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diff --git a/src/charon/config/ike_cfg.h b/src/charon/config/ike_cfg.h
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+++ b/src/charon/config/ike_cfg.h
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+/**
+ * @file ike_cfg.h
+ *
+ * @brief Interface of ike_cfg_t.
+ *
+ */
+
+/*
+ * Copyright (C) 2005-2007 Martin Willi
+ * Copyright (C) 2005 Jan Hutter
+ * Hochschule fuer Technik Rapperswil
+ *
+ * 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.
+ */
+
+#ifndef IKE_CFG_H_
+#define IKE_CFG_H_
+
+typedef struct ike_cfg_t ike_cfg_t;
+
+#include <library.h>
+#include <utils/host.h>
+#include <utils/linked_list.h>
+#include <utils/identification.h>
+#include <config/proposal.h>
+#include <crypto/diffie_hellman.h>
+
+/**
+ * @brief An ike_cfg_t defines the rules to set up an IKE_SA.
+ *
+ * @see peer_cfg_t to get an overview over the configurations.
+ *
+ * @b Constructors:
+ *  - ike_cfg_create()
+ *
+ * @ingroup config
+ */
+struct ike_cfg_t {
+	
+	/**
+	 * @brief Get own address.
+	 * 
+	 * @param this	calling object
+	 * @return		host information as host_t object
+	 */
+	host_t* (*get_my_host) (ike_cfg_t *this);
+
+	/**
+	 * @brief Get peers address.
+	 * 
+	 * @param this	calling object
+	 * @return		host information as host_t object
+	 */
+	host_t* (*get_other_host) (ike_cfg_t *this);
+	
+	/**
+	 * @brief Adds a proposal to the list.
+	 * 
+	 * The first added proposal has the highest priority, the last
+	 * added the lowest.
+	 * 
+	 * @param this		calling object
+	 * @param proposal	proposal to add
+	 */
+	void (*add_proposal) (ike_cfg_t *this, proposal_t *proposal);
+	
+	/**
+	 * @brief Returns a list of all supported proposals.
+	 * 
+	 * Returned list and its proposals must be destroyed after use.
+	 * 
+	 * @param this		calling object
+	 * @return 			list containing all the proposals
+	 */
+	linked_list_t* (*get_proposals) (ike_cfg_t *this);
+	
+	/**
+	 * @brief Select a proposed from suggested proposals.
+	 * 
+	 * Returned proposal must be destroyed after use.
+	 * 
+	 * @param this		calling object
+	 * @param proposals	list of proposals to select from
+	 * @return			selected proposal, or NULL if none matches.
+	 */
+	proposal_t *(*select_proposal) (ike_cfg_t *this, linked_list_t *proposals);
+	
+	/**
+	 * @brief Should we send a certificate request in IKE_SA_INIT?
+	 *
+	 * @param this		calling object
+	 * @return			certificate request sending policy
+	 */
+	bool (*send_certreq) (ike_cfg_t *this);
+	
+	/**
+	 * @brief Get the DH group to use for IKE_SA setup.
+	 * 
+	 * @param this		calling object
+	 * @return			dh group to use for initialization
+	 */
+	diffie_hellman_group_t (*get_dh_group)(ike_cfg_t *this);
+	
+	/**
+	 * @brief Get a new reference to this ike_cfg.
+	 *
+	 * Get a new reference to this ike_cfg by increasing
+	 * it's internal reference counter.
+	 * Do not call get_ref or any other function until you
+	 * already have a reference. Otherwise the object may get
+	 * destroyed while calling get_ref(),
+	 *
+	 * @param this		calling object
+	 */
+	void (*get_ref) (ike_cfg_t *this);
+	
+	/**
+	 * @brief Destroys a ike_cfg_t object.
+	 * 
+	 * Decrements the internal reference counter and
+	 * destroys the ike_cfg when it reaches zero.
+	 * 
+	 * @param this		calling object
+	 */
+	void (*destroy) (ike_cfg_t *this);
+};
+
+/**
+ * @brief Creates a ike_cfg_t object.
+ *
+ * Supplied hosts become owned by ike_cfg, the name gets cloned.
+ *
+ * @param name			ike_cfg identifier
+ * @param certreq		TRUE to send a certificate request
+ * @param my_host		host_t representing local address
+ * @param other_host	host_t representing remote address
+ * @return 				ike_cfg_t object.
+ * 
+ * @ingroup config
+ */
+ike_cfg_t *ike_cfg_create(bool certreq, host_t *my_host, host_t *other_host);
+
+#endif /* IKE_CFG_H_ */