xref: /freebsd/sys/sys/stat.h (revision 29363fb4)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 1982, 1986, 1989, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  * (c) UNIX System Laboratories, Inc.
7  * All or some portions of this file are derived from material licensed
8  * to the University of California by American Telephone and Telegraph
9  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10  * the permission of UNIX System Laboratories, Inc.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  * 3. Neither the name of the University nor the names of its contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  */
36 
37 #ifndef _SYS_STAT_H_
38 #define	_SYS_STAT_H_
39 
40 #include <sys/cdefs.h>
41 #include <sys/_timespec.h>
42 #include <sys/_types.h>
43 
44 #ifndef _BLKSIZE_T_DECLARED
45 typedef	__blksize_t	blksize_t;
46 #define	_BLKSIZE_T_DECLARED
47 #endif
48 
49 #ifndef _BLKCNT_T_DECLARED
50 typedef	__blkcnt_t	blkcnt_t;
51 #define	_BLKCNT_T_DECLARED
52 #endif
53 
54 #ifndef _DEV_T_DECLARED
55 typedef	__dev_t		dev_t;
56 #define	_DEV_T_DECLARED
57 #endif
58 
59 #ifndef _FFLAGS_T_DECLARED
60 typedef	__fflags_t	fflags_t;
61 #define	_FFLAGS_T_DECLARED
62 #endif
63 
64 #ifndef _GID_T_DECLARED
65 typedef	__gid_t		gid_t;
66 #define	_GID_T_DECLARED
67 #endif
68 
69 #ifndef _INO_T_DECLARED
70 typedef	__ino_t		ino_t;
71 #define	_INO_T_DECLARED
72 #endif
73 
74 #ifndef _MODE_T_DECLARED
75 typedef	__mode_t	mode_t;
76 #define	_MODE_T_DECLARED
77 #endif
78 
79 #ifndef _NLINK_T_DECLARED
80 typedef	__nlink_t	nlink_t;
81 #define	_NLINK_T_DECLARED
82 #endif
83 
84 #ifndef _OFF_T_DECLARED
85 typedef	__off_t		off_t;
86 #define	_OFF_T_DECLARED
87 #endif
88 
89 #ifndef _UID_T_DECLARED
90 typedef	__uid_t		uid_t;
91 #define	_UID_T_DECLARED
92 #endif
93 
94 #if !defined(_KERNEL) && __BSD_VISIBLE
95 /*
96  * XXX We get miscellaneous namespace pollution with this.
97  */
98 #include <sys/time.h>
99 #endif
100 
101 #ifdef _KERNEL
102 struct ostat {
103 	__uint16_t st_dev;		/* inode's device */
104 	__uint32_t st_ino;		/* inode's number */
105 	mode_t	  st_mode;		/* inode protection mode */
106 	__uint16_t st_nlink;		/* number of hard links */
107 	__uint16_t st_uid;		/* user ID of the file's owner */
108 	__uint16_t st_gid;		/* group ID of the file's group */
109 	__uint16_t st_rdev;		/* device type */
110 	__int32_t st_size;		/* file size, in bytes */
111 	struct	timespec st_atim;	/* time of last access */
112 	struct	timespec st_mtim;	/* time of last data modification */
113 	struct	timespec st_ctim;	/* time of last file status change */
114 	__int32_t st_blksize;		/* optimal blocksize for I/O */
115 	__int32_t st_blocks;		/* blocks allocated for file */
116 	fflags_t  st_flags;		/* user defined flags for file */
117 	__uint32_t st_gen;		/* file generation number */
118 };
119 #endif
120 
121 #if defined(_WANT_FREEBSD11_STAT) || defined(_KERNEL)
122 struct freebsd11_stat {
123 	__uint32_t st_dev;		/* inode's device */
124 	__uint32_t st_ino;		/* inode's number */
125 	mode_t	  st_mode;		/* inode protection mode */
126 	__uint16_t st_nlink;		/* number of hard links */
127 	uid_t	  st_uid;		/* user ID of the file's owner */
128 	gid_t	  st_gid;		/* group ID of the file's group */
129 	__uint32_t st_rdev;		/* device type */
130 	struct	timespec st_atim;	/* time of last access */
131 	struct	timespec st_mtim;	/* time of last data modification */
132 	struct	timespec st_ctim;	/* time of last file status change */
133 	off_t	  st_size;		/* file size, in bytes */
134 	blkcnt_t st_blocks;		/* blocks allocated for file */
135 	blksize_t st_blksize;		/* optimal blocksize for I/O */
136 	fflags_t  st_flags;		/* user defined flags for file */
137 	__uint32_t st_gen;		/* file generation number */
138 	__int32_t st_lspare;
139 	struct timespec st_birthtim;	/* time of file creation */
140 	/*
141 	 * Explicitly pad st_birthtim to 16 bytes so that the size of
142 	 * struct stat is backwards compatible.  We use bitfields instead
143 	 * of an array of chars so that this doesn't require a C99 compiler
144 	 * to compile if the size of the padding is 0.  We use 2 bitfields
145 	 * to cover up to 64 bits on 32-bit machines.  We assume that
146 	 * CHAR_BIT is 8...
147 	 */
148 	unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec));
149 	unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec));
150 };
151 #endif /* _WANT_FREEBSD11_STAT || _KERNEL */
152 
153 #if defined(__i386__)
154 #define	__STAT_TIME_T_EXT	1
155 #endif
156 
157 struct stat {
158 	dev_t     st_dev;		/* inode's device */
159 	ino_t	  st_ino;		/* inode's number */
160 	nlink_t	  st_nlink;		/* number of hard links */
161 	mode_t	  st_mode;		/* inode protection mode */
162 	__int16_t st_padding0;
163 	uid_t	  st_uid;		/* user ID of the file's owner */
164 	gid_t	  st_gid;		/* group ID of the file's group */
165 	__int32_t st_padding1;
166 	dev_t     st_rdev;		/* device type */
167 #ifdef	__STAT_TIME_T_EXT
168 	__int32_t st_atim_ext;
169 #endif
170 	struct	timespec st_atim;	/* time of last access */
171 #ifdef	__STAT_TIME_T_EXT
172 	__int32_t st_mtim_ext;
173 #endif
174 	struct	timespec st_mtim;	/* time of last data modification */
175 #ifdef	__STAT_TIME_T_EXT
176 	__int32_t st_ctim_ext;
177 #endif
178 	struct	timespec st_ctim;	/* time of last file status change */
179 #ifdef	__STAT_TIME_T_EXT
180 	__int32_t st_btim_ext;
181 #endif
182 	struct	timespec st_birthtim;	/* time of file creation */
183 	off_t	  st_size;		/* file size, in bytes */
184 	blkcnt_t st_blocks;		/* blocks allocated for file */
185 	blksize_t st_blksize;		/* optimal blocksize for I/O */
186 	fflags_t  st_flags;		/* user defined flags for file */
187 	__uint64_t st_gen;		/* file generation number */
188 	__uint64_t st_spare[10];
189 };
190 
191 #ifdef _KERNEL
192 struct nstat {
193 	__uint32_t st_dev;		/* inode's device */
194 	__uint32_t st_ino;		/* inode's number */
195 	__uint32_t st_mode;		/* inode protection mode */
196 	__uint32_t st_nlink;		/* number of hard links */
197 	uid_t	  st_uid;		/* user ID of the file's owner */
198 	gid_t	  st_gid;		/* group ID of the file's group */
199 	__uint32_t st_rdev;		/* device type */
200 	struct	timespec st_atim;	/* time of last access */
201 	struct	timespec st_mtim;	/* time of last data modification */
202 	struct	timespec st_ctim;	/* time of last file status change */
203 	off_t	  st_size;		/* file size, in bytes */
204 	blkcnt_t st_blocks;		/* blocks allocated for file */
205 	blksize_t st_blksize;		/* optimal blocksize for I/O */
206 	fflags_t  st_flags;		/* user defined flags for file */
207 	__uint32_t st_gen;		/* file generation number */
208 	struct timespec st_birthtim;	/* time of file creation */
209 	/*
210 	 * See comment in the definition of struct freebsd11_stat
211 	 * above about the following padding.
212 	 */
213 	unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec));
214 	unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec));
215 };
216 #endif
217 
218 #ifndef _KERNEL
219 #define	st_atime		st_atim.tv_sec
220 #define	st_mtime		st_mtim.tv_sec
221 #define	st_ctime		st_ctim.tv_sec
222 #if __BSD_VISIBLE
223 #define	st_birthtime		st_birthtim.tv_sec
224 #define	st_atimensec		st_atim.tv_nsec
225 #define	st_mtimensec		st_mtim.tv_nsec
226 #define	st_ctimensec		st_ctim.tv_nsec
227 #define	st_birthtimensec	st_birthtim.tv_nsec
228 #endif
229 
230 /* For compatibility. */
231 #if __BSD_VISIBLE
232 #define	st_atimespec		st_atim
233 #define	st_mtimespec		st_mtim
234 #define	st_ctimespec		st_ctim
235 #define	st_birthtimespec	st_birthtim
236 #endif
237 #endif /* !_KERNEL */
238 
239 #define	S_ISUID	0004000			/* set user id on execution */
240 #define	S_ISGID	0002000			/* set group id on execution */
241 #if __BSD_VISIBLE
242 #define	S_ISTXT	0001000			/* sticky bit */
243 #endif
244 
245 #define	S_IRWXU	0000700			/* RWX mask for owner */
246 #define	S_IRUSR	0000400			/* R for owner */
247 #define	S_IWUSR	0000200			/* W for owner */
248 #define	S_IXUSR	0000100			/* X for owner */
249 
250 #if __BSD_VISIBLE
251 #define	S_IREAD		S_IRUSR
252 #define	S_IWRITE	S_IWUSR
253 #define	S_IEXEC		S_IXUSR
254 #endif
255 
256 #define	S_IRWXG	0000070			/* RWX mask for group */
257 #define	S_IRGRP	0000040			/* R for group */
258 #define	S_IWGRP	0000020			/* W for group */
259 #define	S_IXGRP	0000010			/* X for group */
260 
261 #define	S_IRWXO	0000007			/* RWX mask for other */
262 #define	S_IROTH	0000004			/* R for other */
263 #define	S_IWOTH	0000002			/* W for other */
264 #define	S_IXOTH	0000001			/* X for other */
265 
266 #if __XSI_VISIBLE
267 #define	S_IFMT	 0170000		/* type of file mask */
268 #define	S_IFIFO	 0010000		/* named pipe (fifo) */
269 #define	S_IFCHR	 0020000		/* character special */
270 #define	S_IFDIR	 0040000		/* directory */
271 #define	S_IFBLK	 0060000		/* block special */
272 #define	S_IFREG	 0100000		/* regular */
273 #define	S_IFLNK	 0120000		/* symbolic link */
274 #define	S_IFSOCK 0140000		/* socket */
275 #define	S_ISVTX	 0001000		/* save swapped text even after use */
276 #endif
277 #if __BSD_VISIBLE
278 #define	S_IFWHT  0160000		/* whiteout */
279 #endif
280 
281 #define	S_ISDIR(m)	(((m) & 0170000) == 0040000)	/* directory */
282 #define	S_ISCHR(m)	(((m) & 0170000) == 0020000)	/* char special */
283 #define	S_ISBLK(m)	(((m) & 0170000) == 0060000)	/* block special */
284 #define	S_ISREG(m)	(((m) & 0170000) == 0100000)	/* regular file */
285 #define	S_ISFIFO(m)	(((m) & 0170000) == 0010000)	/* fifo or socket */
286 #if __POSIX_VISIBLE >= 200112
287 #define	S_ISLNK(m)	(((m) & 0170000) == 0120000)	/* symbolic link */
288 #define	S_ISSOCK(m)	(((m) & 0170000) == 0140000)	/* socket */
289 #endif
290 #if __BSD_VISIBLE
291 #define	S_ISWHT(m)	(((m) & 0170000) == 0160000)	/* whiteout */
292 #endif
293 
294 #if __BSD_VISIBLE
295 #define	ACCESSPERMS	(S_IRWXU|S_IRWXG|S_IRWXO)	/* 0777 */
296 							/* 7777 */
297 #define	ALLPERMS	(S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
298 							/* 0666 */
299 #define	DEFFILEMODE	(S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
300 
301 #define S_BLKSIZE	512		/* block size used in the stat struct */
302 
303 /*
304  * Definitions of flags stored in file flags word.
305  *
306  * Super-user and owner changeable flags.
307  */
308 #define	UF_SETTABLE	0x0000ffff	/* mask of owner changeable flags */
309 #define	UF_NODUMP	0x00000001	/* do not dump file */
310 #define	UF_IMMUTABLE	0x00000002	/* file may not be changed */
311 #define	UF_APPEND	0x00000004	/* writes to file may only append */
312 #define	UF_OPAQUE	0x00000008	/* directory is opaque wrt. union */
313 #define	UF_NOUNLINK	0x00000010	/* file may not be removed or renamed */
314 /*
315  * These two bits are defined in MacOS X.  They are not currently used in
316  * FreeBSD.
317  */
318 #if 0
319 #define	UF_COMPRESSED	0x00000020	/* file is compressed */
320 #define	UF_TRACKED	0x00000040	/* renames and deletes are tracked */
321 #endif
322 
323 #define	UF_SYSTEM	0x00000080	/* Windows system file bit */
324 #define	UF_SPARSE	0x00000100	/* sparse file */
325 #define	UF_OFFLINE	0x00000200	/* file is offline */
326 #define	UF_REPARSE	0x00000400	/* Windows reparse point file bit */
327 #define	UF_ARCHIVE	0x00000800	/* file needs to be archived */
328 #define	UF_READONLY	0x00001000	/* Windows readonly file bit */
329 /* This is the same as the MacOS X definition of UF_HIDDEN. */
330 #define	UF_HIDDEN	0x00008000	/* file is hidden */
331 
332 /*
333  * Super-user changeable flags.
334  */
335 #define	SF_SETTABLE	0xffff0000	/* mask of superuser changeable flags */
336 #define	SF_ARCHIVED	0x00010000	/* file is archived */
337 #define	SF_IMMUTABLE	0x00020000	/* file may not be changed */
338 #define	SF_APPEND	0x00040000	/* writes to file may only append */
339 #define	SF_NOUNLINK	0x00100000	/* file may not be removed or renamed */
340 #define	SF_SNAPSHOT	0x00200000	/* snapshot inode */
341 
342 #ifdef _KERNEL
343 /*
344  * Shorthand abbreviations of above.
345  */
346 #define	OPAQUE		(UF_OPAQUE)
347 #define	APPEND		(UF_APPEND | SF_APPEND)
348 #define	IMMUTABLE	(UF_IMMUTABLE | SF_IMMUTABLE)
349 #define	NOUNLINK	(UF_NOUNLINK | SF_NOUNLINK)
350 #endif
351 
352 #endif /* __BSD_VISIBLE */
353 
354 #if __POSIX_VISIBLE >= 200809
355 #define	UTIME_NOW	-1
356 #define	UTIME_OMIT	-2
357 #endif
358 
359 #ifndef _KERNEL
360 __BEGIN_DECLS
361 #if __BSD_VISIBLE
362 int	chflags(const char *, unsigned long);
363 int	chflagsat(int, const char *, unsigned long, int);
364 #endif
365 int	chmod(const char *, mode_t);
366 #if __BSD_VISIBLE
367 int	fchflags(int, unsigned long);
368 #endif
369 #if __POSIX_VISIBLE >= 200112
370 int	fchmod(int, mode_t);
371 #endif
372 #if __POSIX_VISIBLE >= 200809
373 int	fchmodat(int, const char *, mode_t, int);
374 int	futimens(int fd, const struct timespec times[2]);
375 int	utimensat(int fd, const char *path, const struct timespec times[2],
376 		int flag);
377 #endif
378 int	fstat(int, struct stat *);
379 #if __BSD_VISIBLE
380 int	lchflags(const char *, unsigned long);
381 int	lchmod(const char *, mode_t);
382 #endif
383 #if __POSIX_VISIBLE >= 200112
384 int	lstat(const char * __restrict, struct stat * __restrict);
385 #endif
386 int	mkdir(const char *, mode_t);
387 int	mkfifo(const char *, mode_t);
388 #if !defined(_MKNOD_DECLARED) && __XSI_VISIBLE
389 int	mknod(const char *, mode_t, dev_t);
390 #define	_MKNOD_DECLARED
391 #endif
392 int	stat(const char * __restrict, struct stat * __restrict);
393 mode_t	umask(mode_t);
394 #if __POSIX_VISIBLE >= 200809
395 int	fstatat(int, const char *, struct stat *, int);
396 int	mkdirat(int, const char *, mode_t);
397 int	mkfifoat(int, const char *, mode_t);
398 #endif
399 #if __XSI_VISIBLE >= 700
400 int	mknodat(int, const char *, mode_t, dev_t);
401 #endif
402 __END_DECLS
403 #endif /* !_KERNEL */
404 
405 #endif /* !_SYS_STAT_H_ */
406