public static EFI_LOAD_OPTION ConvertOption(byte[] data, int lenght)
{
EFI_LOAD_OPTION LoadOption = new EFI_LOAD_OPTION();
using (BinaryReader reader = new BinaryReader(new MemoryStream(data, 0, lenght))) {
while (reader.BaseStream.Position != reader.BaseStream.Length)
{
LoadOption.Attributes = reader.ReadUInt32();
LoadOption.FilePathListLength = reader.ReadUInt16();
StringBuilder builder = new StringBuilder();
while (true)
{
ushort chr = reader.ReadUInt16();
if (chr == 0)
{
break;
}
builder.Append(Convert.ToChar(chr));
}
LoadOption.Description = builder.ToString();
LoadOption.FilePathList = EFI_DEVICE_PATH_PROTOCOL.ReadList(reader);
// Manually seek to optional data position because EFI_DEVICE_PATH_PROTOCOL sequence not always property aligned
reader.BaseStream.Seek(sizeof(UInt32) + sizeof(UInt16) + (LoadOption.Description.Length + 1) * sizeof(UInt16) + LoadOption.FilePathListLength, SeekOrigin.Begin);
LoadOption.OptionalData = reader.ReadBytes((int)(lenght - reader.BaseStream.Position));
}
}
return(LoadOption);
}
public static List<EFI_DEVICE_PATH_PROTOCOL> ReadList(BinaryReader reader)
{
List<EFI_DEVICE_PATH_PROTOCOL> protocols = new List<EFI_DEVICE_PATH_PROTOCOL>();
while (true) {
EFI_DEVICE_PATH_PROTOCOL protocol = new EFI_DEVICE_PATH_PROTOCOL();
protocol.Type = (DeviceType) reader.ReadByte();
protocol.SubType = reader.ReadByte();
protocol.Length = reader.ReadUInt16();
protocol.Data = reader.ReadBytes(protocol.Length - 4);
protocols.Add(protocol);
if (protocol.Type == DeviceType.END && protocol.SubType == END_ENTIRE_DEVICE_PATH_SUB_TYPE) {
break;
}
}
return protocols;
}
public static List <EFI_DEVICE_PATH_PROTOCOL> ReadList(BinaryReader reader)
{
List <EFI_DEVICE_PATH_PROTOCOL> protocols = new List <EFI_DEVICE_PATH_PROTOCOL>();
while (true)
{
EFI_DEVICE_PATH_PROTOCOL protocol = new EFI_DEVICE_PATH_PROTOCOL();
protocol.Type = (DeviceType)reader.ReadByte();
protocol.SubType = reader.ReadByte();
protocol.Length = reader.ReadUInt16();
protocol.Data = reader.ReadBytes(protocol.Length - 4);
protocols.Add(protocol);
if (protocol.Type == DeviceType.END && protocol.SubType == END_ENTIRE_DEVICE_PATH_SUB_TYPE)
{
break;
}
}
return(protocols);
}
