/* cpu.c - written and placed in the public domain by Wei Dai */ #include "cpu.h" #include "misc.h" #if defined(_MSC_VER) && !defined(_UEFI) #include "rdrand.h" #endif #ifndef EXCEPTION_EXECUTE_HANDLER #define EXCEPTION_EXECUTE_HANDLER 1 #endif #ifndef CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY #include #include #endif #ifdef CRYPTOPP_CPUID_AVAILABLE #if _MSC_VER >= 1400 && CRYPTOPP_BOOL_X64 int CpuId(uint32 input, uint32 output[4]) { __cpuid((int *)output, input); return 1; } #else #ifndef CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY #if defined(__cplusplus) extern "C" { #endif typedef void (*SigHandler)(int); static jmp_buf s_jmpNoCPUID; static void SigIllHandlerCPUID(int p) { longjmp(s_jmpNoCPUID, 1); } #if !defined (_UEFI) && ((defined(__AES__) && defined(__PCLMUL__)) || defined(__INTEL_COMPILER) || CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE) static jmp_buf s_jmpNoAESNI; static void SigIllHandlerAESNI(int p) { longjmp(s_jmpNoAESNI, 1); } #endif #if CRYPTOPP_BOOL_X64 == 0 static jmp_buf s_jmpNoSSE2; static void SigIllHandlerSSE2(int p) { longjmp(s_jmpNoSSE2, 1); } #endif #if defined(__cplusplus) } #endif #endif int CpuId(uint32 input, uint32 output[4]) { #ifdef CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY #ifndef _UEFI __try { #endif __asm { mov eax, input mov ecx, 0 cpuid mov edi, output mov [edi], eax mov [edi+4], ebx mov [edi+8], ecx mov [edi+12], edx } #ifndef _UEFI } __except (EXCEPTION_EXECUTE_HANDLER) { return 0; } #endif // function 0 returns the highest basic function understood in EAX if(input == 0) return !!output[0]? 1 : 0; return 1; #else // longjmp and clobber warnings. Volatile is required. // http://github.com/weidai11/cryptopp/issues/24 // http://stackoverflow.com/q/7721854 volatile int result = 1; SigHandler oldHandler = signal(SIGILL, SigIllHandlerCPUID); if (oldHandler == SIG_ERR) result = 0; if (setjmp(s_jmpNoCPUID)) result = 0; else { asm volatile ( // save ebx in case -fPIC is being used // TODO: this might need an early clobber on EDI. #if CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64 "pushq %%rbx; cpuid; mov %%ebx, %%edi; popq %%rbx" #else "push %%ebx; cpuid; mov %%ebx, %%edi; pop %%ebx" #endif : "=a" (output[0]), "=D" (output[1]), "=c" (output[2]), "=d" (output[3]) : "a" (input), "c" (0) ); } signal(SIGILL, oldHandler); return result; #endif } #endif static int TrySSE2() { #if CRYPTOPP_BOOL_X64 return 1; #elif defined(CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY) && !defined(_UEFI) volatile int result = 1; #if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64) KFLOATING_SAVE floatingPointState; if (NT_SUCCESS (KeSaveFloatingPointState (&floatingPointState))) { #endif __try { #if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE AS2(por xmm0, xmm0) // executing SSE2 instruction #elif CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE __m128i x = _mm_setzero_si128(); result = _mm_cvtsi128_si32(x) == 0 ? 1 : 0; #endif } __except (EXCEPTION_EXECUTE_HANDLER) { result = 0; } #if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64) KeRestoreFloatingPointState (&floatingPointState); } else return 0; #endif return result; #elif !defined(_UEFI) // longjmp and clobber warnings. Volatile is required. // http://github.com/weidai11/cryptopp/issues/24 // http://stackoverflow.com/q/7721854 volatile int result = 1; SigHandler oldHandler = signal(SIGILL, SigIllHandlerSSE2); if (oldHandler == SIG_ERR) return 0; if (setjmp(s_jmpNoSSE2)) result = 1; else { #if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE __asm __volatile ("por %xmm0, %xmm0"); #elif CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE __m128i x = _mm_setzero_si128(); result = _mm_cvtsi128_si32(x) == 0? 1 : 0; #endif } signal(SIGILL, oldHandler); return result; #else return 1; #endif } static uint64 xgetbv() { #if defined(_MSC_VER) && defined(_XCR_XFEATURE_ENABLED_MASK) && !defined(_UEFI) return _xgetbv(_XCR_XFEATURE_ENABLED_MASK); #elif defined(__GNUC__) || defined(__clang__) uint32 eax, edx; __asm__ __volatile__(".byte 0x0F, 0x01, 0xd0" : "=a"(eax), "=d"(edx) : "c"(0)); return ((uint64_t)edx << 32) | eax; #else return 0; #endif } volatile int g_x86DetectionDone = 0; volatile int g_hasISSE = 0, g_hasSSE2 = 0, g_hasSSSE3 = 0, g_hasMMX = 0, g_hasAESNI = 0, g_hasCLMUL = 0, g_isP4 = 0; volatile int g_hasAVX = 0, g_hasAVX2 = 0, g_hasBMI2 = 0, g_hasSSE42 = 0, g_hasSSE41 = 0, g_isIntel = 0, g_isAMD = 0; volatile int g_hasRDRAND = 0, g_hasRDSEED = 0; volatile uint32 g_cacheLineSize = CRYPTOPP_L1_CACHE_LINE_SIZE; VC_INLINE int IsIntel(const uint32 output[4]) { // This is the "GenuineIntel" string return (output[1] /*EBX*/ == 0x756e6547) && (output[2] /*ECX*/ == 0x6c65746e) && (output[3] /*EDX*/ == 0x49656e69); } VC_INLINE int IsAMD(const uint32 output[4]) { // This is the "AuthenticAMD" string return (output[1] /*EBX*/ == 0x68747541) && (output[2] /*ECX*/ == 0x444D4163) && (output[3] /*EDX*/ == 0x69746E65); } VC_INLINE int IsHygon(const uint32 output[4]) { // This is the "HygonGenuine" string. return (output[1] /*EBX*/ == 0x6f677948) && (output[2] /*ECX*/ == 0x656e6975) && (output[3] /*EDX*/ == 0x6e65476e); } #if !defined (_UEFI) && ((defined(__AES__) && defined(__PCLMUL__)) || 
/*
 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) 2013-2017 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_Main_FavoriteVolume
#define TC_HEADER_Main_FavoriteVolume

#include "System.h"
#include "Main.h"

namespace VeraCrypt
{
	struct FavoriteVolume;
	typedef list < shared_ptr <FavoriteVolume> > FavoriteVolumeList;

	struct FavoriteVolume
	{
	public:
		FavoriteVolume ()
			: ReadOnly (false),
			System (false)
		{
		}

		FavoriteVolume (const VolumePath &path, const DirectoryPath &mountPoint, VolumeSlotNumber slotNumber, bool readOnly, bool system)
			: MountPoint (mountPoint),
			Path (path),
			ReadOnly (readOnly),
			SlotNumber (slotNumber),
			System (system)
		{
		}

		static FavoriteVolumeList LoadList ();
		static void SaveList (const FavoriteVolumeList &favorites);
		void ToMountOptions (MountOptions &options) const;

		DirectoryPath MountPoint;
		VolumePath Path;
		bool ReadOnly;
		VolumeSlotNumber SlotNumber;
		bool System;

	protected:
		static wxString GetFileName () { return L"Favorite Volumes.xml"; }
	};
}

#endif // TC_HEADER_Main_FavoriteVolume