assertEquals((byte) (informationLevel & 0xFF), dst[0]);
        assertEquals((byte) ((informationLevel >> 8) & 0xFF), dst[1]);
        // Check reserved bytes
        for (int i = 2; i < 6; i++) {
            assertEquals((byte) 0x00, dst[i], "Reserved byte at index " + i + " should be 0.");
        }
        // Check filename
        byte[] filenameBytes = filename.getBytes();

    if (version != VERSION_5) throw ProtocolException("unexpected version: $version")

    val command = fromSource.readByte() and 0xff

    val reserved = fromSource.readByte() and 0xff
    if (reserved != 0) throw ProtocolException("unexpected reserved: $reserved")

    val addressType = fromSource.readByte() and 0xff
    val toAddress =
      when (addressType) {
        ADDRESS_TYPE_IPV4 -> {

        SMBUtil.writeInt2(4, buffer, 0);
        // Write reserved field (any value is acceptable)
        buffer[2] = (byte) byte2;
        buffer[3] = (byte) byte3;

        // When
        int bytesRead = response.readBytesWireFormat(buffer, 0);

        // Then - should still read 4 bytes regardless of reserved field value
        assertEquals(4, bytesRead);
    }

    @Test

        final int start = bufferIndex;

        bufferIndex += 2; // reserved
        dataCompactionMode = readInt2(buffer, bufferIndex);
        bufferIndex += 4; // 2 reserved
        dataLength = readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        dataOffset = readInt2(buffer, bufferIndex);
        bufferIndex += 12; // 10 reserved

        return bufferIndex - start;
    }

    @Override

        @BeforeEach
        public void setUp() {
            // Build a sample buffer
            int bufferIndex = 0;
            bufferIndex += 2; // reserved
            writeInt2(dataCompactionMode, buffer, bufferIndex);
            bufferIndex += 2;
            bufferIndex += 2; // reserved
            writeInt2(dataLength, buffer, bufferIndex);
            bufferIndex += 2;
            writeInt2(dataOffset, buffer, bufferIndex);
        }

        assertEquals(16, SMBUtil.readInt2(buffer, 4));

        // NameLength field (2 bytes) - should be 4 for "RqLs"
        assertEquals(4, SMBUtil.readInt2(buffer, 6));

        // Reserved field (2 bytes) - should be 0
        assertEquals(0, SMBUtil.readInt2(buffer, 8));

        // DataOffset field (2 bytes) - should be 24 (16 header + 4 name + 4 padding)

  internal const val B0_FLAG_FIN = 128

  /** Byte 0 reserved flag 1. Must be 0 unless negotiated otherwise. */
  internal const val B0_FLAG_RSV1 = 64

  /** Byte 0 reserved flag 2. Must be 0 unless negotiated otherwise. */
  internal const val B0_FLAG_RSV2 = 32

  /** Byte 0 reserved flag 3. Must be 0 unless negotiated otherwise. */
  internal const val B0_FLAG_RSV3 = 16

        idx += 2;
        SMBUtil.writeInt2(reserved, data, idx);
        idx += 2;
        SMBUtil.writeInt2(creditsRequested, data, idx);
        idx += 2;
        SMBUtil.writeInt4(preferredSendSize, data, idx);
        idx += 4;
        SMBUtil.writeInt4(maxReceiveSize, data, idx);
        idx += 4;
        SMBUtil.writeInt4(maxFragmentedSize, data, idx);
        idx += 4;

        // Reserved fields (8 bytes)

        buffer[12] = 0x00;
        buffer[13] = 0x00;

        // Signature (8 bytes)
        for (int i = 14; i < 22; i++) {
            buffer[i] = 0x00;
        }

        // Reserved (2 bytes)
        buffer[22] = 0x00;
        buffer[23] = 0x00;

        // TID (2 bytes)
        buffer[24] = 0x01;
        buffer[25] = 0x00;

        // PID (2 bytes)
        buffer[26] = 0x02;

        ByteBuffer bb = ByteBuffer.allocate(8).order(ByteOrder.LITTLE_ENDIAN);
        bb.putShort((short) fid);
        bb.put((byte) 0x00); // Reserved
        bb.put((byte) 0x00); // Reserved
        bb.putInt(securityInformation);
        return bb.array();
    }

    /**
     * Provide a range of values that are valid for the constructor.
     */