content: /* ###
   * IP: GHIDRA
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package firmware.uefi_te;
  
  import ghidra.app.util.bin.BinaryReader;
  import ghidra.app.util.bin.StructConverter;
  import ghidra.program.model.data.DataType;
  import ghidra.program.model.data.Structure;
  import ghidra.program.model.data.StructureDataType;
  
  import java.io.IOException;
  
  /**
   * Parser for PE32/TE image data directories, which have the following fields:
   *
   *   PE32/TE Image Data Directory
   *   +------+------+-----------------+
   *   | Type | Size | Description     |
   *   +------+------+-----------------+
   *   | u32  |    4 | Virtual Address |
   *   | u32  |    4 | Size            |
   *   +------+------+-----------------+
   *
   * Ghidra has existing classes to parse this structure, but they are dependent on PE32 NT headers.
   */
  public class EFIImageDataDirectory implements StructConverter {
  	private int virtualAddress;
  	private int size;
  
  	/**
  	 * Constructs an EFIImageDataDirectory from a specified BinaryReader.
  	 *
  	 * @param reader the specified BinaryReader
  	 */
  	public EFIImageDataDirectory(BinaryReader reader) throws IOException {
  		virtualAddress = reader.readNextInt();
  		size = reader.readNextInt();
  	}
  
  	/**
  	 * Returns the virtual address of the current data directory.
  	 *
  	 * @return the virtual address of the current data directory
  	 */
  	public int getVirtualAddress() {
  		return virtualAddress;
  	}
  
  	/**
  	 * Returns the size of the current data directory.
  	 *
  	 * @return the size of the current data directory
  	 */
  	public int getSize() {
  		return size;
  	}
  
  	@Override
  	public DataType toDataType() {
  		Structure structure = new StructureDataType("efi_image_data_dir_t", 0);
  		structure.add(DWORD, 4, "virtual_address", null);
  		structure.add(DWORD, 4, "size", null);
  		return structure;
  	}
  }
  