include/asm-generic/fcntl.h

   1 #ifndef _ASM_GENERIC_FCNTL_H
   2 #define _ASM_GENERIC_FCNTL_H
   3
   4 #include <linux/types.h>
   5
   6 /*
   7  * FMODE_EXEC is 0x20
   8  * FMODE_NONOTIFY is 0x1000000
   9  * These cannot be used by userspace O_* until internal and external open
  10  * flags are split.
  11  * -Eric Paris
  12  */
  13
  14 #define O_ACCMODE       00000003
  15 #define O_RDONLY        00000000
  16 #define O_WRONLY        00000001
  17 #define O_RDWR          00000002
  18 #ifndef O_CREAT
  19 #define O_CREAT         00000100        /* not fcntl */
  20 #endif
  21 #ifndef O_EXCL
  22 #define O_EXCL          00000200        /* not fcntl */
  23 #endif
  24 #ifndef O_NOCTTY
  25 #define O_NOCTTY        00000400        /* not fcntl */
  26 #endif
  27 #ifndef O_TRUNC
  28 #define O_TRUNC         00001000        /* not fcntl */
  29 #endif
  30 #ifndef O_APPEND
  31 #define O_APPEND        00002000
  32 #endif
  33 #ifndef O_NONBLOCK
  34 #define O_NONBLOCK      00004000
  35 #endif
  36 #ifndef O_DSYNC
  37 #define O_DSYNC         00010000        /* used to be O_SYNC, see below */
  38 #endif
  39 #ifndef FASYNC
  40 #define FASYNC          00020000        /* fcntl, for BSD compatibility */
  41 #endif
  42 #ifndef O_DIRECT
  43 #define O_DIRECT        00040000        /* direct disk access hint */
  44 #endif
  45 #ifndef O_LARGEFILE
  46 #define O_LARGEFILE     00100000
  47 #endif
  48 #ifndef O_DIRECTORY
  49 #define O_DIRECTORY     00200000        /* must be a directory */
  50 #endif
  51 #ifndef O_NOFOLLOW
  52 #define O_NOFOLLOW      00400000        /* don't follow links */
  53 #endif
  54 #ifndef O_NOATIME
  55 #define O_NOATIME       01000000
  56 #endif
  57 #ifndef O_CLOEXEC
  58 #define O_CLOEXEC       02000000        /* set close_on_exec */
  59 #endif
  60
  61 /*
  62  * Before Linux 2.6.33 only O_DSYNC semantics were implemented, but using
  63  * the O_SYNC flag.  We continue to use the existing numerical value
  64  * for O_DSYNC semantics now, but using the correct symbolic name for it.
  65  * This new value is used to request true Posix O_SYNC semantics.  It is
  66  * defined in this strange way to make sure applications compiled against
  67  * new headers get at least O_DSYNC semantics on older kernels.
  68  *
  69  * This has the nice side-effect that we can simply test for O_DSYNC
  70  * wherever we do not care if O_DSYNC or O_SYNC is used.
  71  *
  72  * Note: __O_SYNC must never be used directly.
  73  */
  74 #ifndef O_SYNC
  75 #define __O_SYNC        04000000
  76 #define O_SYNC          (__O_SYNC|O_DSYNC)
  77 #endif
  78
  79 #ifndef O_NDELAY
  80 #define O_NDELAY        O_NONBLOCK
  81 #endif
  82
  83 #define F_DUPFD         0       /* dup */
  84 #define F_GETFD         1       /* get close_on_exec */
  85 #define F_SETFD         2       /* set/clear close_on_exec */
  86 #define F_GETFL         3       /* get file->f_flags */
  87 #define F_SETFL         4       /* set file->f_flags */
  88 #ifndef F_GETLK
  89 #define F_GETLK         5
  90 #define F_SETLK         6
  91 #define F_SETLKW        7
  92 #endif
  93 #ifndef F_SETOWN
  94 #define F_SETOWN        8       /* for sockets. */
  95 #define F_GETOWN        9       /* for sockets. */
  96 #endif
  97 #ifndef F_SETSIG
  98 #define F_SETSIG        10      /* for sockets. */
  99 #define F_GETSIG        11      /* for sockets. */
 100 #endif
 101
 102 #ifndef CONFIG_64BIT
 103 #ifndef F_GETLK64
 104 #define F_GETLK64       12      /*  using 'struct flock64' */
 105 #define F_SETLK64       13
 106 #define F_SETLKW64      14
 107 #endif
 108 #endif
 109
 110 #ifndef F_SETOWN_EX
 111 #define F_SETOWN_EX     15
 112 #define F_GETOWN_EX     16
 113 #endif
 114
 115 #define F_OWNER_TID     0
 116 #define F_OWNER_PID     1
 117 #define F_OWNER_PGRP    2
 118
 119 struct f_owner_ex {
 120         int     type;
 121         pid_t   pid;
 122 };
 123
 124 /* for F_[GET|SET]FL */
 125 #define FD_CLOEXEC      1       /* actually anything with low bit set goes */
 126
 127 /* for posix fcntl() and lockf() */
 128 #ifndef F_RDLCK
 129 #define F_RDLCK         0
 130 #define F_WRLCK         1
 131 #define F_UNLCK         2
 132 #endif
 133
 134 /* for old implementation of bsd flock () */
 135 #ifndef F_EXLCK
 136 #define F_EXLCK         4       /* or 3 */
 137 #define F_SHLCK         8       /* or 4 */
 138 #endif
 139
 140 /* for leases */
 141 #ifndef F_INPROGRESS
 142 #define F_INPROGRESS    16
 143 #endif
 144
 145 /* operations for bsd flock(), also used by the kernel implementation */
 146 #define LOCK_SH         1       /* shared lock */
 147 #define LOCK_EX         2       /* exclusive lock */
 148 #define LOCK_NB         4       /* or'd with one of the above to prevent
 149                                    blocking */
 150 #define LOCK_UN         8       /* remove lock */
 151
 152 #define LOCK_MAND       32      /* This is a mandatory flock ... */
 153 #define LOCK_READ       64      /* which allows concurrent read operations */
 154 #define LOCK_WRITE      128     /* which allows concurrent write operations */
 155 #define LOCK_RW         192     /* which allows concurrent read & write ops */
 156
 157 #define F_LINUX_SPECIFIC_BASE   1024
 158
 159 #ifndef HAVE_ARCH_STRUCT_FLOCK
 160 #ifndef __ARCH_FLOCK_PAD
 161 #define __ARCH_FLOCK_PAD
 162 #endif
 163
 164 struct flock {
 165         short   l_type;
 166         short   l_whence;
 167         __kernel_off_t  l_start;
 168         __kernel_off_t  l_len;
 169         __kernel_pid_t  l_pid;
 170         __ARCH_FLOCK_PAD
 171 };
 172 #endif
 173
 174 #ifndef CONFIG_64BIT
 175
 176 #ifndef HAVE_ARCH_STRUCT_FLOCK64
 177 #ifndef __ARCH_FLOCK64_PAD
 178 #define __ARCH_FLOCK64_PAD
 179 #endif
 180
 181 struct flock64 {
 182         short  l_type;
 183         short  l_whence;
 184         __kernel_loff_t l_start;
 185         __kernel_loff_t l_len;
 186         __kernel_pid_t  l_pid;
 187         __ARCH_FLOCK64_PAD
 188 };
 189 #endif
 190 #endif /* !CONFIG_64BIT */
 191
 192 #endif /* _ASM_GENERIC_FCNTL_H */