xref: /freebsd/sys/sys/stat.h (revision 780fb4a2)
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  *	@(#)stat.h	8.12 (Berkeley) 6/16/95
37  * $FreeBSD$
38  */
39 
40 #ifndef _SYS_STAT_H_
41 #define	_SYS_STAT_H_
42 
43 #include <sys/cdefs.h>
44 #include <sys/_timespec.h>
45 #include <sys/_types.h>
46 
47 #ifndef _BLKSIZE_T_DECLARED
48 typedef	__blksize_t	blksize_t;
49 #define	_BLKSIZE_T_DECLARED
50 #endif
51 
52 #ifndef _BLKCNT_T_DECLARED
53 typedef	__blkcnt_t	blkcnt_t;
54 #define	_BLKCNT_T_DECLARED
55 #endif
56 
57 #ifndef _DEV_T_DECLARED
58 typedef	__dev_t		dev_t;
59 #define	_DEV_T_DECLARED
60 #endif
61 
62 #ifndef _FFLAGS_T_DECLARED
63 typedef	__fflags_t	fflags_t;
64 #define	_FFLAGS_T_DECLARED
65 #endif
66 
67 #ifndef _GID_T_DECLARED
68 typedef	__gid_t		gid_t;
69 #define	_GID_T_DECLARED
70 #endif
71 
72 #ifndef _INO_T_DECLARED
73 typedef	__ino_t		ino_t;
74 #define	_INO_T_DECLARED
75 #endif
76 
77 #ifndef _MODE_T_DECLARED
78 typedef	__mode_t	mode_t;
79 #define	_MODE_T_DECLARED
80 #endif
81 
82 #ifndef _NLINK_T_DECLARED
83 typedef	__nlink_t	nlink_t;
84 #define	_NLINK_T_DECLARED
85 #endif
86 
87 #ifndef _OFF_T_DECLARED
88 typedef	__off_t		off_t;
89 #define	_OFF_T_DECLARED
90 #endif
91 
92 #ifndef _UID_T_DECLARED
93 typedef	__uid_t		uid_t;
94 #define	_UID_T_DECLARED
95 #endif
96 
97 #if !defined(_KERNEL) && __BSD_VISIBLE
98 /*
99  * XXX We get miscellaneous namespace pollution with this.
100  */
101 #include <sys/time.h>
102 #endif
103 
104 #ifdef _KERNEL
105 struct ostat {
106 	__uint16_t st_dev;		/* inode's device */
107 	__uint32_t st_ino;		/* inode's number */
108 	mode_t	  st_mode;		/* inode protection mode */
109 	__uint16_t st_nlink;		/* number of hard links */
110 	__uint16_t st_uid;		/* user ID of the file's owner */
111 	__uint16_t st_gid;		/* group ID of the file's group */
112 	__uint16_t st_rdev;		/* device type */
113 	__int32_t st_size;		/* file size, in bytes */
114 	struct	timespec st_atim;	/* time of last access */
115 	struct	timespec st_mtim;	/* time of last data modification */
116 	struct	timespec st_ctim;	/* time of last file status change */
117 	__int32_t st_blksize;		/* optimal blocksize for I/O */
118 	__int32_t st_blocks;		/* blocks allocated for file */
119 	fflags_t  st_flags;		/* user defined flags for file */
120 	__uint32_t st_gen;		/* file generation number */
121 };
122 #endif
123 
124 #if defined(_WANT_FREEBSD11_STAT) || defined(_KERNEL)
125 struct freebsd11_stat {
126 	__uint32_t st_dev;		/* inode's device */
127 	__uint32_t st_ino;		/* inode's number */
128 	mode_t	  st_mode;		/* inode protection mode */
129 	__uint16_t st_nlink;		/* number of hard links */
130 	uid_t	  st_uid;		/* user ID of the file's owner */
131 	gid_t	  st_gid;		/* group ID of the file's group */
132 	__uint32_t st_rdev;		/* device type */
133 	struct	timespec st_atim;	/* time of last access */
134 	struct	timespec st_mtim;	/* time of last data modification */
135 	struct	timespec st_ctim;	/* time of last file status change */
136 	off_t	  st_size;		/* file size, in bytes */
137 	blkcnt_t st_blocks;		/* blocks allocated for file */
138 	blksize_t st_blksize;		/* optimal blocksize for I/O */
139 	fflags_t  st_flags;		/* user defined flags for file */
140 	__uint32_t st_gen;		/* file generation number */
141 	__int32_t st_lspare;
142 	struct timespec st_birthtim;	/* time of file creation */
143 	/*
144 	 * Explicitly pad st_birthtim to 16 bytes so that the size of
145 	 * struct stat is backwards compatible.  We use bitfields instead
146 	 * of an array of chars so that this doesn't require a C99 compiler
147 	 * to compile if the size of the padding is 0.  We use 2 bitfields
148 	 * to cover up to 64 bits on 32-bit machines.  We assume that
149 	 * CHAR_BIT is 8...
150 	 */
151 	unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec));
152 	unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec));
153 };
154 #endif /* _WANT_FREEBSD11_STAT || _KERNEL */
155 
156 #if defined(__i386__)
157 #define	__STAT_TIME_T_EXT	1
158 #endif
159 
160 struct stat {
161 	dev_t     st_dev;		/* inode's device */
162 	ino_t	  st_ino;		/* inode's number */
163 	nlink_t	  st_nlink;		/* number of hard links */
164 	mode_t	  st_mode;		/* inode protection mode */
165 	__int16_t st_padding0;
166 	uid_t	  st_uid;		/* user ID of the file's owner */
167 	gid_t	  st_gid;		/* group ID of the file's group */
168 	__int32_t st_padding1;
169 	dev_t     st_rdev;		/* device type */
170 #ifdef	__STAT_TIME_T_EXT
171 	__int32_t st_atim_ext;
172 #endif
173 	struct	timespec st_atim;	/* time of last access */
174 #ifdef	__STAT_TIME_T_EXT
175 	__int32_t st_mtim_ext;
176 #endif
177 	struct	timespec st_mtim;	/* time of last data modification */
178 #ifdef	__STAT_TIME_T_EXT
179 	__int32_t st_ctim_ext;
180 #endif
181 	struct	timespec st_ctim;	/* time of last file status change */
182 #ifdef	__STAT_TIME_T_EXT
183 	__int32_t st_btim_ext;
184 #endif
185 	struct	timespec st_birthtim;	/* time of file creation */
186 	off_t	  st_size;		/* file size, in bytes */
187 	blkcnt_t st_blocks;		/* blocks allocated for file */
188 	blksize_t st_blksize;		/* optimal blocksize for I/O */
189 	fflags_t  st_flags;		/* user defined flags for file */
190 	__uint64_t st_gen;		/* file generation number */
191 	__uint64_t st_spare[10];
192 };
193 
194 #ifdef _KERNEL
195 struct nstat {
196 	__uint32_t st_dev;		/* inode's device */
197 	__uint32_t st_ino;		/* inode's number */
198 	__uint32_t st_mode;		/* inode protection mode */
199 	__uint32_t st_nlink;		/* number of hard links */
200 	uid_t	  st_uid;		/* user ID of the file's owner */
201 	gid_t	  st_gid;		/* group ID of the file's group */
202 	__uint32_t st_rdev;		/* device type */
203 	struct	timespec st_atim;	/* time of last access */
204 	struct	timespec st_mtim;	/* time of last data modification */
205 	struct	timespec st_ctim;	/* time of last file status change */
206 	off_t	  st_size;		/* file size, in bytes */
207 	blkcnt_t st_blocks;		/* blocks allocated for file */
208 	blksize_t st_blksize;		/* optimal blocksize for I/O */
209 	fflags_t  st_flags;		/* user defined flags for file */
210 	__uint32_t st_gen;		/* file generation number */
211 	struct timespec st_birthtim;	/* time of file creation */
212 	/*
213 	 * See comment in the definition of struct freebsd11_stat
214 	 * above about the following padding.
215 	 */
216 	unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec));
217 	unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec));
218 };
219 #endif
220 
221 #ifndef _KERNEL
222 #define	st_atime		st_atim.tv_sec
223 #define	st_mtime		st_mtim.tv_sec
224 #define	st_ctime		st_ctim.tv_sec
225 #if __BSD_VISIBLE
226 #define	st_birthtime		st_birthtim.tv_sec
227 #endif
228 
229 /* For compatibility. */
230 #if __BSD_VISIBLE
231 #define	st_atimespec		st_atim
232 #define	st_mtimespec		st_mtim
233 #define	st_ctimespec		st_ctim
234 #define	st_birthtimespec	st_birthtim
235 #endif
236 #endif /* !_KERNEL */
237 
238 #define	S_ISUID	0004000			/* set user id on execution */
239 #define	S_ISGID	0002000			/* set group id on execution */
240 #if __BSD_VISIBLE
241 #define	S_ISTXT	0001000			/* sticky bit */
242 #endif
243 
244 #define	S_IRWXU	0000700			/* RWX mask for owner */
245 #define	S_IRUSR	0000400			/* R for owner */
246 #define	S_IWUSR	0000200			/* W for owner */
247 #define	S_IXUSR	0000100			/* X for owner */
248 
249 #if __BSD_VISIBLE
250 #define	S_IREAD		S_IRUSR
251 #define	S_IWRITE	S_IWUSR
252 #define	S_IEXEC		S_IXUSR
253 #endif
254 
255 #define	S_IRWXG	0000070			/* RWX mask for group */
256 #define	S_IRGRP	0000040			/* R for group */
257 #define	S_IWGRP	0000020			/* W for group */
258 #define	S_IXGRP	0000010			/* X for group */
259 
260 #define	S_IRWXO	0000007			/* RWX mask for other */
261 #define	S_IROTH	0000004			/* R for other */
262 #define	S_IWOTH	0000002			/* W for other */
263 #define	S_IXOTH	0000001			/* X for other */
264 
265 #if __XSI_VISIBLE
266 #define	S_IFMT	 0170000		/* type of file mask */
267 #define	S_IFIFO	 0010000		/* named pipe (fifo) */
268 #define	S_IFCHR	 0020000		/* character special */
269 #define	S_IFDIR	 0040000		/* directory */
270 #define	S_IFBLK	 0060000		/* block special */
271 #define	S_IFREG	 0100000		/* regular */
272 #define	S_IFLNK	 0120000		/* symbolic link */
273 #define	S_IFSOCK 0140000		/* socket */
274 #define	S_ISVTX	 0001000		/* save swapped text even after use */
275 #endif
276 #if __BSD_VISIBLE
277 #define	S_IFWHT  0160000		/* whiteout */
278 #endif
279 
280 #define	S_ISDIR(m)	(((m) & 0170000) == 0040000)	/* directory */
281 #define	S_ISCHR(m)	(((m) & 0170000) == 0020000)	/* char special */
282 #define	S_ISBLK(m)	(((m) & 0170000) == 0060000)	/* block special */
283 #define	S_ISREG(m)	(((m) & 0170000) == 0100000)	/* regular file */
284 #define	S_ISFIFO(m)	(((m) & 0170000) == 0010000)	/* fifo or socket */
285 #if __POSIX_VISIBLE >= 200112
286 #define	S_ISLNK(m)	(((m) & 0170000) == 0120000)	/* symbolic link */
287 #define	S_ISSOCK(m)	(((m) & 0170000) == 0140000)	/* socket */
288 #endif
289 #if __BSD_VISIBLE
290 #define	S_ISWHT(m)	(((m) & 0170000) == 0160000)	/* whiteout */
291 #endif
292 
293 #if __BSD_VISIBLE
294 #define	ACCESSPERMS	(S_IRWXU|S_IRWXG|S_IRWXO)	/* 0777 */
295 							/* 7777 */
296 #define	ALLPERMS	(S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
297 							/* 0666 */
298 #define	DEFFILEMODE	(S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
299 
300 #define S_BLKSIZE	512		/* block size used in the stat struct */
301 
302 /*
303  * Definitions of flags stored in file flags word.
304  *
305  * Super-user and owner changeable flags.
306  */
307 #define	UF_SETTABLE	0x0000ffff	/* mask of owner changeable flags */
308 #define	UF_NODUMP	0x00000001	/* do not dump file */
309 #define	UF_IMMUTABLE	0x00000002	/* file may not be changed */
310 #define	UF_APPEND	0x00000004	/* writes to file may only append */
311 #define	UF_OPAQUE	0x00000008	/* directory is opaque wrt. union */
312 #define	UF_NOUNLINK	0x00000010	/* file may not be removed or renamed */
313 /*
314  * These two bits are defined in MacOS X.  They are not currently used in
315  * FreeBSD.
316  */
317 #if 0
318 #define	UF_COMPRESSED	0x00000020	/* file is compressed */
319 #define	UF_TRACKED	0x00000040	/* renames and deletes are tracked */
320 #endif
321 
322 #define	UF_SYSTEM	0x00000080	/* Windows system file bit */
323 #define	UF_SPARSE	0x00000100	/* sparse file */
324 #define	UF_OFFLINE	0x00000200	/* file is offline */
325 #define	UF_REPARSE	0x00000400	/* Windows reparse point file bit */
326 #define	UF_ARCHIVE	0x00000800	/* file needs to be archived */
327 #define	UF_READONLY	0x00001000	/* Windows readonly file bit */
328 /* This is the same as the MacOS X definition of UF_HIDDEN. */
329 #define	UF_HIDDEN	0x00008000	/* file is hidden */
330 
331 /*
332  * Super-user changeable flags.
333  */
334 #define	SF_SETTABLE	0xffff0000	/* mask of superuser changeable flags */
335 #define	SF_ARCHIVED	0x00010000	/* file is archived */
336 #define	SF_IMMUTABLE	0x00020000	/* file may not be changed */
337 #define	SF_APPEND	0x00040000	/* writes to file may only append */
338 #define	SF_NOUNLINK	0x00100000	/* file may not be removed or renamed */
339 #define	SF_SNAPSHOT	0x00200000	/* snapshot inode */
340 
341 #ifdef _KERNEL
342 /*
343  * Shorthand abbreviations of above.
344  */
345 #define	OPAQUE		(UF_OPAQUE)
346 #define	APPEND		(UF_APPEND | SF_APPEND)
347 #define	IMMUTABLE	(UF_IMMUTABLE | SF_IMMUTABLE)
348 #define	NOUNLINK	(UF_NOUNLINK | SF_NOUNLINK)
349 #endif
350 
351 #endif /* __BSD_VISIBLE */
352 
353 #if __POSIX_VISIBLE >= 200809
354 #define	UTIME_NOW	-1
355 #define	UTIME_OMIT	-2
356 #endif
357 
358 #ifndef _KERNEL
359 __BEGIN_DECLS
360 #if __BSD_VISIBLE
361 int	chflags(const char *, unsigned long);
362 int	chflagsat(int, const char *, unsigned long, int);
363 #endif
364 int	chmod(const char *, mode_t);
365 #if __BSD_VISIBLE
366 int	fchflags(int, unsigned long);
367 #endif
368 #if __POSIX_VISIBLE >= 200112
369 int	fchmod(int, mode_t);
370 #endif
371 #if __POSIX_VISIBLE >= 200809
372 int	fchmodat(int, const char *, mode_t, int);
373 int	futimens(int fd, const struct timespec times[2]);
374 int	utimensat(int fd, const char *path, const struct timespec times[2],
375 		int flag);
376 #endif
377 int	fstat(int, struct stat *);
378 #if __BSD_VISIBLE
379 int	lchflags(const char *, unsigned long);
380 int	lchmod(const char *, mode_t);
381 #endif
382 #if __POSIX_VISIBLE >= 200112
383 int	lstat(const char * __restrict, struct stat * __restrict);
384 #endif
385 int	mkdir(const char *, mode_t);
386 int	mkfifo(const char *, mode_t);
387 #if !defined(_MKNOD_DECLARED) && __XSI_VISIBLE
388 int	mknod(const char *, mode_t, dev_t);
389 #define	_MKNOD_DECLARED
390 #endif
391 int	stat(const char * __restrict, struct stat * __restrict);
392 mode_t	umask(mode_t);
393 #if __POSIX_VISIBLE >= 200809
394 int	fstatat(int, const char *, struct stat *, int);
395 int	mkdirat(int, const char *, mode_t);
396 int	mkfifoat(int, const char *, mode_t);
397 #endif
398 #if __XSI_VISIBLE >= 700
399 int	mknodat(int, const char *, mode_t, dev_t);
400 #endif
401 __END_DECLS
402 #endif /* !_KERNEL */
403 
404 #endif /* !_SYS_STAT_H_ */
405