AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-12-04 10:50:07 +00:00
Code Issues Packages Projects Releases Wiki Activity
2288c2674d
glibc/sysdeps/unix/sysv/linux/bits/socket.h
Joseph Myers 2288c2674d Fix bits/socket.h IOC* namespace issues (bug 21267). 
sysdeps/unix/sysv/linux/bits/socket.h includes asm/socket.h.  That
includes asm/sockios.h, which on MIPS includes asm/ioctl.h, resulting
in namespace violations from IOC* macros.

bits/socket.h already has code to handle asm/socket.h unconditionally
defining macros that are only wanted for __USE_MISC.  This patch
extends it to handle the IOC* macros as well (always undefining them
if not defined when bits/socket.h was included, as I don't think they
are part of the intended API even for __USE_MISC).

It's possible there should also be a kernel fix - it's not clear to me
that IOC* belong in the uapi headers, and even if they do they might
best be split out into another header to avoid getting defined by this
particular path.  But since glibc needs to deal with existing kernel
headers, it also seems appropriate to extend the existing workaround
to these macros.

Tested (compilation only) with build-many-glibcs.py.

	[BZ #21267]
	* sysdeps/unix/sysv/linux/bits/socket.h (IOCSIZE_MASK): Undefine
	if defined by <asm/socket.h> and not previously defined.
	(IOCSIZE_SHIFT): Likewise.
	(IOC_IN): Likewise.
	(IOC_INOUT): Likewise.
	(IOC_OUT): Likewise.
2017-04-18 21:22:51 +00:00

446 lines
14 KiB
C
Raw Blame History

/* System-specific socket constants and types. Linux version.
Copyright (C) 1991-2017 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, see
<http://www.gnu.org/licenses/>. */
#ifndef __BITS_SOCKET_H
#define __BITS_SOCKET_H
#ifndef _SYS_SOCKET_H
# error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
#endif
#define __need_size_t
#include <stddef.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
/* Get the architecture-dependent definition of enum __socket_type. */
#include <bits/socket_type.h>
/* Protocol families. */
#define PF_UNSPEC 0 /* Unspecified. */
#define PF_LOCAL 1 /* Local to host (pipes and file-domain). */
#define PF_UNIX PF_LOCAL /* POSIX 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_RDS 21 /* RDS sockets. */
#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_LLC 26 /* Linux LLC. */
#define PF_IB 27 /* Native InfiniBand address. */
#define PF_MPLS 28 /* MPLS. */
#define PF_CAN 29 /* Controller Area Network. */
#define PF_TIPC 30 /* TIPC sockets. */
#define PF_BLUETOOTH 31 /* Bluetooth sockets. */
#define PF_IUCV 32 /* IUCV sockets. */
#define PF_RXRPC 33 /* RxRPC sockets. */
#define PF_ISDN 34 /* mISDN sockets. */
#define PF_PHONET 35 /* Phonet sockets. */
#define PF_IEEE802154 36 /* IEEE 802.15.4 sockets. */
#define PF_CAIF 37 /* CAIF sockets. */
#define PF_ALG 38 /* Algorithm sockets. */
#define PF_NFC 39 /* NFC sockets. */
#define PF_VSOCK 40 /* vSockets. */
#define PF_KCM 41 /* Kernel Connection Multiplexor. */
#define PF_QIPCRTR 42 /* Qualcomm IPC Router. */
#define PF_MAX 43 /* 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_RDS PF_RDS
#define AF_SNA PF_SNA
#define AF_IRDA PF_IRDA
#define AF_PPPOX PF_PPPOX
#define AF_WANPIPE PF_WANPIPE
#define AF_LLC PF_LLC
#define AF_IB PF_IB
#define AF_MPLS PF_MPLS
#define AF_CAN PF_CAN
#define AF_TIPC PF_TIPC
#define AF_BLUETOOTH PF_BLUETOOTH
#define AF_IUCV PF_IUCV
#define AF_RXRPC PF_RXRPC
#define AF_ISDN PF_ISDN
#define AF_PHONET PF_PHONET
#define AF_IEEE802154 PF_IEEE802154
#define AF_CAIF PF_CAIF
#define AF_ALG PF_ALG
#define AF_NFC PF_NFC
#define AF_VSOCK PF_VSOCK
#define AF_KCM PF_KCM
#define AF_QIPCRTR PF_QIPCRTR
#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
#define SOL_NETBEUI 267
#define SOL_LLC 268
#define SOL_DCCP 269
#define SOL_NETLINK 270
#define SOL_TIPC 271
#define SOL_RXRPC 272
#define SOL_PPPOL2TP 273
#define SOL_BLUETOOTH 274
#define SOL_PNPIPE 275
#define SOL_RDS 276
#define SOL_IUCV 277
#define SOL_CAIF 278
#define SOL_ALG 279
#define SOL_NFC 280
#define SOL_KCM 281
/* 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). */
#define __ss_aligntype unsigned long int
#define _SS_PADSIZE \
(_SS_SIZE - __SOCKADDR_COMMON_SIZE - sizeof (__ss_aligntype))
struct sockaddr_storage
{
__SOCKADDR_COMMON (ss_); /* Address family, etc. */
char __ss_padding[_SS_PADSIZE];
__ss_aligntype __ss_align; /* Force desired alignment. */
};
/* 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
MSG_WAITFORONE = 0x10000, /* Wait for at least one packet to return.*/
#define MSG_WAITFORONE MSG_WAITFORONE
MSG_BATCH = 0x40000, /* sendmmsg: more messages coming. */
#define MSG_BATCH MSG_BATCH
MSG_FASTOPEN = 0x20000000, /* Send data in TCP SYN. */
#define MSG_FASTOPEN MSG_FASTOPEN
MSG_CMSG_CLOEXEC = 0x40000000 /* Set close_on_exit for file
descriptor received through
SCM_RIGHTS. */
#define MSG_CMSG_CLOEXEC MSG_CMSG_CLOEXEC
};
/* 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. */
size_t msg_iovlen; /* Number of elements in the vector. */
void *msg_control; /* Ancillary data (eg BSD filedesc passing). */
size_t msg_controllen; /* Ancillary data buffer length.
!! The type should be socklen_t but the
definition of the kernel is incompatible
with this. */
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.
!! The type should be socklen_t but the
definition of the kernel is incompatible
with this. */
int cmsg_level; /* Originating protocol. */
int cmsg_type; /* Protocol specific type. */
#if __glibc_c99_flexarr_available
__extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data. */
#endif
};
/* Ancillary data object manipulation macros. */
#if __glibc_c99_flexarr_available
# 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 *) 0)
#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 *
__NTH (__cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg))
{
if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr))
/* The kernel header does this so there may be a reason. */
return (struct cmsghdr *) 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 (struct cmsghdr *) 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_GNU
, SCM_CREDENTIALS = 0x02 /* Credentials passing. */
# define SCM_CREDENTIALS SCM_CREDENTIALS
#endif
};
#ifdef __USE_GNU
/* 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. */
};
#endif
/* Ugly workaround for unclean kernel headers. */
#ifndef __USE_MISC
# ifndef FIOGETOWN
# define __SYS_SOCKET_H_undef_FIOGETOWN
# endif
# ifndef FIOSETOWN
# define __SYS_SOCKET_H_undef_FIOSETOWN
# endif
# ifndef SIOCATMARK
# define __SYS_SOCKET_H_undef_SIOCATMARK
# endif
# ifndef SIOCGPGRP
# define __SYS_SOCKET_H_undef_SIOCGPGRP
# endif
# ifndef SIOCGSTAMP
# define __SYS_SOCKET_H_undef_SIOCGSTAMP
# endif
# ifndef SIOCGSTAMPNS
# define __SYS_SOCKET_H_undef_SIOCGSTAMPNS
# endif
# ifndef SIOCSPGRP
# define __SYS_SOCKET_H_undef_SIOCSPGRP
# endif
#endif
#ifndef IOCSIZE_MASK
# define __SYS_SOCKET_H_undef_IOCSIZE_MASK
#endif
#ifndef IOCSIZE_SHIFT
# define __SYS_SOCKET_H_undef_IOCSIZE_SHIFT
#endif
#ifndef IOC_IN
# define __SYS_SOCKET_H_undef_IOC_IN
#endif
#ifndef IOC_INOUT
# define __SYS_SOCKET_H_undef_IOC_INOUT
#endif
#ifndef IOC_OUT
# define __SYS_SOCKET_H_undef_IOC_OUT
#endif
/* Get socket manipulation related informations from kernel headers. */
#include <asm/socket.h>
#ifndef __USE_MISC
# ifdef __SYS_SOCKET_H_undef_FIOGETOWN
# undef __SYS_SOCKET_H_undef_FIOGETOWN
# undef FIOGETOWN
# endif
# ifdef __SYS_SOCKET_H_undef_FIOSETOWN
# undef __SYS_SOCKET_H_undef_FIOSETOWN
# undef FIOSETOWN
# endif
# ifdef __SYS_SOCKET_H_undef_SIOCATMARK
# undef __SYS_SOCKET_H_undef_SIOCATMARK
# undef SIOCATMARK
# endif
# ifdef __SYS_SOCKET_H_undef_SIOCGPGRP
# undef __SYS_SOCKET_H_undef_SIOCGPGRP
# undef SIOCGPGRP
# endif
# ifdef __SYS_SOCKET_H_undef_SIOCGSTAMP
# undef __SYS_SOCKET_H_undef_SIOCGSTAMP
# undef SIOCGSTAMP
# endif
# ifdef __SYS_SOCKET_H_undef_SIOCGSTAMPNS
# undef __SYS_SOCKET_H_undef_SIOCGSTAMPNS
# undef SIOCGSTAMPNS
# endif
# ifdef __SYS_SOCKET_H_undef_SIOCSPGRP
# undef __SYS_SOCKET_H_undef_SIOCSPGRP
# undef SIOCSPGRP
# endif
#endif
#ifdef __SYS_SOCKET_H_undef_IOCSIZE_MASK
# undef __SYS_SOCKET_H_undef_IOCSIZE_MASK
# undef IOCSIZE_MASK
#endif
#ifdef __SYS_SOCKET_H_undef_IOCSIZE_SHIFT
# undef __SYS_SOCKET_H_undef_IOCSIZE_SHIFT
# undef IOCSIZE_SHIFT
#endif
#ifdef __SYS_SOCKET_H_undef_IOC_IN
# undef __SYS_SOCKET_H_undef_IOC_IN
# undef IOC_IN
#endif
#ifdef __SYS_SOCKET_H_undef_IOC_INOUT
# undef __SYS_SOCKET_H_undef_IOC_INOUT
# undef IOC_INOUT
#endif
#ifdef __SYS_SOCKET_H_undef_IOC_OUT
# undef __SYS_SOCKET_H_undef_IOC_OUT
# undef IOC_OUT
#endif
/* 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 */
Reference in New Issue View Git Blame Copy Permalink