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+/*
+ * Copyright (C) 2007 Tobias Brunner
+ * 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.
+ *
+ * $Id: ike_me.h 3666 2008-03-26 18:40:19Z tobias $
+ */
+
+/**
+ * @defgroup ike_me ike_me
+ * @{ @ingroup tasks
+ */
+
+#ifndef IKE_ME_H_
+#define IKE_ME_H_
+
+typedef struct ike_me_t ike_me_t;
+
+#include <library.h>
+#include <sa/ike_sa.h>
+#include <sa/tasks/task.h>
+
+/**
+ * Task of type IKE_ME, detects and handles IKE-ME extensions.
+ *
+ * This tasks handles the ME_MEDIATION Notify exchange to setup a mediation
+ * connection, allows to initiate mediated connections using ME_CONNECT
+ * exchanges and to request reflexive addresses from the mediation server using
+ * ME_ENDPOINT notifies.
+ *
+ * @note This task has to be activated before the IKE_AUTH task, because that
+ * task generates the IKE_SA_INIT message so that no more payloads can be added
+ * to it afterwards.
+ */
+struct ike_me_t {
+
+ /**
+ * Implements the task_t interface
+ */
+ task_t task;
+
+ /**
+ * Initiates a connection with another peer (i.e. sends a ME_CONNECT
+ * to the mediation server)
+ *
+ * @param peer_id ID of the other peer (gets cloned)
+ */
+ void (*connect)(ike_me_t *this, identification_t *peer_id);
+
+ /**
+ * Responds to a ME_CONNECT from another peer (i.e. sends a ME_CONNECT
+ * to the mediation server)
+ *
+ * @param peer_id ID of the other peer (gets cloned)
+ * @param connect_id the connect ID as provided by the initiator (gets cloned)
+ */
+ void (*respond)(ike_me_t *this, identification_t *peer_id, chunk_t connect_id);
+
+ /**
+ * Sends a ME_CALLBACK to a peer that previously requested another peer.
+ *
+ * @param peer_id ID of the other peer (gets cloned)
+ */
+ void (*callback)(ike_me_t *this, identification_t *peer_id);
+
+ /**
+ * Relays data to another peer (i.e. sends a ME_CONNECT to the peer)
+ *
+ * Data gets cloned.
+ *
+ * @param requester ID of the requesting peer
+ * @param connect_id content of the ME_CONNECTID notify
+ * @param connect_key content of the ME_CONNECTKEY notify
+ * @param endpoints endpoints
+ * @param response TRUE if this is a response
+ */
+ void (*relay)(ike_me_t *this, identification_t *requester, chunk_t connect_id,
+ chunk_t connect_key, linked_list_t *endpoints, bool response);
+
+};
+
+/**
+ * Create a new ike_me task.
+ *
+ * @param ike_sa IKE_SA this task works for
+ * @param initiator TRUE if taks is initiated by us
+ * @return ike_me task to handle by the task_manager
+ */
+ike_me_t *ike_me_create(ike_sa_t *ike_sa, bool initiator);
+
+#endif /*IKE_ME_H_ @} */