| 1 | /* System-specific socket constants and types. Linux/MIPS version. |
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| 2 | Copyright (C) 1991,92,1994-1999,2000,2001 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, write to the Free |
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| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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| 18 | 02111-1307 USA. */ |
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| 19 | |
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| 20 | #ifndef __BITS_SOCKET_H |
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| 21 | #define __BITS_SOCKET_H |
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| 22 | |
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| 23 | #if !defined _SYS_SOCKET_H && !defined _NETINET_IN_H |
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| 24 | # error "Never include <bits/socket.h> directly; use <sys/socket.h> instead." |
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| 25 | #endif |
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| 26 | |
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| 27 | #define __need_size_t |
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| 28 | #define __need_NULL |
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| 29 | #include <stddef.h> |
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| 30 | |
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| 31 | #include <limits.h> |
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| 32 | #include <sys/types.h> |
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| 33 | |
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| 34 | /* Type for length arguments in socket calls. */ |
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| 35 | #ifndef __socklen_t_defined |
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| 36 | typedef __socklen_t socklen_t; |
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| 37 | # define __socklen_t_defined |
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| 38 | #endif |
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| 39 | |
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| 40 | /* Types of sockets. */ |
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| 41 | enum __socket_type |
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| 42 | { |
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| 43 | SOCK_DGRAM = 1, /* Connectionless, unreliable datagrams |
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| 44 | of fixed maximum length. */ |
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| 45 | #define SOCK_DGRAM SOCK_DGRAM |
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| 46 | SOCK_STREAM = 2, /* Sequenced, reliable, connection-based |
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| 47 | byte streams. */ |
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| 48 | #define SOCK_STREAM SOCK_STREAM |
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| 49 | SOCK_RAW = 3, /* Raw protocol interface. */ |
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| 50 | #define SOCK_RAW SOCK_RAW |
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| 51 | SOCK_RDM = 4, /* Reliably-delivered messages. */ |
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| 52 | #define SOCK_RDM SOCK_RDM |
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| 53 | SOCK_SEQPACKET = 5, /* Sequenced, reliable, connection-based, |
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| 54 | datagrams of fixed maximum length. */ |
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| 55 | #define SOCK_SEQPACKET SOCK_SEQPACKET |
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| 56 | SOCK_PACKET = 10 /* Linux specific way of getting packets |
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| 57 | at the dev level. For writing rarp and |
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| 58 | other similar things on the user level. */ |
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| 59 | #define SOCK_PACKET SOCK_PACKET |
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| 60 | }; |
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| 61 | |
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| 62 | /* Protocol families. */ |
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| 63 | #define PF_UNSPEC 0 /* Unspecified. */ |
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| 64 | #define PF_LOCAL 1 /* Local to host (pipes and file-domain). */ |
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| 65 | #define PF_UNIX PF_LOCAL /* Old BSD name for PF_LOCAL. */ |
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| 66 | #define PF_FILE PF_LOCAL /* Another non-standard name for PF_LOCAL. */ |
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| 67 | #define PF_INET 2 /* IP protocol family. */ |
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| 68 | #define PF_AX25 3 /* Amateur Radio AX.25. */ |
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| 69 | #define PF_IPX 4 /* Novell Internet Protocol. */ |
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| 70 | #define PF_APPLETALK 5 /* Appletalk DDP. */ |
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| 71 | #define PF_NETROM 6 /* Amateur radio NetROM. */ |
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| 72 | #define PF_BRIDGE 7 /* Multiprotocol bridge. */ |
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| 73 | #define PF_ATMPVC 8 /* ATM PVCs. */ |
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| 74 | #define PF_X25 9 /* Reserved for X.25 project. */ |
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| 75 | #define PF_INET6 10 /* IP version 6. */ |
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| 76 | #define PF_ROSE 11 /* Amateur Radio X.25 PLP. */ |
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| 77 | #define PF_DECnet 12 /* Reserved for DECnet project. */ |
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| 78 | #define PF_NETBEUI 13 /* Reserved for 802.2LLC project. */ |
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| 79 | #define PF_SECURITY 14 /* Security callback pseudo AF. */ |
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| 80 | #define PF_KEY 15 /* PF_KEY key management API. */ |
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| 81 | #define PF_NETLINK 16 |
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| 82 | #define PF_ROUTE PF_NETLINK /* Alias to emulate 4.4BSD. */ |
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| 83 | #define PF_PACKET 17 /* Packet family. */ |
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| 84 | #define PF_ASH 18 /* Ash. */ |
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| 85 | #define PF_ECONET 19 /* Acorn Econet. */ |
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| 86 | #define PF_ATMSVC 20 /* ATM SVCs. */ |
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| 87 | #define PF_SNA 22 /* Linux SNA Project */ |
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| 88 | #define PF_IRDA 23 /* IRDA sockets. */ |
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| 89 | #define PF_PPPOX 24 /* PPPoX sockets. */ |
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| 90 | #define PF_WANPIPE 25 /* Wanpipe API sockets. */ |
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| 91 | #define PF_BLUETOOTH 31 /* Bluetooth sockets. */ |
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| 92 | #define PF_MAX 32 /* For now.. */ |
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| 93 | |
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| 94 | /* Address families. */ |
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| 95 | #define AF_UNSPEC PF_UNSPEC |
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| 96 | #define AF_LOCAL PF_LOCAL |
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| 97 | #define AF_UNIX PF_UNIX |
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| 98 | #define AF_FILE PF_FILE |
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| 99 | #define AF_INET PF_INET |
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| 100 | #define AF_AX25 PF_AX25 |
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| 101 | #define AF_IPX PF_IPX |
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| 102 | #define AF_APPLETALK PF_APPLETALK |
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| 103 | #define AF_NETROM PF_NETROM |
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| 104 | #define AF_BRIDGE PF_BRIDGE |
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| 105 | #define AF_ATMPVC PF_ATMPVC |
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| 106 | #define AF_X25 PF_X25 |
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| 107 | #define AF_INET6 PF_INET6 |
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| 108 | #define AF_ROSE PF_ROSE |
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| 109 | #define AF_DECnet PF_DECnet |
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| 110 | #define AF_NETBEUI PF_NETBEUI |
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| 111 | #define AF_SECURITY PF_SECURITY |
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| 112 | #define AF_KEY PF_KEY |
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| 113 | #define AF_NETLINK PF_NETLINK |
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| 114 | #define AF_ROUTE PF_ROUTE |
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| 115 | #define AF_PACKET PF_PACKET |
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| 116 | #define AF_ASH PF_ASH |
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| 117 | #define AF_ECONET PF_ECONET |
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| 118 | #define AF_ATMSVC PF_ATMSVC |
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| 119 | #define AF_SNA PF_SNA |
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| 120 | #define AF_IRDA PF_IRDA |
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| 121 | #define AF_PPPOX PF_PPPOX |
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| 122 | #define AF_WANPIPE PF_WANPIPE |
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| 123 | #define AF_BLUETOOTH PF_BLUETOOTH |
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| 124 | #define AF_MAX PF_MAX |
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| 125 | |
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| 126 | /* Socket level values. Others are defined in the appropriate headers. |
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| 127 | |
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| 128 | XXX These definitions also should go into the appropriate headers as |
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| 129 | far as they are available. */ |
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| 130 | #define SOL_RAW 255 |
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| 131 | #define SOL_DECNET 261 |
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| 132 | #define SOL_X25 262 |
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| 133 | #define SOL_PACKET 263 |
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| 134 | #define SOL_ATM 264 /* ATM layer (cell level). */ |
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| 135 | #define SOL_AAL 265 /* ATM Adaption Layer (packet level). */ |
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| 136 | #define SOL_IRDA 266 |
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| 137 | |
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| 138 | /* Maximum queue length specifiable by listen. */ |
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| 139 | #define SOMAXCONN 128 |
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| 140 | |
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| 141 | /* Get the definition of the macro to define the common sockaddr members. */ |
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| 142 | #include <bits/sockaddr.h> |
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| 143 | |
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| 144 | /* Structure describing a generic socket address. */ |
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| 145 | struct sockaddr |
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| 146 | { |
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| 147 | __SOCKADDR_COMMON (sa_); /* Common data: address family and length. */ |
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| 148 | char sa_data[14]; /* Address data. */ |
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| 149 | }; |
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| 150 | |
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| 151 | |
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| 152 | /* Structure large enough to hold any socket address (with the historical |
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| 153 | exception of AF_UNIX). We reserve 128 bytes. */ |
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| 154 | #if ULONG_MAX > 0xffffffff |
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| 155 | # define __ss_aligntype __uint64_t |
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| 156 | #else |
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| 157 | # define __ss_aligntype __uint32_t |
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| 158 | #endif |
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| 159 | #define _SS_SIZE 128 |
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| 160 | #define _SS_PADSIZE (_SS_SIZE - (2 * sizeof (__ss_aligntype))) |
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| 161 | |
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| 162 | struct sockaddr_storage |
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| 163 | { |
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| 164 | __SOCKADDR_COMMON (ss_); /* Address family, etc. */ |
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| 165 | __ss_aligntype __ss_align; /* Force desired alignment. */ |
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| 166 | char __ss_padding[_SS_PADSIZE]; |
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| 167 | }; |
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| 168 | |
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| 169 | |
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| 170 | /* Bits in the FLAGS argument to `send', `recv', et al. */ |
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| 171 | enum |
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| 172 | { |
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| 173 | MSG_OOB = 0x01, /* Process out-of-band data. */ |
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| 174 | #define MSG_OOB MSG_OOB |
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| 175 | MSG_PEEK = 0x02, /* Peek at incoming messages. */ |
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| 176 | #define MSG_PEEK MSG_PEEK |
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| 177 | MSG_DONTROUTE = 0x04, /* Don't use local routing. */ |
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| 178 | #define MSG_DONTROUTE MSG_DONTROUTE |
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| 179 | #ifdef __USE_GNU |
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| 180 | /* DECnet uses a different name. */ |
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| 181 | MSG_TRYHARD = MSG_DONTROUTE, |
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| 182 | # define MSG_TRYHARD MSG_DONTROUTE |
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| 183 | #endif |
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| 184 | MSG_CTRUNC = 0x08, /* Control data lost before delivery. */ |
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| 185 | #define MSG_CTRUNC MSG_CTRUNC |
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| 186 | MSG_PROXY = 0x10, /* Supply or ask second address. */ |
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| 187 | #define MSG_PROXY MSG_PROXY |
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| 188 | MSG_TRUNC = 0x20, |
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| 189 | #define MSG_TRUNC MSG_TRUNC |
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| 190 | MSG_DONTWAIT = 0x40, /* Nonblocking IO. */ |
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| 191 | #define MSG_DONTWAIT MSG_DONTWAIT |
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| 192 | MSG_EOR = 0x80, /* End of record. */ |
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| 193 | #define MSG_EOR MSG_EOR |
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| 194 | MSG_WAITALL = 0x100, /* Wait for a full request. */ |
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| 195 | #define MSG_WAITALL MSG_WAITALL |
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| 196 | MSG_FIN = 0x200, |
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| 197 | #define MSG_FIN MSG_FIN |
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| 198 | MSG_SYN = 0x400, |
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| 199 | #define MSG_SYN MSG_SYN |
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| 200 | MSG_CONFIRM = 0x800, /* Confirm path validity. */ |
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| 201 | #define MSG_CONFIRM MSG_CONFIRM |
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| 202 | MSG_RST = 0x1000, |
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| 203 | #define MSG_RST MSG_RST |
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| 204 | MSG_ERRQUEUE = 0x2000, /* Fetch message from error queue. */ |
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| 205 | #define MSG_ERRQUEUE MSG_ERRQUEUE |
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| 206 | MSG_NOSIGNAL = 0x4000, /* Do not generate SIGPIPE. */ |
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| 207 | #define MSG_NOSIGNAL MSG_NOSIGNAL |
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| 208 | MSG_MORE = 0x8000 /* Sender will send more. */ |
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| 209 | #define MSG_MORE MSG_MORE |
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| 210 | }; |
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| 211 | |
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| 212 | |
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| 213 | /* Structure describing messages sent by |
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| 214 | `sendmsg' and received by `recvmsg'. */ |
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| 215 | struct msghdr |
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| 216 | { |
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| 217 | void *msg_name; /* Address to send to/receive from. */ |
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| 218 | socklen_t msg_namelen; /* Length of address data. */ |
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| 219 | |
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| 220 | struct iovec *msg_iov; /* Vector of data to send/receive into. */ |
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| 221 | int msg_iovlen; /* Number of elements in the vector. */ |
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| 222 | |
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| 223 | void *msg_control; /* Ancillary data (eg BSD filedesc passing). */ |
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| 224 | socklen_t msg_controllen; /* Ancillary data buffer length. */ |
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| 225 | |
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| 226 | int msg_flags; /* Flags on received message. */ |
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| 227 | }; |
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| 228 | |
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| 229 | /* Structure used for storage of ancillary data object information. */ |
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| 230 | struct cmsghdr |
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| 231 | { |
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| 232 | size_t cmsg_len; /* Length of data in cmsg_data plus length |
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| 233 | of cmsghdr structure. */ |
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| 234 | int cmsg_level; /* Originating protocol. */ |
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| 235 | int cmsg_type; /* Protocol specific type. */ |
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| 236 | #if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L |
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| 237 | __extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data. */ |
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| 238 | #endif |
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| 239 | }; |
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| 240 | |
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| 241 | /* Ancillary data object manipulation macros. */ |
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| 242 | #if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L |
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| 243 | # define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data) |
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| 244 | #else |
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| 245 | # define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1)) |
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| 246 | #endif |
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| 247 | #define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr (mhdr, cmsg) |
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| 248 | #define CMSG_FIRSTHDR(mhdr) \ |
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| 249 | ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) \ |
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| 250 | ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) NULL) |
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| 251 | #define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) \ |
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| 252 | & (size_t) ~(sizeof (size_t) - 1)) |
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| 253 | #define CMSG_SPACE(len) (CMSG_ALIGN (len) \ |
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| 254 | + CMSG_ALIGN (sizeof (struct cmsghdr))) |
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| 255 | #define CMSG_LEN(len) (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len)) |
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| 256 | |
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| 257 | extern struct cmsghdr *__cmsg_nxthdr (struct msghdr *__mhdr, |
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| 258 | struct cmsghdr *__cmsg) __THROW; |
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| 259 | #ifdef __USE_EXTERN_INLINES |
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| 260 | # ifndef _EXTERN_INLINE |
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| 261 | # define _EXTERN_INLINE extern __inline |
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| 262 | # endif |
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| 263 | _EXTERN_INLINE struct cmsghdr * |
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| 264 | __cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg) __THROW |
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| 265 | { |
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| 266 | if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr)) |
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| 267 | /* The kernel header does this so there may be a reason. */ |
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| 268 | return 0; |
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| 269 | |
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| 270 | __cmsg = (struct cmsghdr *) ((unsigned char *) __cmsg |
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| 271 | + CMSG_ALIGN (__cmsg->cmsg_len)); |
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| 272 | if ((unsigned char *) (__cmsg + 1) >= ((unsigned char *) __mhdr->msg_control |
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| 273 | + __mhdr->msg_controllen) |
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| 274 | || ((unsigned char *) __cmsg + CMSG_ALIGN (__cmsg->cmsg_len) |
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| 275 | > ((unsigned char *) __mhdr->msg_control + __mhdr->msg_controllen))) |
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| 276 | /* No more entries. */ |
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| 277 | return 0; |
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| 278 | return __cmsg; |
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| 279 | } |
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| 280 | #endif /* Use `extern inline'. */ |
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| 281 | |
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| 282 | /* Socket level message types. This must match the definitions in |
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| 283 | <linux/socket.h>. */ |
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| 284 | enum |
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| 285 | { |
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| 286 | SCM_RIGHTS = 0x01, /* Transfer file descriptors. */ |
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| 287 | #define SCM_RIGHTS SCM_RIGHTS |
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| 288 | #ifdef __USE_BSD |
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| 289 | SCM_CREDENTIALS = 0x02, /* Credentials passing. */ |
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| 290 | # define SCM_CREDENTIALS SCM_CREDENTIALS |
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| 291 | #endif |
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| 292 | __SCM_CONNECT = 0x03 /* Data array is `struct scm_connect'. */ |
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| 293 | }; |
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| 294 | |
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| 295 | /* User visible structure for SCM_CREDENTIALS message */ |
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| 296 | |
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| 297 | struct ucred |
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| 298 | { |
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| 299 | pid_t pid; /* PID of sending process. */ |
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| 300 | uid_t uid; /* UID of sending process. */ |
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| 301 | gid_t gid; /* GID of sending process. */ |
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| 302 | }; |
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| 303 | |
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| 304 | /* Get socket manipulation related informations from kernel headers. */ |
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| 305 | #include <asm/socket.h> |
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| 306 | |
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| 307 | |
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| 308 | /* Structure used to manipulate the SO_LINGER option. */ |
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| 309 | struct linger |
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| 310 | { |
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| 311 | int l_onoff; /* Nonzero to linger on close. */ |
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| 312 | int l_linger; /* Time to linger. */ |
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| 313 | }; |
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| 314 | |
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| 315 | #endif /* bits/socket.h */ |
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