diff options
Diffstat (limited to 'libc/sysdeps/linux/common/bits/socket.h')
| -rw-r--r-- | libc/sysdeps/linux/common/bits/socket.h | 315 |
1 files changed, 315 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/bits/socket.h b/libc/sysdeps/linux/common/bits/socket.h new file mode 100644 index 000000000..61644073b --- /dev/null +++ b/libc/sysdeps/linux/common/bits/socket.h @@ -0,0 +1,315 @@ +/* System-specific socket constants and types. Linux version. + Copyright (C) 1991,1992,1994-1999,2000,2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef __BITS_SOCKET_H +#define __BITS_SOCKET_H + +#if !defined _SYS_SOCKET_H && !defined _NETINET_IN_H +# error "Never include <bits/socket.h> directly; use <sys/socket.h> instead." +#endif + +#define __need_size_t +#define __need_NULL +#include <stddef.h> + +#include <limits.h> +#include <sys/types.h> + +/* Type for length arguments in socket calls. */ +#ifndef __socklen_t_defined +typedef __socklen_t socklen_t; +# define __socklen_t_defined +#endif + +/* Types of sockets. */ +enum __socket_type +{ + SOCK_STREAM = 1, /* Sequenced, reliable, connection-based + byte streams. */ +#define SOCK_STREAM SOCK_STREAM + SOCK_DGRAM = 2, /* Connectionless, unreliable datagrams + of fixed maximum length. */ +#define SOCK_DGRAM SOCK_DGRAM + SOCK_RAW = 3, /* Raw protocol interface. */ +#define SOCK_RAW SOCK_RAW + SOCK_RDM = 4, /* Reliably-delivered messages. */ +#define SOCK_RDM SOCK_RDM + SOCK_SEQPACKET = 5, /* Sequenced, reliable, connection-based, + datagrams of fixed maximum length. */ +#define SOCK_SEQPACKET SOCK_SEQPACKET + SOCK_PACKET = 10 /* Linux specific way of getting packets + at the dev level. For writing rarp and + other similar things on the user level. */ +#define SOCK_PACKET SOCK_PACKET +}; + +/* Protocol families. */ +#define PF_UNSPEC 0 /* Unspecified. */ +#define PF_LOCAL 1 /* Local to host (pipes and file-domain). */ +#define PF_UNIX PF_LOCAL /* Old BSD name for PF_LOCAL. */ +#define PF_FILE PF_LOCAL /* Another non-standard name for PF_LOCAL. */ +#define PF_INET 2 /* IP protocol family. */ +#define PF_AX25 3 /* Amateur Radio AX.25. */ +#define PF_IPX 4 /* Novell Internet Protocol. */ +#define PF_APPLETALK 5 /* Appletalk DDP. */ +#define PF_NETROM 6 /* Amateur radio NetROM. */ +#define PF_BRIDGE 7 /* Multiprotocol bridge. */ +#define PF_ATMPVC 8 /* ATM PVCs. */ +#define PF_X25 9 /* Reserved for X.25 project. */ +#define PF_INET6 10 /* IP version 6. */ +#define PF_ROSE 11 /* Amateur Radio X.25 PLP. */ +#define PF_DECnet 12 /* Reserved for DECnet project. */ +#define PF_NETBEUI 13 /* Reserved for 802.2LLC project. */ +#define PF_SECURITY 14 /* Security callback pseudo AF. */ +#define PF_KEY 15 /* PF_KEY key management API. */ +#define PF_NETLINK 16 +#define PF_ROUTE PF_NETLINK /* Alias to emulate 4.4BSD. */ +#define PF_PACKET 17 /* Packet family. */ +#define PF_ASH 18 /* Ash. */ +#define PF_ECONET 19 /* Acorn Econet. */ +#define PF_ATMSVC 20 /* ATM SVCs. */ +#define PF_SNA 22 /* Linux SNA Project */ +#define PF_IRDA 23 /* IRDA sockets. */ +#define PF_PPPOX 24 /* PPPoX sockets. */ +#define PF_WANPIPE 25 /* Wanpipe API sockets. */ +#define PF_BLUETOOTH 31 /* Bluetooth sockets. */ +#define PF_MAX 32 /* For now.. */ + +/* Address families. */ +#define AF_UNSPEC PF_UNSPEC +#define AF_LOCAL PF_LOCAL +#define AF_UNIX PF_UNIX +#define AF_FILE PF_FILE +#define AF_INET PF_INET +#define AF_AX25 PF_AX25 +#define AF_IPX PF_IPX +#define AF_APPLETALK PF_APPLETALK +#define AF_NETROM PF_NETROM +#define AF_BRIDGE PF_BRIDGE +#define AF_ATMPVC PF_ATMPVC +#define AF_X25 PF_X25 +#define AF_INET6 PF_INET6 +#define AF_ROSE PF_ROSE +#define AF_DECnet PF_DECnet +#define AF_NETBEUI PF_NETBEUI +#define AF_SECURITY PF_SECURITY +#define AF_KEY PF_KEY +#define AF_NETLINK PF_NETLINK +#define AF_ROUTE PF_ROUTE +#define AF_PACKET PF_PACKET +#define AF_ASH PF_ASH +#define AF_ECONET PF_ECONET +#define AF_ATMSVC PF_ATMSVC +#define AF_SNA PF_SNA +#define AF_IRDA PF_IRDA +#define AF_PPPOX PF_PPPOX +#define AF_WANPIPE PF_WANPIPE +#define AF_BLUETOOTH PF_BLUETOOTH +#define AF_MAX PF_MAX + +/* Socket level values. Others are defined in the appropriate headers. + + XXX These definitions also should go into the appropriate headers as + far as they are available. */ +#define SOL_RAW 255 +#define SOL_DECNET 261 +#define SOL_X25 262 +#define SOL_PACKET 263 +#define SOL_ATM 264 /* ATM layer (cell level). */ +#define SOL_AAL 265 /* ATM Adaption Layer (packet level). */ +#define SOL_IRDA 266 + +/* Maximum queue length specifiable by listen. */ +#define SOMAXCONN 128 + +/* Get the definition of the macro to define the common sockaddr members. */ +#include <bits/sockaddr.h> + +/* Structure describing a generic socket address. */ +struct sockaddr + { + __SOCKADDR_COMMON (sa_); /* Common data: address family and length. */ + char sa_data[14]; /* Address data. */ + }; + + +/* Structure large enough to hold any socket address (with the historical + exception of AF_UNIX). We reserve 128 bytes. */ +#if ULONG_MAX > 0xffffffff +# define __ss_aligntype __uint64_t +#else +# define __ss_aligntype __uint32_t +#endif +#define _SS_SIZE 128 +#define _SS_PADSIZE (_SS_SIZE - (2 * sizeof (__ss_aligntype))) + +struct sockaddr_storage + { + __SOCKADDR_COMMON (ss_); /* Address family, etc. */ + __ss_aligntype __ss_align; /* Force desired alignment. */ + char __ss_padding[_SS_PADSIZE]; + }; + + +/* Bits in the FLAGS argument to `send', `recv', et al. */ +enum + { + MSG_OOB = 0x01, /* Process out-of-band data. */ +#define MSG_OOB MSG_OOB + MSG_PEEK = 0x02, /* Peek at incoming messages. */ +#define MSG_PEEK MSG_PEEK + MSG_DONTROUTE = 0x04, /* Don't use local routing. */ +#define MSG_DONTROUTE MSG_DONTROUTE +#ifdef __USE_GNU + /* DECnet uses a different name. */ + MSG_TRYHARD = MSG_DONTROUTE, +# define MSG_TRYHARD MSG_DONTROUTE +#endif + MSG_CTRUNC = 0x08, /* Control data lost before delivery. */ +#define MSG_CTRUNC MSG_CTRUNC + MSG_PROXY = 0x10, /* Supply or ask second address. */ +#define MSG_PROXY MSG_PROXY + MSG_TRUNC = 0x20, +#define MSG_TRUNC MSG_TRUNC + MSG_DONTWAIT = 0x40, /* Nonblocking IO. */ +#define MSG_DONTWAIT MSG_DONTWAIT + MSG_EOR = 0x80, /* End of record. */ +#define MSG_EOR MSG_EOR + MSG_WAITALL = 0x100, /* Wait for a full request. */ +#define MSG_WAITALL MSG_WAITALL + MSG_FIN = 0x200, +#define MSG_FIN MSG_FIN + MSG_SYN = 0x400, +#define MSG_SYN MSG_SYN + MSG_CONFIRM = 0x800, /* Confirm path validity. */ +#define MSG_CONFIRM MSG_CONFIRM + MSG_RST = 0x1000, +#define MSG_RST MSG_RST + MSG_ERRQUEUE = 0x2000, /* Fetch message from error queue. */ +#define MSG_ERRQUEUE MSG_ERRQUEUE + MSG_NOSIGNAL = 0x4000, /* Do not generate SIGPIPE. */ +#define MSG_NOSIGNAL MSG_NOSIGNAL + MSG_MORE = 0x8000 /* Sender will send more. */ +#define MSG_MORE MSG_MORE + }; + + +/* Structure describing messages sent by + `sendmsg' and received by `recvmsg'. */ +struct msghdr + { + void *msg_name; /* Address to send to/receive from. */ + socklen_t msg_namelen; /* Length of address data. */ + + struct iovec *msg_iov; /* Vector of data to send/receive into. */ + int msg_iovlen; /* Number of elements in the vector. */ + + void *msg_control; /* Ancillary data (eg BSD filedesc passing). */ + socklen_t msg_controllen; /* Ancillary data buffer length. */ + + int msg_flags; /* Flags on received message. */ + }; + +/* Structure used for storage of ancillary data object information. */ +struct cmsghdr + { + size_t cmsg_len; /* Length of data in cmsg_data plus length + of cmsghdr structure. */ + int cmsg_level; /* Originating protocol. */ + int cmsg_type; /* Protocol specific type. */ +#if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L + __extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data. */ +#endif + }; + +/* Ancillary data object manipulation macros. */ +#if (!defined __STRICT_ANSI__ && __GNUC__ >= 2) || __STDC_VERSION__ >= 199901L +# define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data) +#else +# define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1)) +#endif +#define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr (mhdr, cmsg) +#define CMSG_FIRSTHDR(mhdr) \ + ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) \ + ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) NULL) +#define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) \ + & (size_t) ~(sizeof (size_t) - 1)) +#define CMSG_SPACE(len) (CMSG_ALIGN (len) \ + + CMSG_ALIGN (sizeof (struct cmsghdr))) +#define CMSG_LEN(len) (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len)) + +extern struct cmsghdr *__cmsg_nxthdr (struct msghdr *__mhdr, + struct cmsghdr *__cmsg) __THROW; +#ifdef __USE_EXTERN_INLINES +# ifndef _EXTERN_INLINE +# define _EXTERN_INLINE extern __inline +# endif +_EXTERN_INLINE struct cmsghdr * +__cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg) __THROW +{ + if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr)) + /* The kernel header does this so there may be a reason. */ + return 0; + + __cmsg = (struct cmsghdr *) ((unsigned char *) __cmsg + + CMSG_ALIGN (__cmsg->cmsg_len)); + if ((unsigned char *) (__cmsg + 1) > ((unsigned char *) __mhdr->msg_control + + __mhdr->msg_controllen) + || ((unsigned char *) __cmsg + CMSG_ALIGN (__cmsg->cmsg_len) + > ((unsigned char *) __mhdr->msg_control + __mhdr->msg_controllen))) + /* No more entries. */ + return 0; + return __cmsg; +} +#endif /* Use `extern inline'. */ + +/* Socket level message types. This must match the definitions in + <linux/socket.h>. */ +enum + { + SCM_RIGHTS = 0x01, /* Transfer file descriptors. */ +#define SCM_RIGHTS SCM_RIGHTS +#ifdef __USE_BSD + SCM_CREDENTIALS = 0x02, /* Credentials passing. */ +# define SCM_CREDENTIALS SCM_CREDENTIALS +#endif + __SCM_CONNECT = 0x03 /* Data array is `struct scm_connect'. */ + }; + +/* User visible structure for SCM_CREDENTIALS message */ + +struct ucred +{ + pid_t pid; /* PID of sending process. */ + uid_t uid; /* UID of sending process. */ + gid_t gid; /* GID of sending process. */ +}; + +/* Get socket manipulation related informations from kernel headers. */ +#include <asm/socket.h> + + +/* Structure used to manipulate the SO_LINGER option. */ +struct linger + { + int l_onoff; /* Nonzero to linger on close. */ + int l_linger; /* Time to linger. */ + }; + +#endif /* bits/socket.h */ |