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9317259e SR |
1 | #ifndef _ASM_GENERIC_FCNTL_H |
2 | #define _ASM_GENERIC_FCNTL_H | |
3 | ||
5ac353f9 SR |
4 | #include <linux/types.h> |
5 | ||
ecf081d1 EP |
6 | /* |
7 | * FMODE_EXEC is 0x20 | |
75069f2b | 8 | * FMODE_NONOTIFY is 0x4000000 |
ecf081d1 EP |
9 | * These cannot be used by userspace O_* until internal and external open |
10 | * flags are split. | |
11 | * -Eric Paris | |
12 | */ | |
13 | ||
454eedb8 WF |
14 | /* |
15 | * When introducing new O_* bits, please check its uniqueness in fcntl_init(). | |
16 | */ | |
17 | ||
e64ca97f SR |
18 | #define O_ACCMODE 00000003 |
19 | #define O_RDONLY 00000000 | |
20 | #define O_WRONLY 00000001 | |
21 | #define O_RDWR 00000002 | |
22 | #ifndef O_CREAT | |
23 | #define O_CREAT 00000100 /* not fcntl */ | |
24 | #endif | |
25 | #ifndef O_EXCL | |
26 | #define O_EXCL 00000200 /* not fcntl */ | |
27 | #endif | |
28 | #ifndef O_NOCTTY | |
29 | #define O_NOCTTY 00000400 /* not fcntl */ | |
30 | #endif | |
31 | #ifndef O_TRUNC | |
32 | #define O_TRUNC 00001000 /* not fcntl */ | |
33 | #endif | |
34 | #ifndef O_APPEND | |
35 | #define O_APPEND 00002000 | |
36 | #endif | |
37 | #ifndef O_NONBLOCK | |
38 | #define O_NONBLOCK 00004000 | |
39 | #endif | |
6b2f3d1f CH |
40 | #ifndef O_DSYNC |
41 | #define O_DSYNC 00010000 /* used to be O_SYNC, see below */ | |
e64ca97f SR |
42 | #endif |
43 | #ifndef FASYNC | |
44 | #define FASYNC 00020000 /* fcntl, for BSD compatibility */ | |
45 | #endif | |
46 | #ifndef O_DIRECT | |
47 | #define O_DIRECT 00040000 /* direct disk access hint */ | |
48 | #endif | |
49 | #ifndef O_LARGEFILE | |
50 | #define O_LARGEFILE 00100000 | |
51 | #endif | |
52 | #ifndef O_DIRECTORY | |
53 | #define O_DIRECTORY 00200000 /* must be a directory */ | |
54 | #endif | |
55 | #ifndef O_NOFOLLOW | |
56 | #define O_NOFOLLOW 00400000 /* don't follow links */ | |
57 | #endif | |
58 | #ifndef O_NOATIME | |
59 | #define O_NOATIME 01000000 | |
60 | #endif | |
f23513e8 UD |
61 | #ifndef O_CLOEXEC |
62 | #define O_CLOEXEC 02000000 /* set close_on_exec */ | |
63 | #endif | |
6b2f3d1f CH |
64 | |
65 | /* | |
76b7e005 | 66 | * Before Linux 2.6.33 only O_DSYNC semantics were implemented, but using |
6b2f3d1f CH |
67 | * the O_SYNC flag. We continue to use the existing numerical value |
68 | * for O_DSYNC semantics now, but using the correct symbolic name for it. | |
69 | * This new value is used to request true Posix O_SYNC semantics. It is | |
70 | * defined in this strange way to make sure applications compiled against | |
71 | * new headers get at least O_DSYNC semantics on older kernels. | |
72 | * | |
73 | * This has the nice side-effect that we can simply test for O_DSYNC | |
74 | * wherever we do not care if O_DSYNC or O_SYNC is used. | |
75 | * | |
76 | * Note: __O_SYNC must never be used directly. | |
77 | */ | |
78 | #ifndef O_SYNC | |
79 | #define __O_SYNC 04000000 | |
80 | #define O_SYNC (__O_SYNC|O_DSYNC) | |
81 | #endif | |
82 | ||
1abf0c71 AV |
83 | #ifndef O_PATH |
84 | #define O_PATH 010000000 | |
85 | #endif | |
86 | ||
bb458c64 AV |
87 | #ifndef __O_TMPFILE |
88 | #define __O_TMPFILE 020000000 | |
60545d0d AV |
89 | #endif |
90 | ||
bb458c64 | 91 | /* a horrid kludge trying to make sure that this will fail on old kernels */ |
ba57ea64 AV |
92 | #define O_TMPFILE (__O_TMPFILE | O_DIRECTORY) |
93 | #define O_TMPFILE_MASK (__O_TMPFILE | O_DIRECTORY | O_CREAT) | |
bb458c64 | 94 | |
e64ca97f SR |
95 | #ifndef O_NDELAY |
96 | #define O_NDELAY O_NONBLOCK | |
97 | #endif | |
9317259e SR |
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 */ | |
1abf62af SR |
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 | |
71ccb83c PZ |
117 | |
118 | #ifndef CONFIG_64BIT | |
119 | #ifndef F_GETLK64 | |
120 | #define F_GETLK64 12 /* using 'struct flock64' */ | |
121 | #define F_SETLK64 13 | |
122 | #define F_SETLKW64 14 | |
123 | #endif | |
124 | #endif | |
125 | ||
ba0a6c9f | 126 | #ifndef F_SETOWN_EX |
71ccb83c PZ |
127 | #define F_SETOWN_EX 15 |
128 | #define F_GETOWN_EX 16 | |
ba0a6c9f PZ |
129 | #endif |
130 | ||
1d151c33 CG |
131 | #ifndef F_GETOWNER_UIDS |
132 | #define F_GETOWNER_UIDS 17 | |
133 | #endif | |
134 | ||
5d50ffd7 | 135 | /* |
0d3f7a2d | 136 | * Open File Description Locks |
5d50ffd7 | 137 | * |
0d3f7a2d | 138 | * Usually record locks held by a process are released on *any* close and are |
5d50ffd7 JL |
139 | * not inherited across a fork(). |
140 | * | |
0d3f7a2d JL |
141 | * These cmd values will set locks that conflict with process-associated |
142 | * record locks, but are "owned" by the open file description, not the | |
143 | * process. This means that they are inherited across fork() like BSD (flock) | |
144 | * locks, and they are only released automatically when the last reference to | |
145 | * the the open file against which they were acquired is put. | |
5d50ffd7 | 146 | */ |
0d3f7a2d JL |
147 | #define F_OFD_GETLK 36 |
148 | #define F_OFD_SETLK 37 | |
149 | #define F_OFD_SETLKW 38 | |
5d50ffd7 | 150 | |
ba0a6c9f PZ |
151 | #define F_OWNER_TID 0 |
152 | #define F_OWNER_PID 1 | |
978b4053 | 153 | #define F_OWNER_PGRP 2 |
ba0a6c9f PZ |
154 | |
155 | struct f_owner_ex { | |
156 | int type; | |
269b8fd5 | 157 | __kernel_pid_t pid; |
ba0a6c9f | 158 | }; |
9317259e SR |
159 | |
160 | /* for F_[GET|SET]FL */ | |
161 | #define FD_CLOEXEC 1 /* actually anything with low bit set goes */ | |
162 | ||
1abf62af SR |
163 | /* for posix fcntl() and lockf() */ |
164 | #ifndef F_RDLCK | |
165 | #define F_RDLCK 0 | |
166 | #define F_WRLCK 1 | |
167 | #define F_UNLCK 2 | |
168 | #endif | |
169 | ||
170 | /* for old implementation of bsd flock () */ | |
171 | #ifndef F_EXLCK | |
172 | #define F_EXLCK 4 /* or 3 */ | |
173 | #define F_SHLCK 8 /* or 4 */ | |
174 | #endif | |
175 | ||
9317259e SR |
176 | /* operations for bsd flock(), also used by the kernel implementation */ |
177 | #define LOCK_SH 1 /* shared lock */ | |
178 | #define LOCK_EX 2 /* exclusive lock */ | |
179 | #define LOCK_NB 4 /* or'd with one of the above to prevent | |
180 | blocking */ | |
181 | #define LOCK_UN 8 /* remove lock */ | |
182 | ||
183 | #define LOCK_MAND 32 /* This is a mandatory flock ... */ | |
184 | #define LOCK_READ 64 /* which allows concurrent read operations */ | |
185 | #define LOCK_WRITE 128 /* which allows concurrent write operations */ | |
186 | #define LOCK_RW 192 /* which allows concurrent read & write ops */ | |
187 | ||
188 | #define F_LINUX_SPECIFIC_BASE 1024 | |
189 | ||
5ac353f9 SR |
190 | #ifndef HAVE_ARCH_STRUCT_FLOCK |
191 | #ifndef __ARCH_FLOCK_PAD | |
192 | #define __ARCH_FLOCK_PAD | |
193 | #endif | |
194 | ||
195 | struct flock { | |
196 | short l_type; | |
197 | short l_whence; | |
85efde6f AB |
198 | __kernel_off_t l_start; |
199 | __kernel_off_t l_len; | |
200 | __kernel_pid_t l_pid; | |
5ac353f9 SR |
201 | __ARCH_FLOCK_PAD |
202 | }; | |
203 | #endif | |
204 | ||
8d286aa5 SR |
205 | #ifndef HAVE_ARCH_STRUCT_FLOCK64 |
206 | #ifndef __ARCH_FLOCK64_PAD | |
207 | #define __ARCH_FLOCK64_PAD | |
208 | #endif | |
209 | ||
210 | struct flock64 { | |
211 | short l_type; | |
212 | short l_whence; | |
85efde6f AB |
213 | __kernel_loff_t l_start; |
214 | __kernel_loff_t l_len; | |
215 | __kernel_pid_t l_pid; | |
8d286aa5 SR |
216 | __ARCH_FLOCK64_PAD |
217 | }; | |
218 | #endif | |
8d286aa5 | 219 | |
9317259e | 220 | #endif /* _ASM_GENERIC_FCNTL_H */ |