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+/*
+ 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.
+*/
+
+#ifndef TC_HEADER_Common_BootEncryption
+#define TC_HEADER_Common_BootEncryption
+
+#include "Tcdefs.h"
+#include "Dlgcode.h"
+#include "Exception.h"
+#include "Platform/PlatformBase.h"
+#include "Volumes.h"
+
+using namespace std;
+
+namespace TrueCrypt
+{
+	class File
+	{
+	public:
+		File () : FileOpen (false) { }
+		File (string path, bool readOnly = false, bool create = false);
+		~File () { Close(); }
+
+		void Close ();
+		DWORD Read (byte *buffer, DWORD size);
+		void Write (byte *buffer, DWORD size);
+		void SeekAt (int64 position);
+
+	protected:
+		bool Elevated;
+		bool FileOpen;
+		uint64 FilePointerPosition;
+		HANDLE Handle;
+		bool IsDevice;
+		string Path;
+	};
+
+
+	class Device : public File
+	{
+	public:
+		Device (string path, bool readOnly = false);
+	};
+
+
+	class Buffer
+	{
+	public:
+		Buffer (size_t size) : DataSize (size)
+		{
+			DataPtr = new byte[size];
+			if (!DataPtr)
+				throw bad_alloc();
+		}
+
+		~Buffer () { delete[] DataPtr; }
+		byte *Ptr () const { return DataPtr; }
+		size_t Size () const { return DataSize; }
+
+	protected:
+		byte *DataPtr;
+		size_t DataSize;
+	};
+
+
+	struct Partition
+	{
+		string DevicePath;
+		PARTITION_INFORMATION Info;
+		string MountPoint;
+		size_t Number;
+		BOOL IsGPT;
+		wstring VolumeNameId;
+	};
+
+	typedef list <Partition> PartitionList;
+
+#pragma pack (push)
+#pragma pack(1)
+
+	struct PartitionEntryMBR
+	{
+		byte BootIndicator;
+
+		byte StartHead;
+		byte StartCylSector;
+		byte StartCylinder;
+
+		byte Type;
+
+		byte EndHead;
+		byte EndSector;
+		byte EndCylinder;
+
+		uint32 StartLBA;
+		uint32 SectorCountLBA;
+	};
+
+	struct MBR
+	{
+		byte Code[446];
+		PartitionEntryMBR Partitions[4];
+		uint16 Signature;
+	};
+
+#pragma pack (pop)
+
+	struct SystemDriveConfiguration
+	{
+		string DeviceKernelPath;
+		string DevicePath;
+		int DriveNumber;
+		Partition DrivePartition;
+		bool ExtraBootPartitionPresent;
+		int64 InitialUnallocatedSpace;
+		PartitionList Partitions;
+		Partition SystemPartition;
+		int64 TotalUnallocatedSpace;
+		bool SystemLoaderPresent;
+	};
+
+	class BootEncryption
+	{
+	public:
+		BootEncryption (HWND parent);
+		~BootEncryption ();
+
+		enum FilterType
+		{
+			DriveFilter,
+			VolumeFilter,
+			DumpFilter
+		};
+
+		void AbortDecoyOSWipe ();
+		void AbortSetup ();
+		void AbortSetupWait ();
+		void CallDriver (DWORD ioctl, void *input = nullptr, DWORD inputSize = 0, void *output = nullptr, DWORD outputSize = 0);
+		int ChangePassword (Password *oldPassword, Password *newPassword, int pkcs5);
+		void CheckDecoyOSWipeResult ();
+		void CheckEncryptionSetupResult ();
+		void CheckRequirements ();
+		void CheckRequirementsHiddenOS ();
+		void CopyFileAdmin (const string &sourceFile, const string &destinationFile);
+		void CreateRescueIsoImage (bool initialSetup, const string &isoImagePath);
+		void Deinstall (bool displayWaitDialog = false);
+		void DeleteFileAdmin (const string &file);
+		DecoySystemWipeStatus GetDecoyOSWipeStatus ();
+		DWORD GetDriverServiceStartType ();
+		unsigned int GetHiddenOSCreationPhase ();
+		uint16 GetInstalledBootLoaderVersion ();
+		Partition GetPartitionForHiddenOS ();
+		bool IsBootLoaderOnDrive (char *devicePath);
+		BootEncryptionStatus GetStatus ();
+		string GetTempPath ();
+		void GetVolumeProperties (VOLUME_PROPERTIES_STRUCT *properties);
+		SystemDriveConfiguration GetSystemDriveConfiguration ();
+		void Install (bool hiddenSystem);
+		void InstallBootLoader (bool preserveUserConfig = false, bool hiddenOSCreation = false);
+		void InvalidateCachedSysDriveProperties ();
+		bool IsCDDrivePresent ();
+		bool IsHiddenSystemRunning ();
+		bool IsPagingFileActive (BOOL checkNonWindowsPartitionsOnly);
+		void PrepareHiddenOSCreation (int ea, int mode, int pkcs5);
+		void PrepareInstallation (bool systemPartitionOnly, Password &password, int ea, int mode, int pkcs5, const string &rescueIsoImagePath);
+		void ProbeRealSystemDriveSize ();
+		void ReadBootSectorConfig (byte *config, size_t bufLength, byte *userConfig = nullptr, string *customUserMessage = nullptr, uint16 *bootLoaderVersion = nullptr);
+		uint32 ReadDriverConfigurationFlags ();
+		void RegisterBootDriver (bool hiddenSystem);
+		void RegisterFilterDriver (bool registerDriver, FilterType filterType);
+		void RegisterSystemFavoritesService (BOOL registerService);
+		void RenameDeprecatedSystemLoaderBackup ();
+		bool RestartComputer (void);
+		void InitialSecurityChecksForHiddenOS ();
+		void RestrictPagingFilesToSystemPartition ();
+		void SetDriverConfigurationFlag (uint32 flag, bool state);
+		void SetDriverServiceStartType (DWORD startType);
+		void SetHiddenOSCreationPhase (unsigned int newPhase);
+		void StartDecryption (BOOL discardUnreadableEncryptedSectors);
+		void StartDecoyOSWipe (WipeAlgorithmId wipeAlgorithm);
+		void StartEncryption (WipeAlgorithmId wipeAlgorithm, bool zeroUnreadableSectors);
+		bool SystemDriveContainsPartitionType (byte type);
+		bool SystemDriveContainsExtendedPartition ();
+		bool SystemDriveContainsNonStandardPartitions ();
+		bool SystemPartitionCoversWholeDrive ();
+		bool SystemDriveIsDynamic ();
+		bool VerifyRescueDisk ();
+		void WipeHiddenOSCreationConfig ();
+		void WriteBootDriveSector (uint64 offset, byte *data);
+		void WriteBootSectorConfig (const byte newConfig[]);
+		void WriteBootSectorUserConfig (byte userConfig, const string &customUserMessage);
+		void WriteLocalMachineRegistryDwordValue (char *keyPath, char *valueName, DWORD value);
+
+	protected:
+		static const uint32 RescueIsoImageSize = 1835008; // Size of ISO9660 image with bootable emulated 1.44MB floppy disk image
+
+		void BackupSystemLoader ();
+		void CreateBootLoaderInMemory (byte *buffer, size_t bufferSize, bool rescueDisk, bool hiddenOSCreation = false);
+		void CreateVolumeHeader (uint64 volumeSize, uint64 encryptedAreaStart, Password *password, int ea, int mode, int pkcs5);
+		string GetSystemLoaderBackupPath ();
+		uint32 GetChecksum (byte *data, size_t size);
+		DISK_GEOMETRY GetDriveGeometry (int driveNumber);
+		PartitionList GetDrivePartitions (int driveNumber);
+		wstring GetRemarksOnHiddenOS ();
+		string GetWindowsDirectory ();
+		void RegisterFilter (bool registerFilter, FilterType filterType, const GUID *deviceClassGuid = nullptr);
+		void RestoreSystemLoader ();
+		void InstallVolumeHeader ();
+
+		HWND ParentWindow;
+		SystemDriveConfiguration DriveConfig;
+		int SelectedEncryptionAlgorithmId;
+		Partition HiddenOSCandidatePartition;
+		byte *RescueIsoImage;
+		byte RescueVolumeHeader[TC_BOOT_ENCRYPTION_VOLUME_HEADER_SIZE];
+		byte VolumeHeader[TC_BOOT_ENCRYPTION_VOLUME_HEADER_SIZE];
+		bool DriveConfigValid;
+		bool RealSystemDriveSizeValid;
+		bool RescueVolumeHeaderValid;
+		bool VolumeHeaderValid;
+	};
+}
+
+#define TC_ABORT_TRANSFORM_WAIT_INTERVAL	10
+
+#define MIN_HIDDENOS_DECOY_PARTITION_SIZE_RATIO_NTFS	2.1
+#define MIN_HIDDENOS_DECOY_PARTITION_SIZE_RATIO_FAT		1.05
+
+#define TC_SYS_BOOT_LOADER_BACKUP_NAME			"Original System Loader"
+#define TC_SYS_BOOT_LOADER_BACKUP_NAME_LEGACY	"Original System Loader.bak"	// Deprecated to prevent removal by some "cleaners"
+
+#define TC_SYSTEM_FAVORITES_SERVICE_NAME				TC_APP_NAME "SystemFavorites"
+#define	TC_SYSTEM_FAVORITES_SERVICE_LOAD_ORDER_GROUP	"Event Log"
+#define TC_SYSTEM_FAVORITES_SERVICE_CMDLINE_OPTION		"/systemFavoritesService"
+
+#endif // TC_HEADER_Common_BootEncryption