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/*
* Copyright (C) 2010 Andreas Steffen
* HSR 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.
*/
/**
* @defgroup imv_manager imv_manager
* @{ @ingroup imv
*/
#ifndef IMV_MANAGER_H_
#define IMV_MANAGER_H_
typedef struct imv_manager_t imv_manager_t;
#include "imv.h"
#include "imv_recommendations.h"
#include <library.h>
/**
* The IMV manager controls all IMV instances.
*/
struct imv_manager_t {
/**
* Add an IMV instance
*
* @param imv IMV instance
* @return TRUE if initialization successful
*/
bool (*add)(imv_manager_t *this, imv_t *imv);
/**
* Remove an IMV instance from the list and return it
*
* @param id ID of IMV instance
* @return removed IMC instance
*/
imv_t* (*remove)(imv_manager_t *this, TNC_IMVID id);
/**
* Load and initialize an IMV as a dynamic library and add it to the list
*
* @param name name of the IMV to be loaded
* @param path path of the IMV dynamic library file
* @return TRUE if loading succeeded
*/
bool (*load)(imv_manager_t *this, char *name, char *path);
/**
* Check if an IMV with a given ID is registered with the IMV manager
*
* @param id ID of IMV instance
* @return TRUE if registered
*/
bool (*is_registered)(imv_manager_t *this, TNC_IMVID id);
/**
* Reserve an additional ID for an IMV
*
* @param id ID of IMV instance
* @param new_id reserved ID assigned to IMV
* @return TRUE if primary IMV ID was used
*/
bool (*reserve_id)(imv_manager_t *this, TNC_IMVID id, TNC_UInt32 *new_id);
/**
* Get the configured recommendation policy
*
* @return configured recommendation policy
*/
recommendation_policy_t (*get_recommendation_policy)(imv_manager_t *this);
/**
* Create an empty set of IMV recommendations and evaluations
*
* @return instance of a recommendations_t list
*/
recommendations_t* (*create_recommendations)(imv_manager_t *this);
/**
* Enforce the TNC recommendation on the IKE_SA by either inserting an
* allow|isolate group membership rule (TRUE) or by blocking access (FALSE)
*
* @param rec TNC action recommendation
* @param eval TNC evaluation result
* @return TRUE for allow|isolate, FALSE for none
*/
bool (*enforce_recommendation)(imv_manager_t *this,
TNC_IMV_Action_Recommendation rec,
TNC_IMV_Evaluation_Result eval);
/**
* Notify all IMV instances
*
* @param state communicate the state a connection has reached
*/
void (*notify_connection_change)(imv_manager_t *this,
TNC_ConnectionID id,
TNC_ConnectionState state);
/**
* Sets the supported message types reported by a given IMV
*
* @param id ID of reporting IMV
* @param supported_types list of messages type supported by IMV
* @param type_count number of supported message types
* @return TNC result code
*/
TNC_Result (*set_message_types)(imv_manager_t *this,
TNC_IMVID id,
TNC_MessageTypeList supported_types,
TNC_UInt32 type_count);
/**
* Sets the supported long message types reported by a given IMV
*
* @param id ID of reporting IMV
* @param supported_vids list of vendor IDs supported by IMV
* @param supported_subtypes list of messages type supported by IMV
* @param type_count number of supported message types
* @return TNC result code
*/
TNC_Result (*set_message_types_long)(imv_manager_t *this,
TNC_IMVID id,
TNC_VendorIDList supported_vids,
TNC_MessageSubtypeList supported_subtypes,
TNC_UInt32 type_count);
/**
* Solicit recommendations from IMVs that have not yet provided one
*
* @param id connection ID
*/
void (*solicit_recommendation)(imv_manager_t *this, TNC_ConnectionID id);
/**
* Delivers a message to interested IMVs.
*
* @param connection_id connection ID
* @param excl exclusive message flag
* @param msg message
* @param msg_len message length
* @param msg_vid message Vendor ID
* @param msg_subtype message subtype
* @param src_imc_id source IMC ID
* @param dst_imv_id destination IMV ID
*/
void (*receive_message)(imv_manager_t *this,
TNC_ConnectionID connection_id,
bool excl,
TNC_BufferReference msg,
TNC_UInt32 msg_len,
TNC_VendorID msg_vid,
TNC_MessageSubtype msg_subtype,
TNC_UInt32 src_imc_id,
TNC_UInt32 dst_imv_id);
/**
* Notify all IMVs that all IMC messages received in a batch have been
* delivered and this is the IMVs last chance to send a message in the
* batch of IMV messages currently being collected.
*
* @param id connection ID
*/
void (*batch_ending)(imv_manager_t *this, TNC_ConnectionID id);
/**
* Destroy an IMV manager and all its controlled instances.
*/
void (*destroy)(imv_manager_t *this);
};
#endif /** IMV_MANAGER_H_ @}*/
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