VeraCrypt
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path: root/src/Core/VolumeCreator.h
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/*
 Derived from source code of TrueCrypt 7.1a, which is
 Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed
 by the TrueCrypt License 3.0.

 Modifications and additions to the original source code (contained in this file)
 and all other portions of this file are Copyright (c) 2013-2016 IDRIX
 and are governed by the Apache License 2.0 the full text of which is
 contained in the file License.txt included in VeraCrypt binary and source
 code distribution packages.
*/

#ifndef TC_HEADER_Volume_VolumeCreator
#define TC_HEADER_Volume_VolumeCreator

#include "Platform/Platform.h"
#include "Volume/Volume.h"
#include "RandomNumberGenerator.h"

namespace VeraCrypt
{

	struct VolumeCreationOptions
	{
		VolumePath Path;
		VolumeType::Enum Type;
		uint64 Size;
		shared_ptr <VolumePassword> Password;
		int Pim;
		shared_ptr <KeyfileList> Keyfiles;
		shared_ptr <Pkcs5Kdf> VolumeHeaderKdf;
		shared_ptr <EncryptionAlgorithm> EA;
		bool Quick;

		struct FilesystemType
		{
			enum Enum
			{
				Unknown = 0,
				None,
				FAT,
				exFAT,
				NTFS,
				Ext2,
				Ext3,
				Ext4,
				MacOsExt,
				UFS
			};

			static Enum GetPlatformNative ()
			{
#ifdef TC_WINDOWS
				return VolumeCreationOptions::FilesystemType::NTFS;
#elif defined (TC_LINUX)
				return VolumeCreationOptions::FilesystemType::Ext3;
#elif defined (TC_MACOSX)
				return VolumeCreationOptions::FilesystemType::MacOsExt;
#elif defined (TC_FREEBSD) || defined (TC_SOLARIS)
				return VolumeCreationOptions::FilesystemType::UFS;
#else
				return VolumeCreationOptions::FilesystemType::FAT;
#endif
			}
		};

		FilesystemType::Enum Filesystem;
		uint32 FilesystemClusterSize;
		uint32 SectorSize;
	};

	class VolumeCreator
	{
	public:

		struct ProgressInfo
		{
			bool CreationInProgress;
			uint64 TotalSize;
			uint64 SizeDone;
		};

		struct KeyInfo
		{
			ConstBufferPtr HeaderKey;
			ConstBufferPtr MasterKey;
		};

		VolumeCreator ();
		virtual ~VolumeCreator ();

		void Abort ();
		void CheckResult ();
		void CreateVolume (shared_ptr <VolumeCreationOptions> options);
		KeyInfo GetKeyInfo () const;
		ProgressInfo GetProgressInfo ();

	protected:
		void CreationThread ();

		volatile bool AbortRequested;
		volatile bool CreationInProgress;
		uint64 DataStart;
		uint64 HostSize;
		shared_ptr <VolumeCreationOptions> Options;
		shared_ptr <Exception> ThreadException;
		uint64 VolumeSize;

		shared_ptr <VolumeLayout> Layout;
		shared_ptr <File> VolumeFile;
		SharedVal <uint64> SizeDone;
		uint64 WriteOffset;
		ProgressInfo mProgressInfo;

		SecureBuffer HeaderKey;
		shared_ptr <VolumePassword> PasswordKey;
		SecureBuffer MasterKey;

	private:
		VolumeCreator (const VolumeCreator &);
		VolumeCreator &operator= (const VolumeCreator &);
	};
}

#endif // TC_HEADER_Volume_VolumeCreator
wstringstream vars; vars << L"cpus=" << wxThread::GetCPUCount(); vars << L"&cksum=" << hex << FatalErrorHandler::GetAppChecksum() << dec; vars << L"&err=" << signalInfo->si_signo; vars << L"&addr=" << hex << faultingInstructionAddress << dec; vars << FatalErrorHandler::GetCallStack (16); wxString url = Gui->GetHomepageLinkURL (L"err-report", true, vars.str()); url.Replace (L"=0x", L"="); url.Replace (L"=0X0x", L"=0x"); url.Replace (L"=0X", L"=0x"); wxString msg = L"A critical error has occurred and VeraCrypt must be terminated. If this is caused by a bug in VeraCrypt, we would like to fix it. To help us, you can send us an automatically generated error report containing the following items:\n\n- Program version\n- Operating system version\n- Hardware architecture\n- Checksum of VeraCrypt executable\n- Error category\n- Error address\n"; #if wxUSE_STACKWALKER == 1 msg += L"- VeraCrypt call stack\n"; #endif msg += L"\nIf you select 'Yes', the following URL (which contains the entire error report) will be opened in your default Internet browser.\n\n"; #ifdef __WXGTK__ wxString fUrl = url; fUrl.Replace (L"&st", L" &st"); msg += fUrl; #else msg += url; #endif msg += L"\n\nDo you want to send us the error report?"; if (Gui->AskYesNo (msg, true)) wxLaunchDefaultBrowser (url, wxBROWSER_NEW_WINDOW); _exit (1); } #endif // TC_UNIX void FatalErrorHandler::Deregister() { #ifdef TC_UNIX signal (SIGILL, SIG_DFL); signal (SIGFPE, SIG_DFL); signal (SIGSEGV, SIG_DFL); signal (SIGBUS, SIG_DFL); signal (SIGSYS, SIG_DFL); #endif #ifndef TC_WINDOWS std::set_terminate (DefaultTerminateHandler); #endif } uint32 FatalErrorHandler::GetAppChecksum () { uint32 checkSum = 0; try { File executable; executable.Open (Application::GetExecutablePath()); Buffer executableData (executable.Length()); executable.ReadCompleteBuffer (executableData); checkSum = Crc32::ProcessBuffer (executableData); } catch (...) { } return checkSum; } wstring FatalErrorHandler::GetCallStack (int depth) { #if wxUSE_STACKWALKER == 1 class StackWalker : public wxStackWalker { public: StackWalker () : FrameCount (0) { } void OnStackFrame (const wxStackFrame &frame) { if (FrameCount >= 32) return; StackVars << L"&st" << FrameCount++ << L"="; wxString functionName = frame.GetName(); if (!functionName.empty() && !frame.GetModule().empty()) { int p = functionName.Find (L"("); if (p != wxNOT_FOUND) functionName = functionName.Mid (0, p); for (size_t i = 0; i < functionName.size(); ++i) { if (!isalnum (functionName[i])) functionName[i] = L'_'; } while (functionName.Replace (L"__", L"_")); StackVars << wstring (functionName); } else StackVars << "0X" << hex << frame.GetAddress() << dec; } int FrameCount; wstringstream StackVars; }; StackWalker stackWalker; stackWalker.Walk (2); return stackWalker.StackVars.str(); #else // wxUSE_STACKWALKER return wstring(); #endif // wxUSE_STACKWALKER } void FatalErrorHandler::OnTerminate () { try { throw; } catch (UserAbort&) { } catch (Exception &e) { wxString vars; wxString exName = StringConverter::ToWide (StringConverter::GetTypeName (typeid (e))); if (exName.find (L"VeraCrypt::") != string::npos) exName = exName.Mid (11); wxString exPos = StringConverter::ToWide (e.what()); if (exPos.find (L"VeraCrypt::") != string::npos) exPos = exPos.Mid (11); vars << L"cpus=" << wxThread::GetCPUCount(); vars << wxString::Format (L"&cksum=%x", GetAppChecksum()); vars << L"&exception=" << exName; vars << L"&exlocation=" << exPos; vars << FatalErrorHandler::GetCallStack (16); vars.Replace (L"::", L"."); vars.Replace (L":", L"."); wxString url = Gui->GetHomepageLinkURL (L"err-report", true, vars); url.Replace (L"=0x", L"="); url.Replace (L"=0X0x", L"=0x"); url.Replace (L"=0X", L"=0x"); wxString msg = L"An unhandled exception has occurred and VeraCrypt must be terminated. If this is caused by a bug in VeraCrypt, we would like to fix it. To help us, you can send us an automatically generated error report containing the following items:\n\n- Program version\n- Operating system version\n- Hardware architecture\n- Checksum of VeraCrypt executable\n- Error description\n- Error location\n"; #if wxUSE_STACKWALKER == 1 msg += L"- VeraCrypt call stack\n"; #endif msg += L"\nIf you select 'Yes', the following URL (which contains the entire error report) will be opened in your default Internet browser.\n\n"; #ifdef __WXGTK__ wxString fUrl = url; fUrl.Replace (L"&st", L" &st"); msg += fUrl; #else msg += url; #endif msg += L"\n\nDo you want to send us the error report?"; if (Gui->AskYesNo (msg, true)) wxLaunchDefaultBrowser (url, wxBROWSER_NEW_WINDOW); } catch (exception &e) { Gui->ShowError (e); } catch (...) { Gui->ShowError (_("Unknown exception occurred.")); } _exit (1); } void FatalErrorHandler::Register () { #ifndef TC_WINDOWS // OnUnhandledException() seems to be called only on Windows DefaultTerminateHandler = std::set_terminate (OnTerminate); #endif #ifdef TC_UNIX struct sigaction action; Memory::Zero (&action, sizeof (action)); action.sa_flags = SA_SIGINFO; action.sa_sigaction = OnFatalProgramErrorSignal; throw_sys_if (sigaction (SIGILL, &action, nullptr) == -1); throw_sys_if (sigaction (SIGFPE, &action, nullptr) == -1); throw_sys_if (sigaction (SIGSEGV, &action, nullptr) == -1); throw_sys_if (sigaction (SIGBUS, &action, nullptr) == -1); throw_sys_if (sigaction (SIGSYS, &action, nullptr) == -1); #endif } }