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| 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
|---|---|
| 2 | #ifndef _ASM_GENERIC_FCNTL_H |
| 3 | #define _ASM_GENERIC_FCNTL_H |
| 4 | |
| 5 | #include <linux/types.h> |
| 6 | |
| 7 | /* |
| 8 | * FMODE_EXEC is 0x20 |
| 9 | * FMODE_NONOTIFY is 0x4000000 |
| 10 | * These cannot be used by userspace O_* until internal and external open |
| 11 | * flags are split. |
| 12 | * -Eric Paris |
| 13 | */ |
| 14 | |
| 15 | /* |
| 16 | * When introducing new O_* bits, please check its uniqueness in fcntl_init(). |
| 17 | */ |
| 18 | |
| 19 | #define O_ACCMODE 00000003 |
| 20 | #define O_RDONLY 00000000 |
| 21 | #define O_WRONLY 00000001 |
| 22 | #define O_RDWR 00000002 |
| 23 | #ifndef O_CREAT |
| 24 | #define O_CREAT 00000100 /* not fcntl */ |
| 25 | #endif |
| 26 | #ifndef O_EXCL |
| 27 | #define O_EXCL 00000200 /* not fcntl */ |
| 28 | #endif |
| 29 | #ifndef O_NOCTTY |
| 30 | #define O_NOCTTY 00000400 /* not fcntl */ |
| 31 | #endif |
| 32 | #ifndef O_TRUNC |
| 33 | #define O_TRUNC 00001000 /* not fcntl */ |
| 34 | #endif |
| 35 | #ifndef O_APPEND |
| 36 | #define O_APPEND 00002000 |
| 37 | #endif |
| 38 | #ifndef O_NONBLOCK |
| 39 | #define O_NONBLOCK 00004000 |
| 40 | #endif |
| 41 | #ifndef O_DSYNC |
| 42 | #define O_DSYNC 00010000 /* used to be O_SYNC, see below */ |
| 43 | #endif |
| 44 | #ifndef FASYNC |
| 45 | #define FASYNC 00020000 /* fcntl, for BSD compatibility */ |
| 46 | #endif |
| 47 | #ifndef O_DIRECT |
| 48 | #define O_DIRECT 00040000 /* direct disk access hint */ |
| 49 | #endif |
| 50 | #ifndef O_LARGEFILE |
| 51 | #define O_LARGEFILE 00100000 |
| 52 | #endif |
| 53 | #ifndef O_DIRECTORY |
| 54 | #define O_DIRECTORY 00200000 /* must be a directory */ |
| 55 | #endif |
| 56 | #ifndef O_NOFOLLOW |
| 57 | #define O_NOFOLLOW 00400000 /* don't follow links */ |
| 58 | #endif |
| 59 | #ifndef O_NOATIME |
| 60 | #define O_NOATIME 01000000 |
| 61 | #endif |
| 62 | #ifndef O_CLOEXEC |
| 63 | #define O_CLOEXEC 02000000 /* set close_on_exec */ |
| 64 | #endif |
| 65 | |
| 66 | /* |
| 67 | * Before Linux 2.6.33 only O_DSYNC semantics were implemented, but using |
| 68 | * the O_SYNC flag. We continue to use the existing numerical value |
| 69 | * for O_DSYNC semantics now, but using the correct symbolic name for it. |
| 70 | * This new value is used to request true Posix O_SYNC semantics. It is |
| 71 | * defined in this strange way to make sure applications compiled against |
| 72 | * new headers get at least O_DSYNC semantics on older kernels. |
| 73 | * |
| 74 | * This has the nice side-effect that we can simply test for O_DSYNC |
| 75 | * wherever we do not care if O_DSYNC or O_SYNC is used. |
| 76 | * |
| 77 | * Note: __O_SYNC must never be used directly. |
| 78 | */ |
| 79 | #ifndef O_SYNC |
| 80 | #define __O_SYNC 04000000 |
| 81 | #define O_SYNC (__O_SYNC|O_DSYNC) |
| 82 | #endif |
| 83 | |
| 84 | #ifndef O_PATH |
| 85 | #define O_PATH 010000000 |
| 86 | #endif |
| 87 | |
| 88 | #ifndef __O_TMPFILE |
| 89 | #define __O_TMPFILE 020000000 |
| 90 | #endif |
| 91 | |
| 92 | /* a horrid kludge trying to make sure that this will fail on old kernels */ |
| 93 | #define O_TMPFILE (__O_TMPFILE | O_DIRECTORY) |
| 94 | |
| 95 | #ifndef O_NDELAY |
| 96 | #define O_NDELAY O_NONBLOCK |
| 97 | #endif |
| 98 | |
| 99 | #define F_DUPFD 0 /* dup */ |
| 100 | #define F_GETFD 1 /* get close_on_exec */ |
| 101 | #define F_SETFD 2 /* set/clear close_on_exec */ |
| 102 | #define F_GETFL 3 /* get file->f_flags */ |
| 103 | #define F_SETFL 4 /* set file->f_flags */ |
| 104 | #ifndef F_GETLK |
| 105 | #define F_GETLK 5 |
| 106 | #define F_SETLK 6 |
| 107 | #define F_SETLKW 7 |
| 108 | #endif |
| 109 | #ifndef F_SETOWN |
| 110 | #define F_SETOWN 8 /* for sockets. */ |
| 111 | #define F_GETOWN 9 /* for sockets. */ |
| 112 | #endif |
| 113 | #ifndef F_SETSIG |
| 114 | #define F_SETSIG 10 /* for sockets. */ |
| 115 | #define F_GETSIG 11 /* for sockets. */ |
| 116 | #endif |
| 117 | |
| 118 | #ifndef F_GETLK64 |
| 119 | #define F_GETLK64 12 /* using 'struct flock64' */ |
| 120 | #define F_SETLK64 13 |
| 121 | #define F_SETLKW64 14 |
| 122 | #endif |
| 123 | |
| 124 | #ifndef F_SETOWN_EX |
| 125 | #define F_SETOWN_EX 15 |
| 126 | #define F_GETOWN_EX 16 |
| 127 | #endif |
| 128 | |
| 129 | #ifndef F_GETOWNER_UIDS |
| 130 | #define F_GETOWNER_UIDS 17 |
| 131 | #endif |
| 132 | |
| 133 | /* |
| 134 | * Open File Description Locks |
| 135 | * |
| 136 | * Usually record locks held by a process are released on *any* close and are |
| 137 | * not inherited across a fork(). |
| 138 | * |
| 139 | * These cmd values will set locks that conflict with process-associated |
| 140 | * record locks, but are "owned" by the open file description, not the |
| 141 | * process. This means that they are inherited across fork() like BSD (flock) |
| 142 | * locks, and they are only released automatically when the last reference to |
| 143 | * the the open file against which they were acquired is put. |
| 144 | */ |
| 145 | #define F_OFD_GETLK 36 |
| 146 | #define F_OFD_SETLK 37 |
| 147 | #define F_OFD_SETLKW 38 |
| 148 | |
| 149 | #define F_OWNER_TID 0 |
| 150 | #define F_OWNER_PID 1 |
| 151 | #define F_OWNER_PGRP 2 |
| 152 | |
| 153 | struct f_owner_ex { |
| 154 | int type; |
| 155 | __kernel_pid_t pid; |
| 156 | }; |
| 157 | |
| 158 | /* for F_[GET|SET]FL */ |
| 159 | #define FD_CLOEXEC 1 /* actually anything with low bit set goes */ |
| 160 | |
| 161 | /* for posix fcntl() and lockf() */ |
| 162 | #ifndef F_RDLCK |
| 163 | #define F_RDLCK 0 |
| 164 | #define F_WRLCK 1 |
| 165 | #define F_UNLCK 2 |
| 166 | #endif |
| 167 | |
| 168 | /* for old implementation of bsd flock () */ |
| 169 | #ifndef F_EXLCK |
| 170 | #define F_EXLCK 4 /* or 3 */ |
| 171 | #define F_SHLCK 8 /* or 4 */ |
| 172 | #endif |
| 173 | |
| 174 | /* operations for bsd flock(), also used by the kernel implementation */ |
| 175 | #define LOCK_SH 1 /* shared lock */ |
| 176 | #define LOCK_EX 2 /* exclusive lock */ |
| 177 | #define LOCK_NB 4 /* or'd with one of the above to prevent |
| 178 | blocking */ |
| 179 | #define LOCK_UN 8 /* remove lock */ |
| 180 | |
| 181 | /* |
| 182 | * LOCK_MAND support has been removed from the kernel. We leave the symbols |
| 183 | * here to not break legacy builds, but these should not be used in new code. |
| 184 | */ |
| 185 | #define LOCK_MAND 32 /* This is a mandatory flock ... */ |
| 186 | #define LOCK_READ 64 /* which allows concurrent read operations */ |
| 187 | #define LOCK_WRITE 128 /* which allows concurrent write operations */ |
| 188 | #define LOCK_RW 192 /* which allows concurrent read & write ops */ |
| 189 | |
| 190 | #define F_LINUX_SPECIFIC_BASE 1024 |
| 191 | |
| 192 | #ifndef HAVE_ARCH_STRUCT_FLOCK |
| 193 | struct flock { |
| 194 | short l_type; |
| 195 | short l_whence; |
| 196 | __kernel_off_t l_start; |
| 197 | __kernel_off_t l_len; |
| 198 | __kernel_pid_t l_pid; |
| 199 | #ifdef __ARCH_FLOCK_EXTRA_SYSID |
| 200 | __ARCH_FLOCK_EXTRA_SYSID |
| 201 | #endif |
| 202 | #ifdef __ARCH_FLOCK_PAD |
| 203 | __ARCH_FLOCK_PAD |
| 204 | #endif |
| 205 | }; |
| 206 | |
| 207 | struct flock64 { |
| 208 | short l_type; |
| 209 | short l_whence; |
| 210 | __kernel_loff_t l_start; |
| 211 | __kernel_loff_t l_len; |
| 212 | __kernel_pid_t l_pid; |
| 213 | #ifdef __ARCH_FLOCK64_PAD |
| 214 | __ARCH_FLOCK64_PAD |
| 215 | #endif |
| 216 | }; |
| 217 | #endif /* HAVE_ARCH_STRUCT_FLOCK */ |
| 218 | |
| 219 | #endif /* _ASM_GENERIC_FCNTL_H */ |
| 220 |
Warning: That file was not part of the compilation database. It may have many parsing errors.