VeraCrypt/src/Core/MountOptions.cpp

/*
 Copyright (c) 2008 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 "MountOptions.h"
#include "Platform/MemoryStream.h"
#include "Platform/SerializerFactory.h"

namespace VeraCrypt
{
	void MountOptions::CopyFrom (const MountOptions &other)
	{
#define TC_CLONE(NAME) NAME = other.NAME
#define TC_CLONE_SHARED(TYPE,NAME) NAME = other.NAME ? make_shared <TYPE> (*other.NAME) : shared_ptr <TYPE> ()

		TC_CLONE (CachePassword);
		TC_CLONE (FilesystemOptions);
		TC_CLONE (FilesystemType);
		TC_CLONE_SHARED (KeyfileList, Keyfiles);
		TC_CLONE_SHARED (DirectoryPath, MountPoint);
		TC_CLONE (NoFilesystem);
		TC_CLONE (NoHardwareCrypto);
		TC_CLONE (NoKernelCrypto);
		TC_CLONE_SHARED (VolumePassword, Password);
		if (other.Kdf)
		{
			Kdf.reset(other.Kdf->Clone());
		}
		else
			Kdf.reset();
		TC_CLONE_SHARED (VolumePath, Path);
		TC_CLONE (PartitionInSystemEncryptionScope);
		TC_CLONE (PreserveTimestamps);
		TC_CLONE (Protection);
		TC_CLONE_SHARED (VolumePassword, ProtectionPassword);
		if (other.ProtectionKdf)
			ProtectionKdf.reset(other.ProtectionKdf->Clone());
		else
			ProtectionKdf.reset();
		TC_CLONE_SHARED (KeyfileList, ProtectionKeyfiles);
		TC_CLONE (Removable);
		TC_CLONE (SharedAccessAllowed);
		TC_CLONE (SlotNumber);
		TC_CLONE (UseBackupHeaders);
	}

	void MountOptions::Deserialize (shared_ptr <Stream> stream)
	{
		Serializer sr (stream);
		wstring nameValue;

		sr.Deserialize ("CachePassword", CachePassword);
		sr.Deserialize ("FilesystemOptions", FilesystemOptions);
		sr.Deserialize ("FilesystemType", FilesystemType);

		Keyfiles = Keyfile::DeserializeList (stream, "Keyfiles");

		if (!sr.DeserializeBool ("MountPointNull"))
			MountPoint.reset (new DirectoryPath (sr.DeserializeWString ("MountPoint")));
		else
			MountPoint.reset();

		sr.Deserialize ("NoFilesystem", NoFilesystem);
		sr.Deserialize ("NoHardwareCrypto", NoHardwareCrypto);
		sr.Deserialize ("NoKernelCrypto", NoKernelCrypto);

		if (!sr.DeserializeBool ("PasswordNull"))
			Password = Serializable::DeserializeNew <VolumePassword> (stream);
		else
			Password.reset();
			
		if (!sr.DeserializeBool ("KdfNull"))
		{
			sr.Deserialize ("Kdf", nameValue);
			Kdf = Pkcs5Kdf::GetAlgorithm (nameValue);
		}
		else
			Kdf.reset();

		if (!sr.DeserializeBool ("PathNull"))
			Path.reset (new VolumePath (sr.DeserializeWString ("Path")));
		else
			Path.reset();

		sr.Deserialize ("PartitionInSystemEncryptionScope", PartitionInSystemEncryptionScope);
		sr.Deserialize ("PreserveTimestamps", PreserveTimestamps);

		Protection = static_cast <VolumeProtection::Enum> (sr.DeserializeInt32 ("Protection"));

		if (!sr.DeserializeBool ("ProtectionPasswordNull"))
			ProtectionPassword = Serializable::DeserializeNew <VolumePassword> (stream);
		else
			ProtectionPassword.reset();

		if (!sr.DeserializeBool ("ProtectionKdfNull"))
		{
			sr.Deserialize ("ProtectionKdf", nameValue);
			ProtectionKdf = Pkcs5Kdf::GetAlgorithm (nameValue);
		}
		else
			ProtectionKdf.reset();

		ProtectionKeyfiles = Keyfile::DeserializeList (stream, "ProtectionKeyfiles");
		sr.Deserialize ("Removable", Removable);
		sr.Deserialize ("SharedAccessAllowed", SharedAccessAllowed);
		sr.Deserialize ("SlotNumber", SlotNumber);
		sr.Deserialize ("UseBackupHeaders", UseBackupHeaders);
	}

	void MountOptions::Serialize (shared_ptr <Stream> stream) const
	{
		Serializable::Serialize (stream);
		Serializer sr (stream);

		sr.Serialize ("CachePassword", CachePassword);
		sr.Serialize ("FilesystemOptions", FilesystemOptions);
		sr.Serialize ("FilesystemType", FilesystemType);
		Keyfile::SerializeList (stream, "Keyfiles", Keyfiles);

		sr.Serialize ("MountPointNull", MountPoint == nullptr);
		if (MountPoint)
			sr.Serialize ("MountPoint", wstring (*MountPoint));

		sr.Serialize ("NoFilesystem", NoFilesystem);
		sr.Serialize ("NoHardwareCrypto", NoHardwareCrypto);
		sr.Serialize ("NoKernelCrypto", NoKernelCrypto);
		
		sr.Serialize ("PasswordNull", Password == nullptr);
		if (Password)
			Password->Serialize (stream);

		sr.Serialize ("KdfNull", Kdf == nullptr);
		if (Kdf)
			sr.Serialize ("Kdf", Kdf->GetName());

		sr.Serialize ("PathNull", Path == nullptr);
		if (Path)
			sr.Serialize ("Path", wstring (*Path));

		sr.Serialize ("PartitionInSystemEncryptionScope", PartitionInSystemEncryptionScope);
		sr.Serialize ("PreserveTimestamps", PreserveTimestamps);
		sr.Serialize ("Protection", static_cast <uint32> (Protection));

		sr.Serialize ("ProtectionPasswordNull", ProtectionPassword == nullptr);
		if (ProtectionPassword)
			ProtectionPassword->Serialize (stream);

		sr.Serialize ("ProtectionKdfNull", ProtectionKdf == nullptr);
		if (ProtectionKdf)
			sr.Serialize ("ProtectionKdf", ProtectionKdf->GetName());

		Keyfile::SerializeList (stream, "ProtectionKeyfiles", ProtectionKeyfiles);
		sr.Serialize ("Removable", Removable);
		sr.Serialize ("SharedAccessAllowed", SharedAccessAllowed);
		sr.Serialize ("SlotNumber", SlotNumber);
		sr.Serialize ("UseBackupHeaders", UseBackupHeaders);
	}

	TC_SERIALIZER_FACTORY_ADD_CLASS (MountOptions);
}