include/sys/mount.h

/*
 * sys/mount.h
 */

#ifndef _SYS_MOUNT_H
#define _SYS_MOUNT_H

#include <klibc/extern.h>

/*
 * These are the fs-independent mount-flags: up to 32 flags are supported
 */
#define MS_RDONLY        1      /* Mount read-only */
#define MS_NOSUID        2      /* Ignore suid and sgid bits */
#define MS_NODEV         4      /* Disallow access to device special files */
#define MS_NOEXEC        8      /* Disallow program execution */
#define MS_SYNCHRONOUS  16      /* Writes are synced at once */
#define MS_REMOUNT      32      /* Alter flags of a mounted FS */
#define MS_MANDLOCK     64      /* Allow mandatory locks on an FS */
#define MS_NOATIME      1024    /* Do not update access times. */
#define MS_NODIRATIME   2048    /* Do not update directory access times */
#define MS_BIND         4096
#define MS_REC          16384
#define MS_VERBOSE      32768
#define MS_NOUSER       (1<<31)

/*
 * Superblock flags that can be altered by MS_REMOUNT
 */
#define MS_RMT_MASK     (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_NOATIME|MS_NODIRATIME)

/*
 * Old magic mount flag and mask
 */
#define MS_MGC_VAL 0xC0ED0000
#define MS_MGC_MSK 0xffff0000

/*
 * umount2() flags
 */
#define MNT_FORCE	1

/*
 * Prototypes
 */
__extern int mount(const char *, const char *,
		   const char *, unsigned long,
		   const void *);
__extern int umount(const char *);
__extern int umount2(const char *, int);
__extern int pivot_root(const char *, const char *);

#endif /* _SYS_MOUNT_H */