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/*
* sys/mount.h
*/
#ifndef _SYS_MOUNT_H
#define _SYS_MOUNT_H
#include <klibc/extern.h>
#include <sys/ioctl.h>
/*
* These are the fs-independent mount-flags: up to 32 flags are supported
*/
#define MS_RDONLY 0x0001 /* Mount read-only */
#define MS_NOSUID 0x0002 /* Ignore suid and sgid bits */
#define MS_NODEV 0x0004 /* Disallow access to device special files */
#define MS_NOEXEC 0x0008 /* Disallow program execution */
#define MS_SYNCHRONOUS 0x0010 /* Writes are synced at once */
#define MS_REMOUNT 0x0020 /* Alter flags of a mounted FS */
#define MS_MANDLOCK 0x0040 /* Allow mandatory locks on an FS */
#define MS_DIRSYNC 0x0080 /* Directory modifications are synchronous */
#define MS_NOATIME 0x0400 /* Do not update access times. */
#define MS_NODIRATIME 0x0800 /* Do not update directory access times */
#define MS_BIND 0x1000
#define MS_MOVE 0x2000
#define MS_REC 0x4000
#define MS_VERBOSE 0x8000
#define MS_POSIXACL (1<<16) /* VFS does not apply the umask */
#define MS_ONE_SECOND (1<<17) /* fs has 1 sec a/m/ctime resolution */
#define MS_ACTIVE (1<<30)
#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 /* Forcibly unmount */
#define MNT_DETACH 2 /* Detach from tree only */
#define MNT_EXPIRE 4 /* Mark for expiry */
/*
* Block device ioctls
*/
#define BLKROSET _IO(0x12, 93) /* Set device read-only (0 = read-write). */
#define BLKROGET _IO(0x12, 94) /* Get read-only status (0 = read_write). */
#define BLKRRPART _IO(0x12, 95) /* Re-read partition table. */
#define BLKGETSIZE _IO(0x12, 96) /* Return device size. */
#define BLKFLSBUF _IO(0x12, 97) /* Flush buffer cache. */
#define BLKRASET _IO(0x12, 98) /* Set read ahead for block device. */
#define BLKRAGET _IO(0x12, 99) /* Get current read ahead setting. */
/*
* 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 */
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