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Windows: enhancements to the mechanism preserving file timestamps, especially for keyfiles.

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This commit is contained in:
Mounir IDRASSI
2019-12-08 22:51:49 +01:00
parent 7f1e21e6a1
commit 5e96a5c44c
8 changed files with 139 additions and 79 deletions
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35
src/ExpandVolume/ExpandVolume.c
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@@ -535,6 +535,27 @@ static int ExpandVolume (HWND hwndDlg, wchar_t *lpszVolume, Password *pVolumePas
if (dev == INVALID_HANDLE_VALUE)
goto error;
else if (!bDevice && bPreserveTimestamp)
{
// ensure that Last Access and Last Time timestamps are not modified
// in order to preserve plausible deniability of hidden volumes (last password change time is stored in the volume header).
ftLastAccessTime.dwHighDateTime = 0xFFFFFFFF;
ftLastAccessTime.dwLowDateTime = 0xFFFFFFFF;
SetFileTime (dev, NULL, &ftLastAccessTime, NULL);
/* Remember the container modification/creation date and time, (used to reset file date and time of
file-hosted volumes after password change (or attempt to), in order to preserve plausible deniability
of hidden volumes (last password change time is stored in the volume header). */
if (GetFileTime ((HANDLE) dev, &ftCreationTime, &ftLastAccessTime, &ftLastWriteTime) == 0)
{
bTimeStampValid = FALSE;
MessageBoxW (hwndDlg, GetString ("GETFILETIME_FAILED_PW"), lpszTitle, MB_OK | MB_ICONEXCLAMATION);
}
else
bTimeStampValid = TRUE;
}
if (bDevice)
{
@@ -628,20 +649,6 @@ static int ExpandVolume (HWND hwndDlg, wchar_t *lpszVolume, Password *pVolumePas
goto error;
}
if (!bDevice && bPreserveTimestamp)
{
/* Remember the container modification/creation date and time, (used to reset file date and time of
file-hosted volumes after password change (or attempt to), in order to preserve plausible deniability
of hidden volumes (last password change time is stored in the volume header). */
if (GetFileTime ((HANDLE) dev, &ftCreationTime, &ftLastAccessTime, &ftLastWriteTime) == 0)
{
bTimeStampValid = FALSE;
MessageBoxW (hwndDlg, GetString ("GETFILETIME_FAILED_PW"), lpszTitle, MB_OK | MB_ICONEXCLAMATION);
}
else
bTimeStampValid = TRUE;
}
// Seek the volume header
headerOffset.QuadPart = TC_VOLUME_HEADER_OFFSET;