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-rw-r--r--Common/BootEncryption.cpp2457
1 files changed, 2457 insertions, 0 deletions
diff --git a/Common/BootEncryption.cpp b/Common/BootEncryption.cpp
new file mode 100644
index 0000000..51221ff
--- /dev/null
+++ b/Common/BootEncryption.cpp
@@ -0,0 +1,2457 @@
+/*
+ Copyright (c) 2008-2010 TrueCrypt Developers Association. All rights reserved.
+
+ Governed by the TrueCrypt License 3.0 the full text of which is contained in
+ the file License.txt included in TrueCrypt binary and source code distribution
+ packages.
+*/
+
+#include "Tcdefs.h"
+#include "Platform/Finally.h"
+#include "Platform/ForEach.h"
+#include <Setupapi.h>
+#include <devguid.h>
+#include <io.h>
+#include <shlobj.h>
+#include <atlbase.h>
+#include "BootEncryption.h"
+#include "Boot/Windows/BootCommon.h"
+#include "Common/Resource.h"
+#include "Crc.h"
+#include "Crypto.h"
+#include "Dlgcode.h"
+#include "Endian.h"
+#include "Language.h"
+#include "Random.h"
+#include "Registry.h"
+#include "Volumes.h"
+
+#ifdef VOLFORMAT
+#include "Format/FormatCom.h"
+#elif defined (TCMOUNT)
+#include "Mount/MainCom.h"
+#endif
+
+namespace TrueCrypt
+{
+#if !defined (SETUP)
+
+ class Elevator
+ {
+ public:
+
+ static void AddReference ()
+ {
+ ++ReferenceCount;
+ }
+
+
+ static void CallDriver (DWORD ioctl, void *input, DWORD inputSize, void *output, DWORD outputSize)
+ {
+ Elevate();
+
+ CComBSTR inputBstr;
+ if (input && inputBstr.AppendBytes ((const char *) input, inputSize) != S_OK)
+ throw ParameterIncorrect (SRC_POS);
+
+ CComBSTR outputBstr;
+ if (output && outputBstr.AppendBytes ((const char *) output, outputSize) != S_OK)
+ throw ParameterIncorrect (SRC_POS);
+
+ DWORD result = ElevatedComInstance->CallDriver (ioctl, inputBstr, &outputBstr);
+
+ if (output)
+ memcpy (output, *(void **) &outputBstr, outputSize);
+
+ if (result != ERROR_SUCCESS)
+ {
+ SetLastError (result);
+ throw SystemException();
+ }
+ }
+
+ static void CopyFile (const string &sourceFile, const string &destinationFile)
+ {
+ Elevate();
+
+ DWORD result = ElevatedComInstance->CopyFile (CComBSTR (sourceFile.c_str()), CComBSTR (destinationFile.c_str()));
+
+ if (result != ERROR_SUCCESS)
+ {
+ SetLastError (result);
+ throw SystemException();
+ }
+ }
+
+ static void DeleteFile (const string &file)
+ {
+ Elevate();
+
+ DWORD result = ElevatedComInstance->DeleteFile (CComBSTR (file.c_str()));
+
+ if (result != ERROR_SUCCESS)
+ {
+ SetLastError (result);
+ throw SystemException();
+ }
+ }
+
+ static void ReadWriteFile (BOOL write, BOOL device, const string &filePath, byte *buffer, uint64 offset, uint32 size, DWORD *sizeDone)
+ {
+ Elevate();
+
+ CComBSTR bufferBstr;
+ if (bufferBstr.AppendBytes ((const char *) buffer, size) != S_OK)
+ throw ParameterIncorrect (SRC_POS);
+ DWORD result = ElevatedComInstance->ReadWriteFile (write, device, CComBSTR (filePath.c_str()), &bufferBstr, offset, size, sizeDone);
+
+ if (result != ERROR_SUCCESS)
+ {
+ SetLastError (result);
+ throw SystemException();
+ }
+
+ if (!write)
+ memcpy (buffer, (BYTE *) bufferBstr.m_str, size);
+ }
+
+ static BOOL IsPagingFileActive (BOOL checkNonWindowsPartitionsOnly)
+ {
+ Elevate();
+
+ return ElevatedComInstance->IsPagingFileActive (checkNonWindowsPartitionsOnly);
+ }
+
+ static void WriteLocalMachineRegistryDwordValue (char *keyPath, char *valueName, DWORD value)
+ {
+ Elevate();
+
+ DWORD result = ElevatedComInstance->WriteLocalMachineRegistryDwordValue (CComBSTR (keyPath), CComBSTR (valueName), value);
+
+ if (result != ERROR_SUCCESS)
+ {
+ SetLastError (result);
+ throw SystemException();
+ }
+ }
+
+ static void RegisterFilterDriver (bool registerDriver, BootEncryption::FilterType filterType)
+ {
+ Elevate();
+
+ DWORD result = ElevatedComInstance->RegisterFilterDriver (registerDriver ? TRUE : FALSE, filterType);
+ if (result != ERROR_SUCCESS)
+ {
+ SetLastError (result);
+ throw SystemException();
+ }
+ }
+
+ static void RegisterSystemFavoritesService (BOOL registerService)
+ {
+ Elevate();
+
+ DWORD result = ElevatedComInstance->RegisterSystemFavoritesService (registerService);
+ if (result != ERROR_SUCCESS)
+ {
+ SetLastError (result);
+ throw SystemException();
+ }
+ }
+
+ static void Release ()
+ {
+ if (--ReferenceCount == 0 && ElevatedComInstance)
+ {
+ ElevatedComInstance->Release();
+ ElevatedComInstance = nullptr;
+ CoUninitialize ();
+ }
+ }
+
+ static void SetDriverServiceStartType (DWORD startType)
+ {
+ Elevate();
+
+ DWORD result = ElevatedComInstance->SetDriverServiceStartType (startType);
+ if (result != ERROR_SUCCESS)
+ {
+ SetLastError (result);
+ throw SystemException();
+ }
+ }
+
+ protected:
+ static void Elevate ()
+ {
+ if (IsAdmin())
+ {
+ SetLastError (ERROR_ACCESS_DENIED);
+ throw SystemException();
+ }
+
+ if (!ElevatedComInstance || ElevatedComInstanceThreadId != GetCurrentThreadId())
+ {
+ CoInitialize (NULL);
+ ElevatedComInstance = GetElevatedInstance (GetActiveWindow() ? GetActiveWindow() : MainDlg);
+ ElevatedComInstanceThreadId = GetCurrentThreadId();
+ }
+ }
+
+#if defined (TCMOUNT)
+ static ITrueCryptMainCom *ElevatedComInstance;
+#elif defined (VOLFORMAT)
+ static ITrueCryptFormatCom *ElevatedComInstance;
+#endif
+ static DWORD ElevatedComInstanceThreadId;
+ static int ReferenceCount;
+ };
+
+#if defined (TCMOUNT)
+ ITrueCryptMainCom *Elevator::ElevatedComInstance;
+#elif defined (VOLFORMAT)
+ ITrueCryptFormatCom *Elevator::ElevatedComInstance;
+#endif
+ DWORD Elevator::ElevatedComInstanceThreadId;
+ int Elevator::ReferenceCount = 0;
+
+#else // SETUP
+
+ class Elevator
+ {
+ public:
+ static void AddReference () { }
+ static void CallDriver (DWORD ioctl, void *input, DWORD inputSize, void *output, DWORD outputSize) { throw ParameterIncorrect (SRC_POS); }
+ static void ReadWriteFile (BOOL write, BOOL device, const string &filePath, byte *buffer, uint64 offset, uint32 size, DWORD *sizeDone) { throw ParameterIncorrect (SRC_POS); }
+ static void RegisterFilterDriver (bool registerDriver, BootEncryption::FilterType filterType) { throw ParameterIncorrect (SRC_POS); }
+ static void Release () { }
+ static void SetDriverServiceStartType (DWORD startType) { throw ParameterIncorrect (SRC_POS); }
+ };
+
+#endif // SETUP
+
+
+ File::File (string path, bool readOnly, bool create) : Elevated (false), FileOpen (false)
+ {
+ Handle = CreateFile (path.c_str(),
+ readOnly ? GENERIC_READ : GENERIC_READ | GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, create ? CREATE_ALWAYS : OPEN_EXISTING,
+ FILE_FLAG_RANDOM_ACCESS | FILE_FLAG_WRITE_THROUGH, NULL);
+
+ try
+ {
+ throw_sys_if (Handle == INVALID_HANDLE_VALUE);
+ }
+ catch (SystemException &)
+ {
+ if (GetLastError() == ERROR_ACCESS_DENIED && IsUacSupported())
+ Elevated = true;
+ else
+ throw;
+ }
+
+ FileOpen = true;
+ FilePointerPosition = 0;
+ IsDevice = false;
+ Path = path;
+ }
+
+ void File::Close ()
+ {
+ if (FileOpen)
+ {
+ if (!Elevated)
+ CloseHandle (Handle);
+
+ FileOpen = false;
+ }
+ }
+
+ DWORD File::Read (byte *buffer, DWORD size)
+ {
+ DWORD bytesRead;
+
+ if (Elevated)
+ {
+ DWORD bytesRead;
+
+ Elevator::ReadWriteFile (false, IsDevice, Path, buffer, FilePointerPosition, size, &bytesRead);
+ FilePointerPosition += bytesRead;
+ return bytesRead;
+ }
+
+ throw_sys_if (!ReadFile (Handle, buffer, size, &bytesRead, NULL));
+ return bytesRead;
+ }
+
+ void File::SeekAt (int64 position)
+ {
+ FilePointerPosition = position;
+
+ if (!Elevated)
+ {
+ LARGE_INTEGER pos;
+ pos.QuadPart = position;
+ throw_sys_if (!SetFilePointerEx (Handle, pos, NULL, FILE_BEGIN));
+ }
+ }
+
+ void File::Write (byte *buffer, DWORD size)
+ {
+ DWORD bytesWritten;
+
+ try
+ {
+ if (Elevated)
+ {
+ Elevator::ReadWriteFile (true, IsDevice, Path, buffer, FilePointerPosition, size, &bytesWritten);
+ FilePointerPosition += bytesWritten;
+ throw_sys_if (bytesWritten != size);
+ }
+ else
+ {
+ throw_sys_if (!WriteFile (Handle, buffer, size, &bytesWritten, NULL) || bytesWritten != size);
+ }
+ }
+ catch (SystemException &e)
+ {
+ if (!IsDevice || e.ErrorCode != ERROR_WRITE_PROTECT)
+ throw;
+
+ BootEncryption bootEnc (NULL);
+
+ while (size >= TC_SECTOR_SIZE_BIOS)
+ {
+ bootEnc.WriteBootDriveSector (FilePointerPosition, buffer);
+
+ FilePointerPosition += TC_SECTOR_SIZE_BIOS;
+ buffer += TC_SECTOR_SIZE_BIOS;
+ size -= TC_SECTOR_SIZE_BIOS;
+ }
+ }
+ }
+
+ void Show (HWND parent, const string &str)
+ {
+ MessageBox (parent, str.c_str(), NULL, 0);
+ }
+
+
+ Device::Device (string path, bool readOnly)
+ {
+ FileOpen = false;
+ Elevated = false;
+
+ Handle = CreateFile ((string ("\\\\.\\") + path).c_str(),
+ readOnly ? GENERIC_READ : GENERIC_READ | GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
+ FILE_FLAG_RANDOM_ACCESS | FILE_FLAG_WRITE_THROUGH, NULL);
+
+ try
+ {
+ throw_sys_if (Handle == INVALID_HANDLE_VALUE);
+ }
+ catch (SystemException &)
+ {
+ if (GetLastError() == ERROR_ACCESS_DENIED && IsUacSupported())
+ Elevated = true;
+ else
+ throw;
+ }
+
+ FileOpen = true;
+ FilePointerPosition = 0;
+ IsDevice = true;
+ Path = path;
+ }
+
+
+ BootEncryption::BootEncryption (HWND parent)
+ : DriveConfigValid (false),
+ ParentWindow (parent),
+ RealSystemDriveSizeValid (false),
+ RescueIsoImage (nullptr),
+ RescueVolumeHeaderValid (false),
+ SelectedEncryptionAlgorithmId (0),
+ VolumeHeaderValid (false)
+ {
+ Elevator::AddReference();
+ }
+
+
+ BootEncryption::~BootEncryption ()
+ {
+ if (RescueIsoImage)
+ delete[] RescueIsoImage;
+
+ Elevator::Release();
+ }
+
+
+ void BootEncryption::CallDriver (DWORD ioctl, void *input, DWORD inputSize, void *output, DWORD outputSize)
+ {
+ try
+ {
+ DWORD bytesReturned;
+ throw_sys_if (!DeviceIoControl (hDriver, ioctl, input, inputSize, output, outputSize, &bytesReturned, NULL));
+ }
+ catch (SystemException &)
+ {
+ if (GetLastError() == ERROR_ACCESS_DENIED && IsUacSupported())
+ Elevator::CallDriver (ioctl, input, inputSize, output, outputSize);
+ else
+ throw;
+ }
+ }
+
+
+ // Finds the first partition physically located behind the active one and returns its properties
+ Partition BootEncryption::GetPartitionForHiddenOS ()
+ {
+ Partition candidatePartition;
+
+ memset (&candidatePartition, 0, sizeof(candidatePartition));
+
+ // The user may have modified/added/deleted partitions since the time the partition table was last scanned
+ InvalidateCachedSysDriveProperties();
+
+ SystemDriveConfiguration config = GetSystemDriveConfiguration ();
+ bool activePartitionFound = false;
+ bool candidateForHiddenOSFound = false;
+
+ if (config.SystemPartition.IsGPT)
+ throw ParameterIncorrect (SRC_POS); // It is assumed that CheckRequirements() had been called
+
+ // Find the first active partition on the system drive
+ foreach (const Partition &partition, config.Partitions)
+ {
+ if (partition.Info.BootIndicator)
+ {
+ if (partition.Info.PartitionNumber != config.SystemPartition.Number)
+ {
+ // If there is an extra boot partition, the system partition must be located right behind it
+ if (IsOSAtLeast (WIN_7) && config.ExtraBootPartitionPresent)
+ {
+ int64 minOffsetFound = config.DrivePartition.Info.PartitionLength.QuadPart;
+ Partition bootPartition = partition;
+ Partition partitionBehindBoot;
+
+ foreach (const Partition &partition, config.Partitions)
+ {
+ if (partition.Info.StartingOffset.QuadPart > bootPartition.Info.StartingOffset.QuadPart
+ && partition.Info.StartingOffset.QuadPart < minOffsetFound)
+ {
+ minOffsetFound = partition.Info.StartingOffset.QuadPart;
+ partitionBehindBoot = partition;
+ }
+ }
+
+ if (minOffsetFound != config.DrivePartition.Info.PartitionLength.QuadPart
+ && partitionBehindBoot.Number == config.SystemPartition.Number)
+ {
+ activePartitionFound = true;
+ break;
+ }
+ }
+
+ throw ErrorException (wstring (GetString ("SYSTEM_PARTITION_NOT_ACTIVE"))
+ + GetRemarksOnHiddenOS());
+ }
+
+ activePartitionFound = true;
+ break;
+ }
+ }
+
+ /* WARNING: Note that the partition number at the end of a device path (\Device\HarddiskY\PartitionX) must
+ NOT be used to find the first partition physically located behind the active one. The reason is that the
+ user may have deleted and created partitions during this session and e.g. the second partition could have
+ a higer number than the third one. */
+
+
+ // Find the first partition physically located behind the active partition
+ if (activePartitionFound)
+ {
+ int64 minOffsetFound = config.DrivePartition.Info.PartitionLength.QuadPart;
+
+ foreach (const Partition &partition, config.Partitions)
+ {
+ if (partition.Info.StartingOffset.QuadPart > config.SystemPartition.Info.StartingOffset.QuadPart
+ && partition.Info.StartingOffset.QuadPart < minOffsetFound)
+ {
+ minOffsetFound = partition.Info.StartingOffset.QuadPart;
+
+ candidatePartition = partition;
+
+ candidateForHiddenOSFound = true;
+ }
+ }
+
+ if (!candidateForHiddenOSFound)
+ {
+ throw ErrorException (wstring (GetString ("NO_PARTITION_FOLLOWS_BOOT_PARTITION"))
+ + GetRemarksOnHiddenOS());
+ }
+
+ if (config.SystemPartition.Info.PartitionLength.QuadPart > TC_MAX_FAT_SECTOR_COUNT * TC_SECTOR_SIZE_BIOS)
+ {
+ if ((double) candidatePartition.Info.PartitionLength.QuadPart / config.SystemPartition.Info.PartitionLength.QuadPart < MIN_HIDDENOS_DECOY_PARTITION_SIZE_RATIO_NTFS)
+ {
+ throw ErrorException (wstring (GetString ("PARTITION_TOO_SMALL_FOR_HIDDEN_OS_NTFS"))
+ + GetRemarksOnHiddenOS());
+ }
+ }
+ else if ((double) candidatePartition.Info.PartitionLength.QuadPart / config.SystemPartition.Info.PartitionLength.QuadPart < MIN_HIDDENOS_DECOY_PARTITION_SIZE_RATIO_FAT)
+ {
+ throw ErrorException (wstring (GetString ("PARTITION_TOO_SMALL_FOR_HIDDEN_OS"))
+ + GetRemarksOnHiddenOS());
+ }
+ }
+ else
+ {
+ // No active partition on the system drive
+ throw ErrorException ("SYSTEM_PARTITION_NOT_ACTIVE");
+ }
+
+ HiddenOSCandidatePartition = candidatePartition;
+ return candidatePartition;
+ }
+
+
+ DWORD BootEncryption::GetDriverServiceStartType ()
+ {
+ DWORD startType;
+ throw_sys_if (!ReadLocalMachineRegistryDword ("SYSTEM\\CurrentControlSet\\Services\\truecrypt", "Start", &startType));
+ return startType;
+ }
+
+
+ wstring BootEncryption::GetRemarksOnHiddenOS ()
+ {
+ return (wstring (L"\n\n")
+ + GetString ("TWO_SYSTEMS_IN_ONE_PARTITION_REMARK")
+ + L"\n\n"
+ + GetString ("FOR_MORE_INFO_ON_PARTITIONS"));
+ }
+
+
+ void BootEncryption::SetDriverServiceStartType (DWORD startType)
+ {
+ if (!IsAdmin() && IsUacSupported())
+ {
+ Elevator::SetDriverServiceStartType (startType);
+ return;
+ }
+
+ BOOL startOnBoot = (startType == SERVICE_BOOT_START);
+
+ SC_HANDLE serviceManager = OpenSCManager (NULL, NULL, SC_MANAGER_ALL_ACCESS);
+ throw_sys_if (!serviceManager);
+
+ finally_do_arg (SC_HANDLE, serviceManager, { CloseServiceHandle (finally_arg); });
+
+ SC_HANDLE service = OpenService (serviceManager, "truecrypt", SERVICE_CHANGE_CONFIG);
+ throw_sys_if (!service);
+
+ finally_do_arg (SC_HANDLE, service, { CloseServiceHandle (finally_arg); });
+
+ // Windows versions preceding Vista can be installed on FAT filesystem which does not
+ // support long filenames during boot. Convert the driver path to short form if required.
+ string driverPath;
+ if (startOnBoot && !IsOSAtLeast (WIN_VISTA))
+ {
+ char pathBuf[MAX_PATH];
+ char filesystem[128];
+
+ string path (GetWindowsDirectory());
+ path += "\\drivers\\truecrypt.sys";
+
+ if (GetVolumePathName (path.c_str(), pathBuf, sizeof (pathBuf))
+ && GetVolumeInformation (pathBuf, NULL, 0, NULL, NULL, NULL, filesystem, sizeof(filesystem))
+ && memcmp (filesystem, "FAT", 3) == 0)
+ {
+ throw_sys_if (GetShortPathName (path.c_str(), pathBuf, sizeof (pathBuf)) == 0);
+
+ // Convert absolute path to relative to the Windows directory
+ driverPath = pathBuf;
+ driverPath = driverPath.substr (driverPath.rfind ("\\", driverPath.rfind ("\\", driverPath.rfind ("\\") - 1) - 1) + 1);
+ }
+ }
+
+ throw_sys_if (!ChangeServiceConfig (service, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE,
+ startOnBoot ? SERVICE_ERROR_SEVERE : SERVICE_ERROR_NORMAL,
+ driverPath.empty() ? NULL : driverPath.c_str(),
+ startOnBoot ? "Filter" : NULL,
+ NULL, NULL, NULL, NULL, NULL));
+
+ // ChangeServiceConfig() rejects SERVICE_BOOT_START with ERROR_INVALID_PARAMETER
+ throw_sys_if (!WriteLocalMachineRegistryDword ("SYSTEM\\CurrentControlSet\\Services\\truecrypt", "Start", startType));
+ }
+
+
+ void BootEncryption::ProbeRealSystemDriveSize ()
+ {
+ if (RealSystemDriveSizeValid)
+ return;
+
+ GetSystemDriveConfiguration();
+
+ ProbeRealDriveSizeRequest request;
+ _snwprintf (request.DeviceName, array_capacity (request.DeviceName), L"%hs", DriveConfig.DrivePartition.DevicePath.c_str());
+
+ CallDriver (TC_IOCTL_PROBE_REAL_DRIVE_SIZE, &request, sizeof (request), &request, sizeof (request));
+ DriveConfig.DrivePartition.Info.PartitionLength = request.RealDriveSize;
+
+ RealSystemDriveSizeValid = true;
+
+ if (request.TimeOut)
+ throw TimeOut (SRC_POS);
+ }
+
+
+ void BootEncryption::InvalidateCachedSysDriveProperties ()
+ {
+ DriveConfigValid = false;
+ RealSystemDriveSizeValid = false;
+ }
+
+
+ PartitionList BootEncryption::GetDrivePartitions (int driveNumber)
+ {
+ PartitionList partList;
+
+ for (int partNumber = 0; partNumber < 64; ++partNumber)
+ {
+ stringstream partPath;
+ partPath << "\\Device\\Harddisk" << driveNumber << "\\Partition" << partNumber;
+
+ DISK_PARTITION_INFO_STRUCT diskPartInfo;
+ _snwprintf (diskPartInfo.deviceName, array_capacity (diskPartInfo.deviceName), L"%hs", partPath.str().c_str());
+
+ try
+ {
+ CallDriver (TC_IOCTL_GET_DRIVE_PARTITION_INFO, &diskPartInfo, sizeof (diskPartInfo), &diskPartInfo, sizeof (diskPartInfo));
+ }
+ catch (...)
+ {
+ continue;
+ }
+
+ Partition part;
+ part.DevicePath = partPath.str();
+ part.Number = partNumber;
+ part.Info = diskPartInfo.partInfo;
+ part.IsGPT = diskPartInfo.IsGPT;
+
+ // Mount point
+ wstringstream ws;
+ ws << partPath.str().c_str();
+ int driveNumber = GetDiskDeviceDriveLetter ((wchar_t *) ws.str().c_str());
+
+ if (driveNumber >= 0)
+ {
+ part.MountPoint += (char) (driveNumber + 'A');
+ part.MountPoint += ":";
+ }
+
+ // Volume ID
+ wchar_t volumePath[TC_MAX_PATH];
+ if (ResolveSymbolicLink ((wchar_t *) ws.str().c_str(), volumePath))
+ {
+ wchar_t volumeName[TC_MAX_PATH];
+ HANDLE fh = FindFirstVolumeW (volumeName, array_capacity (volumeName));
+ if (fh != INVALID_HANDLE_VALUE)
+ {
+ do
+ {
+ wstring volumeNameStr = volumeName;
+ wchar_t devicePath[TC_MAX_PATH];
+
+ if (QueryDosDeviceW (volumeNameStr.substr (4, volumeNameStr.size() - 1 - 4).c_str(), devicePath, array_capacity (devicePath)) != 0
+ && wcscmp (volumePath, devicePath) == 0)
+ {
+ part.VolumeNameId = volumeName;
+ break;
+ }
+
+ } while (FindNextVolumeW (fh, volumeName, array_capacity (volumeName)));
+
+ FindVolumeClose (fh);
+ }
+ }
+
+ partList.push_back (part);
+ }
+
+ return partList;
+ }
+
+
+ DISK_GEOMETRY BootEncryption::GetDriveGeometry (int driveNumber)
+ {
+ stringstream devName;
+ devName << "\\Device\\Harddisk" << driveNumber << "\\Partition0";
+
+ DISK_GEOMETRY geometry;
+ throw_sys_if (!::GetDriveGeometry ((char *) devName.str().c_str(), &geometry));
+ return geometry;
+ }
+
+
+ string BootEncryption::GetWindowsDirectory ()
+ {
+ char buf[MAX_PATH];
+ throw_sys_if (GetSystemDirectory (buf, sizeof (buf)) == 0);
+
+ return string (buf);
+ }
+
+
+ string BootEncryption::GetTempPath ()
+ {
+ char tempPath[MAX_PATH];
+ DWORD tempLen = ::GetTempPath (sizeof (tempPath), tempPath);
+ if (tempLen == 0 || tempLen > sizeof (tempPath))
+ throw ParameterIncorrect (SRC_POS);
+
+ return string (tempPath);
+ }
+
+
+ uint16 BootEncryption::GetInstalledBootLoaderVersion ()
+ {
+ uint16 version;
+ CallDriver (TC_IOCTL_GET_BOOT_LOADER_VERSION, NULL, 0, &version, sizeof (version));
+ return version;
+ }
+
+
+ // Note that this does not require admin rights (it just requires the driver to be running)
+ bool BootEncryption::IsBootLoaderOnDrive (char *devicePath)
+ {
+ try
+ {
+ OPEN_TEST_STRUCT openTestStruct;
+ memset (&openTestStruct, 0, sizeof (openTestStruct));
+ DWORD dwResult;
+
+ strcpy ((char *) &openTestStruct.wszFileName[0], devicePath);
+ ToUNICODE ((char *) &openTestStruct.wszFileName[0]);
+
+ openTestStruct.bDetectTCBootLoader = TRUE;
+
+ return (DeviceIoControl (hDriver, TC_IOCTL_OPEN_TEST,
+ &openTestStruct, sizeof (OPEN_TEST_STRUCT),
+ &openTestStruct, sizeof (OPEN_TEST_STRUCT),
+ &dwResult, NULL) && openTestStruct.TCBootLoaderDetected);
+ }
+ catch (...)
+ {
+ return false;
+ }
+ }
+
+
+ BootEncryptionStatus BootEncryption::GetStatus ()
+ {
+ /* IMPORTANT: Do NOT add any potentially time-consuming operations to this function. */
+
+ BootEncryptionStatus status;
+ CallDriver (TC_IOCTL_GET_BOOT_ENCRYPTION_STATUS, NULL, 0, &status, sizeof (status));
+ return status;
+ }
+
+
+ void BootEncryption::GetVolumeProperties (VOLUME_PROPERTIES_STRUCT *properties)
+ {
+ if (properties == NULL)
+ throw ParameterIncorrect (SRC_POS);
+
+ CallDriver (TC_IOCTL_GET_BOOT_DRIVE_VOLUME_PROPERTIES, NULL, 0, properties, sizeof (*properties));
+ }
+
+
+ bool BootEncryption::IsHiddenSystemRunning ()
+ {
+ int hiddenSystemStatus;
+
+ CallDriver (TC_IOCTL_IS_HIDDEN_SYSTEM_RUNNING, nullptr, 0, &hiddenSystemStatus, sizeof (hiddenSystemStatus));
+ return hiddenSystemStatus != 0;
+ }
+
+
+ bool BootEncryption::SystemDriveContainsPartitionType (byte type)
+ {
+ Device device (GetSystemDriveConfiguration().DevicePath, true);
+
+ byte mbrBuf[TC_SECTOR_SIZE_BIOS];
+ device.SeekAt (0);
+ device.Read (mbrBuf, sizeof (mbrBuf));
+
+ MBR *mbr = reinterpret_cast <MBR *> (mbrBuf);
+ if (mbr->Signature != 0xaa55)
+ throw ParameterIncorrect (SRC_POS);
+
+ for (size_t i = 0; i < array_capacity (mbr->Partitions); ++i)
+ {
+ if (mbr->Partitions[i].Type == type)
+ return true;
+ }
+
+ return false;
+ }
+
+
+ bool BootEncryption::SystemDriveContainsExtendedPartition ()
+ {
+ return SystemDriveContainsPartitionType (PARTITION_EXTENDED) || SystemDriveContainsPartitionType (PARTITION_XINT13_EXTENDED);
+ }
+
+
+ bool BootEncryption::SystemDriveContainsNonStandardPartitions ()
+ {
+ for (int partitionType = 1; partitionType <= 0xff; ++partitionType)
+ {
+ switch (partitionType)
+ {
+ case PARTITION_FAT_12:
+ case PARTITION_FAT_16:
+ case PARTITION_EXTENDED:
+ case PARTITION_HUGE:
+ case PARTITION_IFS:
+ case PARTITION_FAT32:
+ case PARTITION_FAT32_XINT13:
+ case PARTITION_XINT13:
+ case PARTITION_XINT13_EXTENDED:
+ continue;
+ }
+
+ if (SystemDriveContainsPartitionType ((byte) partitionType))
+ return true;
+ }
+
+ return false;
+ }
+
+
+ bool BootEncryption::SystemDriveIsDynamic ()
+ {
+ GetSystemDriveConfigurationRequest request;
+ _snwprintf (request.DevicePath, array_capacity (request.DevicePath), L"%hs", GetSystemDriveConfiguration().DeviceKernelPath.c_str());
+
+ CallDriver (TC_IOCTL_GET_SYSTEM_DRIVE_CONFIG, &request, sizeof (request), &request, sizeof (request));
+ return request.DriveIsDynamic ? true : false;
+ }
+
+
+ SystemDriveConfiguration BootEncryption::GetSystemDriveConfiguration ()
+ {
+ if (DriveConfigValid)
+ return DriveConfig;
+
+ SystemDriveConfiguration config;
+
+ string winDir = GetWindowsDirectory();
+
+ // Scan all drives
+ for (int driveNumber = 0; driveNumber < 32; ++driveNumber)
+ {
+ bool windowsFound = false;
+ bool activePartitionFound = false;
+ config.ExtraBootPartitionPresent = false;
+ config.SystemLoaderPresent = false;
+
+ PartitionList partitions = GetDrivePartitions (driveNumber);
+ foreach (const Partition &part, partitions)
+ {
+ if (!part.MountPoint.empty()
+ && (_access ((part.MountPoint + "\\bootmgr").c_str(), 0) == 0 || _access ((part.MountPoint + "\\ntldr").c_str(), 0) == 0))
+ {
+ config.SystemLoaderPresent = true;
+ }
+ else if (!part.VolumeNameId.empty()
+ && (_waccess ((part.VolumeNameId + L"\\bootmgr").c_str(), 0) == 0 || _waccess ((part.VolumeNameId + L"\\ntldr").c_str(), 0) == 0))
+ {
+ config.SystemLoaderPresent = true;
+ }
+
+ if (!windowsFound && !part.MountPoint.empty() && ToUpperCase (winDir).find (ToUpperCase (part.MountPoint)) == 0)
+ {
+ config.SystemPartition = part;
+ windowsFound = true;
+ }
+
+ if (!activePartitionFound && part.Info.BootIndicator)
+ {
+ activePartitionFound = true;
+
+ if (part.Info.PartitionLength.QuadPart > 0 && part.Info.PartitionLength.QuadPart <= TC_MAX_EXTRA_BOOT_PARTITION_SIZE)
+ config.ExtraBootPartitionPresent = true;
+ }
+ }
+
+ if (windowsFound)
+ {
+ config.DriveNumber = driveNumber;
+
+ stringstream ss;
+ ss << "PhysicalDrive" << driveNumber;
+ config.DevicePath = ss.str();
+
+ stringstream kernelPath;
+ kernelPath << "\\Device\\Harddisk" << driveNumber << "\\Partition0";
+ config.DeviceKernelPath = kernelPath.str();
+
+ config.DrivePartition = partitions.front();
+ partitions.pop_front();
+ config.Partitions = partitions;
+
+ config.InitialUnallocatedSpace = 0x7fffFFFFffffFFFFull;
+ config.TotalUnallocatedSpace = config.DrivePartition.Info.PartitionLength.QuadPart;
+
+ foreach (const Partition &part, config.Partitions)
+ {
+ if (part.Info.StartingOffset.QuadPart < config.InitialUnallocatedSpace)
+ config.InitialUnallocatedSpace = part.Info.StartingOffset.QuadPart;
+
+ config.TotalUnallocatedSpace -= part.Info.PartitionLength.QuadPart;
+ }
+
+ DriveConfig = config;
+ DriveConfigValid = true;
+ return DriveConfig;
+ }
+ }
+
+ throw ParameterIncorrect (SRC_POS);
+ }
+
+
+ bool BootEncryption::SystemPartitionCoversWholeDrive ()
+ {
+ SystemDriveConfiguration config = GetSystemDriveConfiguration();
+
+ if (IsOSAtLeast (WIN_7)
+ && config.Partitions.size() == 2
+ && config.ExtraBootPartitionPresent
+ && config.DrivePartition.Info.PartitionLength.QuadPart - config.SystemPartition.Info.PartitionLength.QuadPart < 164 * BYTES_PER_MB)
+ {
+ return true;
+ }
+
+ return config.Partitions.size() == 1
+ && config.DrivePartition.Info.PartitionLength.QuadPart - config.SystemPartition.Info.PartitionLength.QuadPart < 64 * BYTES_PER_MB;
+ }
+
+
+ uint32 BootEncryption::GetChecksum (byte *data, size_t size)
+ {
+ uint32 sum = 0;
+
+ while (size-- > 0)
+ {
+ sum += *data++;
+ sum = _rotl (sum, 1);
+ }
+
+ return sum;
+ }
+
+
+ void BootEncryption::CreateBootLoaderInMemory (byte *buffer, size_t bufferSize, bool rescueDisk, bool hiddenOSCreation)
+ {
+ if (bufferSize < TC_BOOT_LOADER_AREA_SIZE - TC_BOOT_ENCRYPTION_VOLUME_HEADER_SIZE)
+ throw ParameterIncorrect (SRC_POS);
+
+ ZeroMemory (buffer, bufferSize);
+
+ int ea = 0;
+ if (GetStatus().DriveMounted)
+ {
+ try
+ {
+ GetBootEncryptionAlgorithmNameRequest request;
+ CallDriver (TC_IOCTL_GET_BOOT_ENCRYPTION_ALGORITHM_NAME, NULL, 0, &request, sizeof (request));
+
+ if (_stricmp (request.BootEncryptionAlgorithmName, "AES") == 0)
+ ea = AES;
+ else if (_stricmp (request.BootEncryptionAlgorithmName, "Serpent") == 0)
+ ea = SERPENT;
+ else if (_stricmp (request.BootEncryptionAlgorithmName, "Twofish") == 0)
+ ea = TWOFISH;
+ }
+ catch (...)
+ {
+ try
+ {
+ VOLUME_PROPERTIES_STRUCT properties;
+ GetVolumeProperties (&properties);
+ ea = properties.ea;
+ }
+ catch (...) { }
+ }
+ }
+ else
+ {
+ if (SelectedEncryptionAlgorithmId == 0)
+ throw ParameterIncorrect (SRC_POS);
+
+ ea = SelectedEncryptionAlgorithmId;
+ }
+
+ int bootSectorId = rescueDisk ? IDR_RESCUE_BOOT_SECTOR : IDR_BOOT_SECTOR;
+ int bootLoaderId = rescueDisk ? IDR_RESCUE_LOADER : IDR_BOOT_LOADER;
+
+ switch (ea)
+ {
+ case AES:
+ bootSectorId = rescueDisk ? IDR_RESCUE_BOOT_SECTOR_AES : IDR_BOOT_SECTOR_AES;
+ bootLoaderId = rescueDisk ? IDR_RESCUE_LOADER_AES : IDR_BOOT_LOADER_AES;
+ break;
+
+ case SERPENT:
+ bootSectorId = rescueDisk ? IDR_RESCUE_BOOT_SECTOR_SERPENT : IDR_BOOT_SECTOR_SERPENT;
+ bootLoaderId = rescueDisk ? IDR_RESCUE_LOADER_SERPENT : IDR_BOOT_LOADER_SERPENT;
+ break;
+
+ case TWOFISH:
+ bootSectorId = rescueDisk ? IDR_RESCUE_BOOT_SECTOR_TWOFISH : IDR_BOOT_SECTOR_TWOFISH;
+ bootLoaderId = rescueDisk ? IDR_RESCUE_LOADER_TWOFISH : IDR_BOOT_LOADER_TWOFISH;
+ break;
+ }
+
+ // Boot sector
+ DWORD size;
+ byte *bootSecResourceImg = MapResource ("BIN", bootSectorId, &size);
+ if (!bootSecResourceImg || size != TC_SECTOR_SIZE_BIOS)
+ throw ParameterIncorrect (SRC_POS);
+
+ memcpy (buffer, bootSecResourceImg, size);
+
+ *(uint16 *) (buffer + TC_BOOT_SECTOR_VERSION_OFFSET) = BE16 (VERSION_NUM);
+
+ if (IsOSAtLeast (WIN_VISTA))
+ buffer[TC_BOOT_SECTOR_CONFIG_OFFSET] |= TC_BOOT_CFG_FLAG_WINDOWS_VISTA_OR_LATER;
+
+ if (rescueDisk && (ReadDriverConfigurationFlags() & TC_DRIVER_CONFIG_DISABLE_HARDWARE_ENCRYPTION))
+ buffer[TC_BOOT_SECTOR_CONFIG_OFFSET] |= TC_BOOT_CFG_FLAG_RESCUE_DISABLE_HW_ENCRYPTION;
+
+ // Checksum of the backup header of the outer volume for the hidden system
+ if (hiddenOSCreation)
+ {
+ Device device (GetSystemDriveConfiguration().DevicePath);
+ byte headerSector[TC_SECTOR_SIZE_BIOS];
+
+ device.SeekAt (HiddenOSCandidatePartition.Info.StartingOffset.QuadPart + HiddenOSCandidatePartition.Info.PartitionLength.QuadPart - TC_VOLUME_HEADER_GROUP_SIZE + TC_VOLUME_HEADER_EFFECTIVE_SIZE);
+ device.Read (headerSector, sizeof (headerSector));
+
+ *(uint32 *) (buffer + TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_OFFSET) = GetCrc32 (headerSector, sizeof (headerSector));
+ }
+
+ // Decompressor
+ byte *decompressor = MapResource ("BIN", IDR_BOOT_LOADER_DECOMPRESSOR, &size);
+ if (!decompressor || size > TC_BOOT_LOADER_DECOMPRESSOR_SECTOR_COUNT * TC_SECTOR_SIZE_BIOS)
+ throw ParameterIncorrect (SRC_POS);
+
+ memcpy (buffer + TC_SECTOR_SIZE_BIOS, decompressor, size);
+
+ // Compressed boot loader
+ byte *bootLoader = MapResource ("BIN", bootLoaderId, &size);
+ if (!bootLoader || size > TC_MAX_BOOT_LOADER_SECTOR_COUNT * TC_SECTOR_SIZE_BIOS)
+ throw ParameterIncorrect (SRC_POS);
+
+ memcpy (buffer + TC_SECTOR_SIZE_BIOS + TC_BOOT_LOADER_DECOMPRESSOR_SECTOR_COUNT * TC_SECTOR_SIZE_BIOS, bootLoader, size);
+
+ // Boot loader and decompressor checksum
+ *(uint16 *) (buffer + TC_BOOT_SECTOR_LOADER_LENGTH_OFFSET) = static_cast <uint16> (size);
+ *(uint32 *) (buffer + TC_BOOT_SECTOR_LOADER_CHECKSUM_OFFSET) = GetChecksum (buffer + TC_SECTOR_SIZE_BIOS,
+ TC_BOOT_LOADER_DECOMPRESSOR_SECTOR_COUNT * TC_SECTOR_SIZE_BIOS + size);
+
+ // Backup of decompressor and boot loader
+ if (size + TC_BOOT_LOADER_DECOMPRESSOR_SECTOR_COUNT * TC_SECTOR_SIZE_BIOS <= TC_BOOT_LOADER_BACKUP_SECTOR_COUNT * TC_SECTOR_SIZE_BIOS)
+ {
+ memcpy (buffer + TC_SECTOR_SIZE_BIOS + TC_BOOT_LOADER_BACKUP_SECTOR_COUNT * TC_SECTOR_SIZE_BIOS,
+ buffer + TC_SECTOR_SIZE_BIOS, TC_BOOT_LOADER_BACKUP_SECTOR_COUNT * TC_SECTOR_SIZE_BIOS);
+
+ buffer[TC_BOOT_SECTOR_CONFIG_OFFSET] |= TC_BOOT_CFG_FLAG_BACKUP_LOADER_AVAILABLE;
+ }
+ else if (!rescueDisk && bootLoaderId != IDR_BOOT_LOADER)
+ {
+ throw ParameterIncorrect (SRC_POS);
+ }
+ }
+
+
+ void BootEncryption::ReadBootSectorConfig (byte *config, size_t bufLength, byte *userConfig, string *customUserMessage, uint16 *bootLoaderVersion)
+ {
+ if (config && bufLength < TC_BOOT_CFG_FLAG_AREA_SIZE)
+ throw ParameterIncorrect (SRC_POS);
+
+ GetSystemDriveConfigurationRequest request;
+ _snwprintf (request.DevicePath, array_capacity (request.DevicePath), L"%hs", GetSystemDriveConfiguration().DeviceKernelPath.c_str());
+
+ try
+ {
+ CallDriver (TC_IOCTL_GET_SYSTEM_DRIVE_CONFIG, &request, sizeof (request), &request, sizeof (request));
+ if (config)
+ *config = request.Configuration;
+
+ if (userConfig)
+ *userConfig = request.UserConfiguration;
+
+ if (customUserMessage)
+ {
+ request.CustomUserMessage[TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH] = 0;
+ *customUserMessage = request.CustomUserMessage;
+ }
+
+ if (bootLoaderVersion)
+ *bootLoaderVersion = request.BootLoaderVersion;
+ }
+ catch (...)
+ {
+ if (config)
+ *config = 0;
+
+ if (userConfig)
+ *userConfig = 0;
+
+ if (customUserMessage)
+ customUserMessage->clear();
+
+ if (bootLoaderVersion)
+ *bootLoaderVersion = 0;
+ }
+ }
+
+
+ void BootEncryption::WriteBootSectorConfig (const byte newConfig[])
+ {
+ Device device (GetSystemDriveConfiguration().DevicePath);
+ byte mbr[TC_SECTOR_SIZE_BIOS];
+
+ device.SeekAt (0);
+ device.Read (mbr, sizeof (mbr));
+
+ memcpy (mbr + TC_BOOT_SECTOR_CONFIG_OFFSET, newConfig, TC_BOOT_CFG_FLAG_AREA_SIZE);
+
+ device.SeekAt (0);
+ device.Write (mbr, sizeof (mbr));
+
+ byte mbrVerificationBuf[TC_SECTOR_SIZE_BIOS];
+ device.SeekAt (0);
+ device.Read (mbrVerificationBuf, sizeof (mbr));
+
+ if (memcmp (mbr, mbrVerificationBuf, sizeof (mbr)) != 0)
+ throw ErrorException ("ERROR_MBR_PROTECTED");
+ }
+
+
+ void BootEncryption::WriteBootSectorUserConfig (byte userConfig, const string &customUserMessage)
+ {
+ Device device (GetSystemDriveConfiguration().DevicePath);
+ byte mbr[TC_SECTOR_SIZE_BIOS];
+
+ device.SeekAt (0);
+ device.Read (mbr, sizeof (mbr));
+
+ if (!BufferContainsString (mbr, sizeof (mbr), TC_APP_NAME)
+ || BE16 (*(uint16 *) (mbr + TC_BOOT_SECTOR_VERSION_OFFSET)) != VERSION_NUM)
+ {
+ return;
+ }
+
+ mbr[TC_BOOT_SECTOR_USER_CONFIG_OFFSET] = userConfig;
+
+ memset (mbr + TC_BOOT_SECTOR_USER_MESSAGE_OFFSET, 0, TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH);
+
+ if (!customUserMessage.empty())
+ {
+ if (customUserMessage.size() > TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH)
+ throw ParameterIncorrect (SRC_POS);
+
+ memcpy (mbr + TC_BOOT_SECTOR_USER_MESSAGE_OFFSET, customUserMessage.c_str(), customUserMessage.size());
+ }
+
+ device.SeekAt (0);
+ device.Write (mbr, sizeof (mbr));
+
+ byte mbrVerificationBuf[TC_SECTOR_SIZE_BIOS];
+ device.SeekAt (0);
+ device.Read (mbrVerificationBuf, sizeof (mbr));
+
+ if (memcmp (mbr, mbrVerificationBuf, sizeof (mbr)) != 0)
+ throw ErrorException ("ERROR_MBR_PROTECTED");
+ }
+
+
+ unsigned int BootEncryption::GetHiddenOSCreationPhase ()
+ {
+ byte configFlags [TC_BOOT_CFG_FLAG_AREA_SIZE];
+
+ ReadBootSectorConfig (configFlags, sizeof(configFlags));
+
+ return (configFlags[0] & TC_BOOT_CFG_MASK_HIDDEN_OS_CREATION_PHASE);
+ }
+
+
+ void BootEncryption::SetHiddenOSCreationPhase (unsigned int newPhase)
+ {
+#if TC_BOOT_CFG_FLAG_AREA_SIZE != 1
+# error TC_BOOT_CFG_FLAG_AREA_SIZE != 1; revise GetHiddenOSCreationPhase() and SetHiddenOSCreationPhase()
+#endif
+ byte configFlags [TC_BOOT_CFG_FLAG_AREA_SIZE];
+
+ ReadBootSectorConfig (configFlags, sizeof(configFlags));
+
+ configFlags[0] &= (byte) ~TC_BOOT_CFG_MASK_HIDDEN_OS_CREATION_PHASE;
+
+ configFlags[0] |= newPhase;
+
+ WriteBootSectorConfig (configFlags);
+ }
+
+
+#ifndef SETUP
+
+ void BootEncryption::StartDecoyOSWipe (WipeAlgorithmId wipeAlgorithm)
+ {
+ if (!IsHiddenOSRunning())
+ throw ParameterIncorrect (SRC_POS);
+
+ WipeDecoySystemRequest request;
+ ZeroMemory (&request, sizeof (request));
+
+ request.WipeAlgorithm = wipeAlgorithm;
+
+ if (Randinit() != ERR_SUCCESS)
+ throw ParameterIncorrect (SRC_POS);
+
+ UserEnrichRandomPool (ParentWindow);
+
+ if (!RandgetBytes (request.WipeKey, sizeof (request.WipeKey), TRUE))
+ throw ParameterIncorrect (SRC_POS);
+
+ CallDriver (TC_IOCTL_START_DECOY_SYSTEM_WIPE, &request, sizeof (request), NULL, 0);
+
+ burn (&request, sizeof (request));
+ }
+
+
+ void BootEncryption::AbortDecoyOSWipe ()
+ {
+ CallDriver (TC_IOCTL_ABORT_DECOY_SYSTEM_WIPE);
+ }
+
+
+ DecoySystemWipeStatus BootEncryption::GetDecoyOSWipeStatus ()
+ {
+ DecoySystemWipeStatus status;
+ CallDriver (TC_IOCTL_GET_DECOY_SYSTEM_WIPE_STATUS, NULL, 0, &status, sizeof (status));
+ return status;
+ }
+
+
+ void BootEncryption::CheckDecoyOSWipeResult ()
+ {
+ CallDriver (TC_IOCTL_GET_DECOY_SYSTEM_WIPE_RESULT);
+ }
+
+
+ void BootEncryption::WipeHiddenOSCreationConfig ()
+ {
+ if (IsHiddenOSRunning() || Randinit() != ERR_SUCCESS)
+ throw ParameterIncorrect (SRC_POS);
+
+ Device device (GetSystemDriveConfiguration().DevicePath);
+ byte mbr[TC_SECTOR_SIZE_BIOS];
+
+ device.SeekAt (0);
+ device.Read (mbr, sizeof (mbr));
+
+ finally_do_arg (BootEncryption *, this,
+ {
+ try
+ {
+ finally_arg->SetHiddenOSCreationPhase (TC_HIDDEN_OS_CREATION_PHASE_NONE);
+ } catch (...) { }
+ });
+
+#if PRAND_DISK_WIPE_PASSES > RNG_POOL_SIZE
+# error PRAND_DISK_WIPE_PASSES > RNG_POOL_SIZE
+#endif
+
+ byte randData[PRAND_DISK_WIPE_PASSES];
+ if (!RandgetBytes (randData, sizeof (randData), FALSE))
+ throw ParameterIncorrect (SRC_POS);
+
+ for (int wipePass = 0; wipePass < PRAND_DISK_WIPE_PASSES; wipePass++)
+ {
+ for (int i = 0; i < TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_SIZE; ++i)
+ {
+ mbr[TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_OFFSET + i] = randData[wipePass];
+ }
+
+ mbr[TC_BOOT_SECTOR_CONFIG_OFFSET] &= (byte) ~TC_BOOT_CFG_MASK_HIDDEN_OS_CREATION_PHASE;
+ mbr[TC_BOOT_SECTOR_CONFIG_OFFSET] |= randData[wipePass] & TC_BOOT_CFG_MASK_HIDDEN_OS_CREATION_PHASE;
+
+ if (wipePass == PRAND_DISK_WIPE_PASSES - 1)
+ memset (mbr + TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_OFFSET, 0, TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_SIZE);
+
+ device.SeekAt (0);
+ device.Write (mbr, sizeof (mbr));
+ }
+
+ for (int wipePass = 0; wipePass < PRAND_DISK_WIPE_PASSES/4 + 1; wipePass++)
+ {
+ SetHiddenOSCreationPhase (TC_HIDDEN_OS_CREATION_PHASE_NONE);
+ SetHiddenOSCreationPhase (TC_HIDDEN_OS_CREATION_PHASE_CLONING);
+ SetHiddenOSCreationPhase (TC_HIDDEN_OS_CREATION_PHASE_WIPING);
+ SetHiddenOSCreationPhase (TC_HIDDEN_OS_CREATION_PHASE_WIPED);
+ }
+ SetHiddenOSCreationPhase (TC_HIDDEN_OS_CREATION_PHASE_NONE);
+ }
+
+#endif // !SETUP
+
+
+ void BootEncryption::InstallBootLoader (bool preserveUserConfig, bool hiddenOSCreation)
+ {
+ byte bootLoaderBuf[TC_BOOT_LOADER_AREA_SIZE - TC_BOOT_ENCRYPTION_VOLUME_HEADER_SIZE];
+ CreateBootLoaderInMemory (bootLoaderBuf, sizeof (bootLoaderBuf), false, hiddenOSCreation);
+
+ // Write MBR
+ Device device (GetSystemDriveConfiguration().DevicePath);
+ byte mbr[TC_SECTOR_SIZE_BIOS];
+
+ device.SeekAt (0);
+ device.Read (mbr, sizeof (mbr));
+
+ if (preserveUserConfig && BufferContainsString (mbr, sizeof (mbr), TC_APP_NAME))
+ {
+ uint16 version = BE16 (*(uint16 *) (mbr + TC_BOOT_SECTOR_VERSION_OFFSET));
+ if (version != 0)
+ {
+ bootLoaderBuf[TC_BOOT_SECTOR_USER_CONFIG_OFFSET] = mbr[TC_BOOT_SECTOR_USER_CONFIG_OFFSET];
+ memcpy (bootLoaderBuf + TC_BOOT_SECTOR_USER_MESSAGE_OFFSET, mbr + TC_BOOT_SECTOR_USER_MESSAGE_OFFSET, TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH);
+ }
+ }
+
+ memcpy (mbr, bootLoaderBuf, TC_MAX_MBR_BOOT_CODE_SIZE);
+
+ device.SeekAt (0);
+ device.Write (mbr, sizeof (mbr));
+
+ byte mbrVerificationBuf[TC_SECTOR_SIZE_BIOS];
+ device.SeekAt (0);
+ device.Read (mbrVerificationBuf, sizeof (mbr));
+
+ if (memcmp (mbr, mbrVerificationBuf, sizeof (mbr)) != 0)
+ throw ErrorException ("ERROR_MBR_PROTECTED");
+
+ // Write boot loader
+ device.SeekAt (TC_SECTOR_SIZE_BIOS);
+ device.Write (bootLoaderBuf + TC_SECTOR_SIZE_BIOS, sizeof (bootLoaderBuf) - TC_SECTOR_SIZE_BIOS);
+ }
+
+
+ string BootEncryption::GetSystemLoaderBackupPath ()
+ {
+ char pathBuf[MAX_PATH];
+
+ throw_sys_if (!SUCCEEDED (SHGetFolderPath (NULL, CSIDL_COMMON_APPDATA | CSIDL_FLAG_CREATE, NULL, 0, pathBuf)));
+
+ string path = string (pathBuf) + "\\" TC_APP_NAME;
+ CreateDirectory (path.c_str(), NULL);
+
+ return path + '\\' + TC_SYS_BOOT_LOADER_BACKUP_NAME;
+ }
+
+
+ void BootEncryption::RenameDeprecatedSystemLoaderBackup ()
+ {
+ char pathBuf[MAX_PATH];
+
+ if (SUCCEEDED (SHGetFolderPath (NULL, CSIDL_COMMON_APPDATA, NULL, 0, pathBuf)))
+ {
+ string path = string (pathBuf) + "\\" TC_APP_NAME + '\\' + TC_SYS_BOOT_LOADER_BACKUP_NAME_LEGACY;
+
+ if (FileExists (path.c_str()) && !FileExists (GetSystemLoaderBackupPath().c_str()))
+ throw_sys_if (rename (path.c_str(), GetSystemLoaderBackupPath().c_str()) != 0);
+ }
+ }
+
+
+#ifndef SETUP
+ void BootEncryption::CreateRescueIsoImage (bool initialSetup, const string &isoImagePath)
+ {
+ BootEncryptionStatus encStatus = GetStatus();
+ if (encStatus.SetupInProgress)
+ throw ParameterIncorrect (SRC_POS);
+
+ Buffer imageBuf (RescueIsoImageSize);
+
+ byte *image = imageBuf.Ptr();
+ memset (image, 0, RescueIsoImageSize);
+
+ // Primary volume descriptor
+ strcpy ((char *)image + 0x8000, "\001CD001\001");
+ strcpy ((char *)image + 0x7fff + 41, "TrueCrypt Rescue Disk ");
+ *(uint32 *) (image + 0x7fff + 81) = RescueIsoImageSize / 2048;
+ *(uint32 *) (image + 0x7fff + 85) = BE32 (RescueIsoImageSize / 2048);
+ image[0x7fff + 121] = 1;
+ image[0x7fff + 124] = 1;
+ image[0x7fff + 125] = 1;
+ image[0x7fff + 128] = 1;
+ image[0x7fff + 130] = 8;
+ image[0x7fff + 131] = 8;
+
+ image[0x7fff + 133] = 10;
+ image[0x7fff + 140] = 10;
+ image[0x7fff + 141] = 0x14;
+ image[0x7fff + 157] = 0x22;
+ image[0x7fff + 159] = 0x18;
+
+ // Boot record volume descriptor
+ strcpy ((char *)image + 0x8801, "CD001\001EL TORITO SPECIFICATION");
+ image[0x8800 + 0x47] = 0x19;
+
+ // Volume descriptor set terminator
+ strcpy ((char *)image + 0x9000, "\377CD001\001");
+
+ // Path table
+ image[0xA000 + 0] = 1;
+ image[0xA000 + 2] = 0x18;
+ image[0xA000 + 6] = 1;
+
+ // Root directory
+ image[0xc000 + 0] = 0x22;
+ image[0xc000 + 2] = 0x18;
+ image[0xc000 + 9] = 0x18;
+ image[0xc000 + 11] = 0x08;
+ image[0xc000 + 16] = 0x08;
+ image[0xc000 + 25] = 0x02;
+ image[0xc000 + 28] = 0x01;
+ image[0xc000 + 31] = 0x01;
+ image[0xc000 + 32] = 0x01;
+ image[0xc000 + 34] = 0x22;
+ image[0xc000 + 36] = 0x18;
+ image[0xc000 + 43] = 0x18;
+ image[0xc000 + 45] = 0x08;
+ image[0xc000 + 50] = 0x08;
+ image[0xc000 + 59] = 0x02;
+ image[0xc000 + 62] = 0x01;
+ *(uint32 *) (image + 0xc000 + 65) = 0x010101;
+
+ // Validation entry
+ image[0xc800] = 1;
+ int offset = 0xc800 + 0x1c;
+ image[offset++] = 0xaa;
+ image[offset++] = 0x55;
+ image[offset++] = 0x55;
+ image[offset] = 0xaa;
+
+ // Initial entry
+ offset = 0xc820;
+ image[offset++] = 0x88;
+ image[offset++] = 2;
+ image[0xc820 + 6] = 1;
+ image[0xc820 + 8] = TC_CD_BOOT_LOADER_SECTOR;
+
+ // TrueCrypt Boot Loader
+ CreateBootLoaderInMemory (image + TC_CD_BOOTSECTOR_OFFSET, TC_BOOT_LOADER_AREA_SIZE, true);
+
+ // Volume header
+ if (initialSetup)
+ {
+ if (!RescueVolumeHeaderValid)
+ throw ParameterIncorrect (SRC_POS);
+
+ memcpy (image + TC_CD_BOOTSECTOR_OFFSET + TC_BOOT_VOLUME_HEADER_SECTOR_OFFSET, RescueVolumeHeader, TC_BOOT_ENCRYPTION_VOLUME_HEADER_SIZE);
+ }
+ else
+ {
+ Device bootDevice (GetSystemDriveConfiguration().DevicePath, true);
+ bootDevice.SeekAt (TC_BOOT_VOLUME_HEADER_SECTOR_OFFSET);
+ bootDevice.Read (image + TC_CD_BOOTSECTOR_OFFSET + TC_BOOT_VOLUME_HEADER_SECTOR_OFFSET, TC_BOOT_ENCRYPTION_VOLUME_HEADER_SIZE);
+ }
+
+ // Original system loader
+ try
+ {
+ File sysBakFile (GetSystemLoaderBackupPath(), true);
+ sysBakFile.Read (image + TC_CD_BOOTSECTOR_OFFSET + TC_ORIG_BOOT_LOADER_BACKUP_SECTOR_OFFSET, TC_BOOT_LOADER_AREA_SIZE);
+
+ image[TC_CD_BOOTSECTOR_OFFSET + TC_BOOT_SECTOR_CONFIG_OFFSET] |= TC_BOOT_CFG_FLAG_RESCUE_DISK_ORIG_SYS_LOADER;
+ }
+ catch (Exception &e)
+ {
+ e.Show (ParentWindow);
+ Warning ("SYS_LOADER_UNAVAILABLE_FOR_RESCUE_DISK");
+ }
+
+ // Boot loader backup
+ CreateBootLoaderInMemory (image + TC_CD_BOOTSECTOR_OFFSET + TC_BOOT_LOADER_BACKUP_RESCUE_DISK_SECTOR_OFFSET, TC_BOOT_LOADER_AREA_SIZE, false);
+
+ RescueIsoImage = new byte[RescueIsoImageSize];
+ if (!RescueIsoImage)
+ throw bad_alloc();
+ memcpy (RescueIsoImage, image, RescueIsoImageSize);
+
+ if (!isoImagePath.empty())
+ {
+ File isoFile (isoImagePath, false, true);
+ isoFile.Write (image, RescueIsoImageSize);
+ }
+ }
+#endif
+
+
+ bool BootEncryption::IsCDDrivePresent ()
+ {
+ for (char drive = 'Z'; drive >= 'C'; --drive)
+ {
+ string path = "X:\\";
+ path[0] = drive;
+
+ if (GetDriveType (path.c_str()) == DRIVE_CDROM)
+ return true;
+ }
+
+ return false;
+ }
+
+
+ bool BootEncryption::VerifyRescueDisk ()
+ {
+ if (!RescueIsoImage)
+ throw ParameterIncorrect (SRC_POS);
+
+ for (char drive = 'Z'; drive >= 'C'; --drive)
+ {
+ try
+ {
+ string path = "X:";
+ path[0] = drive;
+
+ Device driveDevice (path, true);
+ size_t verifiedSectorCount = (TC_CD_BOOTSECTOR_OFFSET + TC_ORIG_BOOT_LOADER_BACKUP_SECTOR_OFFSET + TC_BOOT_LOADER_AREA_SIZE) / 2048;
+ Buffer buffer ((verifiedSectorCount + 1) * 2048);
+
+ DWORD bytesRead = driveDevice.Read (buffer.Ptr(), buffer.Size());
+ if (bytesRead != buffer.Size())
+ continue;
+
+ if (memcmp (buffer.Ptr(), RescueIsoImage, buffer.Size()) == 0)
+ return true;
+ }
+ catch (...) { }
+ }
+
+ return false;
+ }
+
+
+#ifndef SETUP
+
+ void BootEncryption::CreateVolumeHeader (uint64 volumeSize, uint64 encryptedAreaStart, Password *password, int ea, int mode, int pkcs5)
+ {
+ PCRYPTO_INFO cryptoInfo = NULL;
+
+ if (!IsRandomNumberGeneratorStarted())
+ throw ParameterIncorrect (SRC_POS);
+
+ throw_sys_if (CreateVolumeHeaderInMemory (TRUE, (char *) VolumeHeader, ea, mode, password, pkcs5, NULL, &cryptoInfo,
+ volumeSize, 0, encryptedAreaStart, 0, TC_SYSENC_KEYSCOPE_MIN_REQ_PROG_VERSION, TC_HEADER_FLAG_ENCRYPTED_SYSTEM, TC_SECTOR_SIZE_BIOS, FALSE) != 0);
+
+ finally_do_arg (PCRYPTO_INFO*, &cryptoInfo, { crypto_close (*finally_arg); });
+
+ // Initial rescue disk assumes encryption of the drive has been completed (EncryptedAreaLength == volumeSize)
+ memcpy (RescueVolumeHeader, VolumeHeader, sizeof (RescueVolumeHeader));
+ ReadVolumeHeader (TRUE, (char *) RescueVolumeHeader, password, NULL, cryptoInfo);
+
+ DecryptBuffer (RescueVolumeHeader + HEADER_ENCRYPTED_DATA_OFFSET, HEADER_ENCRYPTED_DATA_SIZE, cryptoInfo);
+
+ if (GetHeaderField32 (RescueVolumeHeader, TC_HEADER_OFFSET_MAGIC) != 0x54525545)
+ throw ParameterIncorrect (SRC_POS);
+
+ byte *fieldPos = RescueVolumeHeader + TC_HEADER_OFFSET_ENCRYPTED_AREA_LENGTH;
+ mputInt64 (fieldPos, volumeSize);
+
+ // CRC of the header fields
+ uint32 crc = GetCrc32 (RescueVolumeHeader + TC_HEADER_OFFSET_MAGIC, TC_HEADER_OFFSET_HEADER_CRC - TC_HEADER_OFFSET_MAGIC);
+ fieldPos = RescueVolumeHeader + TC_HEADER_OFFSET_HEADER_CRC;
+ mputLong (fieldPos, crc);
+
+ EncryptBuffer (RescueVolumeHeader + HEADER_ENCRYPTED_DATA_OFFSET, HEADER_ENCRYPTED_DATA_SIZE, cryptoInfo);
+
+ VolumeHeaderValid = true;
+ RescueVolumeHeaderValid = true;
+ }
+
+
+ void BootEncryption::InstallVolumeHeader ()
+ {
+ if (!VolumeHeaderValid)
+ throw ParameterIncorrect (SRC_POS);
+
+ Device device (GetSystemDriveConfiguration().DevicePath);
+
+ device.SeekAt (TC_BOOT_VOLUME_HEADER_SECTOR_OFFSET);
+ device.Write ((byte *) VolumeHeader, sizeof (VolumeHeader));
+ }
+
+
+ // For synchronous operations use AbortSetupWait()
+ void BootEncryption::AbortSetup ()
+ {
+ CallDriver (TC_IOCTL_ABORT_BOOT_ENCRYPTION_SETUP);
+ }
+
+
+ // For asynchronous operations use AbortSetup()
+ void BootEncryption::AbortSetupWait ()
+ {
+ CallDriver (TC_IOCTL_ABORT_BOOT_ENCRYPTION_SETUP);
+
+ BootEncryptionStatus encStatus = GetStatus();
+
+ while (encStatus.SetupInProgress)
+ {
+ Sleep (TC_ABORT_TRANSFORM_WAIT_INTERVAL);
+ encStatus = GetStatus();
+ }
+ }
+
+
+ void BootEncryption::BackupSystemLoader ()
+ {
+ Device device (GetSystemDriveConfiguration().DevicePath, true);
+
+ byte bootLoaderBuf[TC_BOOT_LOADER_AREA_SECTOR_COUNT * TC_SECTOR_SIZE_BIOS];
+
+ device.SeekAt (0);
+ device.Read (bootLoaderBuf, sizeof (bootLoaderBuf));
+
+ // Prevent TrueCrypt loader from being backed up
+ for (size_t i = 0; i < sizeof (bootLoaderBuf) - strlen (TC_APP_NAME); ++i)
+ {
+ if (memcmp (bootLoaderBuf + i, TC_APP_NAME, strlen (TC_APP_NAME)) == 0)
+ {
+ if (AskWarnNoYes ("TC_BOOT_LOADER_ALREADY_INSTALLED") == IDNO)
+ throw UserAbort (SRC_POS);
+ return;
+ }
+ }
+
+ File backupFile (GetSystemLoaderBackupPath(), false, true);
+ backupFile.Write (bootLoaderBuf, sizeof (bootLoaderBuf));
+ }
+
+
+ void BootEncryption::RestoreSystemLoader ()
+ {
+ byte bootLoaderBuf[TC_BOOT_LOADER_AREA_SECTOR_COUNT * TC_SECTOR_SIZE_BIOS];
+
+ File backupFile (GetSystemLoaderBackupPath(), true);
+
+ if (backupFile.Read (bootLoaderBuf, sizeof (bootLoaderBuf)) != sizeof (bootLoaderBuf))
+ throw ParameterIncorrect (SRC_POS);
+
+ Device device (GetSystemDriveConfiguration().DevicePath);
+
+ // Preserve current partition table
+ byte mbr[TC_SECTOR_SIZE_BIOS];
+ device.SeekAt (0);
+ device.Read (mbr, sizeof (mbr));
+ memcpy (bootLoaderBuf + TC_MAX_MBR_BOOT_CODE_SIZE, mbr + TC_MAX_MBR_BOOT_CODE_SIZE, sizeof (mbr) - TC_MAX_MBR_BOOT_CODE_SIZE);
+
+ device.SeekAt (0);
+ device.Write (bootLoaderBuf, sizeof (bootLoaderBuf));
+ }
+
+#endif // SETUP
+
+ void BootEncryption::RegisterFilter (bool registerFilter, FilterType filterType, const GUID *deviceClassGuid)
+ {
+ string filter;
+ string filterReg;
+ HKEY regKey;
+
+ switch (filterType)
+ {
+ case DriveFilter:
+ case VolumeFilter:
+ filter = "truecrypt";
+ filterReg = "UpperFilters";
+ regKey = SetupDiOpenClassRegKey (deviceClassGuid, KEY_READ | KEY_WRITE);
+ throw_sys_if (regKey == INVALID_HANDLE_VALUE);
+
+ break;
+
+ case DumpFilter:
+ if (!IsOSAtLeast (WIN_VISTA))
+ return;
+
+ filter = "truecrypt.sys";
+ filterReg = "DumpFilters";
+ SetLastError (RegOpenKeyEx (HKEY_LOCAL_MACHINE, "SYSTEM\\CurrentControlSet\\Control\\CrashControl", 0, KEY_READ | KEY_WRITE, &regKey));
+ throw_sys_if (GetLastError() != ERROR_SUCCESS);
+
+ break;
+
+ default:
+ throw ParameterIncorrect (SRC_POS);
+ }
+
+ finally_do_arg (HKEY, regKey, { RegCloseKey (finally_arg); });
+
+ if (registerFilter && filterType != DumpFilter)
+ {
+ // Register class filter below all other filters in the stack
+
+ size_t strSize = filter.size() + 1;
+ byte regKeyBuf[65536];
+ DWORD size = sizeof (regKeyBuf) - strSize;
+
+ // SetupInstallFromInfSection() does not support prepending of values so we have to modify the registry directly
+ strncpy ((char *) regKeyBuf, filter.c_str(), sizeof (regKeyBuf));
+
+ if (RegQueryValueEx (regKey, filterReg.c_str(), NULL, NULL, regKeyBuf + strSize, &size) != ERROR_SUCCESS)
+ size = 1;
+
+ SetLastError (RegSetValueEx (regKey, filterReg.c_str(), 0, REG_MULTI_SZ, regKeyBuf, strSize + size));
+ throw_sys_if (GetLastError() != ERROR_SUCCESS);
+ }
+ else
+ {
+ string infFileName = GetTempPath() + "\\truecrypt_driver_setup.inf";
+
+ File infFile (infFileName, false, true);
+ finally_do_arg (string, infFileName, { DeleteFile (finally_arg.c_str()); });
+
+ string infTxt = "[truecrypt]\r\n"
+ + string (registerFilter ? "Add" : "Del") + "Reg=truecrypt_reg\r\n\r\n"
+ "[truecrypt_reg]\r\n"
+ "HKR,,\"" + filterReg + "\",0x0001" + string (registerFilter ? "0008" : "8002") + ",\"" + filter + "\"\r\n";
+
+ infFile.Write ((byte *) infTxt.c_str(), infTxt.size());
+ infFile.Close();
+
+ HINF hInf = SetupOpenInfFile (infFileName.c_str(), NULL, INF_STYLE_OLDNT | INF_STYLE_WIN4, NULL);
+ throw_sys_if (hInf == INVALID_HANDLE_VALUE);
+ finally_do_arg (HINF, hInf, { SetupCloseInfFile (finally_arg); });
+
+ throw_sys_if (!SetupInstallFromInfSection (ParentWindow, hInf, "truecrypt", SPINST_REGISTRY, regKey, NULL, 0, NULL, NULL, NULL, NULL));
+ }
+ }
+
+ void BootEncryption::RegisterFilterDriver (bool registerDriver, FilterType filterType)
+ {
+ if (!IsAdmin() && IsUacSupported())
+ {
+ Elevator::RegisterFilterDriver (registerDriver, filterType);
+ return;
+ }
+
+ switch (filterType)
+ {
+ case DriveFilter:
+ RegisterFilter (registerDriver, filterType, &GUID_DEVCLASS_DISKDRIVE);
+ break;
+
+ case VolumeFilter:
+ RegisterFilter (registerDriver, filterType, &GUID_DEVCLASS_VOLUME);
+ RegisterFilter (registerDriver, filterType, &GUID_DEVCLASS_FLOPPYDISK);
+ break;
+
+ case DumpFilter:
+ RegisterFilter (registerDriver, filterType);
+ break;
+
+ default:
+ throw ParameterIncorrect (SRC_POS);
+ }
+ }
+
+#ifndef SETUP
+
+ void BootEncryption::RegisterSystemFavoritesService (BOOL registerService)
+ {
+ if (!IsAdmin() && IsUacSupported())
+ {
+ Elevator::RegisterSystemFavoritesService (registerService);
+ return;
+ }
+
+ SC_HANDLE scm = OpenSCManager (NULL, NULL, SC_MANAGER_ALL_ACCESS);
+ throw_sys_if (!scm);
+
+ string servicePath = GetServiceConfigPath (TC_APP_NAME ".exe");
+
+ if (registerService)
+ {
+ try
+ {
+ RegisterSystemFavoritesService (FALSE);
+ }
+ catch (...) { }
+
+ char appPath[TC_MAX_PATH];
+ throw_sys_if (!GetModuleFileName (NULL, appPath, sizeof (appPath)));
+
+ throw_sys_if (!CopyFile (appPath, servicePath.c_str(), FALSE));
+
+ SC_HANDLE service = CreateService (scm,
+ TC_SYSTEM_FAVORITES_SERVICE_NAME,
+ TC_APP_NAME " System Favorites",
+ SERVICE_ALL_ACCESS,
+ SERVICE_WIN32_OWN_PROCESS,
+ SERVICE_AUTO_START,
+ SERVICE_ERROR_NORMAL,
+ (string ("\"") + servicePath + "\" " TC_SYSTEM_FAVORITES_SERVICE_CMDLINE_OPTION).c_str(),
+ TC_SYSTEM_FAVORITES_SERVICE_LOAD_ORDER_GROUP,
+ NULL,
+ NULL,
+ NULL,
+ NULL);
+
+ throw_sys_if (!service);
+
+ SERVICE_DESCRIPTION description;
+ description.lpDescription = "Mounts TrueCrypt system favorite volumes.";
+ ChangeServiceConfig2 (service, SERVICE_CONFIG_DESCRIPTION, &description);
+
+ CloseServiceHandle (service);
+
+ try
+ {
+ WriteLocalMachineRegistryString ("SYSTEM\\CurrentControlSet\\Control\\SafeBoot\\Minimal\\" TC_SYSTEM_FAVORITES_SERVICE_NAME, NULL, "Service", FALSE);
+ WriteLocalMachineRegistryString ("SYSTEM\\CurrentControlSet\\Control\\SafeBoot\\Network\\" TC_SYSTEM_FAVORITES_SERVICE_NAME, NULL, "Service", FALSE);
+
+ SetDriverConfigurationFlag (TC_DRIVER_CONFIG_CACHE_BOOT_PASSWORD_FOR_SYS_FAVORITES, true);
+ }
+ catch (...)
+ {
+ try
+ {
+ RegisterSystemFavoritesService (false);
+ }
+ catch (...) { }
+
+ throw;
+ }
+ }
+ else
+ {
+ SetDriverConfigurationFlag (TC_DRIVER_CONFIG_CACHE_BOOT_PASSWORD_FOR_SYS_FAVORITES, false);
+
+ DeleteLocalMachineRegistryKey ("SYSTEM\\CurrentControlSet\\Control\\SafeBoot\\Minimal", TC_SYSTEM_FAVORITES_SERVICE_NAME);
+ DeleteLocalMachineRegistryKey ("SYSTEM\\CurrentControlSet\\Control\\SafeBoot\\Network", TC_SYSTEM_FAVORITES_SERVICE_NAME);
+
+ SC_HANDLE service = OpenService (scm, TC_SYSTEM_FAVORITES_SERVICE_NAME, SERVICE_ALL_ACCESS);
+ throw_sys_if (!service);
+
+ throw_sys_if (!DeleteService (service));
+ CloseServiceHandle (service);
+
+ DeleteFile (servicePath.c_str());
+ }
+ }
+
+ void BootEncryption::CheckRequirements ()
+ {
+ if (nCurrentOS == WIN_2000)
+ throw ErrorException ("SYS_ENCRYPTION_UNSUPPORTED_ON_CURRENT_OS");
+
+ if (CurrentOSMajor == 6 && CurrentOSMinor == 0 && CurrentOSServicePack < 1)
+ throw ErrorException ("SYS_ENCRYPTION_UNSUPPORTED_ON_VISTA_SP0");
+
+ if (IsNonInstallMode())
+ throw ErrorException ("FEATURE_REQUIRES_INSTALLATION");
+
+ SystemDriveConfiguration config = GetSystemDriveConfiguration ();
+
+ if (config.SystemPartition.IsGPT)
+ throw ErrorException ("GPT_BOOT_DRIVE_UNSUPPORTED");
+
+ if (SystemDriveIsDynamic())
+ throw ErrorException ("SYSENC_UNSUPPORTED_FOR_DYNAMIC_DISK");
+
+ if (config.InitialUnallocatedSpace < TC_BOOT_LOADER_AREA_SIZE)
+ throw ErrorException ("NO_SPACE_FOR_BOOT_LOADER");
+
+ DISK_GEOMETRY geometry = GetDriveGeometry (config.DriveNumber);
+
+ if (geometry.BytesPerSector != TC_SECTOR_SIZE_BIOS)
+ throw ErrorException ("SYSENC_UNSUPPORTED_SECTOR_SIZE_BIOS");
+
+ bool activePartitionFound = false;
+ if (!config.SystemPartition.IsGPT)
+ {
+ // Determine whether there is an Active partition on the system drive
+ foreach (const Partition &partition, config.Partitions)
+ {
+ if (partition.Info.BootIndicator)
+ {
+ activePartitionFound = true;
+ break;
+ }
+ }
+ }
+
+ if (!config.SystemLoaderPresent || !activePartitionFound)
+ {
+ static bool confirmed = false;
+
+ if (!confirmed && AskWarnNoYes ("WINDOWS_NOT_ON_BOOT_DRIVE_ERROR") == IDNO)
+ throw UserAbort (SRC_POS);
+
+ confirmed = true;
+ }
+ }
+
+
+ void BootEncryption::CheckRequirementsHiddenOS ()
+ {
+ // It is assumed that CheckRequirements() had been called (so we don't check e.g. whether it's GPT).
+
+ // The user may have modified/added/deleted partitions since the partition table was last scanned.
+ InvalidateCachedSysDriveProperties ();
+
+ GetPartitionForHiddenOS ();
+ }
+
+
+ void BootEncryption::InitialSecurityChecksForHiddenOS ()
+ {
+ char windowsDrive = (char) toupper (GetWindowsDirectory()[0]);
+
+ // Paging files
+ bool pagingFilesOk = !IsPagingFileActive (TRUE);
+
+ char pagingFileRegData[65536];
+ DWORD pagingFileRegDataSize = sizeof (pagingFileRegData);
+
+ if (ReadLocalMachineRegistryMultiString ("System\\CurrentControlSet\\Control\\Session Manager\\Memory Management", "PagingFiles", pagingFileRegData, &pagingFileRegDataSize)
+ && pagingFileRegDataSize > 4)
+ {
+ for (size_t i = 1; i < pagingFileRegDataSize - 2; ++i)
+ {
+ if (memcmp (pagingFileRegData + i, ":\\", 2) == 0 && toupper (pagingFileRegData[i - 1]) != windowsDrive)
+ {
+ pagingFilesOk = false;
+ break;
+ }
+ }
+ }
+
+ if (!pagingFilesOk)
+ {
+ if (AskWarnYesNoString ((wchar_t *) (wstring (GetString ("PAGING_FILE_NOT_ON_SYS_PARTITION"))
+ + GetString ("LEAKS_OUTSIDE_SYSPART_UNIVERSAL_EXPLANATION")
+ + L"\n\n\n"
+ + GetString ("RESTRICT_PAGING_FILES_TO_SYS_PARTITION")
+ ).c_str()) == IDYES)
+ {
+ RestrictPagingFilesToSystemPartition();
+ RestartComputer();
+ AbortProcessSilent();
+ }
+
+ throw ErrorException (wstring (GetString ("PAGING_FILE_NOT_ON_SYS_PARTITION"))
+ + GetString ("LEAKS_OUTSIDE_SYSPART_UNIVERSAL_EXPLANATION"));
+ }
+
+ // User profile
+ char *configPath = GetConfigPath ("dummy");
+ if (configPath && toupper (configPath[0]) != windowsDrive)
+ {
+ throw ErrorException (wstring (GetString ("USER_PROFILE_NOT_ON_SYS_PARTITION"))
+ + GetString ("LEAKS_OUTSIDE_SYSPART_UNIVERSAL_EXPLANATION"));
+ }
+
+ // Temporary files
+ if (toupper (GetTempPath()[0]) != windowsDrive)
+ {
+ throw ErrorException (wstring (GetString ("TEMP_NOT_ON_SYS_PARTITION"))
+ + GetString ("LEAKS_OUTSIDE_SYSPART_UNIVERSAL_EXPLANATION"));
+ }
+ }
+
+
+ // This operation may take a long time when an antivirus is installed and its real-time protection enabled.
+ // Therefore, if calling it without the wizard displayed, it should be called with displayWaitDialog set to true.
+ void BootEncryption::Deinstall (bool displayWaitDialog)
+ {
+ BootEncryptionStatus encStatus = GetStatus();
+
+ if (encStatus.DriveEncrypted || encStatus.DriveMounted)
+ throw ParameterIncorrect (SRC_POS);
+
+ SystemDriveConfiguration config = GetSystemDriveConfiguration ();
+
+ if (encStatus.VolumeHeaderPresent)
+ {
+ // Verify CRC of header salt
+ Device device (config.DevicePath, true);
+ byte header[TC_BOOT_ENCRYPTION_VOLUME_HEADER_SIZE];
+
+ device.SeekAt (TC_BOOT_VOLUME_HEADER_SECTOR_OFFSET);
+ device.Read (header, sizeof (header));
+
+ if (encStatus.VolumeHeaderSaltCrc32 != GetCrc32 ((byte *) header, PKCS5_SALT_SIZE))
+ throw ParameterIncorrect (SRC_POS);
+ }
+
+ try
+ {
+ RegisterFilterDriver (false, DriveFilter);
+ RegisterFilterDriver (false, VolumeFilter);
+ RegisterFilterDriver (false, DumpFilter);
+ SetDriverServiceStartType (SERVICE_SYSTEM_START);
+ }
+ catch (...)
+ {
+ try
+ {
+ RegisterBootDriver (IsHiddenSystemRunning());
+ }
+ catch (...) { }
+
+ throw;
+ }
+
+ SetHiddenOSCreationPhase (TC_HIDDEN_OS_CREATION_PHASE_NONE); // In case RestoreSystemLoader() fails
+
+ try
+ {
+ RegisterSystemFavoritesService (false);
+ }
+ catch (...) { }
+
+ try
+ {
+ if (displayWaitDialog)
+ DisplayStaticModelessWaitDlg (ParentWindow);
+
+ finally_do_arg (bool, displayWaitDialog, { if (finally_arg) CloseStaticModelessWaitDlg(); });
+
+ RestoreSystemLoader ();
+ }
+ catch (Exception &e)
+ {
+ e.Show (ParentWindow);
+ throw ErrorException ("SYS_LOADER_RESTORE_FAILED");
+ }
+ }
+
+
+ int BootEncryption::ChangePassword (Password *oldPassword, Password *newPassword, int pkcs5)
+ {
+ BootEncryptionStatus encStatus = GetStatus();
+
+ if (encStatus.SetupInProgress)
+ throw ParameterIncorrect (SRC_POS);
+
+ SystemDriveConfiguration config = GetSystemDriveConfiguration ();
+
+ char header[TC_BOOT_ENCRYPTION_VOLUME_HEADER_SIZE];
+ Device device (config.DevicePath);
+
+ // Only one algorithm is currently supported
+ if (pkcs5 != 0)
+ throw ParameterIncorrect (SRC_POS);
+
+ int64 headerOffset = TC_BOOT_VOLUME_HEADER_SECTOR_OFFSET;
+ int64 backupHeaderOffset = -1;
+
+ if (encStatus.HiddenSystem)
+ {
+ headerOffset = encStatus.HiddenSystemPartitionStart + TC_HIDDEN_VOLUME_HEADER_OFFSET;
+
+ // Find hidden system partition
+ foreach (const Partition &partition, config.Partitions)
+ {
+ if (partition.Info.StartingOffset.QuadPart == encStatus.HiddenSystemPartitionStart)
+ {
+ backupHeaderOffset = partition.Info.StartingOffset.QuadPart + partition.Info.PartitionLength.QuadPart - TC_VOLUME_HEADER_SIZE;
+ break;
+ }
+ }
+
+ if (backupHeaderOffset == -1)
+ throw ParameterIncorrect (SRC_POS);
+ }
+
+ device.SeekAt (headerOffset);
+ device.Read ((byte *) header, sizeof (header));
+
+ PCRYPTO_INFO cryptoInfo = NULL;
+
+ int status = ReadVolumeHeader (!encStatus.HiddenSystem, header, oldPassword, &cryptoInfo, NULL);
+ finally_do_arg (PCRYPTO_INFO, cryptoInfo, { if (finally_arg) crypto_close (finally_arg); });
+
+ if (status != 0)
+ {
+ handleError (ParentWindow, status);
+ return status;
+ }
+
+ // Change the PKCS-5 PRF if requested by user
+ if (pkcs5 != 0)
+ {
+ cryptoInfo->pkcs5 = pkcs5;
+ RandSetHashFunction (pkcs5);
+ }
+
+ throw_sys_if (Randinit () != 0);
+ finally_do ({ RandStop (FALSE); });
+
+ NormalCursor();
+ UserEnrichRandomPool (ParentWindow);
+ WaitCursor();
+
+ /* The header will be re-encrypted PRAND_DISK_WIPE_PASSES times to prevent adversaries from using
+ techniques such as magnetic force microscopy or magnetic force scanning tunnelling microscopy
+ to recover the overwritten header. According to Peter Gutmann, data should be overwritten 22
+ times (ideally, 35 times) using non-random patterns and pseudorandom data. However, as users might
+ impatiently interupt the process (etc.) we will not use the Gutmann's patterns but will write the
+ valid re-encrypted header, i.e. pseudorandom data, and there will be many more passes than Guttman
+ recommends. During each pass we will write a valid working header. Each pass will use the same master
+ key, and also the same header key, secondary key (XTS), etc., derived from the new password. The only
+ item that will be different for each pass will be the salt. This is sufficient to cause each "version"
+ of the header to differ substantially and in a random manner from the versions written during the
+ other passes. */
+
+ bool headerUpdated = false;
+ int result = ERR_SUCCESS;
+
+ try
+ {
+ BOOL backupHeader = FALSE;
+ while (TRUE)
+ {
+ for (int wipePass = 0; wipePass < PRAND_DISK_WIPE_PASSES; wipePass++)
+ {
+ PCRYPTO_INFO tmpCryptoInfo = NULL;
+
+ status = CreateVolumeHeaderInMemory (!encStatus.HiddenSystem,
+ header,
+ cryptoInfo->ea,
+ cryptoInfo->mode,
+ newPassword,
+ cryptoInfo->pkcs5,
+ (char *) cryptoInfo->master_keydata,
+ &tmpCryptoInfo,
+ cryptoInfo->VolumeSize.Value,
+ cryptoInfo->hiddenVolumeSize,
+ cryptoInfo->EncryptedAreaStart.Value,
+ cryptoInfo->EncryptedAreaLength.Value,
+ cryptoInfo->RequiredProgramVersion,
+ cryptoInfo->HeaderFlags | TC_HEADER_FLAG_ENCRYPTED_SYSTEM,
+ cryptoInfo->SectorSize,
+ wipePass < PRAND_DISK_WIPE_PASSES - 1);
+
+ if (tmpCryptoInfo)
+ crypto_close (tmpCryptoInfo);
+
+ if (status != 0)
+ {
+ handleError (ParentWindow, status);
+ return status;
+ }
+
+ device.SeekAt (headerOffset);
+ device.Write ((byte *) header, sizeof (header));
+ headerUpdated = true;
+ }
+
+ if (!encStatus.HiddenSystem || backupHeader)
+ break;
+
+ backupHeader = TRUE;
+ headerOffset = backupHeaderOffset;
+ }
+ }
+ catch (Exception &e)
+ {
+ e.Show (ParentWindow);
+ result = ERR_OS_ERROR;
+ }
+
+ if (headerUpdated)
+ {
+ ReopenBootVolumeHeaderRequest reopenRequest;
+ reopenRequest.VolumePassword = *newPassword;
+ finally_do_arg (ReopenBootVolumeHeaderRequest*, &reopenRequest, { burn (finally_arg, sizeof (*finally_arg)); });
+
+ CallDriver (TC_IOCTL_REOPEN_BOOT_VOLUME_HEADER, &reopenRequest, sizeof (reopenRequest));
+ }
+
+ return result;
+ }
+
+
+ void BootEncryption::CheckEncryptionSetupResult ()
+ {
+ CallDriver (TC_IOCTL_GET_BOOT_ENCRYPTION_SETUP_RESULT);
+ }
+
+
+ void BootEncryption::Install (bool hiddenSystem)
+ {
+ BootEncryptionStatus encStatus = GetStatus();
+ if (encStatus.DriveMounted)
+ throw ParameterIncorrect (SRC_POS);
+
+ try
+ {
+ InstallBootLoader (false, hiddenSystem);
+
+ if (!hiddenSystem)
+ InstallVolumeHeader ();
+
+ RegisterBootDriver (hiddenSystem);
+ }
+ catch (Exception &)
+ {
+ try
+ {
+ RestoreSystemLoader ();
+ }
+ catch (Exception &e)
+ {
+ e.Show (ParentWindow);
+ }
+
+ throw;
+ }
+ }
+
+
+ void BootEncryption::PrepareHiddenOSCreation (int ea, int mode, int pkcs5)
+ {
+ BootEncryptionStatus encStatus = GetStatus();
+ if (encStatus.DriveMounted)
+ throw ParameterIncorrect (SRC_POS);
+
+ CheckRequirements();
+ BackupSystemLoader();
+
+ SelectedEncryptionAlgorithmId = ea;
+ }
+
+
+ void BootEncryption::PrepareInstallation (bool systemPartitionOnly, Password &password, int ea, int mode, int pkcs5, const string &rescueIsoImagePath)
+ {
+ BootEncryptionStatus encStatus = GetStatus();
+ if (encStatus.DriveMounted)
+ throw ParameterIncorrect (SRC_POS);
+
+ CheckRequirements ();
+
+ SystemDriveConfiguration config = GetSystemDriveConfiguration();
+
+ // Some chipset drivers may prevent access to the last sector of the drive
+ if (!systemPartitionOnly)
+ {
+ DISK_GEOMETRY geometry = GetDriveGeometry (config.DriveNumber);
+ Buffer sector (geometry.BytesPerSector);
+
+ Device device (config.DevicePath);
+
+ try
+ {
+ device.SeekAt (config.DrivePartition.Info.PartitionLength.QuadPart - geometry.BytesPerSector);
+ device.Read (sector.Ptr(), sector.Size());
+ }
+ catch (SystemException &e)
+ {
+ if (e.ErrorCode != ERROR_CRC)
+ {
+ e.Show (ParentWindow);
+ Error ("WHOLE_DRIVE_ENCRYPTION_PREVENTED_BY_DRIVERS");
+ throw UserAbort (SRC_POS);
+ }
+ }
+ }
+
+ BackupSystemLoader ();
+
+ uint64 volumeSize;
+ uint64 encryptedAreaStart;
+
+ if (systemPartitionOnly)
+ {
+ volumeSize = config.SystemPartition.Info.PartitionLength.QuadPart;
+ encryptedAreaStart = config.SystemPartition.Info.StartingOffset.QuadPart;
+ }
+ else
+ {
+ volumeSize = config.DrivePartition.Info.PartitionLength.QuadPart - TC_BOOT_LOADER_AREA_SIZE;
+ encryptedAreaStart = config.DrivePartition.Info.StartingOffset.QuadPart + TC_BOOT_LOADER_AREA_SIZE;
+ }
+
+ SelectedEncryptionAlgorithmId = ea;
+ CreateVolumeHeader (volumeSize, encryptedAreaStart, &password, ea, mode, pkcs5);
+
+ if (!rescueIsoImagePath.empty())
+ CreateRescueIsoImage (true, rescueIsoImagePath);
+ }
+
+ bool BootEncryption::IsPagingFileActive (BOOL checkNonWindowsPartitionsOnly)
+ {
+ if (!IsAdmin() && IsUacSupported())
+ return Elevator::IsPagingFileActive (checkNonWindowsPartitionsOnly) ? true : false;
+
+ return ::IsPagingFileActive (checkNonWindowsPartitionsOnly) ? true : false;
+ }
+
+ void BootEncryption::RestrictPagingFilesToSystemPartition ()
+ {
+ char pagingFiles[128];
+ strncpy (pagingFiles, "X:\\pagefile.sys 0 0", sizeof (pagingFiles));
+ pagingFiles[0] = GetWindowsDirectory()[0];
+
+ throw_sys_if (!WriteLocalMachineRegistryMultiString ("System\\CurrentControlSet\\Control\\Session Manager\\Memory Management", "PagingFiles", pagingFiles, strlen (pagingFiles) + 2));
+ }
+
+ void BootEncryption::WriteLocalMachineRegistryDwordValue (char *keyPath, char *valueName, DWORD value)
+ {
+ if (!IsAdmin() && IsUacSupported())
+ {
+ Elevator::WriteLocalMachineRegistryDwordValue (keyPath, valueName, value);
+ return;
+ }
+
+ throw_sys_if (!WriteLocalMachineRegistryDword (keyPath, valueName, value));
+ }
+
+ void BootEncryption::SetDriverConfigurationFlag (uint32 flag, bool state)
+ {
+ DWORD configMap = ReadDriverConfigurationFlags();
+
+ if (state)
+ configMap |= flag;
+ else
+ configMap &= ~flag;
+
+ WriteLocalMachineRegistryDwordValue ("SYSTEM\\CurrentControlSet\\Services\\truecrypt", TC_DRIVER_CONFIG_REG_VALUE_NAME, configMap);
+ }
+
+ void BootEncryption::StartDecryption (BOOL discardUnreadableEncryptedSectors)
+ {
+ BootEncryptionStatus encStatus = GetStatus();
+
+ if (!encStatus.DeviceFilterActive || !encStatus.DriveMounted || encStatus.SetupInProgress)
+ throw ParameterIncorrect (SRC_POS);
+
+ BootEncryptionSetupRequest request;
+ ZeroMemory (&request, sizeof (request));
+
+ request.SetupMode = SetupDecryption;
+ request.DiscardUnreadableEncryptedSectors = discardUnreadableEncryptedSectors;
+
+ CallDriver (TC_IOCTL_BOOT_ENCRYPTION_SETUP, &request, sizeof (request), NULL, 0);
+ }
+
+ void BootEncryption::StartEncryption (WipeAlgorithmId wipeAlgorithm, bool zeroUnreadableSectors)
+ {
+ BootEncryptionStatus encStatus = GetStatus();
+
+ if (!encStatus.DeviceFilterActive || !encStatus.DriveMounted || encStatus.SetupInProgress)
+ throw ParameterIncorrect (SRC_POS);
+
+ BootEncryptionSetupRequest request;
+ ZeroMemory (&request, sizeof (request));
+
+ request.SetupMode = SetupEncryption;
+ request.WipeAlgorithm = wipeAlgorithm;
+ request.ZeroUnreadableSectors = zeroUnreadableSectors;
+
+ CallDriver (TC_IOCTL_BOOT_ENCRYPTION_SETUP, &request, sizeof (request), NULL, 0);
+ }
+
+ void BootEncryption::CopyFileAdmin (const string &sourceFile, const string &destinationFile)
+ {
+ if (!IsAdmin())
+ {
+ if (!IsUacSupported())
+ {
+ SetLastError (ERROR_ACCESS_DENIED);
+ throw SystemException();
+ }
+ else
+ Elevator::CopyFile (sourceFile, destinationFile);
+ }
+ else
+ throw_sys_if (!::CopyFile (sourceFile.c_str(), destinationFile.c_str(), FALSE));
+ }
+
+ void BootEncryption::DeleteFileAdmin (const string &file)
+ {
+ if (!IsAdmin() && IsUacSupported())
+ Elevator::DeleteFile (file);
+ else
+ throw_sys_if (!::DeleteFile (file.c_str()));
+ }
+
+#endif // !SETUP
+
+ uint32 BootEncryption::ReadDriverConfigurationFlags ()
+ {
+ DWORD configMap;
+
+ if (!ReadLocalMachineRegistryDword ("SYSTEM\\CurrentControlSet\\Services\\truecrypt", TC_DRIVER_CONFIG_REG_VALUE_NAME, &configMap))
+ configMap = 0;
+
+ return configMap;
+ }
+
+ void BootEncryption::WriteBootDriveSector (uint64 offset, byte *data)
+ {
+ WriteBootDriveSectorRequest request;
+ request.Offset.QuadPart = offset;
+ memcpy (request.Data, data, sizeof (request.Data));
+
+ CallDriver (TC_IOCTL_WRITE_BOOT_DRIVE_SECTOR, &request, sizeof (request), NULL, 0);
+ }
+
+ void BootEncryption::RegisterBootDriver (bool hiddenSystem)
+ {
+ SetDriverServiceStartType (SERVICE_BOOT_START);
+
+ try
+ {
+ RegisterFilterDriver (false, DriveFilter);
+ RegisterFilterDriver (false, VolumeFilter);
+ RegisterFilterDriver (false, DumpFilter);
+ }
+ catch (...) { }
+
+ try
+ {
+ RegisterFilterDriver (true, DriveFilter);
+
+ if (hiddenSystem)
+ RegisterFilterDriver (true, VolumeFilter);
+
+ RegisterFilterDriver (true, DumpFilter);
+ }
+ catch (...)
+ {
+ try { RegisterFilterDriver (false, DriveFilter); } catch (...) { }
+ try { RegisterFilterDriver (false, VolumeFilter); } catch (...) { }
+ try { RegisterFilterDriver (false, DumpFilter); } catch (...) { }
+ try { SetDriverServiceStartType (SERVICE_SYSTEM_START); } catch (...) { }
+
+ throw;
+ }
+ }
+
+ bool BootEncryption::RestartComputer (void)
+ {
+ return (::RestartComputer() != FALSE);
+ }
+}