1 files changed, 113 insertions, 0 deletions
diff --git a/Source/charon/config/configuration.c b/Source/charon/config/configuration.c
new file mode 100755
index 000000000..692fdd0f9
--- /dev/null
+++ b/Source/charon/config/configuration.c
@@ -0,0 +1,113 @@
+/**
+ * @file configuration.c
+ * 
+ * @brief Implementation of configuration_t.
+ * 
+ */
+
+/*
+ * Copyright (C) 2006 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.
+ */
+
+#include <stdlib.h>
+
+#include "configuration.h"
+
+#include <types.h>
+#include <utils/allocator.h>
+
+/**
+ * First retransmit timeout in milliseconds.
+ * Timeout value is increasing in each retransmit round.
+ */
+#define RETRANSMIT_TIMEOUT 3000
+
+/**
+ * Timeout in milliseconds after that a half open IKE_SA gets deleted.
+ */
+#define HALF_OPEN_IKE_SA_TIMEOUT 30000
+
+/**
+ * Max retransmit count.
+ * 0 for infinite. The max time a half open IKE_SA is alive is set by 
+ * RETRANSMIT_TIMEOUT.
+ */
+#define MAX_RETRANSMIT_COUNT 0
+
+
+typedef struct private_configuration_t private_configuration_t;
+
+/**
+ * Private data of an configuration_t object.
+ */
+struct private_configuration_t {
+
+	/**
+	 * Public part of configuration_t object.
+	 */
+	configuration_t public;
+
+};
+
+/**
+ * Implementation of configuration_t.get_retransmit_timeout.
+ */
+static status_t get_retransmit_timeout (private_configuration_t *this, u_int32_t retransmit_count, u_int32_t *timeout)
+{
+	int new_timeout = RETRANSMIT_TIMEOUT, i;
+	if (retransmit_count > MAX_RETRANSMIT_COUNT && MAX_RETRANSMIT_COUNT != 0)
+	{
+		return FAILED;
+	}
+	
+	for (i = 0; i < retransmit_count; i++)
+	{
+		new_timeout *= 2;
+	}
+	
+	*timeout = new_timeout;
+	
+	return SUCCESS;
+}
+
+/**
+ * Implementation of configuration_t.get_half_open_ike_sa_timeout.
+ */
+static u_int32_t get_half_open_ike_sa_timeout (private_configuration_t *this)
+{
+	return HALF_OPEN_IKE_SA_TIMEOUT;
+}
+
+/**
+ * Implementation of configuration_t.destroy.
+ */
+static void destroy(private_configuration_t *this)
+{
+	allocator_free(this);
+}
+
+/*
+ * Described in header-file
+ */
+configuration_t *configuration_create()
+{
+	private_configuration_t *this = allocator_alloc_thing(private_configuration_t);
+	
+	/* public functions */
+	this->public.destroy = (void(*)(configuration_t*))destroy;
+	this->public.get_retransmit_timeout = (status_t (*) (configuration_t *, u_int32_t retransmit_count, u_int32_t *timeout))get_retransmit_timeout;
+	this->public.get_half_open_ike_sa_timeout = (u_int32_t (*) (configuration_t *)) get_half_open_ike_sa_timeout;
+	
+	return (&this->public);
+}