/* SPDX-License-Identifier: MIT */
/*
* VirtualBox Shared Folders: host interface definition.
*
* Copyright (C) 2006-2018 Oracle Corporation
*/
#ifndef SHFL_HOSTINTF_H
#define SHFL_HOSTINTF_H
#include <linux/vbox_vmmdev_types.h>
/* The max in/out buffer size for a FN_READ or FN_WRITE call */
#define SHFL_MAX_RW_COUNT (16 * SZ_1M)
/*
* Structures shared between guest and the service
* can be relocated and use offsets to point to variable
* length parts.
*
* Shared folders protocol works with handles.
* Before doing any action on a file system object,
* one have to obtain the object handle via a SHFL_FN_CREATE
* request. A handle must be closed with SHFL_FN_CLOSE.
*/
enum {
SHFL_FN_QUERY_MAPPINGS = 1, /* Query mappings changes. */
SHFL_FN_QUERY_MAP_NAME = 2, /* Query map name. */
SHFL_FN_CREATE = 3, /* Open/create object. */
SHFL_FN_CLOSE = 4, /* Close object handle. */
SHFL_FN_READ = 5, /* Read object content. */
SHFL_FN_WRITE = 6, /* Write new object content. */
SHFL_FN_LOCK = 7, /* Lock/unlock a range in the object. */
SHFL_FN_LIST = 8, /* List object content. */
SHFL_FN_INFORMATION = 9, /* Query/set object information. */
/* Note function number 10 is not used! */
SHFL_FN_REMOVE = 11, /* Remove object */
SHFL_FN_MAP_FOLDER_OLD = 12, /* Map folder (legacy) */
SHFL_FN_UNMAP_FOLDER = 13, /* Unmap folder */
SHFL_FN_RENAME = 14, /* Rename object */
SHFL_FN_FLUSH = 15, /* Flush file */
SHFL_FN_SET_UTF8 = 16, /* Select UTF8 filename encoding */
SHFL_FN_MAP_FOLDER = 17, /* Map folder */
SHFL_FN_READLINK = 18, /* Read symlink dest (as of VBox 4.0) */
SHFL_FN_SYMLINK = 19, /* Create symlink (as of VBox 4.0) */
SHFL_FN_SET_SYMLINKS = 20, /* Ask host to show symlinks (4.0+) */
};
/* Root handles for a mapping are of type u32, Root handles are unique. */
#define SHFL_ROOT_NIL UINT_MAX
/* Shared folders handle for an opened object are of type u64. */
#define SHFL_HANDLE_NIL ULLONG_MAX
/* Hardcoded maximum length (in chars) of a shared folder name. */
#define SHFL_MAX_LEN (256)
/* Hardcoded maximum number of shared folder mapping available to the guest. */
#define SHFL_MAX_MAPPINGS (64)
/** Shared folder string buffer structure. */
struct shfl_string {
/** Allocated size of the string member in bytes. */
u16 size;
/** Length of string without trailing nul in bytes. */
u16 length;
/** UTF-8 or UTF-16 string. Nul terminated. */
union {
u8 legacy_padding[2];
DECLARE_FLEX_ARRAY(u8, utf8);
DECLARE_FLEX_ARRAY(u16, utf16);
} string;
};
VMMDEV_ASSERT_SIZE(shfl_string, 6);
/* The size of shfl_string w/o the string part. */
#define SHFLSTRING_HEADER_SIZE 4
/* Calculate size of the string. */
static inline u32 shfl_string_buf_size(const struct shfl_string *string)
{
return string ? SHFLSTRING_HEADER_SIZE + string->size : 0;
}
/* Set user id on execution (S_ISUID). */
#define SHFL_UNIX_ISUID 0004000U
/* Set group id on execution (S_ISGID). */
#define SHFL_UNIX_ISGID 0002000U
/* Sticky bit (S_ISVTX / S_ISTXT). */
#define SHFL_UNIX_ISTXT 0001000U
/* Owner readable (S_IRUSR). */
#define SHFL_UNIX_IRUSR 0000400U
/* Owner writable (S_IWUSR). */
#define SHFL_UNIX_IWUSR 0000200U
/* Owner executable (S_IXUSR). */
#define SHFL_UNIX_IXUSR 0000100U
/* Group readable (S_IRGRP). */
#define SHFL_UNIX_IRGRP 0000040U
/* Group writable (S_IWGRP). */
#define SHFL_UNIX_IWGRP 0000020U
/* Group executable (S_IXGRP). */
#define SHFL_UNIX_IXGRP 0000010U
/* Other readable (S_IROTH). */
#define SHFL_UNIX_IROTH 0000004U
/* Other writable (S_IWOTH). */
#define SHFL_UNIX_IWOTH 0000002U
/* Other executable (S_IXOTH). */
#define SHFL_UNIX_IXOTH 0000001U
/* Named pipe (fifo) (S_IFIFO). */
#define SHFL_TYPE_FIFO 0010000U
/* Character device (S_IFCHR). */
#define SHFL_TYPE_DEV_CHAR 0020000U
/* Directory (S_IFDIR). */
#define SHFL_TYPE_DIRECTORY 0040000U
/* Block device (S_IFBLK). */
#define SHFL_TYPE_DEV_BLOCK 0060000U
/* Regular file (S_IFREG). */
#define SHFL_TYPE_FILE 0100000U
/* Symbolic link (S_IFLNK). */
#define SHFL_TYPE_SYMLINK 0120000U
/* Socket (S_IFSOCK). */
#define SHFL_TYPE_SOCKET 0140000U
/* Whiteout (S_IFWHT). */
#define SHFL_TYPE_WHITEOUT 0160000U
/* Type mask (S_IFMT). */
#define SHFL_TYPE_MASK 0170000U
/* Checks the mode flags indicate a directory (S_ISDIR). */
#define SHFL_IS_DIRECTORY(m) (((m) & SHFL_TYPE_MASK) == SHFL_TYPE_DIRECTORY)
/* Checks the mode flags indicate a symbolic link (S_ISLNK). */
#define SHFL_IS_SYMLINK(m) (((m) & SHFL_TYPE_MASK) == SHFL_TYPE_SYMLINK)
/** The available additional information in a shfl_fsobjattr object. */
enum shfl_fsobjattr_add {
/** No additional information is available / requested. */
SHFLFSOBJATTRADD_NOTHING = 1,
/**
* The additional unix attributes (shfl_fsobjattr::u::unix_attr) are
* available / requested.
*/
SHFLFSOBJATTRADD_UNIX,
/**
* The additional extended attribute size (shfl_fsobjattr::u::size) is
* available / requested.
*/
SHFLFSOBJATTRADD_EASIZE,
/**
* The last valid item (inclusive).
* The valid range is SHFLFSOBJATTRADD_NOTHING thru
* SHFLFSOBJATTRADD_LAST.
*/
SHFLFSOBJATTRADD_LAST = SHFLFSOBJATTRADD_EASIZE,
/** The usual 32-bit hack. */
SHFLFSOBJATTRADD_32BIT_SIZE_HACK = 0x7fffffff
};
/**
* Additional unix Attributes, these are available when
* shfl_fsobjattr.additional == SHFLFSOBJATTRADD_UNIX.
*/
struct shfl_fsobjattr_unix {
/**
* The user owning the filesystem object (st_uid).
* This field is ~0U if not supported.
*/
u32 uid;
/**
* The group the filesystem object is assigned (st_gid).
* This field is ~0U if not supported.
*/
u32 gid;
/**
* Number of hard links to this filesystem object (st_nlink).
* This field is 1 if the filesystem doesn't support hardlinking or
* the information isn't available.
*/
u32 hardlinks;
/**
* The device number of the device which this filesystem object resides
* on (st_dev). This field is 0 if this information is not available.
*/
u32 inode_id_device;
/**
* The unique identifier (within the filesystem) of this filesystem
* object (st_ino). Together with inode_id_device, this field can be
* used as a OS wide unique id, when both their values are not 0.
* This field is 0 if the information is not available.
*/
u64 inode_id;
/**
* User flags (st_flags).
* This field is 0 if this information is not available.
*/
u32 flags;
/**
* The current generation number (st_gen).
* This field is 0 if this information is not available.
*/
u32 generation_id;
/**
* The device number of a char. or block device type object (st_rdev).
* This field is 0 if the file isn't a char. or block device or when
* the OS doesn't use the major+minor device idenfication scheme.
*/
u32 device;
} __packed;
/** Extended attribute size. */
struct shfl_fsobjattr_easize {
/** Size of EAs. */
s64 cb;
} __packed;
/** Shared folder filesystem object attributes. */
struct shfl_fsobjattr {
/** Mode flags (st_mode). SHFL_UNIX_*, SHFL_TYPE_*, and SHFL_DOS_*. */
u32 mode;
/** The additional attributes available. */
enum shfl_fsobjattr_add additional;
/**
* Additional attributes.
*
* Unless explicitly specified to an API, the API can provide additional
* data as it is provided by the underlying OS.
*/
union {
struct shfl_fsobjattr_unix unix_attr;
struct shfl_fsobjattr_easize size;
} __packed u;
} __packed;
VMMDEV_ASSERT_SIZE(shfl_fsobjattr, 44);
struct shfl_timespec {
s64 ns_relative_to_unix_epoch;
};
/** Filesystem object information structure. */
struct shfl_fsobjinfo {
/**
* Logical size (st_size).
* For normal files this is the size of the file.
* For symbolic links, this is the length of the path name contained
* in the symbolic link.
* For other objects this fields needs to be specified.
*/
s64 size;
/** Disk allocation size (st_blocks * DEV_BSIZE). */
s64 allocated;
/** Time of last access (st_atime). */
struct shfl_timespec access_time;
/** Time of last data modification (st_mtime). */
struct shfl_timespec modification_time;
/**
* Time of last status change (st_ctime).
* If not available this is set to modification_time.
*/
struct shfl_timespec change_time;
/**
* Time of file birth (st_birthtime).
* If not available this is set to change_time.
*/
struct shfl_timespec birth_time;
/** Attributes. */
struct shfl_fsobjattr attr;
} __packed;
VMMDEV_ASSERT_SIZE(shfl_fsobjinfo, 92);
/**
* result of an open/create request.
* Along with handle value the result code
* identifies what has happened while
* trying to open the object.
*/
enum shfl_create_result {
SHFL_NO_RESULT,
/** Specified path does not exist. */
SHFL_PATH_NOT_FOUND,
/** Path to file exists, but the last component does not. */
SHFL_FILE_NOT_FOUND,
/** File already exists and either has been opened or not. */
SHFL_FILE_EXISTS,
/** New file was created. */
SHFL_FILE_CREATED,
/** Existing file was replaced or overwritten. */
SHFL_FILE_REPLACED
};
/* No flags. Initialization value. */
#define SHFL_CF_NONE (0x00000000)
/*
* Only lookup the object, do not return a handle. When this is set all other
* flags are ignored.
*/
#define SHFL_CF_LOOKUP (0x00000001)
/*
* Open parent directory of specified object.
* Useful for the corresponding Windows FSD flag
* and for opening paths like \\dir\\*.* to search the 'dir'.
*/
#define SHFL_CF_OPEN_TARGET_DIRECTORY (0x00000002)
/* Create/open a directory. */
#define SHFL_CF_DIRECTORY (0x00000004)
/*
* Open/create action to do if object exists
* and if the object does not exists.
* REPLACE file means atomically DELETE and CREATE.
* OVERWRITE file means truncating the file to 0 and
* setting new size.
* When opening an existing directory REPLACE and OVERWRITE
* actions are considered invalid, and cause returning
* FILE_EXISTS with NIL handle.
*/
#define SHFL_CF_ACT_MASK_IF_EXISTS (0x000000f0)
#define SHFL_CF_ACT_MASK_IF_NEW (0x00000f00)
/* What to do if object exists. */
#define SHFL_CF_ACT_OPEN_IF_EXISTS (0x00000000)
#define SHFL_CF_ACT_FAIL_IF_EXISTS (0x00000010)
#define SHFL_CF_ACT_REPLACE_IF_EXISTS (0x00000020)
#define SHFL_CF_ACT_OVERWRITE_IF_EXISTS (0x00000030)
/* What to do if object does not exist. */
#define SHFL_CF_ACT_CREATE_IF_NEW (0x00000000)
#define SHFL_CF_ACT_FAIL_IF_NEW (0x00000100)
/* Read/write requested access for the object. */
#define SHFL_CF_ACCESS_MASK_RW (0x00003000)
/* No access requested. */
#define SHFL_CF_ACCESS_NONE (0x00000000)
/* Read access requested. */
#define SHFL_CF_ACCESS_READ (0x00001000)
/* Write access requested. */
#define SHFL_CF_ACCESS_WRITE (0x00002000)
/* Read/Write access requested. */
#define SHFL_CF_ACCESS_READWRITE (0x00003000)
/* Requested share access for the object. */
#define SHFL_CF_ACCESS_MASK_DENY (0x0000c000)
/* Allow any access. */
#define SHFL_CF_ACCESS_DENYNONE (0x00000000)
/* Do not allow read. */
#define SHFL_CF_ACCESS_DENYREAD (0x00004000)
/* Do not allow write. */
#define SHFL_CF_ACCESS_DENYWRITE (0x00008000)
/* Do not allow access. */
#define SHFL_CF_ACCESS_DENYALL (0x0000c000)
/* Requested access to attributes of the object. */
#define SHFL_CF_ACCESS_MASK_ATTR (0x00030000)
/* No access requested. */
#define SHFL_CF_ACCESS_ATTR_NONE (0x00000000)
/* Read access requested. */
#define SHFL_CF_ACCESS_ATTR_READ (0x00010000)
/* Write access requested. */
#define SHFL_CF_ACCESS_ATTR_WRITE (0x00020000)
/* Read/Write access requested. */
#define SHFL_CF_ACCESS_ATTR_READWRITE (0x00030000)
/*
* The file is opened in append mode.
* Ignored if SHFL_CF_ACCESS_WRITE is not set.
*/
#define SHFL_CF_ACCESS_APPEND (0x00040000)
/** Create parameters buffer struct for SHFL_FN_CREATE call */
struct shfl_createparms {
/** Returned handle of opened object. */
u64 handle;
/** Returned result of the operation */
enum shfl_create_result result;
/** SHFL_CF_* */
u32 create_flags;
/**
* Attributes of object to create and
* returned actual attributes of opened/created object.
*/
struct shfl_fsobjinfo info;
} __packed;
/** Shared Folder directory information */
struct shfl_dirinfo {
/** Full information about the object. */
struct shfl_fsobjinfo info;
/**
* The length of the short field (number of UTF16 chars).
* It is 16-bit for reasons of alignment.
*/
u16 short_name_len;
/**
* The short name for 8.3 compatibility.
* Empty string if not available.
*/
u16 short_name[14];
struct shfl_string name;
};
/** Shared folder filesystem properties. */
struct shfl_fsproperties {
/**
* The maximum size of a filesystem object name.
* This does not include the '\\0'.
*/
u32 max_component_len;
/**
* True if the filesystem is remote.
* False if the filesystem is local.
*/
bool remote;
/**
* True if the filesystem is case sensitive.
* False if the filesystem is case insensitive.
*/
bool case_sensitive;
/**
* True if the filesystem is mounted read only.
* False if the filesystem is mounted read write.
*/
bool read_only;
/**
* True if the filesystem can encode unicode object names.
* False if it can't.
*/
bool supports_unicode;
/**
* True if the filesystem is compresses.
* False if it isn't or we don't know.
*/
bool compressed;
/**
* True if the filesystem compresses of individual files.
* False if it doesn't or we don't know.
*/
bool file_compression;
};
VMMDEV_ASSERT_SIZE(shfl_fsproperties, 12);
struct shfl_volinfo {
s64 total_allocation_bytes;
s64 available_allocation_bytes;
u32 bytes_per_allocation_unit;
u32 bytes_per_sector;
u32 serial;
struct shfl_fsproperties properties;
};
/** SHFL_FN_MAP_FOLDER Parameters structure. */
struct shfl_map_folder {
/**
* pointer, in:
* Points to struct shfl_string buffer.
*/
struct vmmdev_hgcm_function_parameter path;
/**
* pointer, out: SHFLROOT (u32)
* Root handle of the mapping which name is queried.
*/
struct vmmdev_hgcm_function_parameter root;
/**
* pointer, in: UTF16
* Path delimiter
*/
struct vmmdev_hgcm_function_parameter delimiter;
/**
* pointer, in: SHFLROOT (u32)
* Case senstive flag
*/
struct vmmdev_hgcm_function_parameter case_sensitive;
};
/* Number of parameters */
#define SHFL_CPARMS_MAP_FOLDER (4)
/** SHFL_FN_UNMAP_FOLDER Parameters structure. */
struct shfl_unmap_folder {
/**
* pointer, in: SHFLROOT (u32)
* Root handle of the mapping which name is queried.
*/
struct vmmdev_hgcm_function_parameter root;
};
/* Number of parameters */
#define SHFL_CPARMS_UNMAP_FOLDER (1)
/** SHFL_FN_CREATE Parameters structure. */
struct shfl_create {
/**
* pointer, in: SHFLROOT (u32)
* Root handle of the mapping which name is queried.
*/
struct vmmdev_hgcm_function_parameter root;
/**
* pointer, in:
* Points to struct shfl_string buffer.
*/
struct vmmdev_hgcm_function_parameter path;
/**
* pointer, in/out:
* Points to struct shfl_createparms buffer.
*/
struct vmmdev_hgcm_function_parameter parms;
};
/* Number of parameters */
#define SHFL_CPARMS_CREATE (3)
/** SHFL_FN_CLOSE Parameters structure. */
struct shfl_close {
/**
* pointer, in: SHFLROOT (u32)
* Root handle of the mapping which name is queried.
*/
struct vmmdev_hgcm_function_parameter root;
/**
* value64, in:
* SHFLHANDLE (u64) of object to close.
*/
struct vmmdev_hgcm_function_parameter handle;
};
/* Number of parameters */
#define SHFL_CPARMS_CLOSE (2)
/** SHFL_FN_READ Parameters structure. */
struct shfl_read {
/**
* pointer, in: SHFLROOT (u32)
* Root handle of the mapping which name is queried.
*/
struct vmmdev_hgcm_function_parameter root;
/**
* value64, in:
* SHFLHANDLE (u64) of object to read from.
*/
struct vmmdev_hgcm_function_parameter handle;
/**
* value64, in:
* Offset to read from.
*/
struct vmmdev_hgcm_function_parameter offset;
/**
* value64, in/out:
* Bytes to read/How many were read.
*/
struct vmmdev_hgcm_function_parameter cb;
/**
* pointer, out:
* Buffer to place data to.
*/
struct vmmdev_hgcm_function_parameter buffer;
};
/* Number of parameters */
#define SHFL_CPARMS_READ (5)
/** SHFL_FN_WRITE Parameters structure. */
struct shfl_write {
/**
* pointer, in: SHFLROOT (u32)
* Root handle of the mapping which name is queried.
*/
struct vmmdev_hgcm_function_parameter root;
/**
* value64, in:
* SHFLHANDLE (u64) of object to write to.
*/
struct vmmdev_hgcm_function_parameter handle;
/**
* value64, in:
* Offset to write to.
*/
struct vmmdev_hgcm_function_parameter offset;
/**
* value64, in/out:
* Bytes to write/How many were written.
*/
struct vmmdev_hgcm_function_parameter cb;
/**
* pointer, in:
* Data to write.
*/
struct vmmdev_hgcm_function_parameter buffer;
};
/* Number of parameters */
#define SHFL_CPARMS_WRITE (5)
/*
* SHFL_FN_LIST
* Listing information includes variable length RTDIRENTRY[EX] structures.
*/
#define SHFL_LIST_NONE 0
#define SHFL_LIST_RETURN_ONE 1
/** SHFL_FN_LIST Parameters structure. */
struct shfl_list {
/**
* pointer, in: SHFLROOT (u32)
* Root handle of the mapping which name is queried.
*/
struct vmmdev_hgcm_function_parameter root;
/**
* value64, in:
* SHFLHANDLE (u64) of object to be listed.
*/
struct vmmdev_hgcm_function_parameter handle;
/**
* value32, in:
* List flags SHFL_LIST_*.
*/
struct vmmdev_hgcm_function_parameter flags;
/**
* value32, in/out:
* Bytes to be used for listing information/How many bytes were used.
*/
struct vmmdev_hgcm_function_parameter cb;
/**
* pointer, in/optional
* Points to struct shfl_string buffer that specifies a search path.
*/
struct vmmdev_hgcm_function_parameter path;
/**
* pointer, out:
* Buffer to place listing information to. (struct shfl_dirinfo)
*/
struct vmmdev_hgcm_function_parameter buffer;
/**
* value32, in/out:
* Indicates a key where the listing must be resumed.
* in: 0 means start from begin of object.
* out: 0 means listing completed.
*/
struct vmmdev_hgcm_function_parameter resume_point;
/**
* pointer, out:
* Number of files returned
*/
struct vmmdev_hgcm_function_parameter file_count;
};
/* Number of parameters */
#define SHFL_CPARMS_LIST (8)
/** SHFL_FN_READLINK Parameters structure. */
struct shfl_readLink {
/**
* pointer, in: SHFLROOT (u32)
* Root handle of the mapping which name is queried.
*/
struct vmmdev_hgcm_function_parameter root;
/**
* pointer, in:
* Points to struct shfl_string buffer.
*/
struct vmmdev_hgcm_function_parameter path;
/**
* pointer, out:
* Buffer to place data to.
*/
struct vmmdev_hgcm_function_parameter buffer;
};
/* Number of parameters */
#define SHFL_CPARMS_READLINK (3)
/* SHFL_FN_INFORMATION */
/* Mask of Set/Get bit. */
#define SHFL_INFO_MODE_MASK (0x1)
/* Get information */
#define SHFL_INFO_GET (0x0)
/* Set information */
#define SHFL_INFO_SET (0x1)
/* Get name of the object. */
#define SHFL_INFO_NAME (0x2)
/* Set size of object (extend/trucate); only applies to file objects */
#define SHFL_INFO_SIZE (0x4)
/* Get/Set file object info. */
#define SHFL_INFO_FILE (0x8)
/* Get volume information. */
#define SHFL_INFO_VOLUME (0x10)
/** SHFL_FN_INFORMATION Parameters structure. */
struct shfl_information {
/**
* pointer, in: SHFLROOT (u32)
* Root handle of the mapping which name is queried.
*/
struct vmmdev_hgcm_function_parameter root;
/**
* value64, in:
* SHFLHANDLE (u64) of object to be listed.
*/
struct vmmdev_hgcm_function_parameter handle;
/**
* value32, in:
* SHFL_INFO_*
*/
struct vmmdev_hgcm_function_parameter flags;
/**
* value32, in/out:
* Bytes to be used for information/How many bytes were used.
*/
struct vmmdev_hgcm_function_parameter cb;
/**
* pointer, in/out:
* Information to be set/get (shfl_fsobjinfo or shfl_string). Do not
* forget to set the shfl_fsobjinfo::attr::additional for a get
* operation as well.
*/
struct vmmdev_hgcm_function_parameter info;
};
/* Number of parameters */
#define SHFL_CPARMS_INFORMATION (5)
/* SHFL_FN_REMOVE */
#define SHFL_REMOVE_FILE (0x1)
#define SHFL_REMOVE_DIR (0x2)
#define SHFL_REMOVE_SYMLINK (0x4)
/** SHFL_FN_REMOVE Parameters structure. */
struct shfl_remove {
/**
* pointer, in: SHFLROOT (u32)
* Root handle of the mapping which name is queried.
*/
struct vmmdev_hgcm_function_parameter root;
/**
* pointer, in:
* Points to struct shfl_string buffer.
*/
struct vmmdev_hgcm_function_parameter path;
/**
* value32, in:
* remove flags (file/directory)
*/
struct vmmdev_hgcm_function_parameter flags;
};
#define SHFL_CPARMS_REMOVE (3)
/* SHFL_FN_RENAME */
#define SHFL_RENAME_FILE (0x1)
#define SHFL_RENAME_DIR (0x2)
#define SHFL_RENAME_REPLACE_IF_EXISTS (0x4)
/** SHFL_FN_RENAME Parameters structure. */
struct shfl_rename {
/**
* pointer, in: SHFLROOT (u32)
* Root handle of the mapping which name is queried.
*/
struct vmmdev_hgcm_function_parameter root;
/**
* pointer, in:
* Points to struct shfl_string src.
*/
struct vmmdev_hgcm_function_parameter src;
/**
* pointer, in:
* Points to struct shfl_string dest.
*/
struct vmmdev_hgcm_function_parameter dest;
/**
* value32, in:
* rename flags (file/directory)
*/
struct vmmdev_hgcm_function_parameter flags;
};
#define SHFL_CPARMS_RENAME (4)
/** SHFL_FN_SYMLINK Parameters structure. */
struct shfl_symlink {
/**
* pointer, in: SHFLROOT (u32)
* Root handle of the mapping which name is queried.
*/
struct vmmdev_hgcm_function_parameter root;
/**
* pointer, in:
* Points to struct shfl_string of path for the new symlink.
*/
struct vmmdev_hgcm_function_parameter new_path;
/**
* pointer, in:
* Points to struct shfl_string of destination for symlink.
*/
struct vmmdev_hgcm_function_parameter old_path;
/**
* pointer, out:
* Information about created symlink.
*/
struct vmmdev_hgcm_function_parameter info;
};
#define SHFL_CPARMS_SYMLINK (4)
#endif
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