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 | #include <sys/cdefs.h> |
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41 | |
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42 | /* |
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43 | * Definitions related to sockets: types, address families, options. |
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44 | */ |
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45 | |
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46 | /* |
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47 | * Types |
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48 | */ |
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49 | #define SOCK_STREAM 1 /* stream socket */ |
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50 | #define SOCK_DGRAM 2 /* datagram socket */ |
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51 | #define SOCK_RAW 3 /* raw-protocol interface */ |
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52 | #define SOCK_RDM 4 /* reliably-delivered message */ |
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53 | #define SOCK_SEQPACKET 5 /* sequenced packet stream */ |
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54 | |
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55 | /* |
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56 | * Option flags per-socket. |
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57 | */ |
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58 | #define SO_DEBUG 0x0001 /* turn on debugging info recording */ |
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59 | #define SO_ACCEPTCONN 0x0002 /* socket has had listen() */ |
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60 | #define SO_REUSEADDR 0x0004 /* allow local address reuse */ |
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61 | #define SO_KEEPALIVE 0x0008 /* keep connections alive */ |
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62 | #define SO_DONTROUTE 0x0010 /* just use interface addresses */ |
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63 | #define SO_BROADCAST 0x0020 /* permit sending of broadcast msgs */ |
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64 | #define SO_USELOOPBACK 0x0040 /* bypass hardware when possible */ |
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65 | #define SO_LINGER 0x0080 /* linger on close if data present */ |
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66 | #define SO_OOBINLINE 0x0100 /* leave received OOB data in line */ |
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67 | #define SO_REUSEPORT 0x0200 /* allow local address & port reuse */ |
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68 | #define SO_TIMESTAMP 0x0400 /* timestamp received dgram traffic */ |
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69 | |
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70 | /* |
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71 | * Additional options, not kept in so_options. |
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72 | */ |
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73 | #define SO_SNDBUF 0x1001 /* send buffer size */ |
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74 | #define SO_RCVBUF 0x1002 /* receive buffer size */ |
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75 | #define SO_SNDLOWAT 0x1003 /* send low-water mark */ |
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76 | #define SO_RCVLOWAT 0x1004 /* receive low-water mark */ |
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77 | #define SO_SNDTIMEO 0x1005 /* send timeout */ |
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78 | #define SO_RCVTIMEO 0x1006 /* receive timeout */ |
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79 | #define SO_ERROR 0x1007 /* get error status and clear */ |
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80 | #define SO_TYPE 0x1008 /* get socket type */ |
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81 | #define SO_PRIVSTATE 0x1009 /* get/deny privileged state */ |
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82 | |
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83 | /* |
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84 | * RTEMS addition: get and set wakeup functions. |
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85 | */ |
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86 | #define SO_SNDWAKEUP 0x1020 /* wakeup when ready to send */ |
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87 | #define SO_RCVWAKEUP 0x1021 /* wakeup when ready to receive */ |
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88 | |
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89 | /* |
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90 | * Structure used for manipulating linger option. |
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91 | */ |
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92 | struct linger { |
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93 | int l_onoff; /* option on/off */ |
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94 | int l_linger; /* linger time */ |
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95 | }; |
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96 | |
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97 | /* |
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98 | * RTEMS addition: structure used to get and set wakeup function. |
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99 | */ |
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100 | struct socket; |
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101 | struct sockwakeup { |
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102 | void (*sw_pfn) __P((struct socket *, caddr_t)); |
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103 | caddr_t sw_arg; |
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104 | }; |
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105 | |
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106 | /* |
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107 | * Level number for (get/set)sockopt() to apply to socket itself. |
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108 | */ |
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109 | #define SOL_SOCKET 0xffff /* options for socket level */ |
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110 | |
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111 | /* |
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112 | * Address families. |
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113 | */ |
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114 | #define AF_UNSPEC 0 /* unspecified */ |
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115 | #define AF_LOCAL 1 /* local to host (pipes, portals) */ |
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116 | #define AF_UNIX AF_LOCAL /* backward compatibility */ |
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117 | #define AF_INET 2 /* internetwork: UDP, TCP, etc. */ |
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118 | #define AF_IMPLINK 3 /* arpanet imp addresses */ |
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119 | #define AF_PUP 4 /* pup protocols: e.g. BSP */ |
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120 | #define AF_CHAOS 5 /* mit CHAOS protocols */ |
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121 | #define AF_NS 6 /* XEROX NS protocols */ |
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122 | #define AF_ISO 7 /* ISO protocols */ |
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123 | #define AF_OSI AF_ISO |
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124 | #define AF_ECMA 8 /* European computer manufacturers */ |
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125 | #define AF_DATAKIT 9 /* datakit protocols */ |
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126 | #define AF_CCITT 10 /* CCITT protocols, X.25 etc */ |
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127 | #define AF_SNA 11 /* IBM SNA */ |
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128 | #define AF_DECnet 12 /* DECnet */ |
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129 | #define AF_DLI 13 /* DEC Direct data link interface */ |
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130 | #define AF_LAT 14 /* LAT */ |
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131 | #define AF_HYLINK 15 /* NSC Hyperchannel */ |
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132 | #define AF_APPLETALK 16 /* Apple Talk */ |
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133 | #define AF_ROUTE 17 /* Internal Routing Protocol */ |
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134 | #define AF_LINK 18 /* Link layer interface */ |
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135 | #define pseudo_AF_XTP 19 /* eXpress Transfer Protocol (no AF) */ |
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136 | #define AF_COIP 20 /* connection-oriented IP, aka ST II */ |
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137 | #define AF_CNT 21 /* Computer Network Technology */ |
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138 | #define pseudo_AF_RTIP 22 /* Help Identify RTIP packets */ |
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139 | #define AF_IPX 23 /* Novell Internet Protocol */ |
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140 | #define AF_SIP 24 /* Simple Internet Protocol */ |
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141 | #define pseudo_AF_PIP 25 /* Help Identify PIP packets */ |
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142 | #define AF_ISDN 26 /* Integrated Services Digital Network*/ |
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143 | #define AF_E164 AF_ISDN /* CCITT E.164 recommendation */ |
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144 | #define pseudo_AF_KEY 27 /* Internal key-management function */ |
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145 | #define AF_INET6 28 /* IPv6 */ |
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146 | |
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147 | #define AF_MAX 29 |
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148 | |
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149 | /* |
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150 | * Structure used by kernel to store most |
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151 | * addresses. |
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152 | */ |
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153 | struct sockaddr { |
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154 | u_char sa_len; /* total length */ |
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155 | u_char sa_family; /* address family */ |
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156 | char sa_data[14]; /* actually longer; address value */ |
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157 | }; |
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158 | |
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159 | /* |
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160 | * Structure used by kernel to pass protocol |
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161 | * information in raw sockets. |
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162 | */ |
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163 | struct sockproto { |
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164 | u_short sp_family; /* address family */ |
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165 | u_short sp_protocol; /* protocol */ |
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166 | }; |
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167 | |
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168 | /* |
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169 | * Protocol families, same as address families for now. |
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170 | */ |
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171 | #define PF_UNSPEC AF_UNSPEC |
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172 | #define PF_LOCAL AF_LOCAL |
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173 | #define PF_UNIX PF_LOCAL /* backward compatibility */ |
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174 | #define PF_INET AF_INET |
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175 | #define PF_IMPLINK AF_IMPLINK |
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176 | #define PF_PUP AF_PUP |
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177 | #define PF_CHAOS AF_CHAOS |
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178 | #define PF_NS AF_NS |
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179 | #define PF_ISO AF_ISO |
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180 | #define PF_OSI AF_ISO |
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181 | #define PF_ECMA AF_ECMA |
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182 | #define PF_DATAKIT AF_DATAKIT |
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183 | #define PF_CCITT AF_CCITT |
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184 | #define PF_SNA AF_SNA |
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185 | #define PF_DECnet AF_DECnet |
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186 | #define PF_DLI AF_DLI |
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187 | #define PF_LAT AF_LAT |
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188 | #define PF_HYLINK AF_HYLINK |
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189 | #define PF_APPLETALK AF_APPLETALK |
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190 | #define PF_ROUTE AF_ROUTE |
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191 | #define PF_LINK AF_LINK |
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192 | #define PF_XTP pseudo_AF_XTP /* really just proto family, no AF */ |
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193 | #define PF_COIP AF_COIP |
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194 | #define PF_CNT AF_CNT |
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195 | #define PF_SIP AF_SIP |
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196 | #define PF_IPX AF_IPX /* same format as AF_NS */ |
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197 | #define PF_RTIP pseudo_AF_RTIP /* same format as AF_INET */ |
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198 | #define PF_PIP pseudo_AF_PIP |
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199 | #define PF_ISDN AF_ISDN |
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200 | #define PF_KEY pseudo_AF_KEY |
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201 | #define PF_INET6 AF_INET6 |
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202 | |
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203 | #define PF_MAX AF_MAX |
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204 | |
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205 | /* |
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206 | * Definitions for network related sysctl, CTL_NET. |
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207 | * |
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208 | * Second level is protocol family. |
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209 | * Third level is protocol number. |
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210 | * |
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211 | * Further levels are defined by the individual families below. |
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212 | */ |
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213 | #define NET_MAXID AF_MAX |
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214 | |
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215 | #define CTL_NET_NAMES { \ |
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216 | { 0, 0 }, \ |
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217 | { "unix", CTLTYPE_NODE }, \ |
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218 | { "inet", CTLTYPE_NODE }, \ |
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219 | { "implink", CTLTYPE_NODE }, \ |
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220 | { "pup", CTLTYPE_NODE }, \ |
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221 | { "chaos", CTLTYPE_NODE }, \ |
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222 | { "xerox_ns", CTLTYPE_NODE }, \ |
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223 | { "iso", CTLTYPE_NODE }, \ |
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224 | { "emca", CTLTYPE_NODE }, \ |
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225 | { "datakit", CTLTYPE_NODE }, \ |
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226 | { "ccitt", CTLTYPE_NODE }, \ |
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227 | { "ibm_sna", CTLTYPE_NODE }, \ |
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228 | { "decnet", CTLTYPE_NODE }, \ |
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229 | { "dec_dli", CTLTYPE_NODE }, \ |
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230 | { "lat", CTLTYPE_NODE }, \ |
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231 | { "hylink", CTLTYPE_NODE }, \ |
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232 | { "appletalk", CTLTYPE_NODE }, \ |
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233 | { "route", CTLTYPE_NODE }, \ |
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234 | { "link_layer", CTLTYPE_NODE }, \ |
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235 | { "xtp", CTLTYPE_NODE }, \ |
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236 | { "coip", CTLTYPE_NODE }, \ |
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237 | { "cnt", CTLTYPE_NODE }, \ |
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238 | { "rtip", CTLTYPE_NODE }, \ |
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239 | { "ipx", CTLTYPE_NODE }, \ |
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240 | { "sip", CTLTYPE_NODE }, \ |
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241 | { "pip", CTLTYPE_NODE }, \ |
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242 | { "isdn", CTLTYPE_NODE }, \ |
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243 | { "key", CTLTYPE_NODE }, \ |
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244 | } |
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245 | |
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246 | /* |
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247 | * PF_ROUTE - Routing table |
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248 | * |
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249 | * Three additional levels are defined: |
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250 | * Fourth: address family, 0 is wildcard |
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251 | * Fifth: type of info, defined below |
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252 | * Sixth: flag(s) to mask with for NET_RT_FLAGS |
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253 | */ |
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254 | #define NET_RT_DUMP 1 /* dump; may limit to a.f. */ |
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255 | #define NET_RT_FLAGS 2 /* by flags, e.g. RESOLVING */ |
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256 | #define NET_RT_IFLIST 3 /* survey interface list */ |
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257 | #define NET_RT_MAXID 4 |
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258 | |
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259 | #define CTL_NET_RT_NAMES { \ |
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260 | { 0, 0 }, \ |
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261 | { "dump", CTLTYPE_STRUCT }, \ |
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262 | { "flags", CTLTYPE_STRUCT }, \ |
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263 | { "iflist", CTLTYPE_STRUCT }, \ |
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264 | } |
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265 | |
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266 | /* |
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267 | * Maximum queue length specifiable by listen. |
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268 | */ |
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269 | #define SOMAXCONN 128 |
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270 | |
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271 | /* |
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272 | * Message header for recvmsg and sendmsg calls. |
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273 | * Used value-result for recvmsg, value only for sendmsg. |
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274 | */ |
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275 | struct msghdr { |
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276 | caddr_t msg_name; /* optional address */ |
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277 | u_int msg_namelen; /* size of address */ |
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278 | struct iovec *msg_iov; /* scatter/gather array */ |
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279 | u_int msg_iovlen; /* # elements in msg_iov */ |
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280 | caddr_t msg_control; /* ancillary data, see below */ |
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281 | u_int msg_controllen; /* ancillary data buffer len */ |
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282 | int msg_flags; /* flags on received message */ |
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283 | }; |
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284 | |
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285 | #define MSG_OOB 0x1 /* process out-of-band data */ |
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286 | #define MSG_PEEK 0x2 /* peek at incoming message */ |
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287 | #define MSG_DONTROUTE 0x4 /* send without using routing tables */ |
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288 | #define MSG_EOR 0x8 /* data completes record */ |
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289 | #define MSG_TRUNC 0x10 /* data discarded before delivery */ |
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290 | #define MSG_CTRUNC 0x20 /* control data lost before delivery */ |
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291 | #define MSG_WAITALL 0x40 /* wait for full request or error */ |
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292 | #define MSG_DONTWAIT 0x80 /* this message should be nonblocking */ |
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293 | #define MSG_EOF 0x100 /* data completes connection */ |
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294 | #define MSG_COMPAT 0x8000 /* used in sendit() */ |
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295 | |
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296 | /* |
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297 | * Header for ancillary data objects in msg_control buffer. |
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298 | * Used for additional information with/about a datagram |
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299 | * not expressible by flags. The format is a sequence |
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300 | * of message elements headed by cmsghdr structures. |
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301 | */ |
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302 | struct cmsghdr { |
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303 | u_int cmsg_len; /* data byte count, including hdr */ |
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304 | int cmsg_level; /* originating protocol */ |
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305 | int cmsg_type; /* protocol-specific type */ |
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306 | /* followed by u_char cmsg_data[]; */ |
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307 | }; |
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308 | |
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309 | /* given pointer to struct cmsghdr, return pointer to data */ |
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310 | #define CMSG_DATA(cmsg) ((u_char *)((cmsg) + 1)) |
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311 | |
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312 | /* given pointer to struct cmsghdr, return pointer to next cmsghdr */ |
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313 | #define CMSG_NXTHDR(mhdr, cmsg) \ |
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314 | (((caddr_t)(cmsg) + (cmsg)->cmsg_len + sizeof(struct cmsghdr) > \ |
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315 | (mhdr)->msg_control + (mhdr)->msg_controllen) ? \ |
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316 | (struct cmsghdr *)NULL : \ |
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317 | (struct cmsghdr *)((caddr_t)(cmsg) + ALIGN((cmsg)->cmsg_len))) |
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318 | |
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319 | #define CMSG_FIRSTHDR(mhdr) ((struct cmsghdr *)(mhdr)->msg_control) |
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320 | |
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321 | /* "Socket"-level control message types: */ |
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322 | #define SCM_RIGHTS 0x01 /* access rights (array of int) */ |
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323 | #define SCM_TIMESTAMP 0x02 /* timestamp (struct timeval) */ |
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324 | |
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325 | /* |
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326 | * 4.3 compat sockaddr, move to compat file later |
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327 | */ |
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328 | struct osockaddr { |
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329 | u_short sa_family; /* address family */ |
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330 | char sa_data[14]; /* up to 14 bytes of direct address */ |
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331 | }; |
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332 | |
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333 | /* |
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334 | * 4.3-compat message header (move to compat file later). |
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335 | */ |
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336 | struct omsghdr { |
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337 | caddr_t msg_name; /* optional address */ |
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338 | int msg_namelen; /* size of address */ |
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339 | struct iovec *msg_iov; /* scatter/gather array */ |
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340 | int msg_iovlen; /* # elements in msg_iov */ |
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341 | caddr_t msg_accrights; /* access rights sent/received */ |
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342 | int msg_accrightslen; |
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343 | }; |
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344 | |
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345 | #ifndef KERNEL |
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346 | |
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347 | __BEGIN_DECLS |
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348 | int accept __P((int, struct sockaddr *, int *)); |
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349 | int bind __P((int, const struct sockaddr *, int)); |
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350 | int connect __P((int, const struct sockaddr *, int)); |
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351 | int getpeername __P((int, struct sockaddr *, int *)); |
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352 | int getsockname __P((int, struct sockaddr *, int *)); |
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353 | int getsockopt __P((int, int, int, void *, int *)); |
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354 | int listen __P((int, int)); |
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355 | ssize_t recv __P((int, void *, size_t, int)); |
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356 | ssize_t recvfrom __P((int, void *, size_t, int, struct sockaddr *, int *)); |
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357 | ssize_t recvmsg __P((int, struct msghdr *, int)); |
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358 | ssize_t send __P((int, const void *, size_t, int)); |
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359 | ssize_t sendto __P((int, const void *, |
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360 | size_t, int, const struct sockaddr *, int)); |
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361 | ssize_t sendmsg __P((int, const struct msghdr *, int)); |
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362 | int setsockopt __P((int, int, int, const void *, int)); |
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363 | int shutdown __P((int, int)); |
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364 | int socket __P((int, int, int)); |
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365 | int socketpair __P((int, int, int, int *)); |
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366 | __END_DECLS |
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367 | |
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368 | #else /* KERNEL */ |
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369 | void pfctlinput __P((int, struct sockaddr *)); |
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370 | #endif /* !KERNEL */ |
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371 | #endif /* !_SYS_SOCKET_H_ */ |
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