int FLAGS_OPLOCK_REQUESTED_OR_GRANTED = 0x20;
    /**
     * Notify client of any action which modified the file flag.
     */
    int FLAGS_NOTIFY_OF_MODIFY_ACTION = 0x40;
    /**
     * Message is a response from server flag.
     */
    int FLAGS_RESPONSE = 0x80;

    /**
     * No flags2 set in SMB header.
     */
    int FLAGS2_NONE = 0x0000;
    /**
     * Long file names are supported flag.
     */

-->

#### What this PR does / why we need it:

#### Which issue(s) this PR is related to:
<!--
Please link relevant issues to help with tracking.

To automatically close the linked issue(s) when this PR is merged,
add the word "Fixes" before the issue number or link.
Do not use "Fixes" if the PR is of kind `failing-test` or `flake`.

Reference KEPs when applicable in addition to specific issues.

Examples:

                final CrawlingInfoParam crawlingInfoParam = new CrawlingInfoParam();
                crawlingInfoParam.setCrawlingInfoId(crawlingInfo.getId());
                crawlingInfoParam.setKey(entry.getKey());
                crawlingInfoParam.setValue(entry.getValue());
                crawlingInfoParamList.add(crawlingInfoParam);
            }
            getCrawlingInfoService().storeInfo(crawlingInfoParamList);

            KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
            keyStore.load(null, null);
            keyStore.setCertificateEntry("server", certificate);

            TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
            trustManagerFactory.init(keyStore);

            throw new SmbException("This client is not compatible with the server.");
        }

        final boolean serverRequireSig = resp.getResponse().isSigningRequired();
        final boolean serverEnableSig = resp.getResponse().isSigningEnabled();
        if (log.isDebugEnabled()) {
            log.debug("Signature negotiation enforced " + this.signingEnforced + " (server " + serverRequireSig + ") enabled "

            return false;
        }

        final int flags = SMBUtil.readInt4(data, offset + 16);
        if ((flags & ServerMessageBlock2.SMB2_FLAGS_SIGNED) == 0) {
            log.error("The server did not sign a message we expected to be signed");
            return true;
        }

        final byte[] sig = new byte[SIGNATURE_LENGTH];

import jcifs.internal.smb2.Smb2Constants;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Session Setup request message. This command is used to establish a security session
 * and authenticate a user to the server.
 *
 * @author mbechler
 *
 */
public class Smb2SessionSetupRequest extends ServerMessageBlock2Request<Smb2SessionSetupResponse> {

    private final byte[] token;
    private final int capabilities;

        // Dialect revision (SMB 3.0.2)
        SMBUtil.writeInt2(0x0302, buffer, 4);

        // Negotiate context count (0 for non-3.1.1)
        SMBUtil.writeInt2(0, buffer, 6);

        // Server GUID (16 bytes of zeros)
        // Already initialized to zeros

        // Capabilities
        SMBUtil.writeInt4(Smb2Constants.SMB2_GLOBAL_CAP_DFS, buffer, 24);

        // Max sizes (reasonable values)

 * Peer certificate chain:
 *     sha256/afwiKY3RxoMmLkuRW1l7QsPZTJPwDS2pdDROQjXw8ig=: CN=publicobject.com, OU=PositiveSSL
 *     sha256/klO23nT2ehFDXCfx3eHTDRESMz3asj1muO+4aIdjiuY=: CN=COMODO RSA Secure Server CA
 *     sha256/grX4Ta9HpZx6tSHkmCrvpApTQGo67CYDnvprLg5yRME=: CN=COMODO RSA Certification Authority
 *     sha256/lCppFqbkrlJ3EcVFAkeip0+44VaoJUymbnOaEUk7tEU=: CN=AddTrust External CA Root

             * so let's populate them here
             */

            andxCommand = buffer[bufferIndex];
            andxOffset = readInt2(buffer, bufferIndex + 2);

            if (andxOffset == 0) { /* Snap server workaround */
                andxCommand = (byte) 0xFF;
            }

            /*
             * no point in calling readParameterWordsWireFormat if there are no more