/// <summary>
/// 编辑Dos设备的Stoken;
/// </summary>
/// <param name="deviceStoken"></param>
/// <param name="xElem">案件文件相关Xml元素</param>
private static void EditStokenOnDos(
DeviceStoken deviceStoken,
IUnmanagedBasicDeviceManager entity)
{
if (deviceStoken == null)
{
throw new ArgumentNullException(nameof(deviceStoken));
}
var dosDeviceInfo = new DOSDeviceInfo();
try {
deviceStoken.TypeGuid = Constants.DeviceType_DOS;
deviceStoken.PartsType = Constants.PartsType_DOS;
//获取Dos链表;
var partPtr = Partition_Get_DosPTable(entity.BasicDevicePtr);
var partNode = partPtr;
var infoDiskIndex = 0;
while (partNode != IntPtr.Zero)
{
var dosPTable = partNode.GetStructure <StDosPTable>();
var dosPartInfo = new DOSPartInfo {
DosPTable = new DosPTable(dosPTable)
};
if (dosPTable.Info != IntPtr.Zero)
{
var stInfoDisk = dosPTable.Info.GetStructure <StInFoDisk>();
dosPartInfo.InfoDisk = new InfoDisk(stInfoDisk)
{
InternalDisplayName = $"{LanguageService.FindResourceString(Constants.DisplayName_InfoDisk)}{++infoDiskIndex}"
};
}
dosDeviceInfo.DosPartInfos.Add(dosPartInfo);
partNode = dosPTable.next;
}
EditDosPartEntries(dosDeviceInfo, deviceStoken);
//编辑拓展;
deviceStoken.SetInstance(dosDeviceInfo, Constants.DeviceStokenTag_DOSDeviceInfo);
}
catch (Exception ex) {
LoggerService.WriteCallerLine(ex.Message);
}
}
/// <summary>
/// 根据Dos分区表项编辑Dos分区项;
/// </summary>
/// <param name="dosDeviceInfo"></param>
private static void EditDosPartEntries(DOSDeviceInfo dosDeviceInfo, DeviceStoken deviceStoken)
{
if (dosDeviceInfo == null)
{
throw new ArgumentNullException(nameof(dosDeviceInfo));
}
if (deviceStoken == null)
{
throw new ArgumentNullException(nameof(deviceStoken));
}
//拓展分区偏移;
long extendPartLBA = 0;
dosDeviceInfo.DosPartInfos.ForEach(dosPartInfo => {
//确定起始绝对位移;
long startLBA = 0;
long?partStartLBA = null;
long?partSize = dosPartInfo.InfoDisk.StructInstance.AllSector * SECSIZE;
switch (dosPartInfo.DosPTable.StDosPTable.DosPartType)
{
case DosPartType.Error:
return;
case DosPartType.Main:
startLBA = (long)dosPartInfo.DosPTable.StDosPTable.nOffset;
partStartLBA = dosPartInfo.InfoDisk.StructInstance.HeadSector * SECSIZE;
break;
case DosPartType.Extend:
extendPartLBA += dosPartInfo.InfoDisk.StructInstance.HeadSector * SECSIZE;
startLBA = (long)dosPartInfo.DosPTable.StDosPTable.nOffset;
partSize = null;
partStartLBA = null;
break;
case DosPartType.Logic:
startLBA = (long)dosPartInfo.DosPTable.StDosPTable.nOffset;
partStartLBA = extendPartLBA + dosPartInfo.InfoDisk.StructInstance.HeadSector * SECSIZE;
break;
default:
break;
}
var entry = PartitionEntryFactory.CreatePartitionEntry(Constants.PartEntryKey_DOS);
var entryStoken = entry.GetStoken(Constants.PartEntryKey_DOS);
entryStoken.TypeGUID = FromDosPartTypeToCons(dosPartInfo.DosPTable.StDosPTable.DosPartType);
entryStoken.StartLBA = startLBA;
entryStoken.Size = Marshal.SizeOf(typeof(StInFoDisk));
entryStoken.PartStartLBA = partStartLBA;
entryStoken.PartSize = partSize;
entryStoken.SetInstance(dosPartInfo, Constants.PartitionEntryStokenTag_DOS);
deviceStoken.PartitionEntries.Add(entry);
});
}
