- class ike_sa_t partly implemented

Source/charon/ike_sa.c

@@ -0,0 +1,172 @@
+/**
+ * @file ike_sa.c
+ * 
+ * @brief Class ike_sa_t. An object of this type is managed by an
+ * ike_sa_manager_t-object and represents an IKE_SA
+ * 
+ */
+
+/*
+ * Copyright (C) 2005 Jan Hutter, 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 "types.h"
+#include "linked_list.h"
+#include "ike_sa.h"
+
+
+/**
+ * States in which a IKE_SA can actually be
+ */
+typedef enum ike_sa_state_e ike_sa_state_t;
+
+enum ike_sa_state_e{
+
+	/**
+	 * IKE_SA is is not in a state
+	 */
+	NO_STATE,
+	
+	/**
+	 * A IKE_SA_INIT-message was sent: role initiator
+	 */
+	IKE_SA_INIT_REQUESTED,
+	
+	/**
+	 * A IKE_SA_INIT-message was replied: role responder
+	 */
+	IKE_SA_INIT_RESPONDED,
+	
+	/**
+	 * An IKE_AUTH-message was sent after a successful 
+	 * IKE_SA_INIT-exchange: role initiator
+	 */
+	IKE_AUTH_REQUESTED,
+
+	/**
+	 * An IKE_AUTH-message was replied: role responder.
+	 * In this state, all the informations for an IKE_SA 
+	 * and one CHILD_SA are known.
+	 */
+	IKE_SA_INITIALIZED
+};
+
+
+/**
+ * Private data of an message_t object
+ */
+typedef struct private_ike_sa_s private_ike_sa_t;
+ 
+struct private_ike_sa_s { 	
+
+	/**
+	 * Public part of a ike_sa_t object
+	 */
+	ike_sa_t public;
+	 
+	 
+	/* Private values */
+	/**
+	 * Identifier for the current IKE_SA
+	 */
+	ike_sa_id_t *ike_sa_id;
+	
+	/**
+	 * Linked List containing the child sa's of the current IKE_SA
+	 */
+	linked_list_t *child_sas;
+	
+	/**
+	 * Current state of the IKE_SA
+	 */
+	ike_sa_state_t current_state;
+};
+
+/**
+ * @brief implements function process_message of private_ike_sa_t
+ */
+static status_t process_message (private_ike_sa_t *this, message_t *message)
+{
+	/* @TODO Add Message Processing here */
+	return SUCCESS;
+}
+
+/**
+ * @brief implements function process_configuration of private_ike_sa_t
+ */
+static status_t process_configuration (private_ike_sa_t *this,configuration_t *configuration)
+{
+	/*
+	 * @TODO Add configuration processing here 
+	 */
+	return SUCCESS;
+}
+
+/**
+ * @brief implements function destroy of private_ike_sa_t
+ */
+static status_t destroy (private_ike_sa_t *this)
+{
+	if (this == NULL)
+	{
+		return FAILED;
+	}
+	
+	this->ike_sa_id->destroy(this->ike_sa_id);
+	
+	this->child_sas->destroy(this->child_sas);
+
+	pfree(this);
+	
+	return SUCCESS;
+}
+
+/*
+ * Described in Header
+ */
+ike_sa_t * ike_sa_create(ike_sa_id_t *ike_sa_id)
+{
+	private_ike_sa_t *this = alloc_thing(private_ike_sa_t, "private_ike_sa_t");
+	if (this == NULL)
+	{
+		return NULL;
+	}
+	
+	
+	/* Public functions */
+	this->public.process_message = (status_t(*)(ike_sa_t*, message_t*)) process_message;
+	this->public.process_configuration = (status_t(*)(ike_sa_t*, configuration_t*)) process_configuration;	
+	this->public.destroy = (status_t(*)(ike_sa_t*))destroy;
+	
+	
+	/* initialize private fields */
+	if (ike_sa_id->clone(ike_sa_id,&(this->ike_sa_id)) != SUCCESS)
+	{
+		pfree(this);
+		return NULL;
+	}
+	
+	this->child_sas = linked_list_create();
+	if (this->child_sas == NULL)
+	{
+		this->ike_sa_id->destroy(this->ike_sa_id);
+		pfree(this);
+		return NULL;
+	}
+	
+	/* at creation time, IKE_SA isn't in a specific state */
+	this->current_state = NO_STATE;
+	
+	return (&this->public);		
+}

Source/charon/ike_sa.h

@@ -0,0 +1,83 @@
+/**
+ * @file ike_sa.h
+ * 
+ * @brief Class ike_sa_t. An object of this type is managed by an
+ * ike_sa_manager_t-object and represents an IKE_SA
+ * 
+ */
+
+/*
+ * Copyright (C) 2005 Jan Hutter, 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.
+ */
+
+#ifndef IKE_SA_H_
+#define IKE_SA_H_
+
+#include "types.h"
+#include "message.h"
+#include "configuration.h"
+#include "ike_sa_id.h"
+
+/**
+ * @brief This class is used to represent an IKE_SA
+ * 
+ */
+typedef struct ike_sa_s ike_sa_t;
+
+struct ike_sa_s { 	
+
+	/**
+	 * @brief Processes a incoming IKEv2-Message of type message_t
+	 * 
+	 * @param this ike_sa_t-object object
+ 	 * @param[in] message message_t-object to process
+	 * @return SUCCESSFUL if succeeded, FAILED otherwise
+	 */
+	status_t (*process_message) (ike_sa_t *this,message_t *message);
+
+	/**
+	 * @brief Processes a specific configuration
+	 * 
+	 * This function is called when a new IKE_SA is created
+	 * 
+	 * @param this ike_sa_t-message_t object object
+ 	 * @param[in] message message_t-object to process
+	 * @return SUCCESSFUL if succeeded, FAILED otherwise
+	 */
+	status_t (*process_configuration) (ike_sa_t *this,configuration_t *configuration);
+
+	/**
+	 * @brief Destroys a ike_sa_t object
+	 * 
+	 * @param this ike_sa_t object
+	 * @return SUCCESSFUL if succeeded, FAILED otherwise
+	 */
+	status_t (*destroy) (ike_sa_t *this);
+};
+
+/**
+ * Creates an ike_sa_t-object with a specific ike_sa_id_t-object
+ * 
+ * @param[in] ike_sa_id ike_sa_id_t-object to associate with new IKE_SA.
+ *  			  The object is internal getting cloned 
+ * 			  and so has to be destroyed by the caller.
+ *
+ * @warning the Content of internal ike_sa_id_t-Object can change over time 
+ * 			e.g. when a IKE_SA_INIT has been finished
+ *
+ * @return created ike_sa_t object
+ */
+ike_sa_t * ike_sa_create(ike_sa_id_t *ike_sa_id);
+
+#endif /*IKE_SA_H_*/