mirror of
https://github.com/veracrypt/VeraCrypt.git
synced 2026-05-21 21:30:48 -05:00
Mounir IDRASSI
abd089140b
When normal filesystem unmount fails, the Linux path could stop before cleaning VeraCrypt mapper, loop and FUSE objects. Add an explicit emergency dismount request that is only reached after interactive confirmation. The recovery path lazy-detaches mounted filesystems, uses deferred dmsetup removal for VeraCrypt mapper devices, detaches loop devices, and keeps normal force/ignoreOpenFiles behavior unchanged.
125 lines
7.1 KiB
C++
125 lines
7.1 KiB
C++
/*
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Derived from source code of TrueCrypt 7.1a, which is
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Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed
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by the TrueCrypt License 3.0.
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Modifications and additions to the original source code (contained in this file)
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and all other portions of this file are Copyright (c) 2013-2025 AM Crypto
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and are governed by the Apache License 2.0 the full text of which is
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contained in the file License.txt included in VeraCrypt binary and source
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code distribution packages.
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*/
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#ifndef TC_HEADER_Core_CoreBase
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#define TC_HEADER_Core_CoreBase
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#include "Platform/Platform.h"
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#include "Platform/Functor.h"
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#include "Platform/User.h"
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#include "Common/Crypto.h"
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#include "Volume/Keyfile.h"
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#include "Volume/VolumeInfo.h"
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#include "Volume/Volume.h"
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#include "Volume/VolumePassword.h"
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#include "CoreException.h"
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#include "HostDevice.h"
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#include "MountOptions.h"
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#include "VolumeCreator.h"
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namespace VeraCrypt
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{
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class CoreBase
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{
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public:
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virtual ~CoreBase ();
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virtual void ChangePassword (shared_ptr <Volume> openVolume, shared_ptr <VolumePassword> newPassword, int newPim, shared_ptr <KeyfileList> newKeyfiles, bool emvSupportEnabled, shared_ptr <Pkcs5Kdf> newPkcs5Kdf = shared_ptr <Pkcs5Kdf> (), int wipeCount = PRAND_HEADER_WIPE_PASSES) const;
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virtual shared_ptr <Volume> ChangePassword (shared_ptr <VolumePath> volumePath, bool preserveTimestamps, shared_ptr <VolumePassword> password, int pim, shared_ptr <Pkcs5Kdf> kdf, shared_ptr <KeyfileList> keyfiles, shared_ptr <VolumePassword> newPassword, int newPim, shared_ptr <KeyfileList> newKeyfiles, bool emvSupportEnabled, shared_ptr <Pkcs5Kdf> newPkcs5Kdf = shared_ptr <Pkcs5Kdf> (), int wipeCount = PRAND_HEADER_WIPE_PASSES) const;
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virtual void CheckFilesystem (shared_ptr <VolumeInfo> mountedVolume, bool repair = false) const = 0;
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virtual void CoalesceSlotNumberAndMountPoint (MountOptions &options) const;
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virtual void CreateKeyfile (const FilePath &keyfilePath) const;
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virtual void DismountFilesystem (const DirectoryPath &mountPoint, bool force) const = 0;
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virtual shared_ptr <VolumeInfo> DismountVolume (shared_ptr <VolumeInfo> mountedVolume, bool ignoreOpenFiles = false, bool syncVolumeInfo = false) = 0;
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#if defined(TC_LINUX)
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virtual shared_ptr <VolumeInfo> EmergencyDismountVolume (shared_ptr <VolumeInfo> mountedVolume) { throw NotApplicable (SRC_POS); }
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#endif
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virtual bool FilesystemSupportsLargeFiles (const FilePath &filePath) const = 0;
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virtual DirectoryPath GetDeviceMountPoint (const DevicePath &devicePath) const = 0;
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virtual uint32 GetDeviceSectorSize (const DevicePath &devicePath) const = 0;
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virtual uint64 GetDeviceSize (const DevicePath &devicePath) const = 0;
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virtual VolumeSlotNumber GetFirstFreeSlotNumber (VolumeSlotNumber startFrom = 0) const;
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virtual VolumeSlotNumber GetFirstSlotNumber () const { return 1; }
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virtual VolumeSlotNumber GetLastSlotNumber () const { return 64; }
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virtual HostDeviceList GetHostDevices (bool pathListOnly = false) const = 0;
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virtual FilePath GetApplicationExecutablePath () const { return ApplicationExecutablePath; }
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virtual uint64 GetMaxHiddenVolumeSize (shared_ptr <Volume> outerVolume) const;
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virtual int GetOSMajorVersion () const = 0;
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virtual int GetOSMinorVersion () const = 0;
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virtual shared_ptr <VolumeInfo> GetMountedVolume (const VolumePath &volumePath) const;
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virtual shared_ptr <VolumeInfo> GetMountedVolume (VolumeSlotNumber slot) const;
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virtual VolumeInfoList GetMountedVolumes (const VolumePath &volumePath = VolumePath()) const = 0;
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virtual bool HasAdminPrivileges () const = 0;
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virtual void Init () { }
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virtual bool IsDeviceChangeInProgress () const { return DeviceChangeInProgress; }
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virtual bool IsDevicePresent (const DevicePath &device) const = 0;
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virtual bool IsInPortableMode () const = 0;
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virtual bool IsMountPointAvailable (const DirectoryPath &mountPoint) const = 0;
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virtual bool IsOSVersion (int major, int minor) const = 0;
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virtual bool IsOSVersionLower (int major, int minor) const = 0;
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virtual bool IsPasswordCacheEmpty () const = 0;
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virtual bool IsSlotNumberAvailable (VolumeSlotNumber slotNumber) const;
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virtual bool IsSlotNumberValid (VolumeSlotNumber slotNumber) const { return slotNumber >= GetFirstSlotNumber() && slotNumber <= GetLastSlotNumber(); }
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virtual bool IsVolumeMounted (const VolumePath &volumePath) const;
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virtual VolumeSlotNumber MountPointToSlotNumber (const DirectoryPath &mountPoint) const = 0;
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virtual shared_ptr <VolumeInfo> MountVolume (MountOptions &options) = 0;
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virtual shared_ptr <Volume> OpenVolume (shared_ptr <VolumePath> volumePath, bool preserveTimestamps, shared_ptr <VolumePassword> password, int pim, shared_ptr<Pkcs5Kdf> Kdf, shared_ptr <KeyfileList> keyfiles, bool emvSupportEnabled, VolumeProtection::Enum protection = VolumeProtection::None, shared_ptr <VolumePassword> protectionPassword = shared_ptr <VolumePassword> (), int protectionPim = 0, shared_ptr<Pkcs5Kdf> protectionKdf = shared_ptr<Pkcs5Kdf> (), shared_ptr <KeyfileList> protectionKeyfiles = shared_ptr <KeyfileList> (), bool sharedAccessAllowed = false, VolumeType::Enum volumeType = VolumeType::Unknown, bool useBackupHeaders = false, bool partitionInSystemEncryptionScope = false) const;
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virtual void RandomizeEncryptionAlgorithmKey (shared_ptr <EncryptionAlgorithm> encryptionAlgorithm) const;
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virtual void ReEncryptVolumeHeaderWithNewSalt (const BufferPtr &newHeaderBuffer, shared_ptr <VolumeHeader> header, shared_ptr <VolumePassword> password, int pim, shared_ptr <KeyfileList> keyfiles, bool emvSupportEnabled) const;
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virtual void SetAdminPasswordCallback (shared_ptr <GetStringFunctor> functor) { }
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virtual void SetApplicationExecutablePath (const FilePath &path) { ApplicationExecutablePath = path; }
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virtual void SetFileOwner (const FilesystemPath &path, const UserId &owner) const = 0;
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virtual DirectoryPath SlotNumberToMountPoint (VolumeSlotNumber slotNumber) const = 0;
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virtual void WipePasswordCache () const = 0;
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virtual void ForceUseDummySudoPassword (bool useDummySudoPassword) { UseDummySudoPassword = useDummySudoPassword;}
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virtual bool GetUseDummySudoPassword () const { return UseDummySudoPassword;}
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#if defined(TC_UNIX)
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virtual bool IsProtectedSystemDirectory (const DirectoryPath &directory) const = 0;
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virtual bool IsDirectoryOnUserPath(const DirectoryPath &directory) const = 0;
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virtual void SetAllowInsecureMount (bool allowInsecureMount) { AllowInsecureMount = allowInsecureMount; }
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virtual bool GetAllowInsecureMount () const { return AllowInsecureMount; }
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#endif
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virtual void SetUserEnvPATH (const string &path) { UserEnvPATH = path; }
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virtual string GetUserEnvPATH () const { return UserEnvPATH; }
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Event VolumeDismountedEvent;
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Event VolumeMountedEvent;
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Event WarningEvent;
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protected:
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CoreBase ();
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bool DeviceChangeInProgress;
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FilePath ApplicationExecutablePath;
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string UserEnvPATH;
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bool UseDummySudoPassword;
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#if defined(TC_UNIX)
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bool AllowInsecureMount;
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#endif
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private:
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CoreBase (const CoreBase &);
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CoreBase &operator= (const CoreBase &);
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};
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struct VolumeEventArgs : EventArgs
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{
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VolumeEventArgs (shared_ptr <VolumeInfo> volume) : mVolume (volume) { }
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shared_ptr <VolumeInfo> mVolume;
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};
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}
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#endif // TC_HEADER_Core_CoreBase
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