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diff --git a/src/frontends/osx/strongSwan/Control.h b/src/frontends/osx/strongSwan/Control.h
new file mode 100644
index 000000000..4bcfb5583
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+++ b/src/frontends/osx/strongSwan/Control.h
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+/*
+ * Copyright (C) 2013 Martin Willi
+ * Copyright (C) 2013 revosec AG
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#import <Foundation/Foundation.h>
+
+/**
+ * State of a connection during connect.
+ */
+typedef enum {
+	/** The connection is currently down */
+	STATE_DOWN,
+	/** The connection is getting established, the daemon is working */
+	STATE_WORKING,
+	/** The connection has been established successfully */
+	STATE_UP,
+} connectionState;
+
+/**
+ * This protocol defines callback functions to invoke during connect.
+ */
+@protocol ControlDelegate
+
+/**
+ * The connection has changed its state
+ *
+ * @param state		new connection state
+ * @param conn		connection that changed its state
+ */
+- (void)change:(connectionState)state withConnection:(NSDictionary*)conn;
+
+/**
+ * A password is required for authentication
+ *
+ * @param conn		connection a password is required for
+ * @return			a retained password string
+ */
+- (NSString*)createPasswordWithConnection:(NSDictionary*)conn;
+
+/**
+ * Show an alert message to the user
+ *
+ * @param alert		alert message string
+ * @param conn		connection an error has occurred
+ */
+- (void)raise:(NSString*)alert withConnection:(NSDictionary*)conn;
+
+/**
+ * Log a line for a specific connection
+ *
+ * @param line		log line string
+ * @param conn		connection the line is logged for
+ */
+- (void)log:(NSString*)line withConnection:(NSDictionary*)conn;
+@end
+
+/**
+ * Implements connection connect/disconnect operations using a GUI delegate.
+ */
+@interface Control : NSObject
+
+/**
+ * Try to establish a connection
+ *
+ * @param conn		connection configuration to initiate
+ */
+- (void)connect:(NSDictionary*)conn;
+
+/**
+ * Disconnect a previously established connection
+ *
+ * @param conn		connection configuration to terminate
+ */
+- (void)disconnect:(NSDictionary*)conn;
+
+/**
+ * Initiate the Control class using a delegate for GUI operations
+ *
+ * @param delegate	delegate to invoke callbacks on during connect operation
+ * @return			class instance
+ */
+- (id)initWithDelegate:(id<ControlDelegate>)delegate;
+
+@end