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Linux/macOS: preserve unknown entries in configuration file

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This helps to preserve unknown entries that may be used by future
versions of VeraCrypt (forward compatibility) or entries used by old
versions that were removed from current version (backward compatibility)
This commit is contained in:
Mounir IDRASSI 2023-09-02 01:37:52 +02:00
parent 8e2329bf9e
commit 14fee0da1a
No known key found for this signature in database
GPG Key ID: FC1B00364B3FE937
2 changed files with 28 additions and 10 deletions
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34
src/Main/UserPreferences.cpp
View File

@ -58,6 +58,9 @@ namespace VeraCrypt
void UserPreferences::Load()
{
// first we clear the unknown config map entries
UnknownConfigMapEntries.clear();
// Preferences
FilePath cfgPath = Application::GetConfigFilePath (GetPreferencesFileName());
if (cfgPath.IsFile())
@ -68,14 +71,14 @@ namespace VeraCrypt
configMap[node.Attributes[L"key"]] = node.InnerText;
}
#define TC_CONFIG_SET(NAME) SetValue (configMap[L###NAME], NAME)
#define TC_CONFIG_SET(NAME) if (configMap.count(L###NAME) > 0) { SetValue (configMap[L###NAME], NAME); configMap.erase (L###NAME); }
TC_CONFIG_SET (BackgroundTaskEnabled);
TC_CONFIG_SET (BackgroundTaskMenuDismountItemsEnabled);
TC_CONFIG_SET (BackgroundTaskMenuMountItemsEnabled);
TC_CONFIG_SET (BackgroundTaskMenuOpenItemsEnabled);
TC_CONFIG_SET (BeepAfterHotkeyMountDismount);
SetValue (configMap[L"CachePasswords"], DefaultMountOptions.CachePassword);
if (configMap.count(L"CachePasswords") > 0) { SetValue (configMap[L"CachePasswords"], DefaultMountOptions.CachePassword); configMap.erase (L"CachePasswords"); }
TC_CONFIG_SET (CloseBackgroundTaskOnNoVolumes);
TC_CONFIG_SET (CloseExplorerWindowsOnDismount);
TC_CONFIG_SET (CloseSecurityTokenSessionsAfterMount);
@ -87,7 +90,7 @@ namespace VeraCrypt
TC_CONFIG_SET (DismountOnScreenSaver);
TC_CONFIG_SET (DisplayMessageAfterHotkeyDismount);
TC_CONFIG_SET (BackgroundTaskEnabled);
SetValue (configMap[L"FilesystemOptions"], DefaultMountOptions.FilesystemOptions);
if (configMap.count(L"FilesystemOptions") > 0) { SetValue (configMap[L"FilesystemOptions"], DefaultMountOptions.FilesystemOptions); configMap.erase (L"FilesystemOptions"); }
TC_CONFIG_SET (ForceAutoDismount);
TC_CONFIG_SET (LastSelectedSlotNumber);
TC_CONFIG_SET (MaxVolumeIdleTime);
@ -95,24 +98,26 @@ namespace VeraCrypt
TC_CONFIG_SET (MountFavoritesOnLogon);
bool readOnly = false;
SetValue (configMap[L"MountVolumesReadOnly"], readOnly);
if (configMap.count(L"MountVolumesReadOnly") > 0) { SetValue (configMap[L"MountVolumesReadOnly"], readOnly); configMap.erase (L"MountVolumesReadOnly"); }
DefaultMountOptions.Protection = readOnly ? VolumeProtection::ReadOnly : VolumeProtection::None;
SetValue (configMap[L"MountVolumesRemovable"], DefaultMountOptions.Removable);
SetValue (configMap[L"NoHardwareCrypto"], DefaultMountOptions.NoHardwareCrypto);
SetValue (configMap[L"NoKernelCrypto"], DefaultMountOptions.NoKernelCrypto);
if (configMap.count(L"MountVolumesRemovable") > 0) { SetValue (configMap[L"MountVolumesRemovable"], DefaultMountOptions.Removable); configMap.erase (L"MountVolumesRemovable"); }
if (configMap.count(L"NoHardwareCrypto") > 0) { SetValue (configMap[L"NoHardwareCrypto"], DefaultMountOptions.NoHardwareCrypto); configMap.erase (L"NoHardwareCrypto"); }
if (configMap.count(L"NoKernelCrypto") > 0) { SetValue (configMap[L"NoKernelCrypto"], DefaultMountOptions.NoKernelCrypto); configMap.erase (L"NoKernelCrypto"); }
TC_CONFIG_SET (OpenExplorerWindowAfterMount);
SetValue (configMap[L"PreserveTimestamps"], DefaultMountOptions.PreserveTimestamps);
if (configMap.count(L"PreserveTimestamps") > 0) { SetValue (configMap[L"PreserveTimestamps"], DefaultMountOptions.PreserveTimestamps); configMap.erase (L"PreserveTimestamps"); }
TC_CONFIG_SET (SaveHistory);
SetValue (configMap[L"SecurityTokenLibrary"], SecurityTokenModule);
if (configMap.count(L"SecurityTokenLibrary") > 0) { SetValue (configMap[L"SecurityTokenLibrary"], SecurityTokenModule); configMap.erase (L"SecurityTokenLibrary"); }
TC_CONFIG_SET (StartOnLogon);
TC_CONFIG_SET (UseKeyfiles);
TC_CONFIG_SET (WipeCacheOnAutoDismount);
TC_CONFIG_SET (WipeCacheOnClose);
wstring defaultPrf;
SetValue (configMap[L"DefaultPRF"], defaultPrf);
if (configMap.count(L"DefaultPRF") > 0) { SetValue (configMap[L"DefaultPRF"], defaultPrf); configMap.erase (L"DefaultPRF"); }
if (defaultPrf.empty())
defaultPrf = L"autodetection";
shared_ptr <Pkcs5Kdf> savedKdf;
try
{
@ -125,6 +130,9 @@ namespace VeraCrypt
DefaultMountOptions.Kdf = savedKdf;
DefaultMountOptions.ProtectionKdf = savedKdf;
// at this point, the configMap should be empty, if not, we have unknown config entries that we need to store
UnknownConfigMapEntries = configMap;
}
// Default keyfiles
@ -228,6 +236,12 @@ namespace VeraCrypt
defaultPrf = DefaultMountOptions.Kdf->GetName ();
formatter.AddEntry (L"DefaultPRF", defaultPrf);
// add unknown config entries by iterating over all elements of the UnknownConfigMapEntries map
for (map<wxString, wxString>::const_iterator it = UnknownConfigMapEntries.begin(); it != UnknownConfigMapEntries.end(); ++it)
{
formatter.AddEntry(it->first.c_str(), it->second);
}
XmlWriter writer (Application::GetConfigFilePath (GetPreferencesFileName(), true));
writer.WriteNode (formatter.XmlConfig);
writer.Close();

4
src/Main/UserPreferences.h
View File

@ -96,6 +96,10 @@ namespace VeraCrypt
bool WipeCacheOnAutoDismount;
bool WipeCacheOnClose;
// A map used to store unknown entries from the configuration file in order to preserve them when saving the configuration.
// This helps to preserve unknown entries that may be used by future versions of VeraCrypt or entries used by old versions that were removed from current version.
map <wxString, wxString> UnknownConfigMapEntries;
protected:
wxString GetDefaultKeyfilesFileName () const { return L"Default Keyfiles.xml"; }
#ifdef TC_PROTOTYPE