+ /* OPTIONAL: If root_directory_is_special is set: provide this
+ * callback to determine whether the path corresponds to the root of the
+ * target volume (%true) or not (%false). */
+ bool (*target_is_root)
+ (const tchar *target);
+
+ /* REQUIRED: Create a file. */
+ int (*create_file)
+ (const tchar *path, struct apply_ctx *ctx, u64 *cookie_ret);
+
+ /* REQUIRED: Create a directory. */
+ int (*create_directory)
+ (const tchar *path, struct apply_ctx *ctx, u64 *cookie_ret);
+
+ /* OPTIONAL: Create a hard link. In start_extract(), set
+ * ctx->supported_features.hard_links if supported. */
+ int (*create_hardlink)
+ (const tchar *oldpath, const tchar *newpath,
+ struct apply_ctx *ctx);
+
+ /* OPTIONAL: Create a symbolic link. In start_extract(), set
+ * ctx->supported_features.symlink_reparse_points if supported. */
+ int (*create_symlink)
+ (const tchar *oldpath, const tchar *newpath,
+ struct apply_ctx *ctx);
+
+ /* REQUIRED: Extract unnamed data stream. */
+ int (*extract_unnamed_stream)
+ (file_spec_t file, struct wim_lookup_table_entry *lte,
+ struct apply_ctx *ctx, struct wim_dentry *dentry);
+
+ /* OPTIONAL: Extracted named data stream. In start_extract(), set
+ * ctx->supported_features.alternate_data_streams if supported. */
+ int (*extract_named_stream)
+ (file_spec_t file, const utf16lechar *stream_name,
+ size_t stream_name_nchars, struct wim_lookup_table_entry *lte,
+ struct apply_ctx *ctx);
+
+ /* OPTIONAL: Extracted encrypted stream. In start_extract(), set
+ * ctx->supported_features.encrypted_files if supported. */
+ int (*extract_encrypted_stream)
+ (const tchar *path, struct wim_lookup_table_entry *lte,
+ struct apply_ctx *ctx);
+
+ /* OPTIONAL: Set file attributes. Calling code calls this if non-NULL.
+ */
+ int (*set_file_attributes)
+ (const tchar *path, u32 attributes, struct apply_ctx *ctx,
+ unsigned pass);
+
+ /* OPTIONAL: Set reparse data. In start_extract(), set
+ * ctx->supported_features.reparse_data if supported. */
+ int (*set_reparse_data)
+ (const tchar *path, const u8 *rpbuf, u16 rpbuflen,
+ struct apply_ctx *ctx);
+
+ /* OPTIONAL: Set short (DOS) filename. In start_extract(), set
+ * ctx->supported_features.short_name if supported. */
+ int (*set_short_name)
+ (const tchar *path, const utf16lechar *short_name,
+ size_t short_name_nchars, struct apply_ctx *ctx);
+
+ /* OPTIONAL: Set Windows NT security descriptor. In start_extract(),
+ * set ctx->supported_features.security_descriptors if supported. */
+ int (*set_security_descriptor)
+ (const tchar *path, const u8 *desc, size_t desc_size,
+ struct apply_ctx *ctx);
+
+ /* OPTIONAL: Set wimlib-specific UNIX data. In start_extract(), set
+ * ctx->supported_features.unix_data if supported. */
+ int (*set_unix_data)
+ (const tchar *path, const struct wimlib_unix_data *data,
+ struct apply_ctx *ctx);
+
+ /* OPTIONAL: Set timestamps. Calling code calls this if non-NULL. */
+ int (*set_timestamps)
+ (const tchar *path, u64 creation_time, u64 last_write_time,
+ u64 last_access_time, struct apply_ctx *ctx);
+
+ /* OPTIONAL: Called after the extraction operation has succeeded. */
+ int (*finish_extract)
+ (struct apply_ctx *ctx);
+
+ /* OPTIONAL: Called after the extraction operation has failed. */
+ int (*abort_extract)
+ (struct apply_ctx *ctx);
+
+ /* REQUIRED: Path separator character to use when building paths. */
+ tchar path_separator;
+
+ /* REQUIRED: Maximum path length, in tchars, including the
+ * null-terminator. */
+ unsigned path_max;
+
+ /* OPTIONAL: String to prefix every path with. */
+ const tchar *path_prefix;
+
+ /* OPTIONAL: Length of path_prefix in tchars. */
+ unsigned path_prefix_nchars;
+
+ /* OPTIONAL: Set to 1 if paths must be prefixed by the name of the
+ * extraction target (i.e. if it's interpreted as a directory). */
+ unsigned requires_target_in_paths : 1;
+
+ /* OPTIONAL: Like above, but operations require real (absolute) path.
+ * */
+ unsigned requires_realtarget_in_paths : 1;
+
+ /* OPTIONAL: Set to 1 if realpath() can be used to get the real
+ * (absolute) path of a file on the target volume before it's been
+ * created. */
+ unsigned realpath_works_on_nonexisting_files : 1;
+
+ /* OPTIONAL: Set to 1 if this extraction mode supports case sensitive
+ * filenames. */
+ unsigned supports_case_sensitive_filenames : 1;
+
+ /* OPTIONAL: Set to 1 if the root directory of the volume (see
+ * target_is_root() callback) should not be explicitly extracted. */
+ unsigned root_directory_is_special : 1;
+
+ /* OPTIONAL: Set to 1 if extraction cookie, or inode number, is stored
+ * in create_file() and create_directory() callbacks. This cookie will
+ * then be passed to callbacks taking a 'file_spec_t', rather than the
+ * path. */
+ unsigned uses_cookies : 1;
+
+ /* OPTIONAL: Set to 1 if set_file_attributes() needs to be called a
+ * second time towards the end of the extraction. */
+ unsigned requires_final_set_attributes_pass : 1;
+
+ /* OPTIONAL: Set to 1 if extract_encrypted_stream() must be used to
+ * create encrypted files. */
+ unsigned extract_encrypted_stream_creates_file : 1;
+
+ /* OPTIONAL: Set to 1 if a link to a file with corresponding short name
+ * must be created before all links to the same file without
+ * corresponding short names. */
+ unsigned requires_short_name_reordering : 1;