added a trap-manager to handle routed policies outside of IKE_SAs

2009-05-08 10:03:58 +02:00
parent c42d1469e6
commit eb8ed130af
3 changed files with 380 additions and 0 deletions
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2009 Martin Willi
+ * 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.
+ *
+ * $Id$
+ */
+
+/**
+ * @defgroup trap_manager trap_manager
+ * @{ @ingroup sa
+ */
+
+#ifndef TRAP_MANAGER_H_
+#define TRAP_MANAGER_H_
+
+#include <library.h>
+#include <utils/enumerator.h>
+#include <config/peer_cfg.h>
+
+typedef struct trap_manager_t trap_manager_t;
+
+/**
+ * Manage policies to create SAs from traffic.
+ */
+struct trap_manager_t {
+	
+	/**
+	 * Install a policy as a trap.
+	 *
+	 * @param peer		peer configuration to initiate on trap
+	 * @param child 	child configuration to install as a trap
+	 * @return			reqid of installed CHILD_SA, 0 if failed
+	 */
+	u_int (*install)(trap_manager_t *this, peer_cfg_t *peer, child_cfg_t *child);
+	
+	/**
+	 * Uninstall a trap policy.
+	 *
+	 * @param id		reqid of CHILD_SA to uninstall, returned by install()
+	 * @return			TRUE if uninstalled successfully
+	 */
+	bool (*uninstall)(trap_manager_t *this, u_int reqid);
+	
+	/**
+	 * Create an enumerator over all installed traps.
+	 *
+	 * @return			enumerator over (peer_cfg_t, child_sa_t)
+	 */
+	enumerator_t* (*create_enumerator)(trap_manager_t *this);
+	
+	/**
+	 * Acquire an SA triggered by an installed trap.
+	 *
+	 * @param reqid		requid of the triggering CHILD_SA
+	 * @param src		source of the triggering packet
+	 * @param dst		destination of the triggering packet
+	 */
+	void (*acquire)(trap_manager_t *this, u_int reqid, traffic_selector_t *src,
+					traffic_selector_t *dst);
+	
+	/**
+	 * Destroy a trap_manager_t.
+	 */
+	void (*destroy)(trap_manager_t *this);
+};
+
+/**
+ * Create a trap_manager instance.
+ */
+trap_manager_t *trap_manager_create();
+
+#endif /* TRAP_MANAGER_ @}*/