992b293122
fs/driver and fs/mount: Add mount() support for file systems that require MTD drivers (vs. block drivers).
fs/drivers: Add support for named MTD drivers in the psuedo file system. This will, eventually, allow us to mount file systems that need MTD drivers without having to fake an intervening block driver.
168 lines
6.1 KiB
C
168 lines
6.1 KiB
C
/****************************************************************************
|
|
* include/sys/stat.h
|
|
*
|
|
* Copyright (C) 2007-2009, 2012, 2018 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __INCLUDE_SYS_STAT_H
|
|
#define __INCLUDE_SYS_STAT_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <sys/types.h>
|
|
#include <time.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/* mode_t bit settings (most of these do not apply to Nuttx). This assumes
|
|
* that the full size of a mode_t is 16-bits. (However, mode_t must be size
|
|
* 'int' because it is promoted to size int when passed in varargs).
|
|
*
|
|
* LTTT ...U UUGG GOOO
|
|
*
|
|
* Bits 0-2: Permissions for others
|
|
* Bits 3-5: Group permissions
|
|
* Bits 6-8: Owner permissions
|
|
* Bits 9-10: Not used
|
|
* Bits 11-14: File type bits
|
|
* Bit 15: Symbolic link
|
|
*/
|
|
|
|
#define S_IXOTH (1 << 0) /* Bits 0-2: Permissions for others: RWX */
|
|
#define S_IWOTH (1 << 1)
|
|
#define S_IROTH (1 << 2)
|
|
#define S_IRWXO (7 << 0)
|
|
|
|
#define S_IXGRP (1 << 3) /* Bits 3-5: Group permissions: RWX */
|
|
#define S_IWGRP (1 << 4)
|
|
#define S_IRGRP (1 << 5)
|
|
#define S_IRWXG (7 << 3)
|
|
|
|
#define S_IXUSR (1 << 6) /* Bits 6-8: Owner permissions: RWX */
|
|
#define S_IWUSR (1 << 7)
|
|
#define S_IRUSR (1 << 8)
|
|
#define S_IRWXU (7 << 6)
|
|
|
|
#define S_ISVTX 0 /* "Sticky" bit (not used) */
|
|
#define S_ISGID 0 /* Set group ID bit (not used)*/
|
|
#define S_ISUID 0 /* Set UID bit (not used) */
|
|
|
|
#define S_IFIFO 0 /* Bits 11-14: File type bits (not all used) */
|
|
#define S_IFCHR (1 << 11)
|
|
#define S_IFDIR (2 << 11)
|
|
#define S_IFBLK (3 << 11)
|
|
#define S_IFREG (4 << 11)
|
|
#define S_IFMQ (5 << 11)
|
|
#define S_IFSEM (6 << 11)
|
|
#define S_IFSHM (7 << 11)
|
|
#define S_IFSOCK (8 << 11)
|
|
#define S_IFMTD (9 << 11)
|
|
#define s_IFTGT (15 << 11) /* May be the target of a symbolic link */
|
|
|
|
#define S_IFLNK (1 << 15) /* Bit 15: Symbolic link */
|
|
#define S_IFMT (31 << 11) /* Bits 11-15: Full file type */
|
|
|
|
/* File type macros that operate on an instance of mode_t */
|
|
|
|
#define S_ISFIFO(m) (0)
|
|
#define S_ISCHR(m) (((m) & s_IFTGT) == S_IFCHR)
|
|
#define S_ISDIR(m) (((m) & s_IFTGT) == S_IFDIR)
|
|
#define S_ISBLK(m) (((m) & s_IFTGT) == S_IFBLK)
|
|
#define S_ISREG(m) (((m) & s_IFTGT) == S_IFREG)
|
|
#define S_ISMQ(m) (((m) & s_IFTGT) == S_IFMQ)
|
|
#define S_ISSEM(m) (((m) & s_IFTGT) == S_IFSEM)
|
|
#define S_ISSHM(m) (((m) & s_IFTGT) == S_IFSHM)
|
|
#define S_ISSOCK(m) (((m) & s_IFTGT) == S_IFSOCK)
|
|
#define S_ISMTD(m) (((m) & s_IFTGT) == S_IFMTD)
|
|
#define S_ISLNK(m) (((m) & S_IFLNK) != 0)
|
|
|
|
/****************************************************************************
|
|
* Type Definitions
|
|
****************************************************************************/
|
|
|
|
/* This is the simplified struct stat as returned by stat() and fstat().
|
|
* This structure provides information about a specific file or directory in
|
|
* the file system.
|
|
*/
|
|
|
|
struct stat
|
|
{
|
|
/* Required, standard fields */
|
|
|
|
mode_t st_mode; /* File type, attributes, and access mode bits */
|
|
off_t st_size; /* Size of file/directory, in bytes */
|
|
blksize_t st_blksize; /* Block size used for filesystem I/O */
|
|
blkcnt_t st_blocks; /* Number of blocks allocated */
|
|
time_t st_atime; /* Time of last access */
|
|
time_t st_mtime; /* Time of last modification */
|
|
time_t st_ctime; /* Time of last status change */
|
|
|
|
/* Internal fields. These are part this specific implementation and
|
|
* should not referenced by application code for portability reasons.
|
|
*/
|
|
|
|
#ifdef CONFIG_PSEUDOFS_SOFTLINKS
|
|
uint8_t st_count; /* Used internally to limit traversal of links */
|
|
#endif
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
#undef EXTERN
|
|
#if defined(__cplusplus)
|
|
#define EXTERN extern "C"
|
|
extern "C"
|
|
{
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
int mkdir(FAR const char *pathname, mode_t mode);
|
|
int mkfifo(FAR const char *pathname, mode_t mode);
|
|
int stat(FAR const char *path, FAR struct stat *buf);
|
|
int fstat(int fd, FAR struct stat *buf);
|
|
|
|
#undef EXTERN
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif /* __INCLUDE_SYS_STAT_H */
|