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Windows: Add option to avoid PIM prompt in pre-boot authentication by storing PIM value unencrypted in MBR.

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This commit is contained in:
Mounir IDRASSI 2016-04-20 00:30:28 +02:00
parent bd9105794b
commit 1396269d57
14 changed files with 186 additions and 90 deletions
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2
src/Boot/Windows/BootCommon.h
View File

@ -17,7 +17,7 @@
#include "BootDefs.h"
// The user will be advised to upgrade the rescue disk if upgrading from the following or any previous version
#define TC_RESCUE_DISK_UPGRADE_NOTICE_MAX_VERSION 0x0116
#define TC_RESCUE_DISK_UPGRADE_NOTICE_MAX_VERSION 0x0117
#define TC_BOOT_LOADER_AREA_SIZE (TC_BOOT_LOADER_AREA_SECTOR_COUNT * TC_SECTOR_SIZE_BIOS)

10
src/Boot/Windows/BootConfig.cpp
View File

@ -32,7 +32,7 @@ Partition EncryptedVirtualPartition;
Partition ActivePartition;
Partition PartitionFollowingActive;
bool ExtraBootPartitionPresent = false;
uint64 HiddenVolumeStartUnitNo;
uint64 PimValueOrHiddenVolumeStartUnitNo; // reuse this variable for stored PIM value to reduce memory usage
uint64 HiddenVolumeStartSector;
#ifndef TC_WINDOWS_BOOT_RESCUE_DISK_MODE
@ -68,6 +68,14 @@ void ReadBootSectorUserConfiguration ()
DisableScreenOutput();
}
if (userConfig & TC_BOOT_USER_CFG_FLAG_DISABLE_PIM)
{
PimValueOrHiddenVolumeStartUnitNo.LowPart = 0;
memcpy (&PimValueOrHiddenVolumeStartUnitNo.LowPart, SectorBuffer + TC_BOOT_SECTOR_PIM_VALUE_OFFSET, TC_BOOT_SECTOR_PIM_VALUE_SIZE);
}
else
PimValueOrHiddenVolumeStartUnitNo.LowPart = -1;
OuterVolumeBackupHeaderCrc = *(uint32 *) (SectorBuffer + TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_OFFSET);
ret:

2
src/Boot/Windows/BootConfig.h
View File

@ -36,7 +36,7 @@ extern Partition EncryptedVirtualPartition;
extern Partition ActivePartition;
extern Partition PartitionFollowingActive;
extern bool ExtraBootPartitionPresent;
extern uint64 HiddenVolumeStartUnitNo;
extern uint64 PimValueOrHiddenVolumeStartUnitNo; // reuse this variable for stored PIM value to reduce memory usage
extern uint64 HiddenVolumeStartSector;

7
src/Boot/Windows/BootDefs.h
View File

@ -74,6 +74,9 @@
#define TC__BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_SIZE 4
#define TC__BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_OFFSET (TC__BOOT_SECTOR_USER_MESSAGE_OFFSET - TC__BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_SIZE)
#define TC__BOOT_SECTOR_PIM_VALUE_SIZE 2
#define TC__BOOT_SECTOR_PIM_VALUE_OFFSET (TC__BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_OFFSET - TC__BOOT_SECTOR_PIM_VALUE_SIZE)
#define TC__BOOT_LOADER_DECOMPRESSOR_START_SECTOR 2
#define TC__BOOT_LOADER_DECOMPRESSOR_SECTOR_COUNT 4
#define TC__BOOT_LOADER_DECOMPRESSOR_MEMORY_SIZE 32768
@ -100,6 +103,7 @@
#define TC__BOOT_USER_CFG_FLAG_SILENT_MODE TC_HEX (01)
#define TC__BOOT_USER_CFG_FLAG_DISABLE_ESC TC_HEX (02)
#define TC__BOOT_USER_CFG_FLAG_DISABLE_HW_ENCRYPTION TC_HEX (04)
#define TC__BOOT_USER_CFG_FLAG_DISABLE_PIM TC_HEX (08)
// The following items are treated as a 2-bit value (apply TC_BOOT_CFG_MASK_HIDDEN_OS_CREATION_PHASE to obtain the value)
#define TC__HIDDEN_OS_CREATION_PHASE_NONE 0
@ -163,6 +167,8 @@ TC_HIDDEN_OS_CREATION_PHASE_WIPED = TC__HIDDEN_OS_CREATION_PHASE_WIPED
#define TC_BOOT_SECTOR_USER_MESSAGE_OFFSET TC__BOOT_SECTOR_USER_MESSAGE_OFFSET
#define TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_SIZE TC__BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_SIZE
#define TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_OFFSET TC__BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_OFFSET
#define TC_BOOT_SECTOR_PIM_VALUE_SIZE TC__BOOT_SECTOR_PIM_VALUE_SIZE
#define TC_BOOT_SECTOR_PIM_VALUE_OFFSET TC__BOOT_SECTOR_PIM_VALUE_OFFSET
#define TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH TC__BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH
#define TC_BOOT_SECTOR_VERSION_OFFSET TC__BOOT_SECTOR_VERSION_OFFSET
#define TC_BOOT_SECTOR_LOADER_LENGTH_OFFSET TC__BOOT_SECTOR_LOADER_LENGTH_OFFSET
@ -186,6 +192,7 @@ TC_HIDDEN_OS_CREATION_PHASE_WIPED = TC__HIDDEN_OS_CREATION_PHASE_WIPED
#define TC_BOOT_USER_CFG_FLAG_SILENT_MODE TC__BOOT_USER_CFG_FLAG_SILENT_MODE
#define TC_BOOT_USER_CFG_FLAG_DISABLE_ESC TC__BOOT_USER_CFG_FLAG_DISABLE_ESC
#define TC_BOOT_USER_CFG_FLAG_DISABLE_HW_ENCRYPTION TC__BOOT_USER_CFG_FLAG_DISABLE_HW_ENCRYPTION
#define TC_BOOT_USER_CFG_FLAG_DISABLE_PIM TC__BOOT_USER_CFG_FLAG_DISABLE_PIM
#define TC_HIDDEN_OS_CREATION_PHASE_NONE TC__HIDDEN_OS_CREATION_PHASE_NONE
#define TC_HIDDEN_OS_CREATION_PHASE_CLONING TC__HIDDEN_OS_CREATION_PHASE_CLONING
#define TC_HIDDEN_OS_CREATION_PHASE_WIPING TC__HIDDEN_OS_CREATION_PHASE_WIPING

4
src/Boot/Windows/BootEncryptedIo.cpp
View File

@ -48,7 +48,7 @@ BiosResult ReadEncryptedSectors (uint16 destSegment, uint16 destOffset, byte dri
{
// Convert sector number to data unit number of the hidden volume
sector -= HiddenVolumeStartSector;
sector += HiddenVolumeStartUnitNo;
sector += PimValueOrHiddenVolumeStartUnitNo;
}
if (drive == EncryptedVirtualPartition.Drive)
@ -96,7 +96,7 @@ BiosResult WriteEncryptedSectors (uint16 sourceSegment, uint16 sourceOffset, byt
writeOffset = HiddenVolumeStartSector;
writeOffset -= EncryptedVirtualPartition.StartSector;
dataUnitNo -= EncryptedVirtualPartition.StartSector;
dataUnitNo += HiddenVolumeStartUnitNo;
dataUnitNo += PimValueOrHiddenVolumeStartUnitNo;
}
while (sectorCount-- > 0)

16
src/Boot/Windows/BootMain.cpp
View File

@ -231,6 +231,17 @@ static byte AskPassword (Password &password, int& pim)
PrintCharAtCursor (asciiCode);
}
#ifndef TC_WINDOWS_BOOT_RESCUE_DISK_MODE
if (PimValueOrHiddenVolumeStartUnitNo.LowPart != -1)
{
pim = (int) PimValueOrHiddenVolumeStartUnitNo.LowPart;
// reset stored PIM value to allow requesting PIM next time in case the stored value is wrong
PimValueOrHiddenVolumeStartUnitNo.LowPart = -1;
return TC_BIOS_KEY_ENTER;
}
else
#endif
{
pos = 0;
Print ("PIM: ");
@ -297,6 +308,7 @@ static byte AskPassword (Password &password, int& pim)
else
PrintCharAtCursor (asciiCode);
}
}
}
@ -468,7 +480,7 @@ static bool MountVolume (byte drive, byte &exitKey, bool skipNormal, bool skipHi
EncryptedVirtualPartition.StartSector = BootCryptoInfo->EncryptedAreaStart >> TC_LB_SIZE_BIT_SHIFT_DIVISOR;
HiddenVolumeStartUnitNo = EncryptedVirtualPartition.StartSector;
PimValueOrHiddenVolumeStartUnitNo = EncryptedVirtualPartition.StartSector;
HiddenVolumeStartSector = PartitionFollowingActive.StartSector;
HiddenVolumeStartSector += EncryptedVirtualPartition.StartSector;
@ -749,7 +761,7 @@ static bool CopySystemPartitionToHiddenVolume (byte drive, byte &exitKey)
{
CopyMemory (TC_BOOT_LOADER_BUFFER_SEGMENT, i * TC_LB_SIZE, SectorBuffer, TC_LB_SIZE);
uint64 s = HiddenVolumeStartUnitNo + sectorOffset + i;
uint64 s = PimValueOrHiddenVolumeStartUnitNo + sectorOffset + i;
EncryptDataUnits (SectorBuffer, &s, 1, BootCryptoInfo);
CopyMemory (SectorBuffer, TC_BOOT_LOADER_BUFFER_SEGMENT, i * TC_LB_SIZE, TC_LB_SIZE);

44
src/Common/BootEncryption.cpp
View File

@ -1300,7 +1300,7 @@ namespace VeraCrypt
}
void BootEncryption::WriteBootSectorUserConfig (byte userConfig, const string &customUserMessage)
void BootEncryption::WriteBootSectorUserConfig (byte userConfig, const string &customUserMessage, int pim)
{
Device device (GetSystemDriveConfiguration().DevicePath);
device.CheckOpened (SRC_POS);
@ -1327,6 +1327,15 @@ namespace VeraCrypt
memcpy (mbr + TC_BOOT_SECTOR_USER_MESSAGE_OFFSET, customUserMessage.c_str(), customUserMessage.size());
}
if (userConfig & TC_BOOT_USER_CFG_FLAG_DISABLE_PIM)
{
// PIM for pre-boot authentication can be encoded on two bytes since its maximum
// value is 65535 (0xFFFF)
memcpy (mbr + TC_BOOT_SECTOR_PIM_VALUE_OFFSET, &pim, TC_BOOT_SECTOR_PIM_VALUE_SIZE);
}
else
memset (mbr + TC_BOOT_SECTOR_PIM_VALUE_OFFSET, 0, TC_BOOT_SECTOR_PIM_VALUE_SIZE);
device.SeekAt (0);
device.Write (mbr, sizeof (mbr));
@ -1494,7 +1503,7 @@ namespace VeraCrypt
InstallBootLoader (device, preserveUserConfig, hiddenOSCreation);
}
void BootEncryption::InstallBootLoader (Device& device, bool preserveUserConfig, bool hiddenOSCreation)
void BootEncryption::InstallBootLoader (Device& device, bool preserveUserConfig, bool hiddenOSCreation, int pim)
{
byte bootLoaderBuf[TC_BOOT_LOADER_AREA_SIZE - TC_BOOT_ENCRYPTION_VOLUME_HEADER_SIZE] = {0};
CreateBootLoaderInMemory (bootLoaderBuf, sizeof (bootLoaderBuf), false, hiddenOSCreation);
@ -1512,6 +1521,16 @@ namespace VeraCrypt
{
bootLoaderBuf[TC_BOOT_SECTOR_USER_CONFIG_OFFSET] = mbr[TC_BOOT_SECTOR_USER_CONFIG_OFFSET];
memcpy (bootLoaderBuf + TC_BOOT_SECTOR_USER_MESSAGE_OFFSET, mbr + TC_BOOT_SECTOR_USER_MESSAGE_OFFSET, TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH);
if (bootLoaderBuf[TC_BOOT_SECTOR_USER_CONFIG_OFFSET] & TC_BOOT_USER_CFG_FLAG_DISABLE_PIM)
{
if (pim >= 0)
{
memcpy (bootLoaderBuf + TC_BOOT_SECTOR_PIM_VALUE_OFFSET, &pim, TC_BOOT_SECTOR_PIM_VALUE_SIZE);
}
else
memcpy (bootLoaderBuf + TC_BOOT_SECTOR_PIM_VALUE_OFFSET, mbr + TC_BOOT_SECTOR_PIM_VALUE_OFFSET, TC_BOOT_SECTOR_PIM_VALUE_SIZE);
}
}
}
@ -2499,17 +2518,32 @@ namespace VeraCrypt
if (headerUpdated)
{
bool storedPimUpdateNeeded = false;
ReopenBootVolumeHeaderRequest reopenRequest;
reopenRequest.VolumePassword = *newPassword;
reopenRequest.pkcs5_prf = cryptoInfo->pkcs5;
reopenRequest.pim = pim;
finally_do_arg (ReopenBootVolumeHeaderRequest*, &reopenRequest, { burn (finally_arg, sizeof (*finally_arg)); });
if (old_pim != pim)
{
try
{
// force update of bootloader if fingerprint doesn't match
if (!CheckBootloaderFingerprint (true))
InstallBootLoader (device, true);
// check if PIM is stored in MBR
byte userConfig;
ReadBootSectorConfig (nullptr, 0, &userConfig);
if (userConfig & TC_BOOT_USER_CFG_FLAG_DISABLE_PIM)
storedPimUpdateNeeded = true;
}
catch (...)
{}
}
try
{
// force update of bootloader if fingerprint doesn't match or if the stored PIM changed
if (storedPimUpdateNeeded || !CheckBootloaderFingerprint (true))
InstallBootLoader (device, true, false, pim);
}
catch (...)
{}

4
src/Common/BootEncryption.h
View File

@ -169,7 +169,7 @@ namespace VeraCrypt
void GetVolumeProperties (VOLUME_PROPERTIES_STRUCT *properties);
SystemDriveConfiguration GetSystemDriveConfiguration ();
void Install (bool hiddenSystem);
void InstallBootLoader (Device& device, bool preserveUserConfig = false, bool hiddenOSCreation = false);
void InstallBootLoader (Device& device, bool preserveUserConfig = false, bool hiddenOSCreation = false, int pim = -1);
void InstallBootLoader (bool preserveUserConfig = false, bool hiddenOSCreation = false);
bool CheckBootloaderFingerprint (bool bSilent = false);
void InvalidateCachedSysDriveProperties ();
@ -206,7 +206,7 @@ namespace VeraCrypt
void WipeHiddenOSCreationConfig ();
void WriteBootDriveSector (uint64 offset, byte *data);
void WriteBootSectorConfig (const byte newConfig[]);
void WriteBootSectorUserConfig (byte userConfig, const string &customUserMessage);
void WriteBootSectorUserConfig (byte userConfig, const string &customUserMessage, int pim);
void WriteLocalMachineRegistryDwordValue (wchar_t *keyPath, wchar_t *valueName, DWORD value);
protected:

2
src/Common/Language.xml
View File

@ -1394,6 +1394,8 @@
<string lang="en" key="VOLUME_ID_INVALID">The Volume ID value is invalid</string>
<string lang="en" key="VOLUME_ID_NOT_FOUND">No Volume with the specified ID was found on the system</string>
<string lang="en" key="IDPM_COPY_VALUE_TO_CLIPBOARD">Copy Value to Clipboard...</string>
<control lang="en" key="IDC_DISABLE_BOOT_LOADER_PIM_PROMPT">Do not request PIM in the pre-boot authentication screen (PIM value is stored unencrypted on disk)</control>
<string lang="en" key="DISABLE_BOOT_LOADER_PIM_PROMPT">WARNING: Please keep in mind that if you enable this option, the PIM value will be stored unencrypted on the disk.\n\nAre you sure you want to enable this option?</string>
</localization>
<!-- XML Schema -->
<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">

5
src/Common/Volumes.c
View File

@ -590,6 +590,7 @@ void ComputeBootloaderFingerprint (byte *bootLoaderBuf, unsigned int bootLoaderS
{
// compute Whirlpool+SHA512 fingerprint of bootloader including MBR
// we skip user configuration fields:
// TC_BOOT_SECTOR_PIM_VALUE_OFFSET = 400
// TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_OFFSET = 402
// => TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_SIZE = 4
// TC_BOOT_SECTOR_USER_MESSAGE_OFFSET = 406
@ -604,8 +605,8 @@ void ComputeBootloaderFingerprint (byte *bootLoaderBuf, unsigned int bootLoaderS
WHIRLPOOL_init (&whirlpool);
sha512_begin (&sha2);
WHIRLPOOL_add (bootLoaderBuf, TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_OFFSET * 8, &whirlpool);
sha512_hash (bootLoaderBuf, TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_OFFSET, &sha2);
WHIRLPOOL_add (bootLoaderBuf, TC_BOOT_SECTOR_PIM_VALUE_OFFSET * 8, &whirlpool);
sha512_hash (bootLoaderBuf, TC_BOOT_SECTOR_PIM_VALUE_OFFSET, &sha2);
WHIRLPOOL_add (bootLoaderBuf + TC_BOOT_SECTOR_USER_MESSAGE_OFFSET + TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH, (TC_BOOT_SECTOR_USER_CONFIG_OFFSET - (TC_BOOT_SECTOR_USER_MESSAGE_OFFSET + TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH)) * 8, &whirlpool);
sha512_hash (bootLoaderBuf + TC_BOOT_SECTOR_USER_MESSAGE_OFFSET + TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH, (TC_BOOT_SECTOR_USER_CONFIG_OFFSET - (TC_BOOT_SECTOR_USER_MESSAGE_OFFSET + TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH)), &sha2);

5
src/Driver/DriveFilter.c
View File

@ -241,6 +241,7 @@ static void ComputeBootLoaderFingerprint(PDEVICE_OBJECT LowerDeviceObject, byte*
// compute Whirlpool+SHA512 fingerprint of bootloader including MBR
// we skip user configuration fields:
// TC_BOOT_SECTOR_PIM_VALUE_OFFSET = 400
// TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_OFFSET = 402
// => TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_SIZE = 4
// TC_BOOT_SECTOR_USER_MESSAGE_OFFSET = 406
@ -257,11 +258,11 @@ static void ComputeBootLoaderFingerprint(PDEVICE_OBJECT LowerDeviceObject, byte*
status = TCReadDevice (LowerDeviceObject, ioBuffer, offset, TC_SECTOR_SIZE_BIOS);
if (NT_SUCCESS (status))
{
WHIRLPOOL_add (ioBuffer, TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_OFFSET * 8, &whirlpool);
WHIRLPOOL_add (ioBuffer, TC_BOOT_SECTOR_PIM_VALUE_OFFSET * 8, &whirlpool);
WHIRLPOOL_add (ioBuffer + TC_BOOT_SECTOR_USER_MESSAGE_OFFSET + TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH, (TC_BOOT_SECTOR_USER_CONFIG_OFFSET - (TC_BOOT_SECTOR_USER_MESSAGE_OFFSET + TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH)) * 8, &whirlpool);
WHIRLPOOL_add (ioBuffer + TC_BOOT_SECTOR_USER_CONFIG_OFFSET + 1, (TC_MAX_MBR_BOOT_CODE_SIZE - (TC_BOOT_SECTOR_USER_CONFIG_OFFSET + 1)) * 8, &whirlpool);
sha512_hash (ioBuffer, TC_BOOT_SECTOR_OUTER_VOLUME_BAK_HEADER_CRC_OFFSET, &sha2);
sha512_hash (ioBuffer, TC_BOOT_SECTOR_PIM_VALUE_OFFSET, &sha2);
sha512_hash (ioBuffer + TC_BOOT_SECTOR_USER_MESSAGE_OFFSET + TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH, (TC_BOOT_SECTOR_USER_CONFIG_OFFSET - (TC_BOOT_SECTOR_USER_MESSAGE_OFFSET + TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH)), &sha2);
sha512_hash (ioBuffer + TC_BOOT_SECTOR_USER_CONFIG_OFFSET + 1, (TC_MAX_MBR_BOOT_CODE_SIZE - (TC_BOOT_SECTOR_USER_CONFIG_OFFSET + 1)), &sha2);

32
src/Mount/Mount.c
View File

@ -10359,9 +10359,11 @@ static BOOL CALLBACK PerformanceSettingsDlgProc (HWND hwndDlg, UINT msg, WPARAM
try
{
VOLUME_PROPERTIES_STRUCT prop;
try
{
BootEncStatus = BootEncObj->GetStatus();
BootEncObj->GetVolumeProperties (&prop);
}
catch (...)
{
@ -10384,7 +10386,7 @@ static BOOL CALLBACK PerformanceSettingsDlgProc (HWND hwndDlg, UINT msg, WPARAM
else
userConfig &= ~TC_BOOT_USER_CFG_FLAG_DISABLE_HW_ENCRYPTION;
BootEncObj->WriteBootSectorUserConfig (userConfig, customUserMessage);
BootEncObj->WriteBootSectorUserConfig (userConfig, customUserMessage, prop.volumePim);
}
SetDriverConfigurationFlag (TC_DRIVER_CONFIG_DISABLE_HARDWARE_ENCRYPTION, disableHW);
@ -10724,6 +10726,7 @@ static BOOL CALLBACK BootLoaderPreferencesDlgProc (HWND hwndDlg, UINT msg, WPARA
SendMessage (GetDlgItem (hwndDlg, IDC_CUSTOM_BOOT_LOADER_MESSAGE), EM_LIMITTEXT, TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH, 0);
SetDlgItemTextA (hwndDlg, IDC_CUSTOM_BOOT_LOADER_MESSAGE, customUserMessage.c_str());
CheckDlgButton (hwndDlg, IDC_DISABLE_BOOT_LOADER_PIM_PROMPT, (userConfig & TC_BOOT_USER_CFG_FLAG_DISABLE_PIM) ? BST_CHECKED : BST_UNCHECKED);
CheckDlgButton (hwndDlg, IDC_DISABLE_BOOT_LOADER_OUTPUT, (userConfig & TC_BOOT_USER_CFG_FLAG_SILENT_MODE) ? BST_CHECKED : BST_UNCHECKED);
CheckDlgButton (hwndDlg, IDC_ALLOW_ESC_PBA_BYPASS, (userConfig & TC_BOOT_USER_CFG_FLAG_DISABLE_ESC) ? BST_UNCHECKED : BST_CHECKED);
CheckDlgButton (hwndDlg, IDC_BOOT_LOADER_CACHE_PASSWORD, bPasswordCacheEnabled ? BST_CHECKED : BST_UNCHECKED);
@ -10752,12 +10755,25 @@ static BOOL CALLBACK BootLoaderPreferencesDlgProc (HWND hwndDlg, UINT msg, WPARA
case IDOK:
{
VOLUME_PROPERTIES_STRUCT prop;
if (!BootEncObj->GetStatus().DriveMounted)
{
EndDialog (hwndDlg, IDCANCEL);
return 1;
}
try
{
BootEncObj->GetVolumeProperties (&prop);
}
catch (Exception &e)
{
e.Show (hwndDlg);
EndDialog (hwndDlg, IDCANCEL);
return 1;
}
char customUserMessage[TC_BOOT_SECTOR_USER_MESSAGE_MAX_LENGTH + 1];
GetDlgItemTextA (hwndDlg, IDC_CUSTOM_BOOT_LOADER_MESSAGE, customUserMessage, sizeof (customUserMessage));
@ -10772,6 +10788,11 @@ static BOOL CALLBACK BootLoaderPreferencesDlgProc (HWND hwndDlg, UINT msg, WPARA
return 1;
}
if (IsDlgButtonChecked (hwndDlg, IDC_DISABLE_BOOT_LOADER_PIM_PROMPT))
userConfig |= TC_BOOT_USER_CFG_FLAG_DISABLE_PIM;
else
userConfig &= ~TC_BOOT_USER_CFG_FLAG_DISABLE_PIM;
if (IsDlgButtonChecked (hwndDlg, IDC_DISABLE_BOOT_LOADER_OUTPUT))
userConfig |= TC_BOOT_USER_CFG_FLAG_SILENT_MODE;
else
@ -10786,7 +10807,7 @@ static BOOL CALLBACK BootLoaderPreferencesDlgProc (HWND hwndDlg, UINT msg, WPARA
{
BOOL bPasswordCacheEnabled = IsDlgButtonChecked (hwndDlg, IDC_BOOT_LOADER_CACHE_PASSWORD);
BOOL bPimCacheEnabled = IsDlgButtonChecked (hwndDlg, IDC_BOOT_LOADER_CACHE_PIM);
BootEncObj->WriteBootSectorUserConfig (userConfig, customUserMessage);
BootEncObj->WriteBootSectorUserConfig (userConfig, customUserMessage, prop.volumePim);
SetDriverConfigurationFlag (TC_DRIVER_CONFIG_CACHE_BOOT_PASSWORD, bPasswordCacheEnabled);
SetDriverConfigurationFlag (TC_DRIVER_CONFIG_CACHE_BOOT_PIM, (bPasswordCacheEnabled && bPimCacheEnabled)? TRUE : FALSE);
SetDriverConfigurationFlag (TC_DRIVER_CONFIG_DISABLE_EVIL_MAID_ATTACK_DETECTION, IsDlgButtonChecked (hwndDlg, IDC_DISABLE_EVIL_MAID_ATTACK_DETECTION));
@ -10801,6 +10822,13 @@ static BOOL CALLBACK BootLoaderPreferencesDlgProc (HWND hwndDlg, UINT msg, WPARA
return 1;
}
case IDC_DISABLE_BOOT_LOADER_PIM_PROMPT:
if ((IsDlgButtonChecked (hwndDlg, IDC_DISABLE_BOOT_LOADER_PIM_PROMPT))
&& AskWarnYesNo ("DISABLE_BOOT_LOADER_PIM_PROMPT", hwndDlg) == IDNO)
{
CheckDlgButton (hwndDlg, IDC_DISABLE_BOOT_LOADER_PIM_PROMPT, BST_UNCHECKED);
}
case IDC_DISABLE_BOOT_LOADER_OUTPUT:
if ((IsDlgButtonChecked (hwndDlg, IDC_DISABLE_BOOT_LOADER_OUTPUT))
&& AskWarnYesNo ("CUSTOM_BOOT_LOADER_MESSAGE_PROMPT", hwndDlg) == IDNO)

30
src/Mount/Mount.rc
View File

@ -281,28 +281,30 @@ BEGIN
LTEXT "",IDT_PKCS11_LIB_HELP,16,63,286,65
END
IDD_SYSENC_SETTINGS DIALOGEX 0, 0, 370, 272
IDD_SYSENC_SETTINGS DIALOGEX 0, 0, 370, 286
STYLE DS_SETFONT | DS_MODALFRAME | DS_FIXEDSYS | DS_CENTER | WS_POPUP | WS_CAPTION | WS_SYSMENU
CAPTION "VeraCrypt - System Encryption Settings"
FONT 8, "MS Shell Dlg", 400, 0, 0x1
BEGIN
CONTROL "Do not &show any texts in the pre-boot authentication screen (except the below custom message)",IDC_DISABLE_BOOT_LOADER_OUTPUT,
"Button",BS_AUTOCHECKBOX | WS_TABSTOP,18,22,339,9
EDITTEXT IDC_CUSTOM_BOOT_LOADER_MESSAGE,18,52,216,14,ES_AUTOHSCROLL
"Button",BS_AUTOCHECKBOX | WS_TABSTOP,18,37,339,9
EDITTEXT IDC_CUSTOM_BOOT_LOADER_MESSAGE,18,67,216,14,ES_AUTOHSCROLL
CONTROL "&Cache pre-boot authentication password in driver memory (for mounting of non-system volumes)",IDC_BOOT_LOADER_CACHE_PASSWORD,
"Button",BS_AUTOCHECKBOX | WS_TABSTOP,18,178,339,10
"Button",BS_AUTOCHECKBOX | WS_TABSTOP,18,192,339,10
CONTROL "Allow pre-boot &authentication to be bypassed by pressing the Esc key (enables boot manager)",IDC_ALLOW_ESC_PBA_BYPASS,
"Button",BS_AUTOCHECKBOX | WS_TABSTOP,18,208,340,10
DEFPUSHBUTTON "OK",IDOK,257,244,50,14
PUSHBUTTON "Cancel",IDCANCEL,313,244,50,14
LTEXT "Display this custom message in the pre-boot authentication screen (24 characters maximum):",IDT_CUSTOM_BOOT_LOADER_MESSAGE,18,41,337,8
GROUPBOX "Boot Loader Screen Options",IDT_BOOT_LOADER_SCREEN_OPTIONS,8,7,355,150
GROUPBOX "Security Options",IDT_SECURITY_OPTIONS,8,163,355,75
LTEXT "",IDC_CUSTOM_BOOT_LOADER_MESSAGE_HELP,18,74,337,73
"Button",BS_AUTOCHECKBOX | WS_TABSTOP,18,222,340,10
DEFPUSHBUTTON "OK",IDOK,257,262,50,14
PUSHBUTTON "Cancel",IDCANCEL,313,262,50,14
LTEXT "Display this custom message in the pre-boot authentication screen (24 characters maximum):",IDT_CUSTOM_BOOT_LOADER_MESSAGE,18,56,337,8
GROUPBOX "Boot Loader Screen Options",IDT_BOOT_LOADER_SCREEN_OPTIONS,8,7,355,165
GROUPBOX "Security Options",IDT_SECURITY_OPTIONS,8,177,355,75
LTEXT "",IDC_CUSTOM_BOOT_LOADER_MESSAGE_HELP,18,89,337,73
CONTROL "Disable ""Evil Maid"" attack detection",IDC_DISABLE_EVIL_MAID_ATTACK_DETECTION,
"Button",BS_AUTOCHECKBOX | WS_TABSTOP,18,223,340,10
"Button",BS_AUTOCHECKBOX | WS_TABSTOP,18,237,340,10
CONTROL "Include PIM when caching pre-boot authentication password",IDC_BOOT_LOADER_CACHE_PIM,
"Button",BS_AUTOCHECKBOX | WS_DISABLED | WS_TABSTOP,18,193,340,10
"Button",BS_AUTOCHECKBOX | WS_DISABLED | WS_TABSTOP,18,207,340,10
CONTROL "Do not request PIM in the pre-boot authentication screen (PIM value is stored unencrypted on disk)",IDC_DISABLE_BOOT_LOADER_PIM_PROMPT,
"Button",BS_AUTOCHECKBOX | WS_TABSTOP,18,20,339,9
END
IDD_PERFORMANCE_SETTINGS DIALOGEX 0, 0, 370, 248
@ -456,7 +458,7 @@ BEGIN
LEFTMARGIN, 7
RIGHTMARGIN, 363
TOPMARGIN, 7
BOTTOMMARGIN, 258
BOTTOMMARGIN, 276
END
IDD_PERFORMANCE_SETTINGS, DIALOG

3
src/Mount/Resource.h
View File

@ -179,6 +179,7 @@
#define IDT_VOLUME_ID 1157
#define IDC_FAVORITE_VOLUME_ID 1158
#define IDC_FAVORITE_USE_VOLUME_ID 1159
#define IDC_DISABLE_BOOT_LOADER_PIM_PROMPT 1160
#define IDM_HELP 40001
#define IDM_ABOUT 40002
#define IDM_UNMOUNT_VOLUME 40003
@ -255,7 +256,7 @@
#define _APS_NO_MFC 1
#define _APS_NEXT_RESOURCE_VALUE 119
#define _APS_NEXT_COMMAND_VALUE 40069
#define _APS_NEXT_CONTROL_VALUE 1160
#define _APS_NEXT_CONTROL_VALUE 1161
#define _APS_NEXT_SYMED_VALUE 101
#endif
#endif