[partition] update LuksDevice to savePassphrase and enum

src/modules/partition/core/KPMHelpers.cpp

@@ -167,24 +167,27 @@ testPassphrase( FS::luks* fs, const QString& deviceNode, const QString& passphra
 }
 #endif
 
-// Adapted from luks cryptOpen which always opens a dialog to ask for a passphrase
-int
-updateLuksDevice( Partition* partition, const QString& passphrase )
+// Adapted from src/fs/luks.cpp cryptOpen which always opens a dialog to ask for a passphrase
+/**
+ * @brief
+ * Save an existing passphrase for a previously encrypted partition.
+ * @param partition
+ * @param passphrase
+ * @return SavePassphraseValue
+ */
+SavePassphraseValue
+savePassphrase( Partition* partition, const QString& passphrase )
 {
     const QString deviceNode = partition->partitionPath();
 
-    cDebug() << "Update Luks device: " << deviceNode;
-
     if ( passphrase.isEmpty() )
     {
-        cWarning() << Logger::SubEntry << "#1: Passphrase is empty";
-        return 1;
+        return SavePassphraseValue::EmptyPassphrase;
     }
 
     if ( partition->fileSystem().type() != FileSystem::Luks )
     {
-        cWarning() << Logger::SubEntry << "#2: Not a luks encrypted device";
-        return 2;
+        return SavePassphraseValue::NotLuksPartition;
     }
 
     // Cast partition fs to luks fs
@@ -193,16 +196,14 @@ updateLuksDevice( Partition* partition, const QString& passphrase )
     // Test the given passphrase
     if ( !testPassphrase( luksFs, deviceNode, passphrase ) )
     {
-        cWarning() << Logger::SubEntry << "#3: Passphrase incorrect";
-        return 3;
+        return SavePassphraseValue::IncorrectPassphrase;
     }
 
     if ( luksFs->isCryptOpen() )
     {
         if ( !luksFs->mapperName().isEmpty() )
         {
-            cWarning() << Logger::SubEntry << "#4: Device already decrypted";
-            return 4;
+            return SavePassphraseValue::NoError;
         }
         else
         {
@@ -217,7 +218,7 @@ updateLuksDevice( Partition* partition, const QString& passphrase )
     if ( !( openCmd.write( passphrase.toLocal8Bit() + '\n' ) && openCmd.start( -1 ) && openCmd.exitCode() == 0 ) )
     {
         cWarning() << Logger::SubEntry << openCmd.exitCode() << ": cryptsetup command failed";
-        return openCmd.exitCode();
+        return SavePassphraseValue::CryptsetupError;
     }
 
     // Save the existing passphrase
@@ -227,8 +228,7 @@ updateLuksDevice( Partition* partition, const QString& passphrase )
 
     if ( luksFs->mapperName().isEmpty() )
     {
-        cWarning() << Logger::SubEntry << "#5: No mapper node found";
-        return 5;
+        return SavePassphraseValue::NoMapperNode;
     }
 
     luksFs->loadInnerFileSystem( luksFs->mapperName() );
@@ -236,11 +236,10 @@ updateLuksDevice( Partition* partition, const QString& passphrase )
 
     if ( !luksFs->isCryptOpen() )
     {
-        cWarning() << Logger::SubEntry << "#6: Device could not be decrypted";
-        return 6;
+        return SavePassphraseValue::DeviceNotDecrypted;
     }
 
-    return 0;
+    return SavePassphraseValue::NoError;
 }
 
 Calamares::JobResult

src/modules/partition/core/KPMHelpers.h

@@ -43,6 +43,17 @@ class PartitionRole;
 namespace KPMHelpers
 {
 
+enum SavePassphraseValue
+{
+    NoError,
+    EmptyPassphrase,
+    NotLuksPartition,
+    IncorrectPassphrase,
+    CryptsetupError,
+    NoMapperNode,
+    DeviceNotDecrypted
+};
+
 /**
  * Iterates on all devices and return the first partition which is associated
  * with mountPoint. This uses PartitionInfo::mountPoint(), not Partition::mountPoint()
@@ -74,7 +85,7 @@ Partition* createNewEncryptedPartition( PartitionNode* parent,
 
 Partition* clonePartition( Device* device, Partition* partition );
 
-int updateLuksDevice( Partition* partition, const QString& passphrase );
+SavePassphraseValue savePassphrase( Partition* partition, const QString& passphrase );
 
 /** @brief Return a result for an @p operation
  *

src/modules/partition/gui/EditExistingPartitionDialog.cpp

@@ -254,8 +254,8 @@ EditExistingPartitionDialog::applyChanges( PartitionCoreModule* core )
         const QString passphrase = m_ui->encryptWidget->passphrase();
         if ( !passphrase.isEmpty() )
         {
-            int retCode = KPMHelpers::updateLuksDevice( m_partition, passphrase );
-            if ( retCode != 0 )
+            KPMHelpers::SavePassphraseValue ret = KPMHelpers::savePassphrase( m_partition, passphrase );
+            if ( ret != KPMHelpers::SavePassphraseValue::NoError )
             {
                 QString message = tr( "Passphrase for existing partition" );
                 QString description = tr( "Partition %1 could not be decrypted "