*
 * 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
     */
    public static final int SMB2_HEADER_LENGTH = 64;

    /**

        boolean shouldEnforce = (securityMode & Smb2Constants.SMB2_NEGOTIATE_SIGNING_REQUIRED) != 0;
        assertEquals(shouldEnforce, request.isSigningEnforced());
    }

    private static Stream<Arguments> provideSecurityModes() {
        return Stream.of(Arguments.of(0), Arguments.of(Smb2Constants.SMB2_NEGOTIATE_SIGNING_ENABLED),
                Arguments.of(Smb2Constants.SMB2_NEGOTIATE_SIGNING_REQUIRED),

        return switch (infoType) {
        case Smb2Constants.SMB2_0_INFO_FILE -> createFileInformation(infoClass);
        case Smb2Constants.SMB2_0_INFO_FILESYSTEM -> createFilesystemInformation(infoClass);
        case Smb2Constants.SMB2_0_INFO_QUOTA -> createQuotaInformation(infoClass);
        case Smb2Constants.SMB2_0_INFO_SECURITY -> createSecurityInformation(infoClass);

        setInfoType(Smb2Constants.SMB2_0_INFO_FILE);
        this.fileInfoClass = fileInfoClass;
    }

    /**
     * Sets the filesystem information class for the query
     *
     * @param fileInfoClass
     *            the fileInfoClass to set
     */
    public final void setFilesystemInfoClass(final byte fileInfoClass) {
        setInfoType(Smb2Constants.SMB2_0_INFO_FILESYSTEM);

package jcifs.internal.smb2.io;

import jcifs.CIFSContext;
import jcifs.Configuration;
import jcifs.internal.smb2.RequestWithFileId;
import jcifs.internal.smb2.ServerMessageBlock2Request;
import jcifs.internal.smb2.Smb2Constants;
import jcifs.internal.smb2.rdma.RdmaChannelInfo;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Read request message.
 *
 * This command is used to read data from a file that has been

        request.encode(buffer, 0);

        // Then
        int bodyOffset = Smb2Constants.SMB2_HEADER_LENGTH;
        int securityBufferOffset = SMBUtil.readInt2(buffer, bodyOffset + 12);

        // The offset should point to the location after the fixed structure (relative to header start)
        int expectedOffset = Smb2Constants.SMB2_HEADER_LENGTH + 24;
        while ((expectedOffset % 8) != 0) {

        buildHeader(buf, headerStart, NtStatus.NT_STATUS_MORE_PROCESSING_REQUIRED, 0x0001, expectedSessionId);

        int bodyStart = headerStart + Smb2Constants.SMB2_HEADER_LENGTH;
        byte[] blob = new byte[] { 10, 20, 30, 40, 50 };
        int secBufOffset = Smb2Constants.SMB2_HEADER_LENGTH + 8; // directly after fixed part
        int sessionFlags = Smb2SessionSetupResponse.SMB2_SESSION_FLAGS_IS_GUEST;

            assertNotNull(digest);
        }

        @Test
        @DisplayName("Should create digest for SMB 2.1 with HmacSHA256")
        void testConstructorSmb210() throws GeneralSecurityException {
            Smb2SigningDigest digest = new Smb2SigningDigest(sessionKey, Smb2Constants.SMB2_DIALECT_0210, null);
            assertNotNull(digest);

        switch (dialect) {
        case Smb2Constants.SMB2_DIALECT_0202:
        case Smb2Constants.SMB2_DIALECT_0210:
            this.algorithmName = "HmacSHA256";
            this.provider = null;
            this.signingKey = sessionKey.clone();
            break;
        case Smb2Constants.SMB2_DIALECT_0300:
        case Smb2Constants.SMB2_DIALECT_0302:

    void testDeriveSigningKey_DifferentDialects() {
        // When
        byte[] signingKey300 = Smb3KeyDerivation.deriveSigningKey(Smb2Constants.SMB2_DIALECT_0300, sessionKey, preauthIntegrity);
        byte[] signingKey311 = Smb3KeyDerivation.deriveSigningKey(Smb2Constants.SMB2_DIALECT_0311, sessionKey, preauthIntegrity);

        // Then