !           198:        { 0, 0 }, \
        !           199:        { "unix", CTLTYPE_NODE }, \
        !           200:        { "inet", CTLTYPE_NODE }, \
        !           201:        { "implink", CTLTYPE_NODE }, \
        !           202:        { "pup", CTLTYPE_NODE }, \
        !           203:        { "chaos", CTLTYPE_NODE }, \
        !           204:        { "xerox_ns", CTLTYPE_NODE }, \
        !           205:        { "iso", CTLTYPE_NODE }, \
        !           206:        { "emca", CTLTYPE_NODE }, \
        !           207:        { "datakit", CTLTYPE_NODE }, \
        !           208:        { "ccitt", CTLTYPE_NODE }, \
        !           209:        { "ibm_sna", CTLTYPE_NODE }, \
        !           210:        { "decnet", CTLTYPE_NODE }, \
        !           211:        { "dec_dli", CTLTYPE_NODE }, \
        !           212:        { "lat", CTLTYPE_NODE }, \
        !           213:        { "hylink", CTLTYPE_NODE }, \
        !           214:        { "appletalk", CTLTYPE_NODE }, \
        !           215:        { "route", CTLTYPE_NODE }, \
        !           216:        { "link_layer", CTLTYPE_NODE }, \
        !           217:        { "xtp", CTLTYPE_NODE }, \
        !           218:        { "coip", CTLTYPE_NODE }, \
        !           219:        { "cnt", CTLTYPE_NODE }, \
        !           220:        { "rtip", CTLTYPE_NODE }, \
        !           221:        { "ipx", CTLTYPE_NODE }, \
        !           222:        { "sip", CTLTYPE_NODE }, \
        !           223:        { "pip", CTLTYPE_NODE }, \
        !           224:        { "natm", CTLTYPE_NODE }, \
        !           225: }
        !           226:
        !           227: /*
        !           228:  * PF_ROUTE - Routing table
        !           229:  *
        !           230:  * Three additional levels are defined:
        !           231:  *     Fourth: address family, 0 is wildcard
        !           232:  *     Fifth: type of info, defined below
        !           233:  *     Sixth: flag(s) to mask with for NET_RT_FLAGS
        !           234:  */
        !           235: #define NET_RT_DUMP    1               /* dump; may limit to a.f. */
        !           236: #define NET_RT_FLAGS   2               /* by flags, e.g. RESOLVING */
        !           237: #define NET_RT_IFLIST  3               /* survey interface list */
        !           238: #define        NET_RT_MAXID    4
        !           239:
        !           240: #define CTL_NET_RT_NAMES { \
        !           241:        { 0, 0 }, \
        !           242:        { "dump", CTLTYPE_STRUCT }, \
        !           243:        { "flags", CTLTYPE_STRUCT }, \
        !           244:        { "iflist", CTLTYPE_STRUCT }, \
        !           245: }
        !           246:
        !           247: /*
        !           248:  * Maximum queue length specifiable by listen(2).
        !           249:  */
        !           250:
        !           251: #define        SOMAXCONN       128
        !           252:
        !           253: /*
        !           254:  * Message header for recvmsg and sendmsg calls.
        !           255:  * Used value-result for recvmsg, value only for sendmsg.
        !           256:  */
        !           257: struct msghdr {
        !           258:        caddr_t msg_name;               /* optional address */
        !           259:        u_int   msg_namelen;            /* size of address */
        !           260:        struct  iovec *msg_iov;         /* scatter/gather array */
        !           261:        u_int   msg_iovlen;             /* # elements in msg_iov */
        !           262:        caddr_t msg_control;            /* ancillary data, see below */
        !           263:        u_int   msg_controllen;         /* ancillary data buffer len */
        !           264:        int     msg_flags;              /* flags on received message */
        !           265: };
        !           266:
        !           267: #define        MSG_OOB         0x1             /* process out-of-band data */
        !           268: #define        MSG_PEEK        0x2             /* peek at incoming message */
        !           269: #define        MSG_DONTROUTE   0x4             /* send without using routing tables */
        !           270: #define        MSG_EOR         0x8             /* data completes record */
        !           271: #define        MSG_TRUNC       0x10            /* data discarded before delivery */
        !           272: #define        MSG_CTRUNC      0x20            /* control data lost before delivery */
        !           273: #define        MSG_WAITALL     0x40            /* wait for full request or error */
        !           274: #define        MSG_DONTWAIT    0x80            /* this message should be nonblocking */
        !           275:
        !           276: /*
        !           277:  * Header for ancillary data objects in msg_control buffer.
        !           278:  * Used for additional information with/about a datagram
        !           279:  * not expressible by flags.  The format is a sequence
        !           280:  * of message elements headed by cmsghdr structures.
        !           281:  */
        !           282: struct cmsghdr {
        !           283:        u_int   cmsg_len;               /* data byte count, including hdr */
        !           284:        int     cmsg_level;             /* originating protocol */
        !           285:        int     cmsg_type;              /* protocol-specific type */
        !           286: /* followed by u_char  cmsg_data[]; */
        !           287: };
        !           288:
        !           289: /* given pointer to struct cmsghdr, return pointer to data */
        !           290: #define        CMSG_DATA(cmsg)         ((u_char *)((cmsg) + 1))
        !           291:
        !           292: /* given pointer to struct cmsghdr, return pointer to next cmsghdr */
        !           293: #define        CMSG_NXTHDR(mhdr, cmsg) \
        !           294:        (((caddr_t)(cmsg) + (cmsg)->cmsg_len + sizeof(struct cmsghdr) > \
        !           295:            (mhdr)->msg_control + (mhdr)->msg_controllen) ? \
        !           296:            (struct cmsghdr *)NULL : \
        !           297:            (struct cmsghdr *)((caddr_t)(cmsg) + ALIGN((cmsg)->cmsg_len)))
        !           298:
        !           299: #define        CMSG_FIRSTHDR(mhdr)     ((struct cmsghdr *)(mhdr)->msg_control)
        !           300:
        !           301: /* "Socket"-level control message types: */
        !           302: #define        SCM_RIGHTS      0x01            /* access rights (array of int) */
        !           303: #define        SCM_TIMESTAMP   0x02            /* timestamp (struct timeval) */
        !           304:
        !           305: /*
        !           306:  * 4.3 compat sockaddr, move to compat file later
        !           307:  */
        !           308: struct osockaddr {
        !           309:        u_short sa_family;              /* address family */
        !           310:        char    sa_data[14];            /* up to 14 bytes of direct address */
        !           311: };
        !           312:
        !           313: /*
        !           314:  * 4.3-compat message header (move to compat file later).
        !           315:  */
        !           316: struct omsghdr {
        !           317:        caddr_t msg_name;               /* optional address */
        !           318:        int     msg_namelen;            /* size of address */
        !           319:        struct  iovec *msg_iov;         /* scatter/gather array */
        !           320:        int     msg_iovlen;             /* # elements in msg_iov */
        !           321:        caddr_t msg_accrights;          /* access rights sent/received */
        !           322:        int     msg_accrightslen;
        !           323: };
        !           324:
        !           325: #ifndef        _KERNEL
        !           326:
        !           327: #include <sys/cdefs.h>
        !           328:
        !           329: __BEGIN_DECLS
        !           330: int    accept __P((int, struct sockaddr *, int *));
        !           331: int    bind __P((int, const struct sockaddr *, int));
        !           332: int    connect __P((int, const struct sockaddr *, int));
        !           333: int    getpeername __P((int, struct sockaddr *, int *));
        !           334: int    getsockname __P((int, struct sockaddr *, int *));
        !           335: int    getsockopt __P((int, int, int, void *, int *));
        !           336: int    listen __P((int, int));
        !           337: ssize_t        recv __P((int, void *, size_t, int));
        !           338: ssize_t        recvfrom __P((int, void *, size_t, int, struct sockaddr *, int *));
        !           339: ssize_t        recvmsg __P((int, struct msghdr *, int));
        !           340: ssize_t        send __P((int, const void *, size_t, int));
        !           341: ssize_t        sendto __P((int, const void *,
        !           342:            size_t, int, const struct sockaddr *, int));
        !           343: ssize_t        sendmsg __P((int, const struct msghdr *, int));
        !           344: int    setsockopt __P((int, int, int, const void *, int));
        !           345: int    shutdown __P((int, int));
        !           346: int    socket __P((int, int, int));
        !           347: int    socketpair __P((int, int, int, int *));
        !           348: __END_DECLS
        !           349: #else
        !           350: # if defined(COMPAT_43) || defined(COMPAT_SUNOS) || defined(COMPAT_LINUX) || \
        !           351:      defined(COMPAT_HPUX) || defined(COMPAT_FREEBSD)
        !           352: #  define COMPAT_OLDSOCK
        !           353: #  define MSG_COMPAT   0x8000
        !           354: # endif
        !           355: #endif /* !_KERNEL */
        !           356:
        !           357: #endif /* !_SYS_SOCKET_H_ */

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