refactored TNC framework

13 files changed, 606 insertions, 3 deletions

diff --git a/src/libtnccs/Makefile.am b/src/libtnccs/Makefile.am
index e75d1bdbc..5c730d172 100644
--- a/src/libtnccs/Makefile.am
+++ b/src/libtnccs/Makefile.am
@@ -6,7 +6,11 @@ ipseclib_LTLIBRARIES = libtnccs.la
 libtnccs_la_LIBADD = $(top_builddir)/src/libtncif/libtncif.la
 
 libtnccs_la_SOURCES = \
-	imc/imc.h imc/imc_manager.h \
-	imv/imv.h imv/imv_manager.h \
-	imv/imv_recommendations.h imv/imv_recommendations.c 
+	tnc/tnc.h tnc/tnc.c \
+	tnc/imc/imc.h tnc/imc/imc_manager.h \
+	tnc/imv/imv.h tnc/imv/imv_manager.h \
+	tnc/imv/imv_recommendations.h tnc/imv/imv_recommendations.c \
+	tnc/tnccs/tnccs.h tnc/tnccs/tnccs.c \
+	tnc/tnccs/tnccs_manager.h tnc/tnccs/tnccs_manager.c
+
 
diff --git a/src/libtnccs/imc/imc.h b/src/libtnccs/tnc/imc/imc.h
index ddedf714c..ddedf714c 100644
--- a/src/libtnccs/imc/imc.h
+++ b/src/libtnccs/tnc/imc/imc.h
diff --git a/src/libtnccs/imc/imc_manager.h b/src/libtnccs/tnc/imc/imc_manager.h
index b475e0eaf..750a1418a 100644
--- a/src/libtnccs/imc/imc_manager.h
+++ b/src/libtnccs/tnc/imc/imc_manager.h
@@ -49,6 +49,14 @@ struct imc_manager_t {
 	imc_t* (*remove)(imc_manager_t *this, TNC_IMCID id);
 
 	/**
+	 * Load all IMC instances
+	 *
+	 * @param filename			configuration file containt IMC paths
+	 * @return					TRUE if initialization of all IMCs succeeded
+	 */
+	 bool (*load_all)(imc_manager_t *this, char *filename);
+
+	/**
 	 * Check if an IMC with a given ID is registered with the IMC manager
 	 *
 	 * @param id				ID of IMC instance
diff --git a/src/libtnccs/imv/imv.h b/src/libtnccs/tnc/imv/imv.h
index df338d40a..df338d40a 100644
--- a/src/libtnccs/imv/imv.h
+++ b/src/libtnccs/tnc/imv/imv.h
diff --git a/src/libtnccs/imv/imv_manager.h b/src/libtnccs/tnc/imv/imv_manager.h
index bd10a6920..9c88f16ef 100644
--- a/src/libtnccs/imv/imv_manager.h
+++ b/src/libtnccs/tnc/imv/imv_manager.h
@@ -50,6 +50,14 @@ struct imv_manager_t {
 	imv_t* (*remove)(imv_manager_t *this, TNC_IMVID id);
 
 	/**
+	 * Load all IMV instances
+	 *
+	 * @param filename			configuration file containing IMV paths
+	 * @return					TRUE if initialization of all IMVs succeeded
+	 */
+	 bool (*load_all)(imv_manager_t *this, char *filename);
+
+	/**
 	 * Check if an IMV with a given ID is registered with the IMV manager
 	 *
 	 * @param id				ID of IMV instance
diff --git a/src/libtnccs/imv/imv_recommendations.c b/src/libtnccs/tnc/imv/imv_recommendations.c
index 9daaca16c..9daaca16c 100644
--- a/src/libtnccs/imv/imv_recommendations.c
+++ b/src/libtnccs/tnc/imv/imv_recommendations.c
diff --git a/src/libtnccs/imv/imv_recommendations.h b/src/libtnccs/tnc/imv/imv_recommendations.h
index d694e16ae..d694e16ae 100644
--- a/src/libtnccs/imv/imv_recommendations.h
+++ b/src/libtnccs/tnc/imv/imv_recommendations.h
diff --git a/src/libtnccs/tnc/tnc.c b/src/libtnccs/tnc/tnc.c
new file mode 100644
index 000000000..7eb493398
--- /dev/null
+++ b/src/libtnccs/tnc/tnc.c
@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2011 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.
+ */
+
+#include "tnc.h"
+
+typedef struct private_tnc_t private_tnc_t;
+
+typedef tnccs_manager_t *(*tnc_create_tnccs_manager_t)(void);
+typedef imc_manager_t *(*tnc_create_imc_manager_t)(void);
+typedef imv_manager_t *(*tnc_create_imv_manager_t)(void);
+
+/**
+ * Private additions to tnc_t.
+ */
+struct private_tnc_t {
+
+	/**
+	 * Public members of tnc_t.
+	 */
+	tnc_t public;
+};
+
+/**
+ * Single instance of tnc_t.
+ */
+tnc_t *tnc;
+
+/**
+ * Described in header.
+ */
+void libtnccs_init(void)
+{
+	private_tnc_t *this;
+
+	INIT(this,
+		.public = {
+		},
+	);	
+
+	tnc = &this->public;
+}
+
+/**
+ * Described in header.
+ */
+void libtnccs_deinit(void)
+{
+	private_tnc_t *this = (private_tnc_t*)tnc;
+
+	free(this);
+	tnc = NULL;
+}
+
+/**
+ * Described in header.
+ */
+bool tnc_manager_register(plugin_t *plugin, plugin_feature_t *feature,
+						  bool reg, void *data)
+{
+	char *tnc_config;
+
+	tnc_config = lib->settings->get_str(lib->settings,
+						"libtnccs.tnc_config", "/etc/tnc_config");
+
+	if (feature->type == FEATURE_CUSTOM)
+	{
+		if (streq(feature->arg.custom, "tnccs-manager"))
+		{
+			if (reg)
+			{
+				tnc->tnccs = ((tnc_create_tnccs_manager_t)data)();
+			}
+			else
+			{
+				tnc->tnccs->destroy(tnc->tnccs);
+				tnc->tnccs = NULL;
+			}
+		}
+		else if (streq(feature->arg.custom, "imc-manager"))
+		{
+			if (reg)
+			{
+				tnc->imcs = ((tnc_create_imc_manager_t)data)();
+
+
+				if (!tnc->imcs->load_all(tnc->imcs, tnc_config))
+				{
+					tnc->imcs->destroy(tnc->imcs);
+					tnc->imcs = NULL;
+					return FALSE;
+				}
+			}
+			else
+			{
+				tnc->imcs->destroy(tnc->imcs);
+				tnc->imcs = NULL;
+			}
+		}
+		else if (streq(feature->arg.custom, "imv-manager"))
+		{
+			if (reg)
+			{
+				tnc->imvs = ((tnc_create_imv_manager_t)data)();
+
+				if (!tnc->imvs->load_all(tnc->imvs, tnc_config))
+				{
+					tnc->imvs->destroy(tnc->imvs);
+					tnc->imvs = NULL;
+					return FALSE;
+				}
+			}
+			else
+			{
+				tnc->imvs->destroy(tnc->imvs);
+				tnc->imvs = NULL;
+			}
+		}
+		else
+		{
+			return FALSE;
+		}
+	}
+	return TRUE;
+}
+
diff --git a/src/libtnccs/tnc/tnc.h b/src/libtnccs/tnc/tnc.h
new file mode 100644
index 000000000..d360a2728
--- /dev/null
+++ b/src/libtnccs/tnc/tnc.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2011 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 tnc tnc
+ * @ingroup tnc
+ *
+ * @defgroup tnc tnc
+ * @{ @ingroup tnc
+ */
+
+#ifndef TNC_H_
+#define TNC_H_
+
+typedef struct tnc_t tnc_t;
+
+#include "tnc/imc/imc_manager.h"
+#include "tnc/imv/imv_manager.h"
+#include "tnc/tnccs/tnccs_manager.h"
+
+#include <library.h>
+
+/**
+ * TNC management support object.
+ */
+struct tnc_t {
+
+	/**
+	 * TNC-IMC manager controlling Integrity Measurement Collectors
+	 */
+	imc_manager_t *imcs;
+
+	/**
+	 * TNC-IMV manager controlling Integrity Measurement Verifiers
+	 */
+	imv_manager_t *imvs;
+
+	/**
+	 * TNC-TNCCS manager controlling the TNC Server and Client protocols 
+	 */
+	tnccs_manager_t *tnccs;
+
+};
+
+/**
+ * The single instance of tnc_t.
+ *
+ * Exists between calls to libtnccs_init() and libtnccs_deinit().
+ */
+extern tnc_t *tnc;
+
+/**
+ * Initialize libtnccs.
+ */
+void libtnccs_init(void);
+
+/**
+ * Deinitialize libtnccs
+ */
+void libtnccs_deinit(void);
+
+/**
+ * Helper function to (un-)register TNC managers from plugin features.
+ *
+ * This function is a plugin_feature_callback_t and can be used with the
+ * PLUGIN_CALLBACK macro to register a TNC manager constructor.
+ *
+ * @param plugin		plugin registering the TNC manager
+ * @param feature		associated plugin feature
+ * @param reg			TRUE to register, FALSE to unregister.
+ * @param data			data passed to callback, a TNC manager constructor
+ */
+bool tnc_manager_register(plugin_t *plugin, plugin_feature_t *feature,
+						  bool reg, void *data);
+
+#endif /** TNC_H_ @}*/
diff --git a/src/libtnccs/tnc/tnccs/tnccs.c b/src/libtnccs/tnc/tnccs/tnccs.c
new file mode 100644
index 000000000..80d0f497c
--- /dev/null
+++ b/src/libtnccs/tnc/tnccs/tnccs.c
@@ -0,0 +1,24 @@
+/*
+ * 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.
+ */
+
+#include "tnccs.h"
+
+ENUM(tnccs_type_names, TNCCS_UNKNOWN, TNCCS_2_0,
+	"unknown TNCCS",
+	"TNCCS 1.1",
+	"TNCCS SOH",
+	"TNCCS 2.0",
+);
+
diff --git a/src/libtnccs/tnc/tnccs/tnccs.h b/src/libtnccs/tnc/tnccs/tnccs.h
new file mode 100644
index 000000000..f9923f196
--- /dev/null
+++ b/src/libtnccs/tnc/tnccs/tnccs.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2010-1011 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 tnccs tnccs
+ * @ingroup tnc
+ *
+ * @defgroup tnccst tnccs
+ * @{ @ingroup tnccs
+ */
+
+#ifndef TNCCS_H_
+#define TNCCS_H_
+
+typedef struct tnccs_t tnccs_t;
+typedef enum tnccs_type_t tnccs_type_t;
+
+#include <tncif.h>
+#include <tncifimc.h>
+#include <tncifimv.h>
+
+#include <library.h>
+#include <plugins/plugin.h>
+
+/**
+ * Type of TNC Client/Server protocol
+ */
+enum tnccs_type_t {
+	TNCCS_UNKNOWN,
+	TNCCS_1_1,
+	TNCCS_SOH,
+	TNCCS_2_0,
+	TNCCS_DYNAMIC
+};
+
+/**
+ * enum names for tnccs_type_t.
+ */
+extern enum_name_t *tnccs_type_names;
+
+/**
+ * Constructor definition for a pluggable TNCCS protocol implementation.
+ *
+ * @param is_server		TRUE if TNC Server, FALSE if TNC Client
+ * @return				implementation of the tnccs_t interface
+ */
+typedef tnccs_t *(*tnccs_constructor_t)(bool is_server);
+
+/**
+ * Callback function adding a message to a TNCCS batch
+ *
+ * @param imc_id		ID of IMC or TNC_IMCID_ANY
+ * @param imc_id		ID of IMV or TNC_IMVID_ANY
+ * @param msg			message to be added
+ * @param msg_len		message length
+ * @param msg_type		message type
+ * @return			result code
+ */
+typedef TNC_Result (*tnccs_send_message_t)(tnccs_t* tncss, TNC_IMCID imc_id,
+													 TNC_IMVID imv_id,
+									 				 TNC_BufferReference msg,
+													 TNC_UInt32 msg_len,
+													 TNC_MessageType msg_type);
+
+#endif /** TNCCS_H_ @}*/
diff --git a/src/libtnccs/tnc/tnccs/tnccs_manager.c b/src/libtnccs/tnc/tnccs/tnccs_manager.c
new file mode 100644
index 000000000..fa91bfb21
--- /dev/null
+++ b/src/libtnccs/tnc/tnccs/tnccs_manager.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2011 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.
+ */
+
+#include "tnccs_manager.h"
+
+#include "tnc/tnc.h"
+
+#include <debug.h>
+
+/**
+ * See header
+ */
+bool tnccs_method_register(plugin_t *plugin, plugin_feature_t *feature,
+						   bool reg, void *data)
+{
+	if (!tnc || !tnc->tnccs)
+	{
+		DBG1(DBG_TNC, "TNC TNCCS manager does not exist");
+		return FALSE;
+	}
+	if (reg)
+	{
+		if (feature->type == FEATURE_CUSTOM)
+		{
+			tnccs_type_t type = TNCCS_UNKNOWN;
+
+			if (streq(feature->arg.custom, "tnccs-2.0"))
+			{
+				type = TNCCS_2_0;
+			}
+			else if (streq(feature->arg.custom, "tnccs-1.1"))
+			{
+				type = TNCCS_1_1;
+			}
+			else if (streq(feature->arg.custom, "tnccs-dynamic"))
+			{
+				type = TNCCS_DYNAMIC;
+			}
+			else
+			{
+				return FALSE;
+			}
+			tnc->tnccs->add_method(tnc->tnccs, type, (tnccs_constructor_t)data);
+		}
+	}
+	else
+	{
+		tnc->tnccs->remove_method(tnc->tnccs, (tnccs_constructor_t)data);
+	}
+	return TRUE;
+}
diff --git a/src/libtnccs/tnc/tnccs/tnccs_manager.h b/src/libtnccs/tnc/tnccs/tnccs_manager.h
new file mode 100644
index 000000000..26b0fa17c
--- /dev/null
+++ b/src/libtnccs/tnc/tnccs/tnccs_manager.h
@@ -0,0 +1,194 @@
+/*
+ * 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 tnccs_manager tnccs_manager
+ * @{ @ingroup tnccs
+ */
+
+#ifndef TNCCS_MANAGER_H_
+#define TNCCS_MANAGER_H_
+
+typedef struct tnccs_manager_t tnccs_manager_t;
+
+#include "tnccs.h"
+#include "tnc/imv/imv_recommendations.h"
+
+/**
+ * The TNCCS manager manages all TNCCS implementations and creates instances.
+ *
+ * A plugin registers its implemented TNCCS protocol with the manager by
+ * providing type and a constructor function. The manager then creates
+ * TNCCS protocol instances via the provided constructor.
+ */
+struct tnccs_manager_t {
+
+	/**
+	 * Register a TNCCS protocol implementation.
+	 *
+	 * @param type			TNCCS protocol type
+	 * @param constructor	constructor, returns a TNCCS protocol implementation
+	 */
+	void (*add_method)(tnccs_manager_t *this, tnccs_type_t type,
+					   tnccs_constructor_t constructor);
+
+	/**
+	 * Unregister a TNCCS protocol implementation using it's constructor.
+	 *
+	 * @param constructor	constructor function to remove, as added in add_method
+	 */
+	void (*remove_method)(tnccs_manager_t *this, tnccs_constructor_t constructor);
+
+	/**
+	 * Create a new TNCCS protocol instance.
+	 *
+	 * @param type		  type of the TNCCS protocol
+	 * @param is_server	  TRUE if TNC Server, FALSE if TNC Client
+	 * @return			  TNCCS protocol instance, NULL if no constructor found
+	 */
+	tnccs_t* (*create_instance)(tnccs_manager_t *this, tnccs_type_t type,
+								bool is_server);
+
+	/**
+	 * Create a TNCCS connection and assign a unique connection ID as well a
+	 * callback function for adding a message to a TNCCS batch and create
+	 * an empty set for collecting IMV recommendations
+	 *
+	 * @param tnccs						TNCCS connection instance
+	 * @param send_message				TNCCS callback function
+	 * @param request_handshake_retry	pointer to boolean variable
+	 * @param recs						pointer to IMV recommendation set
+	 * @return							assigned connection ID
+	 */
+	TNC_ConnectionID (*create_connection)(tnccs_manager_t *this, tnccs_t *tnccs,
+										  tnccs_send_message_t send_message,
+										  bool *request_handshake_retry,
+										  recommendations_t **recs);
+
+	/**
+	 * Remove a TNCCS connection using its connection ID.
+	 *
+	 * @param id				ID of the connection to be removed
+	 * @param is_server			TNC Server if TRUE, TNC Client if FALSE
+	 */
+	void (*remove_connection)(tnccs_manager_t *this, TNC_ConnectionID id,
+							  bool is_server);
+
+	/**
+	 * Request a handshake retry
+	 *
+	 * @param is_imc			TRUE if IMC, FALSE if IMV
+	 * @param imcv_id			ID of IMC or IMV requesting the retry
+	 * @param id				ID of a specific connection or any connection
+	 * @param reason			reason for the handshake retry
+	 * @return					return code
+	 */
+	TNC_Result (*request_handshake_retry)(tnccs_manager_t *this, bool is_imc,
+										  TNC_UInt32 imcv_id,
+										  TNC_ConnectionID id,
+										  TNC_RetryReason reason);
+
+	/**
+	 * Add an IMC/IMV message to the batch of a given connection ID.
+	 *
+	 * @param imc_id			ID of IMC or TNC_IMCID_ANY
+	 * @param imv_id			ID of IMV or TNC_IMVID_ANY
+	 * @param id				ID of target connection
+	 * @param msg				message to be added
+	 * @param msg_len			message length
+	 * @param msg_type			message type
+	 * @return					return code
+	 */
+	TNC_Result (*send_message)(tnccs_manager_t *this, TNC_IMCID imc_id,
+													  TNC_IMVID imv_id,
+													  TNC_ConnectionID id,
+													  TNC_BufferReference msg,
+													  TNC_UInt32 msg_len,
+													  TNC_MessageType msg_type);
+
+	/**
+	 * Deliver an IMV Action Recommendation and IMV Evaluation Result to the TNCS
+	 *
+	 * @param imv_id			ID of the IMV providing the recommendation
+	 * @param id				ID of target connection
+	 * @param rec				action recommendation
+	 * @param eval				evaluation result
+	 * @return					return code
+	 */
+	TNC_Result (*provide_recommendation)(tnccs_manager_t *this,
+										 TNC_IMVID imv_id,
+										 TNC_ConnectionID id,
+										 TNC_IMV_Action_Recommendation rec,
+										 TNC_IMV_Evaluation_Result eval);
+
+	/**
+	 * Get the value of an attribute associated with a connection or with the
+	 * TNCS as a whole.
+	 *
+	 * @param imv_id			ID of the IMV requesting the attribute
+	 * @param id				ID of target connection
+	 * @param attribute_id		ID of the requested attribute
+	 * @param buffer_len		length of the buffer in bytes
+	 * @param buffer			pointer to the buffer
+	 * @param out_value_len		actual length of the returned attribute
+	 * @return					return code
+	 */
+	TNC_Result (*get_attribute)(tnccs_manager_t *this,
+							   TNC_IMVID imv_id,
+							   TNC_ConnectionID id,
+							   TNC_AttributeID attribute_id,
+							   TNC_UInt32 buffer_len,
+							   TNC_BufferReference buffer,
+							   TNC_UInt32 *out_value_len);
+
+	/**
+	 * Set the value of an attribute associated with a connection or with the
+	 * TNCS as a whole.
+	 *
+	 * @param imv_id			ID of the IMV setting the attribute
+	 * @param id				ID of target connection
+	 * @param attribute_id		ID of the attribute to be set
+	 * @param buffer_len		length of the buffer in bytes
+	 * @param buffer			pointer to the buffer
+	 * @return					return code
+	 */
+	TNC_Result (*set_attribute)(tnccs_manager_t *this,
+								TNC_IMVID imv_id,
+								TNC_ConnectionID id,
+								TNC_AttributeID attribute_id,
+								TNC_UInt32 buffer_len,
+								TNC_BufferReference buffer);
+
+	/**
+	 * Destroy a tnccs_manager instance.
+	 */
+	void (*destroy)(tnccs_manager_t *this);
+};
+
+/**
+ * Helper function to (un-)register TNCCS methods from plugin features.
+ *
+ * This function is a plugin_feature_callback_t and can be used with the
+ * PLUGIN_CALLBACK macro to register a TNCCS method constructor.
+ *
+ * @param plugin		plugin registering the TNCCS method constructor
+ * @param feature		associated plugin feature
+ * @param reg			TRUE to register, FALSE to unregister.
+ * @param data			data passed to callback, a tnccs_constructor_t
+ */
+bool tnccs_method_register(plugin_t *plugin, plugin_feature_t *feature,
+						   bool reg, void *data);
+
+#endif /** TNCCS_MANAGER_H_ @}*/