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Code Activity

Windows: Add option to enable use of CPU RDRAND/RDSEED as source of entropy which is now disabled by default

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This commit is contained in:
Mounir IDRASSI
2019-02-07 15:24:56 +01:00
parent 6bb1f24ed5
commit e5b9cee868
48 changed files with 108 additions and 15 deletions
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16
src/Mount/Mount.c
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@@ -820,7 +820,10 @@ void LoadSettingsAndCheckModified (HWND hwndDlg, BOOL bOnlyCheckModified, BOOL*
{
char langid[6] = {0};
if (!bOnlyCheckModified)
{
EnableHwEncryption ((ReadDriverConfigurationFlags() & TC_DRIVER_CONFIG_DISABLE_HARDWARE_ENCRYPTION) ? FALSE : TRUE);
EnableCpuRng ((ReadDriverConfigurationFlags() & VC_DRIVER_CONFIG_ENABLE_CPU_RNG) ? TRUE : FALSE);
}
WipeAlgorithmId savedWipeAlgorithm = TC_WIPE_NONE;
@@ -11099,6 +11102,16 @@ static BOOL CALLBACK PerformanceSettingsDlgProc (HWND hwndDlg, UINT msg, WPARAM
EnableWindow (GetDlgItem (hwndDlg, IDC_ALLOW_WINDOWS_DEFRAG), FALSE);
}
if (HasRDRAND() || HasRDSEED())
{
CheckDlgButton (hwndDlg, IDC_ENABLE_CPU_RNG, (driverConfig & VC_DRIVER_CONFIG_ENABLE_CPU_RNG) ? BST_CHECKED : BST_UNCHECKED);
}
else
{
CheckDlgButton (hwndDlg, IDC_ENABLE_CPU_RNG, BST_UNCHECKED);
EnableWindow (GetDlgItem (hwndDlg, IDC_ENABLE_CPU_RNG), FALSE);
}
SYSTEM_INFO sysInfo;
GetSystemInfo (&sysInfo);
@@ -11154,6 +11167,7 @@ static BOOL CALLBACK PerformanceSettingsDlgProc (HWND hwndDlg, UINT msg, WPARAM
}
BOOL disableHW = !IsDlgButtonChecked (hwndDlg, IDC_ENABLE_HARDWARE_ENCRYPTION);
BOOL enableCpuRng = IsDlgButtonChecked (hwndDlg, IDC_ENABLE_CPU_RNG);
BOOL enableExtendedIOCTL = IsDlgButtonChecked (hwndDlg, IDC_ENABLE_EXTENDED_IOCTL_SUPPORT);
BOOL allowTrimCommand = IsDlgButtonChecked (hwndDlg, IDC_ALLOW_TRIM_NONSYS_SSD);
BOOL allowWindowsDefrag = IsDlgButtonChecked (hwndDlg, IDC_ALLOW_WINDOWS_DEFRAG);
@@ -11196,12 +11210,14 @@ static BOOL CALLBACK PerformanceSettingsDlgProc (HWND hwndDlg, UINT msg, WPARAM
SetDriverConfigurationFlag (VC_DRIVER_CONFIG_ALLOW_NONSYS_TRIM, allowTrimCommand);
if (IsOSAtLeast (WIN_8_1))
SetDriverConfigurationFlag (VC_DRIVER_CONFIG_ALLOW_WINDOWS_DEFRAG, allowWindowsDefrag);
SetDriverConfigurationFlag (VC_DRIVER_CONFIG_ENABLE_CPU_RNG, enableCpuRng);
DWORD bytesReturned;
if (!DeviceIoControl (hDriver, TC_IOCTL_REREAD_DRIVER_CONFIG, NULL, 0, NULL, 0, &bytesReturned, NULL))
handleWin32Error (hwndDlg, SRC_POS);
EnableHwEncryption (!disableHW);
EnableCpuRng (enableCpuRng);
uint32 cpuFreeCount = 0;
if (IsDlgButtonChecked (hwndDlg, IDC_LIMIT_ENC_THREAD_POOL))