diff options
Diffstat (limited to 'aarch64-none-linux-gnu/libc/usr/include/sys/mount.h')
| -rw-r--r-- | aarch64-none-linux-gnu/libc/usr/include/sys/mount.h | 322 |
1 files changed, 322 insertions, 0 deletions
diff --git a/aarch64-none-linux-gnu/libc/usr/include/sys/mount.h b/aarch64-none-linux-gnu/libc/usr/include/sys/mount.h new file mode 100644 index 0000000..c6da841 --- /dev/null +++ b/aarch64-none-linux-gnu/libc/usr/include/sys/mount.h @@ -0,0 +1,322 @@ +/* Header file for mounting/unmount Linux filesystems. + Copyright (C) 1996-2023 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +/* This is taken from /usr/include/linux/fs.h. */ + +#ifndef _SYS_MOUNT_H +#define _SYS_MOUNT_H 1 + +#include <fcntl.h> +#include <features.h> +#include <stdint.h> +#include <stddef.h> +#include <sys/ioctl.h> + +#ifdef __has_include +# if __has_include ("linux/mount.h") +# include "linux/mount.h" +# endif +#endif + + +#define BLOCK_SIZE_BITS 10 +#define BLOCK_SIZE (1<<BLOCK_SIZE_BITS) + + +/* These are the fs-independent mount-flags: up to 16 flags are + supported */ +enum +{ +#undef MS_RDONLY + MS_RDONLY = 1, /* Mount read-only. */ +#define MS_RDONLY MS_RDONLY +#undef MS_NOSUID + MS_NOSUID = 2, /* Ignore suid and sgid bits. */ +#define MS_NOSUID MS_NOSUID +#undef MS_NODEV + MS_NODEV = 4, /* Disallow access to device special files. */ +#define MS_NODEV MS_NODEV +#undef MS_NOEXEC + MS_NOEXEC = 8, /* Disallow program execution. */ +#define MS_NOEXEC MS_NOEXEC +#undef MS_SYNCHRONOUS + MS_SYNCHRONOUS = 16, /* Writes are synced at once. */ +#define MS_SYNCHRONOUS MS_SYNCHRONOUS +#undef MS_REMOUNT + MS_REMOUNT = 32, /* Alter flags of a mounted FS. */ +#define MS_REMOUNT MS_REMOUNT +#undef MS_MANDLOCK + MS_MANDLOCK = 64, /* Allow mandatory locks on an FS. */ +#define MS_MANDLOCK MS_MANDLOCK +#undef MS_DIRSYNC + MS_DIRSYNC = 128, /* Directory modifications are synchronous. */ +#define MS_DIRSYNC MS_DIRSYNC +#undef MS_NOSYMFOLLOW + MS_NOSYMFOLLOW = 256, /* Do not follow symlinks. */ +#define MS_NOSYMFOLLOW MS_NOSYMFOLLOW +#undef MS_NOATIME + MS_NOATIME = 1024, /* Do not update access times. */ +#define MS_NOATIME MS_NOATIME +#undef MS_NODIRATIME + MS_NODIRATIME = 2048, /* Do not update directory access times. */ +#define MS_NODIRATIME MS_NODIRATIME +#undef MS_BIND + MS_BIND = 4096, /* Bind directory at different place. */ +#define MS_BIND MS_BIND +#undef MS_MOVE + MS_MOVE = 8192, +#define MS_MOVE MS_MOVE +#undef MS_REC + MS_REC = 16384, +#define MS_REC MS_REC +#undef MS_SILENT + MS_SILENT = 32768, +#define MS_SILENT MS_SILENT +#undef MS_POSIXACL + MS_POSIXACL = 1 << 16, /* VFS does not apply the umask. */ +#define MS_POSIXACL MS_POSIXACL +#undef MS_UNBINDABLE + MS_UNBINDABLE = 1 << 17, /* Change to unbindable. */ +#define MS_UNBINDABLE MS_UNBINDABLE +#undef MS_PRIVATE + MS_PRIVATE = 1 << 18, /* Change to private. */ +#define MS_PRIVATE MS_PRIVATE +#undef MS_SLAVE + MS_SLAVE = 1 << 19, /* Change to slave. */ +#define MS_SLAVE MS_SLAVE +#undef MS_SHARED + MS_SHARED = 1 << 20, /* Change to shared. */ +#define MS_SHARED MS_SHARED +#undef MS_RELATIME + MS_RELATIME = 1 << 21, /* Update atime relative to mtime/ctime. */ +#define MS_RELATIME MS_RELATIME +#undef MS_KERNMOUNT + MS_KERNMOUNT = 1 << 22, /* This is a kern_mount call. */ +#define MS_KERNMOUNT MS_KERNMOUNT +#undef MS_I_VERSION + MS_I_VERSION = 1 << 23, /* Update inode I_version field. */ +#define MS_I_VERSION MS_I_VERSION +#undef MS_STRICTATIME + MS_STRICTATIME = 1 << 24, /* Always perform atime updates. */ +#define MS_STRICTATIME MS_STRICTATIME +#undef MS_LAZYTIME + MS_LAZYTIME = 1 << 25, /* Update the on-disk [acm]times lazily. */ +#define MS_LAZYTIME MS_LAZYTIME +#undef MS_ACTIVE + MS_ACTIVE = 1 << 30, +#define MS_ACTIVE MS_ACTIVE +#undef MS_NOUSER + MS_NOUSER = 1 << 31 +#define MS_NOUSER MS_NOUSER +}; + +/* Flags that can be altered by MS_REMOUNT */ +#undef MS_RMT_MASK +#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_I_VERSION \ + |MS_LAZYTIME) + + +/* Magic mount flag number. Has to be or-ed to the flag values. */ + +#undef MS_MGC_VAL +#define MS_MGC_VAL 0xc0ed0000 /* Magic flag number to indicate "new" flags */ +#define MS_MGC_MSK 0xffff0000 /* Magic flag number mask */ + + +/* The read-only stuff doesn't really belong here, but any other place + is probably as bad and I don't want to create yet another include + file. */ + +#undef BLKROSET +#define BLKROSET _IO(0x12, 93) /* Set device read-only (0 = read-write). */ +#undef BLKROGET +#define BLKROGET _IO(0x12, 94) /* Get read-only status (0 = read_write). */ +#undef BLKRRPART +#define BLKRRPART _IO(0x12, 95) /* Re-read partition table. */ +#undef BLKGETSIZE +#define BLKGETSIZE _IO(0x12, 96) /* Return device size. */ +#undef BLKFLSBUF +#define BLKFLSBUF _IO(0x12, 97) /* Flush buffer cache. */ +#undef BLKRASET +#define BLKRASET _IO(0x12, 98) /* Set read ahead for block device. */ +#undef BLKRAGET +#define BLKRAGET _IO(0x12, 99) /* Get current read ahead setting. */ +#undef BLKFRASET +#define BLKFRASET _IO(0x12,100) /* Set filesystem read-ahead. */ +#undef BLKFRAGET +#define BLKFRAGET _IO(0x12,101) /* Get filesystem read-ahead. */ +#undef BLKSECTSET +#define BLKSECTSET _IO(0x12,102) /* Set max sectors per request. */ +#undef BLKSECTGET +#define BLKSECTGET _IO(0x12,103) /* Get max sectors per request. */ +#undef BLKSSZGET +#define BLKSSZGET _IO(0x12,104) /* Get block device sector size. */ +#undef BLKBSZGET +#define BLKBSZGET _IOR(0x12,112,size_t) +#undef BLKBSZSET +#define BLKBSZSET _IOW(0x12,113,size_t) +#undef BLKGETSIZE64 +#define BLKGETSIZE64 _IOR(0x12,114,size_t) /* return device size. */ + + +/* Possible value for FLAGS parameter of `umount2'. */ +enum +{ + MNT_FORCE = 1, /* Force unmounting. */ +#define MNT_FORCE MNT_FORCE + MNT_DETACH = 2, /* Just detach from the tree. */ +#define MNT_DETACH MNT_DETACH + MNT_EXPIRE = 4, /* Mark for expiry. */ +#define MNT_EXPIRE MNT_EXPIRE + UMOUNT_NOFOLLOW = 8 /* Don't follow symlink on umount. */ +#define UMOUNT_NOFOLLOW UMOUNT_NOFOLLOW +}; + + +/* fsmount flags. */ +#define FSMOUNT_CLOEXEC 0x00000001 + +/* mount attributes used on fsmount. */ +#define MOUNT_ATTR_RDONLY 0x00000001 /* Mount read-only. */ +#define MOUNT_ATTR_NOSUID 0x00000002 /* Ignore suid and sgid bits. */ +#define MOUNT_ATTR_NODEV 0x00000004 /* Disallow access to device special files. */ +#define MOUNT_ATTR_NOEXEC 0x00000008 /* Disallow program execution. */ +#define MOUNT_ATTR__ATIME 0x00000070 /* Setting on how atime should be updated. */ +#define MOUNT_ATTR_RELATIME 0x00000000 /* - Update atime relative to mtime/ctime. */ +#define MOUNT_ATTR_NOATIME 0x00000010 /* - Do not update access times. */ +#define MOUNT_ATTR_STRICTATIME 0x00000020 /* - Always perform atime updates */ +#define MOUNT_ATTR_NODIRATIME 0x00000080 /* Do not update directory access times. */ +#define MOUNT_ATTR_IDMAP 0x00100000 /* Idmap mount to @userns_fd in struct mount_attr. */ +#define MOUNT_ATTR_NOSYMFOLLOW 0x00200000 /* Do not follow symlinks. */ + + +#ifndef MOUNT_ATTR_SIZE_VER0 +/* For mount_setattr. */ +struct mount_attr +{ + uint64_t attr_set; + uint64_t attr_clr; + uint64_t propagation; + uint64_t userns_fd; +}; +#endif + +#define MOUNT_ATTR_SIZE_VER0 32 /* sizeof first published struct */ + +/* move_mount flags. */ +#define MOVE_MOUNT_F_SYMLINKS 0x00000001 /* Follow symlinks on from path */ +#define MOVE_MOUNT_F_AUTOMOUNTS 0x00000002 /* Follow automounts on from path */ +#define MOVE_MOUNT_F_EMPTY_PATH 0x00000004 /* Empty from path permitted */ +#define MOVE_MOUNT_T_SYMLINKS 0x00000010 /* Follow symlinks on to path */ +#define MOVE_MOUNT_T_AUTOMOUNTS 0x00000020 /* Follow automounts on to path */ +#define MOVE_MOUNT_T_EMPTY_PATH 0x00000040 /* Empty to path permitted */ +#define MOVE_MOUNT_SET_GROUP 0x00000100 /* Set sharing group instead */ + + +/* fspick flags. */ +#define FSPICK_CLOEXEC 0x00000001 +#define FSPICK_SYMLINK_NOFOLLOW 0x00000002 +#define FSPICK_NO_AUTOMOUNT 0x00000004 +#define FSPICK_EMPTY_PATH 0x00000008 + + +#ifndef FSOPEN_CLOEXEC +/* The type of fsconfig call made. */ +enum fsconfig_command +{ + FSCONFIG_SET_FLAG = 0, /* Set parameter, supplying no value */ +# define FSCONFIG_SET_FLAG FSCONFIG_SET_FLAG + FSCONFIG_SET_STRING = 1, /* Set parameter, supplying a string value */ +# define FSCONFIG_SET_STRING FSCONFIG_SET_STRING + FSCONFIG_SET_BINARY = 2, /* Set parameter, supplying a binary blob value */ +# define FSCONFIG_SET_BINARY FSCONFIG_SET_BINARY + FSCONFIG_SET_PATH = 3, /* Set parameter, supplying an object by path */ +# define FSCONFIG_SET_PATH FSCONFIG_SET_PATH + FSCONFIG_SET_PATH_EMPTY = 4, /* Set parameter, supplying an object by (empty) path */ +# define FSCONFIG_SET_PATH_EMPTY FSCONFIG_SET_PATH_EMPTY + FSCONFIG_SET_FD = 5, /* Set parameter, supplying an object by fd */ +# define FSCONFIG_SET_FD FSCONFIG_SET_FD + FSCONFIG_CMD_CREATE = 6, /* Invoke superblock creation */ +# define FSCONFIG_CMD_CREATE FSCONFIG_CMD_CREATE + FSCONFIG_CMD_RECONFIGURE = 7, /* Invoke superblock reconfiguration */ +# define FSCONFIG_CMD_RECONFIGURE FSCONFIG_CMD_RECONFIGURE +}; +#endif + +/* fsopen flags. */ +#define FSOPEN_CLOEXEC 0x00000001 + +/* open_tree flags. */ +#define OPEN_TREE_CLONE 1 /* Clone the target tree and attach the clone */ +#define OPEN_TREE_CLOEXEC O_CLOEXEC /* Close the file on execve() */ + + +__BEGIN_DECLS + +/* Mount a filesystem. */ +extern int mount (const char *__special_file, const char *__dir, + const char *__fstype, unsigned long int __rwflag, + const void *__data) __THROW; + +/* Unmount a filesystem. */ +extern int umount (const char *__special_file) __THROW; + +/* Unmount a filesystem. Force unmounting if FLAGS is set to MNT_FORCE. */ +extern int umount2 (const char *__special_file, int __flags) __THROW; + +/* Open the filesystem referenced by FS_NAME so it can be configured for + mouting. */ +extern int fsopen (const char *__fs_name, unsigned int __flags) __THROW; + +/* Create a mount representation for the FD created by fsopen using + FLAGS with ATTR_FLAGS describing how the mount is to be performed. */ +extern int fsmount (int __fd, unsigned int __flags, + unsigned int __ms_flags) __THROW; + +/* Add the mounted FROM_DFD referenced by FROM_PATHNAME filesystem returned + by fsmount in the hierarchy in the place TO_DFD reference by TO_PATHNAME + using FLAGS. */ +extern int move_mount (int __from_dfd, const char *__from_pathname, + int __to_dfd, const char *__to_pathname, + unsigned int flags) __THROW; + +/* Set parameters and trigger CMD action on the FD context. KEY, VALUE, + and AUX are used depending ng of the CMD. */ +extern int fsconfig (int __fd, unsigned int __cmd, const char *__key, + const void *__value, int __aux) __THROW; + +/* Equivalent of fopen for an existing mount point. */ +extern int fspick (int __dfd, const char *__path, unsigned int __flags) + __THROW; + +/* Open the mount point FILENAME in directory DFD using FLAGS. */ +extern int open_tree (int __dfd, const char *__filename, unsigned int __flags) + __THROW; + +/* Change the mount properties of the mount or an entire mount tree. If + PATH is a relative pathname, then it is interpreted relative to the + directory referred to by the file descriptor dirfd. Otherwise if DFD is + the special value AT_FDCWD then PATH is interpreted relative to the current + working directory of the calling process. */ +extern int mount_setattr (int __dfd, const char *__path, unsigned int __flags, + struct mount_attr *__uattr, size_t __usize) + __THROW; + +__END_DECLS + +#endif /* _SYS_MOUNT_H */ |