| [39e6e65a] | 1 | /* |
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| 2 | * Copyright (c) 1982, 1985, 1986, 1988, 1993, 1994 |
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| 3 | * The Regents of the University of California. All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * 1. Redistributions of source code must retain the above copyright |
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| 9 | * notice, this list of conditions and the following disclaimer. |
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 11 | * notice, this list of conditions and the following disclaimer in the |
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| 12 | * documentation and/or other materials provided with the distribution. |
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| 13 | * 3. All advertising materials mentioning features or use of this software |
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| 14 | * must display the following acknowledgement: |
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| 15 | * This product includes software developed by the University of |
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| 16 | * California, Berkeley and its contributors. |
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| 17 | * 4. Neither the name of the University nor the names of its contributors |
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| 18 | * may be used to endorse or promote products derived from this software |
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| 19 | * without specific prior written permission. |
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| 20 | * |
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 31 | * SUCH DAMAGE. |
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| 32 | * |
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| 33 | * @(#)socket.h 8.4 (Berkeley) 2/21/94 |
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| 34 | * $Id$ |
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| 35 | */ |
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| 36 | |
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| 37 | #ifndef _SYS_SOCKET_H_ |
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| 38 | #define _SYS_SOCKET_H_ |
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| 39 | |
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| 40 | /* |
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| 41 | * Definitions related to sockets: types, address families, options. |
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| 42 | */ |
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| 43 | |
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| 44 | /* |
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| 45 | * Types |
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| 46 | */ |
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| 47 | #define SOCK_STREAM 1 /* stream socket */ |
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| 48 | #define SOCK_DGRAM 2 /* datagram socket */ |
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| 49 | #define SOCK_RAW 3 /* raw-protocol interface */ |
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| 50 | #define SOCK_RDM 4 /* reliably-delivered message */ |
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| 51 | #define SOCK_SEQPACKET 5 /* sequenced packet stream */ |
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| 52 | |
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| 53 | /* |
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| 54 | * Option flags per-socket. |
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| 55 | */ |
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| 56 | #define SO_DEBUG 0x0001 /* turn on debugging info recording */ |
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| 57 | #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */ |
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| 58 | #define SO_REUSEADDR 0x0004 /* allow local address reuse */ |
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| 59 | #define SO_KEEPALIVE 0x0008 /* keep connections alive */ |
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| 60 | #define SO_DONTROUTE 0x0010 /* just use interface addresses */ |
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| 61 | #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */ |
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| 62 | #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */ |
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| 63 | #define SO_LINGER 0x0080 /* linger on close if data present */ |
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| 64 | #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */ |
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| 65 | #define SO_REUSEPORT 0x0200 /* allow local address & port reuse */ |
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| 66 | #define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */ |
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| 67 | |
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| 68 | /* |
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| 69 | * Additional options, not kept in so_options. |
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| 70 | */ |
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| 71 | #define SO_SNDBUF 0x1001 /* send buffer size */ |
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| 72 | #define SO_RCVBUF 0x1002 /* receive buffer size */ |
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| 73 | #define SO_SNDLOWAT 0x1003 /* send low-water mark */ |
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| 74 | #define SO_RCVLOWAT 0x1004 /* receive low-water mark */ |
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| 75 | #define SO_SNDTIMEO 0x1005 /* send timeout */ |
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| 76 | #define SO_RCVTIMEO 0x1006 /* receive timeout */ |
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| 77 | #define SO_ERROR 0x1007 /* get error status and clear */ |
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| 78 | #define SO_TYPE 0x1008 /* get socket type */ |
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| 79 | #define SO_PRIVSTATE 0x1009 /* get/deny privileged state */ |
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| 80 | |
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| 81 | /* |
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| 82 | * Structure used for manipulating linger option. |
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| 83 | */ |
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| 84 | struct linger { |
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| 85 | int l_onoff; /* option on/off */ |
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| 86 | int l_linger; /* linger time */ |
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| 87 | }; |
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| 88 | |
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| 89 | /* |
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| 90 | * Level number for (get/set)sockopt() to apply to socket itself. |
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| 91 | */ |
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| 92 | #define SOL_SOCKET 0xffff /* options for socket level */ |
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| 93 | |
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| 94 | /* |
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| 95 | * Address families. |
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| 96 | */ |
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| 97 | #define AF_UNSPEC 0 /* unspecified */ |
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| 98 | #define AF_LOCAL 1 /* local to host (pipes, portals) */ |
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| 99 | #define AF_UNIX AF_LOCAL /* backward compatibility */ |
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| 100 | #define AF_INET 2 /* internetwork: UDP, TCP, etc. */ |
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| 101 | #define AF_IMPLINK 3 /* arpanet imp addresses */ |
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| 102 | #define AF_PUP 4 /* pup protocols: e.g. BSP */ |
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| 103 | #define AF_CHAOS 5 /* mit CHAOS protocols */ |
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| 104 | #define AF_NS 6 /* XEROX NS protocols */ |
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| 105 | #define AF_ISO 7 /* ISO protocols */ |
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| 106 | #define AF_OSI AF_ISO |
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| 107 | #define AF_ECMA 8 /* European computer manufacturers */ |
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| 108 | #define AF_DATAKIT 9 /* datakit protocols */ |
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| 109 | #define AF_CCITT 10 /* CCITT protocols, X.25 etc */ |
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| 110 | #define AF_SNA 11 /* IBM SNA */ |
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| 111 | #define AF_DECnet 12 /* DECnet */ |
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| 112 | #define AF_DLI 13 /* DEC Direct data link interface */ |
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| 113 | #define AF_LAT 14 /* LAT */ |
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| 114 | #define AF_HYLINK 15 /* NSC Hyperchannel */ |
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| 115 | #define AF_APPLETALK 16 /* Apple Talk */ |
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| 116 | #define AF_ROUTE 17 /* Internal Routing Protocol */ |
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| 117 | #define AF_LINK 18 /* Link layer interface */ |
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| 118 | #define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */ |
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| 119 | #define AF_COIP 20 /* connection-oriented IP, aka ST II */ |
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| 120 | #define AF_CNT 21 /* Computer Network Technology */ |
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| 121 | #define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */ |
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| 122 | #define AF_IPX 23 /* Novell Internet Protocol */ |
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| 123 | #define AF_SIP 24 /* Simple Internet Protocol */ |
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| 124 | #define pseudo_AF_PIP 25 /* Help Identify PIP packets */ |
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| 125 | #define AF_ISDN 26 /* Integrated Services Digital Network*/ |
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| 126 | #define AF_E164 AF_ISDN /* CCITT E.164 recommendation */ |
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| 127 | #define pseudo_AF_KEY 27 /* Internal key-management function */ |
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| 128 | #define AF_INET6 28 /* IPv6 */ |
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| 129 | |
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| 130 | #define AF_MAX 29 |
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| 131 | |
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| 132 | /* |
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| 133 | * Structure used by kernel to store most |
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| 134 | * addresses. |
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| 135 | */ |
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| 136 | struct sockaddr { |
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| 137 | u_char sa_len; /* total length */ |
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| 138 | u_char sa_family; /* address family */ |
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| 139 | char sa_data[14]; /* actually longer; address value */ |
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| 140 | }; |
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| 141 | |
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| 142 | /* |
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| 143 | * Structure used by kernel to pass protocol |
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| 144 | * information in raw sockets. |
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| 145 | */ |
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| 146 | struct sockproto { |
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| 147 | u_short sp_family; /* address family */ |
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| 148 | u_short sp_protocol; /* protocol */ |
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| 149 | }; |
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| 150 | |
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| 151 | /* |
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| 152 | * Protocol families, same as address families for now. |
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| 153 | */ |
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| 154 | #define PF_UNSPEC AF_UNSPEC |
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| 155 | #define PF_LOCAL AF_LOCAL |
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| 156 | #define PF_UNIX PF_LOCAL /* backward compatibility */ |
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| 157 | #define PF_INET AF_INET |
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| 158 | #define PF_IMPLINK AF_IMPLINK |
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| 159 | #define PF_PUP AF_PUP |
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| 160 | #define PF_CHAOS AF_CHAOS |
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| 161 | #define PF_NS AF_NS |
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| 162 | #define PF_ISO AF_ISO |
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| 163 | #define PF_OSI AF_ISO |
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| 164 | #define PF_ECMA AF_ECMA |
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| 165 | #define PF_DATAKIT AF_DATAKIT |
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| 166 | #define PF_CCITT AF_CCITT |
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| 167 | #define PF_SNA AF_SNA |
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| 168 | #define PF_DECnet AF_DECnet |
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| 169 | #define PF_DLI AF_DLI |
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| 170 | #define PF_LAT AF_LAT |
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| 171 | #define PF_HYLINK AF_HYLINK |
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| 172 | #define PF_APPLETALK AF_APPLETALK |
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| 173 | #define PF_ROUTE AF_ROUTE |
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| 174 | #define PF_LINK AF_LINK |
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| 175 | #define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */ |
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| 176 | #define PF_COIP AF_COIP |
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| 177 | #define PF_CNT AF_CNT |
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| 178 | #define PF_SIP AF_SIP |
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| 179 | #define PF_IPX AF_IPX /* same format as AF_NS */ |
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| 180 | #define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */ |
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| 181 | #define PF_PIP pseudo_AF_PIP |
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| 182 | #define PF_ISDN AF_ISDN |
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| 183 | #define PF_KEY pseudo_AF_KEY |
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| 184 | #define PF_INET6 AF_INET6 |
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| 185 | |
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| 186 | #define PF_MAX AF_MAX |
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| 187 | |
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| 188 | /* |
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| 189 | * Definitions for network related sysctl, CTL_NET. |
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| 190 | * |
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| 191 | * Second level is protocol family. |
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| 192 | * Third level is protocol number. |
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| 193 | * |
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| 194 | * Further levels are defined by the individual families below. |
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| 195 | */ |
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| 196 | #define NET_MAXID AF_MAX |
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| 197 | |
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| 198 | #define CTL_NET_NAMES { \ |
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| 199 | { 0, 0 }, \ |
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| 200 | { "unix", CTLTYPE_NODE }, \ |
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| 201 | { "inet", CTLTYPE_NODE }, \ |
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| 202 | { "implink", CTLTYPE_NODE }, \ |
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| 203 | { "pup", CTLTYPE_NODE }, \ |
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| 204 | { "chaos", CTLTYPE_NODE }, \ |
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| 205 | { "xerox_ns", CTLTYPE_NODE }, \ |
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| 206 | { "iso", CTLTYPE_NODE }, \ |
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| 207 | { "emca", CTLTYPE_NODE }, \ |
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| 208 | { "datakit", CTLTYPE_NODE }, \ |
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| 209 | { "ccitt", CTLTYPE_NODE }, \ |
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| 210 | { "ibm_sna", CTLTYPE_NODE }, \ |
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| 211 | { "decnet", CTLTYPE_NODE }, \ |
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| 212 | { "dec_dli", CTLTYPE_NODE }, \ |
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| 213 | { "lat", CTLTYPE_NODE }, \ |
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| 214 | { "hylink", CTLTYPE_NODE }, \ |
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| 215 | { "appletalk", CTLTYPE_NODE }, \ |
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| 216 | { "route", CTLTYPE_NODE }, \ |
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| 217 | { "link_layer", CTLTYPE_NODE }, \ |
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| 218 | { "xtp", CTLTYPE_NODE }, \ |
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| 219 | { "coip", CTLTYPE_NODE }, \ |
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| 220 | { "cnt", CTLTYPE_NODE }, \ |
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| 221 | { "rtip", CTLTYPE_NODE }, \ |
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| 222 | { "ipx", CTLTYPE_NODE }, \ |
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| 223 | { "sip", CTLTYPE_NODE }, \ |
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| 224 | { "pip", CTLTYPE_NODE }, \ |
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| 225 | { "isdn", CTLTYPE_NODE }, \ |
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| 226 | { "key", CTLTYPE_NODE }, \ |
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| 227 | } |
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| 228 | |
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| 229 | /* |
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| 230 | * PF_ROUTE - Routing table |
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| 231 | * |
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| 232 | * Three additional levels are defined: |
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| 233 | * Fourth: address family, 0 is wildcard |
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| 234 | * Fifth: type of info, defined below |
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| 235 | * Sixth: flag(s) to mask with for NET_RT_FLAGS |
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| 236 | */ |
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| 237 | #define NET_RT_DUMP 1 /* dump; may limit to a.f. */ |
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| 238 | #define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */ |
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| 239 | #define NET_RT_IFLIST 3 /* survey interface list */ |
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| 240 | #define NET_RT_MAXID 4 |
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| 241 | |
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| 242 | #define CTL_NET_RT_NAMES { \ |
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| 243 | { 0, 0 }, \ |
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| 244 | { "dump", CTLTYPE_STRUCT }, \ |
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| 245 | { "flags", CTLTYPE_STRUCT }, \ |
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| 246 | { "iflist", CTLTYPE_STRUCT }, \ |
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| 247 | } |
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| 248 | |
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| 249 | /* |
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| 250 | * Maximum queue length specifiable by listen. |
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| 251 | */ |
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| 252 | #define SOMAXCONN 128 |
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| 253 | |
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| 254 | /* |
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| 255 | * Message header for recvmsg and sendmsg calls. |
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| 256 | * Used value-result for recvmsg, value only for sendmsg. |
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| 257 | */ |
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| 258 | struct msghdr { |
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| 259 | caddr_t msg_name; /* optional address */ |
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| 260 | u_int msg_namelen; /* size of address */ |
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| 261 | struct iovec *msg_iov; /* scatter/gather array */ |
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| 262 | u_int msg_iovlen; /* # elements in msg_iov */ |
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| 263 | caddr_t msg_control; /* ancillary data, see below */ |
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| 264 | u_int msg_controllen; /* ancillary data buffer len */ |
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| 265 | int msg_flags; /* flags on received message */ |
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| 266 | }; |
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| 267 | |
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| 268 | #define MSG_OOB 0x1 /* process out-of-band data */ |
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| 269 | #define MSG_PEEK 0x2 /* peek at incoming message */ |
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| 270 | #define MSG_DONTROUTE 0x4 /* send without using routing tables */ |
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| 271 | #define MSG_EOR 0x8 /* data completes record */ |
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| 272 | #define MSG_TRUNC 0x10 /* data discarded before delivery */ |
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| 273 | #define MSG_CTRUNC 0x20 /* control data lost before delivery */ |
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| 274 | #define MSG_WAITALL 0x40 /* wait for full request or error */ |
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| 275 | #define MSG_DONTWAIT 0x80 /* this message should be nonblocking */ |
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| 276 | #define MSG_EOF 0x100 /* data completes connection */ |
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| 277 | #define MSG_COMPAT 0x8000 /* used in sendit() */ |
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| 278 | |
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| 279 | /* |
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| 280 | * Header for ancillary data objects in msg_control buffer. |
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| 281 | * Used for additional information with/about a datagram |
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| 282 | * not expressible by flags. The format is a sequence |
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| 283 | * of message elements headed by cmsghdr structures. |
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| 284 | */ |
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| 285 | struct cmsghdr { |
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| 286 | u_int cmsg_len; /* data byte count, including hdr */ |
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| 287 | int cmsg_level; /* originating protocol */ |
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| 288 | int cmsg_type; /* protocol-specific type */ |
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| 289 | /* followed by u_char cmsg_data[]; */ |
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| 290 | }; |
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| 291 | |
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| 292 | /* given pointer to struct cmsghdr, return pointer to data */ |
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| 293 | #define CMSG_DATA(cmsg) ((u_char *)((cmsg) + 1)) |
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| 294 | |
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| 295 | /* given pointer to struct cmsghdr, return pointer to next cmsghdr */ |
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| 296 | #define CMSG_NXTHDR(mhdr, cmsg) \ |
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| 297 | (((caddr_t)(cmsg) + (cmsg)->cmsg_len + sizeof(struct cmsghdr) > \ |
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| 298 | (mhdr)->msg_control + (mhdr)->msg_controllen) ? \ |
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| 299 | (struct cmsghdr *)NULL : \ |
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| 300 | (struct cmsghdr *)((caddr_t)(cmsg) + ALIGN((cmsg)->cmsg_len))) |
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| 301 | |
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| 302 | #define CMSG_FIRSTHDR(mhdr) ((struct cmsghdr *)(mhdr)->msg_control) |
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| 303 | |
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| 304 | /* "Socket"-level control message types: */ |
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| 305 | #define SCM_RIGHTS 0x01 /* access rights (array of int) */ |
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| 306 | #define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */ |
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| 307 | |
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| 308 | /* |
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| 309 | * 4.3 compat sockaddr, move to compat file later |
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| 310 | */ |
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| 311 | struct osockaddr { |
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| 312 | u_short sa_family; /* address family */ |
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| 313 | char sa_data[14]; /* up to 14 bytes of direct address */ |
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| 314 | }; |
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| 315 | |
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| 316 | /* |
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| 317 | * 4.3-compat message header (move to compat file later). |
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| 318 | */ |
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| 319 | struct omsghdr { |
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| 320 | caddr_t msg_name; /* optional address */ |
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| 321 | int msg_namelen; /* size of address */ |
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| 322 | struct iovec *msg_iov; /* scatter/gather array */ |
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| 323 | int msg_iovlen; /* # elements in msg_iov */ |
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| 324 | caddr_t msg_accrights; /* access rights sent/received */ |
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| 325 | int msg_accrightslen; |
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| 326 | }; |
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| 327 | |
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| 328 | #ifndef KERNEL |
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| 329 | |
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| 330 | #include <sys/cdefs.h> |
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| 331 | |
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| 332 | __BEGIN_DECLS |
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| 333 | int accept __P((int, struct sockaddr *, int *)); |
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| 334 | int bind __P((int, const struct sockaddr *, int)); |
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| 335 | int connect __P((int, const struct sockaddr *, int)); |
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| 336 | int getpeername __P((int, struct sockaddr *, int *)); |
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| 337 | int getsockname __P((int, struct sockaddr *, int *)); |
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| 338 | int getsockopt __P((int, int, int, void *, int *)); |
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| 339 | int listen __P((int, int)); |
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| 340 | ssize_t recv __P((int, void *, size_t, int)); |
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| 341 | ssize_t recvfrom __P((int, void *, size_t, int, struct sockaddr *, int *)); |
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| 342 | ssize_t recvmsg __P((int, struct msghdr *, int)); |
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| 343 | ssize_t send __P((int, const void *, size_t, int)); |
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| 344 | ssize_t sendto __P((int, const void *, |
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| 345 | size_t, int, const struct sockaddr *, int)); |
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| 346 | ssize_t sendmsg __P((int, const struct msghdr *, int)); |
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| 347 | int setsockopt __P((int, int, int, const void *, int)); |
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| 348 | int shutdown __P((int, int)); |
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| 349 | int socket __P((int, int, int)); |
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| 350 | int socketpair __P((int, int, int, int *)); |
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| 351 | __END_DECLS |
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| 352 | |
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| 353 | #else /* KERNEL */ |
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| 354 | void pfctlinput __P((int, struct sockaddr *)); |
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| 355 | #endif /* !KERNEL */ |
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| 356 | #endif /* !_SYS_SOCKET_H_ */ |
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