public static BootSectorInfo ParseBootSector_FATx(byte[] bootSector, FATxType fatType)
{
BootSectorInfo info = new BootSectorInfo();
byte[] BytesPerSector = new byte[] { bootSector[11], bootSector[12] };
byte[] SectorsPerCluster = new byte[] { bootSector[13] };
byte[] ReservedSectors = new byte[] { bootSector[14], bootSector[15] };
byte[] FileSystemName = null;
byte[] VolumeSerialNumber = null;
if (fatType == FATxType.Fat32)
{
//FAT32
FileSystemName = new byte[] { bootSector[82], bootSector[83], bootSector[84], bootSector[85], bootSector[86], bootSector[87], bootSector[88], bootSector[89] };
VolumeSerialNumber = new byte[] { bootSector[67], bootSector[68], bootSector[69], bootSector[70] };
}
else if (fatType == FATxType.Fat12_16)
{
//FAT12/16
FileSystemName = new byte[] { bootSector[54], bootSector[55], bootSector[56], bootSector[57], bootSector[58], bootSector[59], bootSector[60], bootSector[61] };
VolumeSerialNumber = new byte[] { bootSector[39], bootSector[40], bootSector[41], bootSector[42] };
}
info.FileSystemName_Parsed = Encoding.ASCII.GetString(FileSystemName);
info.BytesPerSector = BitConverter.ToUInt16(BytesPerSector, 0);
info.SectorsPerCluster = SectorsPerCluster[0];
info.ReservedSectors = BitConverter.ToUInt16(ReservedSectors, 0);
info.VolumeSerialNumber = BitConverter.ToUInt32(VolumeSerialNumber, 0);
return(info);
}
public static BootSectorInfo ParseBootSector_ExFat(byte[] bootSector)
{
BootSectorInfo info = new BootSectorInfo();
byte[] BytesPerSector = new byte[] { bootSector[108] };
byte[] SectorsPerCluster = new byte[] { bootSector[109] };
byte[] FileSystemName = new byte[] { bootSector[3], bootSector[4], bootSector[5], bootSector[6], bootSector[7], bootSector[8], bootSector[9], bootSector[10] };
byte[] VolumeSerialNumber = new byte[] { bootSector[100], bootSector[101], bootSector[102], bootSector[103] };
info.FileSystemName_Parsed = Encoding.ASCII.GetString(FileSystemName);
info.BytesPerSector = (uint)Math.Pow(2.0, BytesPerSector[0]);
info.SectorsPerCluster = (byte)Math.Pow(2.0, SectorsPerCluster[0]);
info.VolumeSerialNumber = BitConverter.ToUInt32(VolumeSerialNumber, 0);
return(info);
}
public static BootSectorInfo ParseBootSector_NTFS(byte[] bootSector)
{
BootSectorInfo info = new BootSectorInfo();
byte[] BytesPerSector = new byte[] { bootSector[11], bootSector[12] };
byte[] SectorsPerCluster = new byte[] { bootSector[13] };
byte[] ReservedSectors = new byte[] { bootSector[14], bootSector[15] };
byte[] FileSystemName = new byte[] { bootSector[3], bootSector[4], bootSector[5], bootSector[6], bootSector[7], bootSector[8], bootSector[9], bootSector[10] };
byte[] VolumeSerialNumber = new byte[] { bootSector[72], bootSector[73], bootSector[74], bootSector[75], bootSector[76], bootSector[77], bootSector[78], bootSector[79] };
if (!BitConverter.IsLittleEndian)
{
Array.Reverse(BytesPerSector);
Array.Reverse(ReservedSectors);
}
info.FileSystemName_Parsed = Encoding.ASCII.GetString(FileSystemName);
info.BytesPerSector = BitConverter.ToUInt16(BytesPerSector, 0);
info.SectorsPerCluster = SectorsPerCluster[0];
info.ReservedSectors = BitConverter.ToUInt16(ReservedSectors, 0);
info.VolumeSerialNumber = BitConverter.ToUInt64(VolumeSerialNumber, 0);
return(info);
}
public UsbDeviceInfo(DeviceInfo deviceInfo, BootSectorInfo bootSectorInfo, DiskSpaceLayout?diskSpaceLayout)
{
DiskSpaceLayout = diskSpaceLayout;
DeviceInfo = deviceInfo;
BootSectorInfo = bootSectorInfo;
}
