xref: /freebsd/sys/sys/stat.h (revision 1d386b48)
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  */
38 
39 #ifndef _SYS_STAT_H_
40 #define	_SYS_STAT_H_
41 
42 #include <sys/cdefs.h>
43 #include <sys/_timespec.h>
44 #include <sys/_types.h>
45 
46 #ifndef _BLKSIZE_T_DECLARED
47 typedef	__blksize_t	blksize_t;
48 #define	_BLKSIZE_T_DECLARED
49 #endif
50 
51 #ifndef _BLKCNT_T_DECLARED
52 typedef	__blkcnt_t	blkcnt_t;
53 #define	_BLKCNT_T_DECLARED
54 #endif
55 
56 #ifndef _DEV_T_DECLARED
57 typedef	__dev_t		dev_t;
58 #define	_DEV_T_DECLARED
59 #endif
60 
61 #ifndef _FFLAGS_T_DECLARED
62 typedef	__fflags_t	fflags_t;
63 #define	_FFLAGS_T_DECLARED
64 #endif
65 
66 #ifndef _GID_T_DECLARED
67 typedef	__gid_t		gid_t;
68 #define	_GID_T_DECLARED
69 #endif
70 
71 #ifndef _INO_T_DECLARED
72 typedef	__ino_t		ino_t;
73 #define	_INO_T_DECLARED
74 #endif
75 
76 #ifndef _MODE_T_DECLARED
77 typedef	__mode_t	mode_t;
78 #define	_MODE_T_DECLARED
79 #endif
80 
81 #ifndef _NLINK_T_DECLARED
82 typedef	__nlink_t	nlink_t;
83 #define	_NLINK_T_DECLARED
84 #endif
85 
86 #ifndef _OFF_T_DECLARED
87 typedef	__off_t		off_t;
88 #define	_OFF_T_DECLARED
89 #endif
90 
91 #ifndef _UID_T_DECLARED
92 typedef	__uid_t		uid_t;
93 #define	_UID_T_DECLARED
94 #endif
95 
96 #if !defined(_KERNEL) && __BSD_VISIBLE
97 /*
98  * XXX We get miscellaneous namespace pollution with this.
99  */
100 #include <sys/time.h>
101 #endif
102 
103 #ifdef _KERNEL
104 struct ostat {
105 	__uint16_t st_dev;		/* inode's device */
106 	__uint32_t st_ino;		/* inode's number */
107 	mode_t	  st_mode;		/* inode protection mode */
108 	__uint16_t st_nlink;		/* number of hard links */
109 	__uint16_t st_uid;		/* user ID of the file's owner */
110 	__uint16_t st_gid;		/* group ID of the file's group */
111 	__uint16_t st_rdev;		/* device type */
112 	__int32_t st_size;		/* file size, in bytes */
113 	struct	timespec st_atim;	/* time of last access */
114 	struct	timespec st_mtim;	/* time of last data modification */
115 	struct	timespec st_ctim;	/* time of last file status change */
116 	__int32_t st_blksize;		/* optimal blocksize for I/O */
117 	__int32_t st_blocks;		/* blocks allocated for file */
118 	fflags_t  st_flags;		/* user defined flags for file */
119 	__uint32_t st_gen;		/* file generation number */
120 };
121 #endif
122 
123 #if defined(_WANT_FREEBSD11_STAT) || defined(_KERNEL)
124 struct freebsd11_stat {
125 	__uint32_t st_dev;		/* inode's device */
126 	__uint32_t st_ino;		/* inode's number */
127 	mode_t	  st_mode;		/* inode protection mode */
128 	__uint16_t st_nlink;		/* number of hard links */
129 	uid_t	  st_uid;		/* user ID of the file's owner */
130 	gid_t	  st_gid;		/* group ID of the file's group */
131 	__uint32_t st_rdev;		/* device type */
132 	struct	timespec st_atim;	/* time of last access */
133 	struct	timespec st_mtim;	/* time of last data modification */
134 	struct	timespec st_ctim;	/* time of last file status change */
135 	off_t	  st_size;		/* file size, in bytes */
136 	blkcnt_t st_blocks;		/* blocks allocated for file */
137 	blksize_t st_blksize;		/* optimal blocksize for I/O */
138 	fflags_t  st_flags;		/* user defined flags for file */
139 	__uint32_t st_gen;		/* file generation number */
140 	__int32_t st_lspare;
141 	struct timespec st_birthtim;	/* time of file creation */
142 	/*
143 	 * Explicitly pad st_birthtim to 16 bytes so that the size of
144 	 * struct stat is backwards compatible.  We use bitfields instead
145 	 * of an array of chars so that this doesn't require a C99 compiler
146 	 * to compile if the size of the padding is 0.  We use 2 bitfields
147 	 * to cover up to 64 bits on 32-bit machines.  We assume that
148 	 * CHAR_BIT is 8...
149 	 */
150 	unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec));
151 	unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec));
152 };
153 #endif /* _WANT_FREEBSD11_STAT || _KERNEL */
154 
155 #if defined(__i386__)
156 #define	__STAT_TIME_T_EXT	1
157 #endif
158 
159 struct stat {
160 	dev_t     st_dev;		/* inode's device */
161 	ino_t	  st_ino;		/* inode's number */
162 	nlink_t	  st_nlink;		/* number of hard links */
163 	mode_t	  st_mode;		/* inode protection mode */
164 	__int16_t st_padding0;
165 	uid_t	  st_uid;		/* user ID of the file's owner */
166 	gid_t	  st_gid;		/* group ID of the file's group */
167 	__int32_t st_padding1;
168 	dev_t     st_rdev;		/* device type */
169 #ifdef	__STAT_TIME_T_EXT
170 	__int32_t st_atim_ext;
171 #endif
172 	struct	timespec st_atim;	/* time of last access */
173 #ifdef	__STAT_TIME_T_EXT
174 	__int32_t st_mtim_ext;
175 #endif
176 	struct	timespec st_mtim;	/* time of last data modification */
177 #ifdef	__STAT_TIME_T_EXT
178 	__int32_t st_ctim_ext;
179 #endif
180 	struct	timespec st_ctim;	/* time of last file status change */
181 #ifdef	__STAT_TIME_T_EXT
182 	__int32_t st_btim_ext;
183 #endif
184 	struct	timespec st_birthtim;	/* time of file creation */
185 	off_t	  st_size;		/* file size, in bytes */
186 	blkcnt_t st_blocks;		/* blocks allocated for file */
187 	blksize_t st_blksize;		/* optimal blocksize for I/O */
188 	fflags_t  st_flags;		/* user defined flags for file */
189 	__uint64_t st_gen;		/* file generation number */
190 	__uint64_t st_spare[10];
191 };
192 
193 #ifdef _KERNEL
194 struct nstat {
195 	__uint32_t st_dev;		/* inode's device */
196 	__uint32_t st_ino;		/* inode's number */
197 	__uint32_t st_mode;		/* inode protection mode */
198 	__uint32_t st_nlink;		/* number of hard links */
199 	uid_t	  st_uid;		/* user ID of the file's owner */
200 	gid_t	  st_gid;		/* group ID of the file's group */
201 	__uint32_t st_rdev;		/* device type */
202 	struct	timespec st_atim;	/* time of last access */
203 	struct	timespec st_mtim;	/* time of last data modification */
204 	struct	timespec st_ctim;	/* time of last file status change */
205 	off_t	  st_size;		/* file size, in bytes */
206 	blkcnt_t st_blocks;		/* blocks allocated for file */
207 	blksize_t st_blksize;		/* optimal blocksize for I/O */
208 	fflags_t  st_flags;		/* user defined flags for file */
209 	__uint32_t st_gen;		/* file generation number */
210 	struct timespec st_birthtim;	/* time of file creation */
211 	/*
212 	 * See comment in the definition of struct freebsd11_stat
213 	 * above about the following padding.
214 	 */
215 	unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec));
216 	unsigned int :(8 / 2) * (16 - (int)sizeof(struct timespec));
217 };
218 #endif
219 
220 #ifndef _KERNEL
221 #define	st_atime		st_atim.tv_sec
222 #define	st_mtime		st_mtim.tv_sec
223 #define	st_ctime		st_ctim.tv_sec
224 #if __BSD_VISIBLE
225 #define	st_birthtime		st_birthtim.tv_sec
226 #define	st_atimensec		st_atim.tv_nsec
227 #define	st_mtimensec		st_mtim.tv_nsec
228 #define	st_ctimensec		st_ctim.tv_nsec
229 #define	st_birthtimensec	st_birthtim.tv_nsec
230 #endif
231 
232 /* For compatibility. */
233 #if __BSD_VISIBLE
234 #define	st_atimespec		st_atim
235 #define	st_mtimespec		st_mtim
236 #define	st_ctimespec		st_ctim
237 #define	st_birthtimespec	st_birthtim
238 #endif
239 #endif /* !_KERNEL */
240 
241 #define	S_ISUID	0004000			/* set user id on execution */
242 #define	S_ISGID	0002000			/* set group id on execution */
243 #if __BSD_VISIBLE
244 #define	S_ISTXT	0001000			/* sticky bit */
245 #endif
246 
247 #define	S_IRWXU	0000700			/* RWX mask for owner */
248 #define	S_IRUSR	0000400			/* R for owner */
249 #define	S_IWUSR	0000200			/* W for owner */
250 #define	S_IXUSR	0000100			/* X for owner */
251 
252 #if __BSD_VISIBLE
253 #define	S_IREAD		S_IRUSR
254 #define	S_IWRITE	S_IWUSR
255 #define	S_IEXEC		S_IXUSR
256 #endif
257 
258 #define	S_IRWXG	0000070			/* RWX mask for group */
259 #define	S_IRGRP	0000040			/* R for group */
260 #define	S_IWGRP	0000020			/* W for group */
261 #define	S_IXGRP	0000010			/* X for group */
262 
263 #define	S_IRWXO	0000007			/* RWX mask for other */
264 #define	S_IROTH	0000004			/* R for other */
265 #define	S_IWOTH	0000002			/* W for other */
266 #define	S_IXOTH	0000001			/* X for other */
267 
268 #if __XSI_VISIBLE
269 #define	S_IFMT	 0170000		/* type of file mask */
270 #define	S_IFIFO	 0010000		/* named pipe (fifo) */
271 #define	S_IFCHR	 0020000		/* character special */
272 #define	S_IFDIR	 0040000		/* directory */
273 #define	S_IFBLK	 0060000		/* block special */
274 #define	S_IFREG	 0100000		/* regular */
275 #define	S_IFLNK	 0120000		/* symbolic link */
276 #define	S_IFSOCK 0140000		/* socket */
277 #define	S_ISVTX	 0001000		/* save swapped text even after use */
278 #endif
279 #if __BSD_VISIBLE
280 #define	S_IFWHT  0160000		/* whiteout */
281 #endif
282 
283 #define	S_ISDIR(m)	(((m) & 0170000) == 0040000)	/* directory */
284 #define	S_ISCHR(m)	(((m) & 0170000) == 0020000)	/* char special */
285 #define	S_ISBLK(m)	(((m) & 0170000) == 0060000)	/* block special */
286 #define	S_ISREG(m)	(((m) & 0170000) == 0100000)	/* regular file */
287 #define	S_ISFIFO(m)	(((m) & 0170000) == 0010000)	/* fifo or socket */
288 #if __POSIX_VISIBLE >= 200112
289 #define	S_ISLNK(m)	(((m) & 0170000) == 0120000)	/* symbolic link */
290 #define	S_ISSOCK(m)	(((m) & 0170000) == 0140000)	/* socket */
291 #endif
292 #if __BSD_VISIBLE
293 #define	S_ISWHT(m)	(((m) & 0170000) == 0160000)	/* whiteout */
294 #endif
295 
296 #if __BSD_VISIBLE
297 #define	ACCESSPERMS	(S_IRWXU|S_IRWXG|S_IRWXO)	/* 0777 */
298 							/* 7777 */
299 #define	ALLPERMS	(S_ISUID|S_ISGID|S_ISTXT|S_IRWXU|S_IRWXG|S_IRWXO)
300 							/* 0666 */
301 #define	DEFFILEMODE	(S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
302 
303 #define S_BLKSIZE	512		/* block size used in the stat struct */
304 
305 /*
306  * Definitions of flags stored in file flags word.
307  *
308  * Super-user and owner changeable flags.
309  */
310 #define	UF_SETTABLE	0x0000ffff	/* mask of owner changeable flags */
311 #define	UF_NODUMP	0x00000001	/* do not dump file */
312 #define	UF_IMMUTABLE	0x00000002	/* file may not be changed */
313 #define	UF_APPEND	0x00000004	/* writes to file may only append */
314 #define	UF_OPAQUE	0x00000008	/* directory is opaque wrt. union */
315 #define	UF_NOUNLINK	0x00000010	/* file may not be removed or renamed */
316 /*
317  * These two bits are defined in MacOS X.  They are not currently used in
318  * FreeBSD.
319  */
320 #if 0
321 #define	UF_COMPRESSED	0x00000020	/* file is compressed */
322 #define	UF_TRACKED	0x00000040	/* renames and deletes are tracked */
323 #endif
324 
325 #define	UF_SYSTEM	0x00000080	/* Windows system file bit */
326 #define	UF_SPARSE	0x00000100	/* sparse file */
327 #define	UF_OFFLINE	0x00000200	/* file is offline */
328 #define	UF_REPARSE	0x00000400	/* Windows reparse point file bit */
329 #define	UF_ARCHIVE	0x00000800	/* file needs to be archived */
330 #define	UF_READONLY	0x00001000	/* Windows readonly file bit */
331 /* This is the same as the MacOS X definition of UF_HIDDEN. */
332 #define	UF_HIDDEN	0x00008000	/* file is hidden */
333 
334 /*
335  * Super-user changeable flags.
336  */
337 #define	SF_SETTABLE	0xffff0000	/* mask of superuser changeable flags */
338 #define	SF_ARCHIVED	0x00010000	/* file is archived */
339 #define	SF_IMMUTABLE	0x00020000	/* file may not be changed */
340 #define	SF_APPEND	0x00040000	/* writes to file may only append */
341 #define	SF_NOUNLINK	0x00100000	/* file may not be removed or renamed */
342 #define	SF_SNAPSHOT	0x00200000	/* snapshot inode */
343 
344 #ifdef _KERNEL
345 /*
346  * Shorthand abbreviations of above.
347  */
348 #define	OPAQUE		(UF_OPAQUE)
349 #define	APPEND		(UF_APPEND | SF_APPEND)
350 #define	IMMUTABLE	(UF_IMMUTABLE | SF_IMMUTABLE)
351 #define	NOUNLINK	(UF_NOUNLINK | SF_NOUNLINK)
352 #endif
353 
354 #endif /* __BSD_VISIBLE */
355 
356 #if __POSIX_VISIBLE >= 200809
357 #define	UTIME_NOW	-1
358 #define	UTIME_OMIT	-2
359 #endif
360 
361 #ifndef _KERNEL
362 __BEGIN_DECLS
363 #if __BSD_VISIBLE
364 int	chflags(const char *, unsigned long);
365 int	chflagsat(int, const char *, unsigned long, int);
366 #endif
367 int	chmod(const char *, mode_t);
368 #if __BSD_VISIBLE
369 int	fchflags(int, unsigned long);
370 #endif
371 #if __POSIX_VISIBLE >= 200112
372 int	fchmod(int, mode_t);
373 #endif
374 #if __POSIX_VISIBLE >= 200809
375 int	fchmodat(int, const char *, mode_t, int);
376 int	futimens(int fd, const struct timespec times[2]);
377 int	utimensat(int fd, const char *path, const struct timespec times[2],
378 		int flag);
379 #endif
380 int	fstat(int, struct stat *);
381 #if __BSD_VISIBLE
382 int	lchflags(const char *, unsigned long);
383 int	lchmod(const char *, mode_t);
384 #endif
385 #if __POSIX_VISIBLE >= 200112
386 int	lstat(const char * __restrict, struct stat * __restrict);
387 #endif
388 int	mkdir(const char *, mode_t);
389 int	mkfifo(const char *, mode_t);
390 #if !defined(_MKNOD_DECLARED) && __XSI_VISIBLE
391 int	mknod(const char *, mode_t, dev_t);
392 #define	_MKNOD_DECLARED
393 #endif
394 int	stat(const char * __restrict, struct stat * __restrict);
395 mode_t	umask(mode_t);
396 #if __POSIX_VISIBLE >= 200809
397 int	fstatat(int, const char *, struct stat *, int);
398 int	mkdirat(int, const char *, mode_t);
399 int	mkfifoat(int, const char *, mode_t);
400 #endif
401 #if __XSI_VISIBLE >= 700
402 int	mknodat(int, const char *, mode_t, dev_t);
403 #endif
404 __END_DECLS
405 #endif /* !_KERNEL */
406 
407 #endif /* !_SYS_STAT_H_ */
408