git/linux-cryptodev-2.6
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git synced 2026-04-18 03:23:53 -04:00
Code Issues Packages Projects Releases Wiki Activity

Merge tag 'vfs-6.16-rc1.selftests' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Browse Source 
Pull vfs selftests updates from Christian Brauner:
 "This contains various cleanups, fixes, and extensions for out
  filesystem selftests"

* tag 'vfs-6.16-rc1.selftests' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  selftests/fs/mount-notify: add a test variant running inside userns
  selftests/filesystems: create setup_userns() helper
  selftests/filesystems: create get_unique_mnt_id() helper
  selftests/fs/mount-notify: build with tools include dir
  selftests/mount_settattr: remove duplicate syscall definitions
  selftests/pidfd: move syscall definitions into wrappers.h
  selftests/fs/statmount: build with tools include dir
  selftests/filesystems: move wrapper.h out of overlayfs subdir
  selftests/mount_settattr: ensure that ext4 filesystem can be created
  selftests/mount_settattr: add missing STATX_MNT_ID_UNIQUE define
  selftests/mount_settattr: don't define sys_open_tree() twice
This commit is contained in:
Linus Torvalds
2025-05-26 11:32:28 -07:00
parent a2e43397e5 7ec091c559
commit 3e406741b1
19 changed files with 1317 additions and 250 deletions
Download Patch File Download Diff File Expand all files Collapse all files

274
tools/include/uapi/linux/fanotify.h Normal file
View File

@@ -0,0 +1,274 @@
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_LINUX_FANOTIFY_H
#define _UAPI_LINUX_FANOTIFY_H
#include <linux/types.h>
/* the following events that user-space can register for */
#define FAN_ACCESS 0x00000001 /* File was accessed */
#define FAN_MODIFY 0x00000002 /* File was modified */
#define FAN_ATTRIB 0x00000004 /* Metadata changed */
#define FAN_CLOSE_WRITE 0x00000008 /* Writable file closed */
#define FAN_CLOSE_NOWRITE 0x00000010 /* Unwritable file closed */
#define FAN_OPEN 0x00000020 /* File was opened */
#define FAN_MOVED_FROM 0x00000040 /* File was moved from X */
#define FAN_MOVED_TO 0x00000080 /* File was moved to Y */
#define FAN_CREATE 0x00000100 /* Subfile was created */
#define FAN_DELETE 0x00000200 /* Subfile was deleted */
#define FAN_DELETE_SELF 0x00000400 /* Self was deleted */
#define FAN_MOVE_SELF 0x00000800 /* Self was moved */
#define FAN_OPEN_EXEC 0x00001000 /* File was opened for exec */
#define FAN_Q_OVERFLOW 0x00004000 /* Event queued overflowed */
#define FAN_FS_ERROR 0x00008000 /* Filesystem error */
#define FAN_OPEN_PERM 0x00010000 /* File open in perm check */
#define FAN_ACCESS_PERM 0x00020000 /* File accessed in perm check */
#define FAN_OPEN_EXEC_PERM 0x00040000 /* File open/exec in perm check */
/* #define FAN_DIR_MODIFY 0x00080000 */ /* Deprecated (reserved) */
#define FAN_PRE_ACCESS 0x00100000 /* Pre-content access hook */
#define FAN_MNT_ATTACH 0x01000000 /* Mount was attached */
#define FAN_MNT_DETACH 0x02000000 /* Mount was detached */
#define FAN_EVENT_ON_CHILD 0x08000000 /* Interested in child events */
#define FAN_RENAME 0x10000000 /* File was renamed */
#define FAN_ONDIR 0x40000000 /* Event occurred against dir */
/* helper events */
#define FAN_CLOSE (FAN_CLOSE_WRITE | FAN_CLOSE_NOWRITE) /* close */
#define FAN_MOVE (FAN_MOVED_FROM | FAN_MOVED_TO) /* moves */
/* flags used for fanotify_init() */
#define FAN_CLOEXEC 0x00000001
#define FAN_NONBLOCK 0x00000002
/* These are NOT bitwise flags. Both bits are used together. */
#define FAN_CLASS_NOTIF 0x00000000
#define FAN_CLASS_CONTENT 0x00000004
#define FAN_CLASS_PRE_CONTENT 0x00000008
/* Deprecated - do not use this in programs and do not add new flags here! */
#define FAN_ALL_CLASS_BITS (FAN_CLASS_NOTIF | FAN_CLASS_CONTENT | \
FAN_CLASS_PRE_CONTENT)
#define FAN_UNLIMITED_QUEUE 0x00000010
#define FAN_UNLIMITED_MARKS 0x00000020
#define FAN_ENABLE_AUDIT 0x00000040
/* Flags to determine fanotify event format */
#define FAN_REPORT_PIDFD 0x00000080 /* Report pidfd for event->pid */
#define FAN_REPORT_TID 0x00000100 /* event->pid is thread id */
#define FAN_REPORT_FID 0x00000200 /* Report unique file id */
#define FAN_REPORT_DIR_FID 0x00000400 /* Report unique directory id */
#define FAN_REPORT_NAME 0x00000800 /* Report events with name */
#define FAN_REPORT_TARGET_FID 0x00001000 /* Report dirent target id */
#define FAN_REPORT_FD_ERROR 0x00002000 /* event->fd can report error */
#define FAN_REPORT_MNT 0x00004000 /* Report mount events */
/* Convenience macro - FAN_REPORT_NAME requires FAN_REPORT_DIR_FID */
#define FAN_REPORT_DFID_NAME (FAN_REPORT_DIR_FID | FAN_REPORT_NAME)
/* Convenience macro - FAN_REPORT_TARGET_FID requires all other FID flags */
#define FAN_REPORT_DFID_NAME_TARGET (FAN_REPORT_DFID_NAME | \
FAN_REPORT_FID | FAN_REPORT_TARGET_FID)
/* Deprecated - do not use this in programs and do not add new flags here! */
#define FAN_ALL_INIT_FLAGS (FAN_CLOEXEC | FAN_NONBLOCK | \
FAN_ALL_CLASS_BITS | FAN_UNLIMITED_QUEUE |\
FAN_UNLIMITED_MARKS)
/* flags used for fanotify_modify_mark() */
#define FAN_MARK_ADD 0x00000001
#define FAN_MARK_REMOVE 0x00000002
#define FAN_MARK_DONT_FOLLOW 0x00000004
#define FAN_MARK_ONLYDIR 0x00000008
/* FAN_MARK_MOUNT is 0x00000010 */
#define FAN_MARK_IGNORED_MASK 0x00000020
#define FAN_MARK_IGNORED_SURV_MODIFY 0x00000040
#define FAN_MARK_FLUSH 0x00000080
/* FAN_MARK_FILESYSTEM is 0x00000100 */
#define FAN_MARK_EVICTABLE 0x00000200
/* This bit is mutually exclusive with FAN_MARK_IGNORED_MASK bit */
#define FAN_MARK_IGNORE 0x00000400
/* These are NOT bitwise flags. Both bits can be used togther. */
#define FAN_MARK_INODE 0x00000000
#define FAN_MARK_MOUNT 0x00000010
#define FAN_MARK_FILESYSTEM 0x00000100
#define FAN_MARK_MNTNS 0x00000110
/*
* Convenience macro - FAN_MARK_IGNORE requires FAN_MARK_IGNORED_SURV_MODIFY
* for non-inode mark types.
*/
#define FAN_MARK_IGNORE_SURV (FAN_MARK_IGNORE | FAN_MARK_IGNORED_SURV_MODIFY)
/* Deprecated - do not use this in programs and do not add new flags here! */
#define FAN_ALL_MARK_FLAGS (FAN_MARK_ADD |\
FAN_MARK_REMOVE |\
FAN_MARK_DONT_FOLLOW |\
FAN_MARK_ONLYDIR |\
FAN_MARK_MOUNT |\
FAN_MARK_IGNORED_MASK |\
FAN_MARK_IGNORED_SURV_MODIFY |\
FAN_MARK_FLUSH)
/* Deprecated - do not use this in programs and do not add new flags here! */
#define FAN_ALL_EVENTS (FAN_ACCESS |\
FAN_MODIFY |\
FAN_CLOSE |\
FAN_OPEN)
/*
* All events which require a permission response from userspace
*/
/* Deprecated - do not use this in programs and do not add new flags here! */
#define FAN_ALL_PERM_EVENTS (FAN_OPEN_PERM |\
FAN_ACCESS_PERM)
/* Deprecated - do not use this in programs and do not add new flags here! */
#define FAN_ALL_OUTGOING_EVENTS (FAN_ALL_EVENTS |\
FAN_ALL_PERM_EVENTS |\
FAN_Q_OVERFLOW)
#define FANOTIFY_METADATA_VERSION 3
struct fanotify_event_metadata {
__u32 event_len;
__u8 vers;
__u8 reserved;
__u16 metadata_len;
__aligned_u64 mask;
__s32 fd;
__s32 pid;
};
#define FAN_EVENT_INFO_TYPE_FID 1
#define FAN_EVENT_INFO_TYPE_DFID_NAME 2
#define FAN_EVENT_INFO_TYPE_DFID 3
#define FAN_EVENT_INFO_TYPE_PIDFD 4
#define FAN_EVENT_INFO_TYPE_ERROR 5
#define FAN_EVENT_INFO_TYPE_RANGE 6
#define FAN_EVENT_INFO_TYPE_MNT 7
/* Special info types for FAN_RENAME */
#define FAN_EVENT_INFO_TYPE_OLD_DFID_NAME 10
/* Reserved for FAN_EVENT_INFO_TYPE_OLD_DFID 11 */
#define FAN_EVENT_INFO_TYPE_NEW_DFID_NAME 12
/* Reserved for FAN_EVENT_INFO_TYPE_NEW_DFID 13 */
/* Variable length info record following event metadata */
struct fanotify_event_info_header {
__u8 info_type;
__u8 pad;
__u16 len;
};
/*
* Unique file identifier info record.
* This structure is used for records of types FAN_EVENT_INFO_TYPE_FID,
* FAN_EVENT_INFO_TYPE_DFID and FAN_EVENT_INFO_TYPE_DFID_NAME.
* For FAN_EVENT_INFO_TYPE_DFID_NAME there is additionally a null terminated
* name immediately after the file handle.
*/
struct fanotify_event_info_fid {
struct fanotify_event_info_header hdr;
__kernel_fsid_t fsid;
/*
* Following is an opaque struct file_handle that can be passed as
* an argument to open_by_handle_at(2).
*/
unsigned char handle[];
};
/*
* This structure is used for info records of type FAN_EVENT_INFO_TYPE_PIDFD.
* It holds a pidfd for the pid that was responsible for generating an event.
*/
struct fanotify_event_info_pidfd {
struct fanotify_event_info_header hdr;
__s32 pidfd;
};
struct fanotify_event_info_error {
struct fanotify_event_info_header hdr;
__s32 error;
__u32 error_count;
};
struct fanotify_event_info_range {
struct fanotify_event_info_header hdr;
__u32 pad;
__u64 offset;
__u64 count;
};
struct fanotify_event_info_mnt {
struct fanotify_event_info_header hdr;
__u64 mnt_id;
};
/*
* User space may need to record additional information about its decision.
* The extra information type records what kind of information is included.
* The default is none. We also define an extra information buffer whose
* size is determined by the extra information type.
*
* If the information type is Audit Rule, then the information following
* is the rule number that triggered the user space decision that
* requires auditing.
*/
#define FAN_RESPONSE_INFO_NONE 0
#define FAN_RESPONSE_INFO_AUDIT_RULE 1
struct fanotify_response {
__s32 fd;
__u32 response;
};
struct fanotify_response_info_header {
__u8 type;
__u8 pad;
__u16 len;
};
struct fanotify_response_info_audit_rule {
struct fanotify_response_info_header hdr;
__u32 rule_number;
__u32 subj_trust;
__u32 obj_trust;
};
/* Legit userspace responses to a _PERM event */
#define FAN_ALLOW 0x01
#define FAN_DENY 0x02
/* errno other than EPERM can specified in upper byte of deny response */
#define FAN_ERRNO_BITS 8
#define FAN_ERRNO_SHIFT (32 - FAN_ERRNO_BITS)
#define FAN_ERRNO_MASK ((1 << FAN_ERRNO_BITS) - 1)
#define FAN_DENY_ERRNO(err) \
(FAN_DENY | ((((__u32)(err)) & FAN_ERRNO_MASK) << FAN_ERRNO_SHIFT))
#define FAN_AUDIT 0x10 /* Bitmask to create audit record for result */
#define FAN_INFO 0x20 /* Bitmask to indicate additional information */
/* No fd set in event */
#define FAN_NOFD -1
#define FAN_NOPIDFD FAN_NOFD
#define FAN_EPIDFD -2
/* Helper functions to deal with fanotify_event_metadata buffers */
#define FAN_EVENT_METADATA_LEN (sizeof(struct fanotify_event_metadata))
#define FAN_EVENT_NEXT(meta, len) ((len) -= (meta)->event_len, \
(struct fanotify_event_metadata*)(((char *)(meta)) + \
(meta)->event_len))
#define FAN_EVENT_OK(meta, len) ((long)(len) >= (long)FAN_EVENT_METADATA_LEN && \
(long)(meta)->event_len >= (long)FAN_EVENT_METADATA_LEN && \
(long)(meta)->event_len <= (long)(len))
#endif /* _UAPI_LINUX_FANOTIFY_H */

235
tools/include/uapi/linux/mount.h Normal file
View File

@@ -0,0 +1,235 @@
#ifndef _UAPI_LINUX_MOUNT_H
#define _UAPI_LINUX_MOUNT_H
#include <linux/types.h>
/*
* These are the fs-independent mount-flags: up to 32 flags are supported
*
* Usage of these is restricted within the kernel to core mount(2) code and
* callers of sys_mount() only. Filesystems should be using the SB_*
* equivalent instead.
*/
#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_DIRSYNC 128 /* Directory modifications are synchronous */
#define MS_NOSYMFOLLOW 256 /* Do not follow symlinks */
#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_MOVE 8192
#define MS_REC 16384
#define MS_VERBOSE 32768 /* War is peace. Verbosity is silence.
MS_VERBOSE is deprecated. */
#define MS_SILENT 32768
#define MS_POSIXACL (1<<16) /* VFS does not apply the umask */
#define MS_UNBINDABLE (1<<17) /* change to unbindable */
#define MS_PRIVATE (1<<18) /* change to private */
#define MS_SLAVE (1<<19) /* change to slave */
#define MS_SHARED (1<<20) /* change to shared */
#define MS_RELATIME (1<<21) /* Update atime relative to mtime/ctime. */
#define MS_KERNMOUNT (1<<22) /* this is a kern_mount call */
#define MS_I_VERSION (1<<23) /* Update inode I_version field */
#define MS_STRICTATIME (1<<24) /* Always perform atime updates */
#define MS_LAZYTIME (1<<25) /* Update the on-disk [acm]times lazily */
/* These sb flags are internal to the kernel */
#define MS_SUBMOUNT (1<<26)
#define MS_NOREMOTELOCK (1<<27)
#define MS_NOSEC (1<<28)
#define MS_BORN (1<<29)
#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_I_VERSION|\
MS_LAZYTIME)
/*
* Old magic mount flag and mask
*/
#define MS_MGC_VAL 0xC0ED0000
#define MS_MGC_MSK 0xffff0000
/*
* 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() */
/*
* 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 */
#define MOVE_MOUNT_BENEATH 0x00000200 /* Mount beneath top mount */
#define MOVE_MOUNT__MASK 0x00000377
/*
* fsopen() flags.
*/
#define FSOPEN_CLOEXEC 0x00000001
/*
* fspick() flags.
*/
#define FSPICK_CLOEXEC 0x00000001
#define FSPICK_SYMLINK_NOFOLLOW 0x00000002
#define FSPICK_NO_AUTOMOUNT 0x00000004
#define FSPICK_EMPTY_PATH 0x00000008
/*
* The type of fsconfig() call made.
*/
enum fsconfig_command {
FSCONFIG_SET_FLAG = 0, /* Set parameter, supplying no value */
FSCONFIG_SET_STRING = 1, /* Set parameter, supplying a string value */
FSCONFIG_SET_BINARY = 2, /* Set parameter, supplying a binary blob value */
FSCONFIG_SET_PATH = 3, /* Set parameter, supplying an object by path */
FSCONFIG_SET_PATH_EMPTY = 4, /* Set parameter, supplying an object by (empty) path */
FSCONFIG_SET_FD = 5, /* Set parameter, supplying an object by fd */
FSCONFIG_CMD_CREATE = 6, /* Create new or reuse existing superblock */
FSCONFIG_CMD_RECONFIGURE = 7, /* Invoke superblock reconfiguration */
FSCONFIG_CMD_CREATE_EXCL = 8, /* Create new superblock, fail if reusing existing superblock */
};
/*
* fsmount() flags.
*/
#define FSMOUNT_CLOEXEC 0x00000001
/*
* Mount attributes.
*/
#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 */
/*
* mount_setattr()
*/
struct mount_attr {
__u64 attr_set;
__u64 attr_clr;
__u64 propagation;
__u64 userns_fd;
};
/* List of all mount_attr versions. */
#define MOUNT_ATTR_SIZE_VER0 32 /* sizeof first published struct */
/*
* Structure for getting mount/superblock/filesystem info with statmount(2).
*
* The interface is similar to statx(2): individual fields or groups can be
* selected with the @mask argument of statmount(). Kernel will set the @mask
* field according to the supported fields.
*
* If string fields are selected, then the caller needs to pass a buffer that
* has space after the fixed part of the structure. Nul terminated strings are
* copied there and offsets relative to @str are stored in the relevant fields.
* If the buffer is too small, then EOVERFLOW is returned. The actually used
* size is returned in @size.
*/
struct statmount {
__u32 size; /* Total size, including strings */
__u32 mnt_opts; /* [str] Options (comma separated, escaped) */
__u64 mask; /* What results were written */
__u32 sb_dev_major; /* Device ID */
__u32 sb_dev_minor;
__u64 sb_magic; /* ..._SUPER_MAGIC */
__u32 sb_flags; /* SB_{RDONLY,SYNCHRONOUS,DIRSYNC,LAZYTIME} */
__u32 fs_type; /* [str] Filesystem type */
__u64 mnt_id; /* Unique ID of mount */
__u64 mnt_parent_id; /* Unique ID of parent (for root == mnt_id) */
__u32 mnt_id_old; /* Reused IDs used in proc/.../mountinfo */
__u32 mnt_parent_id_old;
__u64 mnt_attr; /* MOUNT_ATTR_... */
__u64 mnt_propagation; /* MS_{SHARED,SLAVE,PRIVATE,UNBINDABLE} */
__u64 mnt_peer_group; /* ID of shared peer group */
__u64 mnt_master; /* Mount receives propagation from this ID */
__u64 propagate_from; /* Propagation from in current namespace */
__u32 mnt_root; /* [str] Root of mount relative to root of fs */
__u32 mnt_point; /* [str] Mountpoint relative to current root */
__u64 mnt_ns_id; /* ID of the mount namespace */
__u32 fs_subtype; /* [str] Subtype of fs_type (if any) */
__u32 sb_source; /* [str] Source string of the mount */
__u32 opt_num; /* Number of fs options */
__u32 opt_array; /* [str] Array of nul terminated fs options */
__u32 opt_sec_num; /* Number of security options */
__u32 opt_sec_array; /* [str] Array of nul terminated security options */
__u64 supported_mask; /* Mask flags that this kernel supports */
__u32 mnt_uidmap_num; /* Number of uid mappings */
__u32 mnt_uidmap; /* [str] Array of uid mappings (as seen from callers namespace) */
__u32 mnt_gidmap_num; /* Number of gid mappings */
__u32 mnt_gidmap; /* [str] Array of gid mappings (as seen from callers namespace) */
__u64 __spare2[43];
char str[]; /* Variable size part containing strings */
};
/*
* Structure for passing mount ID and miscellaneous parameters to statmount(2)
* and listmount(2).
*
* For statmount(2) @param represents the request mask.
* For listmount(2) @param represents the last listed mount id (or zero).
*/
struct mnt_id_req {
__u32 size;
__u32 spare;
__u64 mnt_id;
__u64 param;
__u64 mnt_ns_id;
};
/* List of all mnt_id_req versions. */
#define MNT_ID_REQ_SIZE_VER0 24 /* sizeof first published struct */
#define MNT_ID_REQ_SIZE_VER1 32 /* sizeof second published struct */
/*
* @mask bits for statmount(2)
*/
#define STATMOUNT_SB_BASIC 0x00000001U /* Want/got sb_... */
#define STATMOUNT_MNT_BASIC 0x00000002U /* Want/got mnt_... */
#define STATMOUNT_PROPAGATE_FROM 0x00000004U /* Want/got propagate_from */
#define STATMOUNT_MNT_ROOT 0x00000008U /* Want/got mnt_root */
#define STATMOUNT_MNT_POINT 0x00000010U /* Want/got mnt_point */
#define STATMOUNT_FS_TYPE 0x00000020U /* Want/got fs_type */
#define STATMOUNT_MNT_NS_ID 0x00000040U /* Want/got mnt_ns_id */
#define STATMOUNT_MNT_OPTS 0x00000080U /* Want/got mnt_opts */
#define STATMOUNT_FS_SUBTYPE 0x00000100U /* Want/got fs_subtype */
#define STATMOUNT_SB_SOURCE 0x00000200U /* Want/got sb_source */
#define STATMOUNT_OPT_ARRAY 0x00000400U /* Want/got opt_... */
#define STATMOUNT_OPT_SEC_ARRAY 0x00000800U /* Want/got opt_sec... */
#define STATMOUNT_SUPPORTED_MASK 0x00001000U /* Want/got supported mask flags */
#define STATMOUNT_MNT_UIDMAP 0x00002000U /* Want/got uidmap... */
#define STATMOUNT_MNT_GIDMAP 0x00004000U /* Want/got gidmap... */
/*
* Special @mnt_id values that can be passed to listmount
*/
#define LSMT_ROOT 0xffffffffffffffff /* root mount */
#define LISTMOUNT_REVERSE (1 << 0) /* List later mounts first */
#endif /* _UAPI_LINUX_MOUNT_H */

45
tools/include/uapi/linux/nsfs.h Normal file
View File

@@ -0,0 +1,45 @@
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __LINUX_NSFS_H
#define __LINUX_NSFS_H
#include <linux/ioctl.h>
#include <linux/types.h>
#define NSIO 0xb7
/* Returns a file descriptor that refers to an owning user namespace */
#define NS_GET_USERNS _IO(NSIO, 0x1)
/* Returns a file descriptor that refers to a parent namespace */
#define NS_GET_PARENT _IO(NSIO, 0x2)
/* Returns the type of namespace (CLONE_NEW* value) referred to by
file descriptor */
#define NS_GET_NSTYPE _IO(NSIO, 0x3)
/* Get owner UID (in the caller's user namespace) for a user namespace */
#define NS_GET_OWNER_UID _IO(NSIO, 0x4)
/* Get the id for a mount namespace */
#define NS_GET_MNTNS_ID _IOR(NSIO, 0x5, __u64)
/* Translate pid from target pid namespace into the caller's pid namespace. */
#define NS_GET_PID_FROM_PIDNS _IOR(NSIO, 0x6, int)
/* Return thread-group leader id of pid in the callers pid namespace. */
#define NS_GET_TGID_FROM_PIDNS _IOR(NSIO, 0x7, int)
/* Translate pid from caller's pid namespace into a target pid namespace. */
#define NS_GET_PID_IN_PIDNS _IOR(NSIO, 0x8, int)
/* Return thread-group leader id of pid in the target pid namespace. */
#define NS_GET_TGID_IN_PIDNS _IOR(NSIO, 0x9, int)
struct mnt_ns_info {
__u32 size;
__u32 nr_mounts;
__u64 mnt_ns_id;
};
#define MNT_NS_INFO_SIZE_VER0 16 /* size of first published struct */
/* Get information about namespace. */
#define NS_MNT_GET_INFO _IOR(NSIO, 10, struct mnt_ns_info)
/* Get next namespace. */
#define NS_MNT_GET_NEXT _IOR(NSIO, 11, struct mnt_ns_info)
/* Get previous namespace. */
#define NS_MNT_GET_PREV _IOR(NSIO, 12, struct mnt_ns_info)
#endif /* __LINUX_NSFS_H */