| /* |
| * 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 */ |
