1: /* System-specific socket constants and types.  Generic/4.3 BSD version.
    2:    Copyright (C) 1991,92,1994-1999,2000,2001 Free Software Foundation, Inc.
    3:    This file is part of the GNU C Library.
    4: 
    5:    The GNU C Library is free software; you can redistribute it and/or
    6:    modify it under the terms of the GNU Lesser General Public
    7:    License as published by the Free Software Foundation; either
    8:    version 2.1 of the License, or (at your option) any later version.
    9: 
   10:    The GNU C Library is distributed in the hope that it will be useful,
   11:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   12:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   13:    Lesser General Public License for more details.
   14: 
   15:    You should have received a copy of the GNU Lesser General Public
   16:    License along with the GNU C Library; if not, write to the Free
   17:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   18:    02111-1307 USA.  */
   19: 
   20: #ifndef __BITS_SOCKET_H
   21: #define __BITS_SOCKET_H 1
   22: 
   23: #if !defined _SYS_SOCKET_H && !defined _NETINET_IN_H
   24: # error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
   25: #endif
   26: 
   27: #include <limits.h>
   28: #include <bits/types.h>
   29: 
   30: #define __need_size_t
   31: #include <stddef.h>
   32: 
   33: /* Type for length arguments in socket calls.  */
   34: #ifndef __socklen_t_defined
   35: typedef __socklen_t socklen_t;
   36: # define __socklen_t_defined
   37: #endif
   38: 
   39: 
   40: /* Types of sockets.  */
   41: enum __socket_type
   42: {
   43:   SOCK_STREAM = 1,              /* Sequenced, reliable, connection-based
   44:                                    byte streams.  */
   45: #define SOCK_STREAM SOCK_STREAM
   46:   SOCK_DGRAM = 2,               /* Connectionless, unreliable datagrams
   47:                                    of fixed maximum length.  */
   48: #define SOCK_DGRAM SOCK_DGRAM
   49:   SOCK_RAW = 3,                 /* Raw protocol interface.  */
   50: #define SOCK_RAW SOCK_RAW
   51:   SOCK_RDM = 4,                 /* Reliably-delivered messages.  */
   52: #define SOCK_RDM SOCK_RDM
   53:   SOCK_SEQPACKET = 5            /* Sequenced, reliable, connection-based,
   54:                                    datagrams of fixed maximum length.  */
   55: #define SOCK_SEQPACKET SOCK_SEQPACKET
   56: };
   57: 
   58: /* Protocol families.  */
   59: #define PF_UNSPEC       0     /* Unspecified.  */
   60: #define PF_LOCAL        1      /* Local to host (pipes and file-domain).  */
   61: #define PF_UNIX         PF_LOCAL /* Old BSD name for PF_LOCAL.  */
   62: #define PF_FILE         PF_LOCAL /* POSIX name for PF_LOCAL.  */
   63: #define PF_INET         2      /* IP protocol family.  */
   64: #define PF_IMPLINK      3    /* ARPAnet IMP protocol.  */
   65: #define PF_PUP          4       /* PUP protocols.  */
   66: #define PF_CHAOS        5      /* MIT Chaos protocols.  */
   67: #define PF_NS           6        /* Xerox NS protocols.  */
   68: #define PF_ISO          7       /* ISO protocols.  */
   69: #define PF_OSI          PF_ISO
   70: #define PF_ECMA         8      /* ECMA protocols.  */
   71: #define PF_DATAKIT      9    /* AT&T Datakit protocols.  */
   72: #define PF_CCITT        10     /* CCITT protocols (X.25 et al).  */
   73: #define PF_SNA          11      /* IBM SNA protocol.  */
   74: #define PF_DECnet       12    /* DECnet protocols.  */
   75: #define PF_DLI          13      /* Direct data link interface.  */
   76: #define PF_LAT          14      /* DEC Local Area Transport protocol.  */
   77: #define PF_HYLINK       15    /* NSC Hyperchannel protocol.  */
   78: #define PF_APPLETALK    16 /* Don't use this.  */
   79: #define PF_ROUTE        17     /* Internal Routing Protocol.  */
   80: #define PF_LINK         18     /* Link layer interface.  */
   81: #define PF_XTP          19      /* eXpress Transfer Protocol (no AF).  */
   82: #define PF_COIP         20     /* Connection-oriented IP, aka ST II.  */
   83: #define PF_CNT          21      /* Computer Network Technology.  */
   84: #define PF_RTIP         22     /* Help Identify RTIP packets.  **/
   85: #define PF_IPX          23      /* Novell Internet Protocol.  */
   86: #define PF_SIP          24      /* Simple Internet Protocol.  */
   87: #define PF_PIP          25      /* Help Identify PIP packets.  */
   88: #define PF_INET6        26     /* IP version 6.  */
   89: #define PF_MAX          27
   90: 
   91: /* Address families.  */
   92: #define AF_UNSPEC       PF_UNSPEC
   93: #define AF_LOCAL        PF_LOCAL
   94: #define AF_UNIX         PF_UNIX
   95: #define AF_FILE         PF_FILE
   96: #define AF_INET         PF_INET
   97: #define AF_IMPLINK      PF_IMPLINK
   98: #define AF_PUP          PF_PUP
   99: #define AF_CHAOS        PF_CHAOS
  100: #define AF_NS           PF_NS
  101: #define AF_ISO          PF_ISO
  102: #define AF_OSI          PF_OSI
  103: #define AF_ECMA         PF_ECMA
  104: #define AF_DATAKIT      PF_DATAKIT
  105: #define AF_CCITT        PF_CCITT
  106: #define AF_SNA          PF_SNA
  107: #define AF_DECnet       PF_DECnet
  108: #define AF_DLI          PF_DLI
  109: #define AF_LAT          PF_LAT
  110: #define AF_HYLINK       PF_HYLINK
  111: #define AF_APPLETALK    PF_APPLETALK
  112: #define AF_ROUTE        PF_ROUTE
  113: #define AF_LINK         PF_LINK
  114: #define pseudo_AF_XTP   PF_XTP
  115: #define AF_COIP         PF_COIP
  116: #define AF_CNT          PF_CNT
  117: #define pseudo_AF_RTIP  PF_RTIP
  118: #define AF_IPX          PF_IPX
  119: #define AF_SIP          PF_SIP
  120: #define pseudo_AF_PIP   PF_PIP
  121: #define AF_INET6        PF_INET6
  122: #define AF_MAX          PF_MAX
  123: 
  124: 
  125: /* Get the definition of the macro to define the common sockaddr members.  */
  126: #include <bits/sockaddr.h>
  127: 
  128: /* Structure describing a generic socket address.  */
  129: struct sockaddr
  130:   {
  131:     __SOCKADDR_COMMON (sa_);    /* Common data: address family and length.  */
  132:     char sa_data[14];           /* Address data.  */
  133:   };
  134: 
  135: 
  136: /* Structure large enough to hold any socket address (with the historical
  137:    exception of AF_UNIX).  We reserve 128 bytes.  */
  138: #if ULONG_MAX > 0xffffffff
  139: # define __ss_aligntype __uint64_t
  140: #else
  141: # define __ss_aligntype __uint32_t
  142: #endif
  143: #define _SS_SIZE        128
  144: #define _SS_PADSIZE     (_SS_SIZE - (2 * sizeof (__ss_aligntype)))
  145: 
  146: struct sockaddr_storage
  147:   {
  148:     __SOCKADDR_COMMON (ss_);    /* Address family, etc.  */
  149:     __ss_aligntype __ss_align;  /* Force desired alignment.  */
  150:     char __ss_padding[_SS_PADSIZE];
  151:   };
  152: 
  153: 
  154: /* Bits in the FLAGS argument to `send', `recv', et al.  */
  155: enum
  156:   {
  157:     MSG_OOB             = 0x01,    /* Process out-of-band data.  */
  158: #define MSG_OOB MSG_OOB
  159:     MSG_PEEK            = 0x02,   /* Peek at incoming messages.  */
  160: #define MSG_PEEK MSG_PEEK
  161:     MSG_DONTROUTE       = 0x04,       /* Don't use local routing.  */
  162: #define MSG_DONTROUTE MSG_DONTROUTE
  163:     MSG_EOR             = 0x08,    /* Data completes record.  */
  164: #define MSG_EOR MSG_EOR
  165:     MSG_TRUNC           = 0x10,  /* Data discarded before delivery.  */
  166: #define MSG_TRUNC MSG_TRUNC
  167:     MSG_CTRUNC          = 0x20, /* Control data lost before delivery.  */
  168: #define MSG_CTRUNC MSG_CTRUNC
  169:     MSG_WAITALL         = 0x40,        /* Wait for full request or error.  */
  170: #define MSG_WAITALL MSG_WAITALL
  171:     MSG_DONTWAIT        = 0x80 /* This message should be nonblocking.  */
  172: #define MSG_DONTWAIT MSG_DONTWAIT
  173:   };
  174: 
  175: 
  176: /* Structure describing messages sent by
  177:    `sendmsg' and received by `recvmsg'.  */
  178: struct msghdr
  179:   {
  180:     __ptr_t msg_name;           /* Address to send to/receive from.  */
  181:     socklen_t msg_namelen;      /* Length of address data.  */
  182: 
  183:     struct iovec *msg_iov;      /* Vector of data to send/receive into.  */
  184:     int msg_iovlen;             /* Number of elements in the vector.  */
  185: 
  186:     __ptr_t msg_accrights;      /* Access rights information.  */
  187:     socklen_t msg_accrightslen; /* Length of access rights information.  */
  188: 
  189:     int msg_flags;              /* Flags in received message.  */
  190:   };
  191: 
  192: 
  193: /* Protocol number used to manipulate socket-level options
  194:    with `getsockopt' and `setsockopt'.  */
  195: #define SOL_SOCKET      0xffff
  196: 
  197: /* Socket-level options for `getsockopt' and `setsockopt'.  */
  198: enum
  199:   {
  200:     SO_DEBUG = 0x0001,          /* Record debugging information.  */
  201: #define SO_DEBUG SO_DEBUG
  202:     SO_ACCEPTCONN = 0x0002,     /* Accept connections on socket.  */
  203: #define SO_ACCEPTCONN SO_ACCEPTCONN
  204:     SO_REUSEADDR = 0x0004,      /* Allow reuse of local addresses.  */
  205: #define SO_REUSEADDR SO_REUSEADDR
  206:     SO_KEEPALIVE = 0x0008,      /* Keep connections alive and send
  207:                                    SIGPIPE when they die.  */
  208: #define SO_KEEPALIVE SO_KEEPALIVE
  209:     SO_DONTROUTE = 0x0010,      /* Don't do local routing.  */
  210: #define SO_DONTROUTE SO_DONTROUTE
  211:     SO_BROADCAST = 0x0020,      /* Allow transmission of
  212:                                    broadcast messages.  */
  213: #define SO_BROADCAST SO_BROADCAST
  214:     SO_USELOOPBACK = 0x0040,    /* Use the software loopback to avoid
  215:                                    hardware use when possible.  */
  216: #define SO_USELOOPBACK SO_USELOOPBACK
  217:     SO_LINGER = 0x0080,         /* Block on close of a reliable
  218:                                    socket to transmit pending data.  */
  219: #define SO_LINGER SO_LINGER
  220:     SO_OOBINLINE = 0x0100,      /* Receive out-of-band data in-band.  */
  221: #define SO_OOBINLINE SO_OOBINLINE
  222:     SO_REUSEPORT = 0x0200,      /* Allow local address and port reuse.  */
  223: #define SO_REUSEPORT SO_REUSEPORT
  224:     SO_SNDBUF = 0x1001,         /* Send buffer size.  */
  225: #define SO_SNDBUF SO_SNDBUF
  226:     SO_RCVBUF = 0x1002,         /* Receive buffer.  */
  227: #define SO_RCVBUF SO_RCVBUF
  228:     SO_SNDLOWAT = 0x1003,       /* Send low-water mark.  */
  229: #define SO_SNDLOWAT SO_SNDLOWAT
  230:     SO_RCVLOWAT = 0x1004,       /* Receive low-water mark.  */
  231: #define SO_RCVLOWAT SO_RCVLOWAT
  232:     SO_SNDTIMEO = 0x1005,       /* Send timeout.  */
  233: #define SO_SNDTIMEO SO_SNDTIMEO
  234:     SO_RCVTIMEO = 0x1006,       /* Receive timeout.  */
  235: #define SO_RCVTIMEO SO_RCVTIMEO
  236:     SO_ERROR = 0x1007,          /* Get and clear error status.  */
  237: #define SO_ERROR SO_ERROR
  238:     SO_STYLE = 0x1008,          /* Get socket connection style.  */
  239: #define SO_STYLE SO_STYLE
  240:     SO_TYPE = SO_STYLE          /* Compatible name for SO_STYLE.  */
  241: #define SO_TYPE SO_TYPE
  242:   };
  243: 
  244: /* Structure used to manipulate the SO_LINGER option.  */
  245: struct linger
  246:   {
  247:     int l_onoff;                /* Nonzero to linger on close.  */
  248:     int l_linger;               /* Time to linger.  */
  249:   };
  250: 
  251: #endif  /* bits/socket.h */