Wrap private key password and key direction properties

OpenVPN Adapter/OpenVPNConfiguration.h

@@ -122,4 +122,16 @@ typedef NS_ENUM(NSInteger, OpenVPNCompressionMode) {
  */
 @property (nonatomic) OpenVPNCompressionMode compressionMode;
 
+/**
+ Private key password
+ */
+@property (nullable, nonatomic) NSString *privateKeyPassword;
+
+/**
+ Default key direction parameter for tls-auth (0, 1, 
+ or -1 (bidirectional -- default)) if no key-direction 
+ parameter defined in profile
+ */
+@property (nonatomic) NSInteger keyDirection;
+
 @end

OpenVPN Adapter/OpenVPNConfiguration.mm

@@ -245,4 +245,20 @@ using namespace openvpn;
     }
 }
 
+- (NSString *)privateKeyPassword {
+    return !_config.privateKeyPassword.empty() ? [NSString stringWithUTF8String:_config.privateKeyPassword.c_str()] : nil;
+}
+
+- (void)setPrivateKeyPassword:(NSString *)privateKeyPassword {
+    _config.privateKeyPassword = privateKeyPassword ? std::string([privateKeyPassword UTF8String]) : "";
+}
+
+- (NSInteger)keyDirection {
+    return _config.defaultKeyDirection;
+}
+
+- (void)setKeyDirection:(NSInteger)keyDirection {
+    _config.defaultKeyDirection = keyDirection;
+}
+
 @end