VeraCrypt
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authorMounir IDRASSI <mounir.idrassi@idrix.fr>2016-02-13 14:40:15 (GMT)
committerMounir IDRASSI <mounir.idrassi@idrix.fr>2016-02-13 21:14:40 (GMT)
commit1f87e6412766019d62fa45bfe8489604083a411e (patch)
tree61e73791c249968cb1cdfbf2690b47c3391fc9f3 /src
parentd7d4c98775e34c7cb723ca813e8a76fe83610013 (diff)
downloadVeraCrypt-1f87e6412766019d62fa45bfe8489604083a411e.zip
VeraCrypt-1f87e6412766019d62fa45bfe8489604083a411e.tar.gz
Windows: handle rare case where size of disk can't be retrieved using IOCTL_DISK_GET_PARTITION_INFO_EX. use IOCTL_DISK_GET_DRIVE_GEOMETRY in such case and add workaround to display correctly partitions in dialog even if disk size is not available.
Diffstat (limited to 'src')
-rw-r--r--src/Common/Dlgcode.c43
-rw-r--r--src/Common/Dlgcode.h1
2 files changed, 43 insertions, 1 deletions
diff --git a/src/Common/Dlgcode.c b/src/Common/Dlgcode.c
index e3e7098..da37795 100644
--- a/src/Common/Dlgcode.c
+++ b/src/Common/Dlgcode.c
@@ -3422,7 +3422,9 @@ BOOL CALLBACK RawDevicesDlgProc (HWND hwndDlg, UINT msg, WPARAM wParam, LPARAM l
// Path
if (!device.IsPartition || device.DynamicVolume)
{
- if (!device.Floppy && device.Size == 0)
+ if (!device.Floppy && (device.Size == 0)
+ && (device.IsPartition || device.Partitions.empty() || device.Partitions[0].Size == 0)
+ )
continue;
if (line > 1)
@@ -7709,6 +7711,33 @@ BOOL GetDriveGeometry (const wchar_t *deviceName, PDISK_GEOMETRY diskGeometry)
return FALSE;
}
+BOOL GetPhysicalDriveGeometry (int driveNumber, PDISK_GEOMETRY diskGeometry)
+{
+ HANDLE hDev;
+ BOOL bResult = FALSE;
+ TCHAR devicePath[MAX_PATH];
+
+ StringCchPrintfW (devicePath, ARRAYSIZE (devicePath), L"\\\\.\\PhysicalDrive%d", driveNumber);
+
+ if ((hDev = CreateFileW (devicePath, 0, 0, NULL, OPEN_EXISTING, 0, NULL)) != INVALID_HANDLE_VALUE)
+ {
+ DWORD bytesRead = 0;
+
+ ZeroMemory (diskGeometry, sizeof (DISK_GEOMETRY));
+
+ if ( DeviceIoControl (hDev, IOCTL_DISK_GET_DRIVE_GEOMETRY, NULL, 0, diskGeometry, sizeof (DISK_GEOMETRY), &bytesRead, NULL)
+ && (bytesRead == sizeof (DISK_GEOMETRY))
+ && diskGeometry->BytesPerSector)
+ {
+ bResult = TRUE;
+ }
+
+ CloseHandle (hDev);
+ }
+
+ return bResult;
+}
+
// Returns drive letter number assigned to device (-1 if none)
int GetDiskDeviceDriveLetter (PWSTR deviceName)
@@ -10812,6 +10841,18 @@ std::vector <HostDevice> GetAvailableHostDevices (bool noDeviceProperties, bool
device.Bootable = partInfo.BootIndicator ? true : false;
device.Size = partInfo.PartitionLength.QuadPart;
}
+ else
+ {
+ // retrieve size using DISK_GEOMETRY
+ DISK_GEOMETRY deviceGeometry = {0};
+ if ( GetDriveGeometry (devPath, &deviceGeometry)
+ || ((partNumber == 0) && GetPhysicalDriveGeometry (devNumber, &deviceGeometry))
+ )
+ {
+ device.Size = deviceGeometry.Cylinders.QuadPart * (LONGLONG) deviceGeometry.BytesPerSector
+ * (LONGLONG) deviceGeometry.SectorsPerTrack * (LONGLONG) deviceGeometry.TracksPerCylinder;
+ }
+ }
device.HasUnencryptedFilesystem = (detectUnencryptedFilesystems && openTest.FilesystemDetected) ? true : false;
diff --git a/src/Common/Dlgcode.h b/src/Common/Dlgcode.h
index efaf935..2019992 100644
--- a/src/Common/Dlgcode.h
+++ b/src/Common/Dlgcode.h
@@ -452,6 +452,7 @@ void OpenOnlineHelp ();
BOOL GetPartitionInfo (const wchar_t *deviceName, PPARTITION_INFORMATION rpartInfo);
BOOL GetDeviceInfo (const wchar_t *deviceName, DISK_PARTITION_INFO_STRUCT *info);
BOOL GetDriveGeometry (const wchar_t *deviceName, PDISK_GEOMETRY diskGeometry);
+BOOL GetPhysicalDriveGeometry (int driveNumber, PDISK_GEOMETRY diskGeometry);
BOOL IsVolumeDeviceHosted (const wchar_t *lpszDiskFile);
int CompensateXDPI (int val);
int CompensateYDPI (int val);