* Defines common functionality for various SMB2/SMB3 file information classes used in
 * query and set file information operations, with constants for information levels.
 *
 * @author mbechler
 */
public interface FileInformation extends Decodable, Encodable {

    // information levels

    /**
     * File end-of-file information class constant.
     */
    byte FILE_ENDOFFILE_INFO = 20;

    /**

    void testConstantsAreUnique() {
        byte[] constants = { FileInformation.FILE_ENDOFFILE_INFO, FileInformation.FILE_BASIC_INFO, FileInformation.FILE_STANDARD_INFO,
                FileInformation.FILE_INTERNAL_INFO, FileInformation.FILE_RENAME_INFO };

        // Check all constants are unique
        for (int i = 0; i < constants.length; i++) {
            for (int j = i + 1; j < constants.length; j++) {

        // Test valid information levels
        assertEquals(0x0101, Trans2QueryPathInformation.mapInformationLevel(FileInformation.FILE_BASIC_INFO));
        assertEquals(0x0102, Trans2QueryPathInformation.mapInformationLevel(FileInformation.FILE_STANDARD_INFO));
        assertEquals(0x0104, Trans2QueryPathInformation.mapInformationLevel(FileInformation.FILE_ENDOFFILE_INFO));
    }

    @Test
    void testMapInformationLevelWithInvalidLevel() {

     * @return
     */
    static long mapInformationLevel(final int il) {
        switch (il) {
        case FileInformation.FILE_BASIC_INFO:
            return 0x0101;
        case FileInformation.FILE_STANDARD_INFO:
            return 0x0102;
        case FileInformation.FILE_ENDOFFILE_INFO:
            return 0x0104;
        }
        throw new IllegalArgumentException("Unsupported information level " + il);

        return 20 + 2 * this.fileName.length();
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.fscc.FileInformation#getFileInformationLevel()
     */
    @Override
    public byte getFileInformationLevel() {
        return FileInformation.FILE_RENAME_INFO;
    }

 *
 * @author mbechler
 */
public class FileEndOfFileInformation implements FileInformation, Encodable {

    private long endOfFile;

    /**
     * Default constructor for decoding.
     */
    public FileEndOfFileInformation() {
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.fscc.FileInformation#getFileInformationLevel()
     */
    @Override

        byte[] buffer = new byte[100];

        int result = response.readParametersWireFormat(buffer, 0, buffer.length);

        assertEquals(2, result);
    }

    @ParameterizedTest
    @ValueSource(bytes = { FileInformation.FILE_BASIC_INFO, FileInformation.FILE_STANDARD_INFO, FileInformation.FILE_INTERNAL_INFO })

    private final int fid;
    private final FileInformation info;

    /**
     * Constructs a Trans2SetFileInformation request with file information object.
     *
     * @param config the SMB configuration
     * @param fid the file identifier
     * @param info the file information to set
     */
    public Trans2SetFileInformation(final Configuration config, final int fid, final FileInformation info) {

 *
 * @author mbechler
 */
public class FileInternalInfo implements FileInformation {

    private long indexNumber;

    /**
     * Default constructor for decoding file internal information.
     */
    public FileInternalInfo() {
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.fscc.FileInformation#getFileInformationLevel()
     */
    @Override

        final int start = bufferIndex;
        final FileInformation inf = createFileInformation();
        if (inf != null) {
            bufferIndex += inf.decode(buffer, bufferIndex, getDataCount());
            this.info = inf;
        }
        return bufferIndex - start;
    }

    private FileInformation createFileInformation() {
        FileInformation inf;
        switch (this.informationLevel) {