import jcifs.internal.smb2.info.Smb2SetInfoRequest;
import jcifs.internal.smb2.io.Smb2WriteRequest;
import jcifs.internal.smb2.io.Smb2WriteResponse;

/**
 * This <code>OutputStream</code> can write bytes to a file on an SMB file server.
 */

public class SmbFileOutputStream extends OutputStream {

    private static final Logger log = LoggerFactory.getLogger(SmbFileOutputStream.class);

import jcifs.internal.smb1.AndXServerMessageBlock;
import jcifs.internal.smb1.ServerMessageBlock;
import jcifs.internal.smb1.com.SmbComBlankResponse;
import jcifs.internal.smb1.com.SmbComLockingAndX;
import jcifs.internal.smb1.com.SmbComNegotiate;
import jcifs.internal.smb1.com.SmbComNegotiateResponse;
import jcifs.internal.smb1.com.SmbComReadAndXResponse;
import jcifs.internal.smb1.trans.SmbComTransaction;

import jcifs.internal.smb1.trans2.Trans2FindFirst2Response;
import jcifs.internal.smb2.ServerMessageBlock2;
import jcifs.internal.smb2.ioctl.Smb2IoctlRequest;
import jcifs.internal.smb2.ioctl.Smb2IoctlResponse;
import jcifs.internal.smb2.ioctl.ValidateNegotiateInfoRequest;
import jcifs.internal.smb2.ioctl.ValidateNegotiateInfoResponse;
import jcifs.internal.smb2.nego.Smb2NegotiateRequest;
import jcifs.internal.smb2.nego.Smb2NegotiateResponse;

        // Check SMB1 signature
        if (protocolId == 0x424D53FF) { // 0xFF 'S' 'M' 'B'
            // SMB1
            if (structureSize < 32 || structureSize > 65535) {
                failedValidations.incrementAndGet();
                throw new SmbException("Invalid SMB1 header size: " + structureSize);
            }
        }
        // Check SMB2/3 signature

    }

    @Test
    @DisplayName("Should identify SMB1 vs SMB2+ versions")
    void testSMBVersionIdentification() {
        // SMB1 should not be SMB2
        assertFalse(DialectVersion.SMB1.isSMB2());

        // SMB2+ versions should be identified as SMB2
        assertTrue(DialectVersion.SMB202.isSMB2());
        assertTrue(DialectVersion.SMB210.isSMB2());

    /**
     * Property {@code jcifs.smb.client.aes256Enabled} (boolean, default true)
     *
     * @return whether AES-256 encryption ciphers are enabled for SMB3.x
     * @since 2.2
     */
    boolean isAES256Enabled();

    /**
     * Property {@code jcifs.smb.client.compressionEnabled} (boolean, default false)
     *
     * @return whether SMB3 compression is enabled
     */

    /**
     * @return whether this tree handle uses SMB2
     */
    @Override
    public boolean isSMB2() {
        try (SmbSessionImpl session = this.treeConnection.getSession(); SmbTransportImpl transport = session.getTransport()) {
            return transport.isSMB2();
        } catch (final SmbException e) {
            log.debug("Failed to connect for determining SMB2 support", e);
            return false;
        }

 */
package jcifs.internal.smb2;

/**
 * Constants for SMB2/SMB3 protocol.
 *
 * This class contains protocol-specific constants, command codes,
 * flags, and other values used in SMB2/SMB3 communication.
 *
 * @author mbechler
 */
public final class Smb2Constants {

    /**
     *
     */
    private Smb2Constants() {
    }

    /**
     * SMB2 header length in bytes
     */

    /** Whether SMB3 compression is enabled */
    protected boolean compressionEnabled = false;
    /** Preferred encryption ciphers in order of preference */
    protected String preferredCiphers = "AES_128_GCM,AES_128_CCM,AES_256_GCM,AES_256_CCM";
    /** Whether AES-256 encryption is enabled */
    protected boolean aes256Enabled = true;
    /** Whether to use SMB2/SMB3 leases for caching */
    protected boolean useLease = true;

import jcifs.internal.smb2.info.Smb2QueryDirectoryResponse;

/**
 * SMB2/SMB3 implementation of directory entry enumeration iterator.
 * Provides efficient directory listing capabilities for SMB2/SMB3 protocol versions.
 *
 * @author mbechler
 *
 */
public class DirFileEntryEnumIterator2 extends DirFileEntryEnumIteratorBase {

    private static final Logger log = LoggerFactory.getLogger(DirFileEntryEnumIterator2.class);