Implemented SWID prototype IMC/IMV pair

src/libpts/plugins/imc_attestation/imc_attestation.c

@@ -29,8 +29,8 @@
 
 #include <pts/pts_error.h>
 
-#include <tcg/tcg_pts_attr_proto_caps.h>
-#include <tcg/tcg_pts_attr_meas_algo.h>
+#include <tcg/pts/tcg_pts_attr_proto_caps.h>
+#include <tcg/pts/tcg_pts_attr_meas_algo.h>
 
 #include <tncif_pa_subtypes.h>
 

src/libpts/plugins/imc_attestation/imc_attestation_process.c

@@ -25,23 +25,23 @@
 
 #include <pts/pts.h>
 
-#include <tcg/tcg_pts_attr_proto_caps.h>
-#include <tcg/tcg_pts_attr_meas_algo.h>
-#include <tcg/tcg_pts_attr_dh_nonce_params_req.h>
-#include <tcg/tcg_pts_attr_dh_nonce_params_resp.h>
-#include <tcg/tcg_pts_attr_dh_nonce_finish.h>
-#include <tcg/tcg_pts_attr_get_tpm_version_info.h>
-#include <tcg/tcg_pts_attr_tpm_version_info.h>
-#include <tcg/tcg_pts_attr_get_aik.h>
-#include <tcg/tcg_pts_attr_aik.h>
-#include <tcg/tcg_pts_attr_req_func_comp_evid.h>
-#include <tcg/tcg_pts_attr_gen_attest_evid.h>
-#include <tcg/tcg_pts_attr_simple_comp_evid.h>
-#include <tcg/tcg_pts_attr_simple_evid_final.h>
-#include <tcg/tcg_pts_attr_req_file_meas.h>
-#include <tcg/tcg_pts_attr_file_meas.h>
-#include <tcg/tcg_pts_attr_req_file_meta.h>
-#include <tcg/tcg_pts_attr_unix_file_meta.h>
+#include <tcg/pts/tcg_pts_attr_proto_caps.h>
+#include <tcg/pts/tcg_pts_attr_meas_algo.h>
+#include <tcg/pts/tcg_pts_attr_dh_nonce_params_req.h>
+#include <tcg/pts/tcg_pts_attr_dh_nonce_params_resp.h>
+#include <tcg/pts/tcg_pts_attr_dh_nonce_finish.h>
+#include <tcg/pts/tcg_pts_attr_get_tpm_version_info.h>
+#include <tcg/pts/tcg_pts_attr_tpm_version_info.h>
+#include <tcg/pts/tcg_pts_attr_get_aik.h>
+#include <tcg/pts/tcg_pts_attr_aik.h>
+#include <tcg/pts/tcg_pts_attr_req_func_comp_evid.h>
+#include <tcg/pts/tcg_pts_attr_gen_attest_evid.h>
+#include <tcg/pts/tcg_pts_attr_simple_comp_evid.h>
+#include <tcg/pts/tcg_pts_attr_simple_evid_final.h>
+#include <tcg/pts/tcg_pts_attr_req_file_meas.h>
+#include <tcg/pts/tcg_pts_attr_file_meas.h>
+#include <tcg/pts/tcg_pts_attr_req_file_meta.h>
+#include <tcg/pts/tcg_pts_attr_unix_file_meta.h>
 
 #include <utils/debug.h>
 #include <utils/lexparser.h>

src/libpts/plugins/imc_swid/Makefile.am

@@ -0,0 +1,19 @@
+AM_CPPFLAGS = \
+	-I$(top_srcdir)/src/libstrongswan \
+	-I$(top_srcdir)/src/libtncif \
+	-I$(top_srcdir)/src/libimcv \
+	-I$(top_srcdir)/src/libpts
+
+AM_CFLAGS = \
+	-rdynamic
+
+imcv_LTLIBRARIES = imc-swid.la
+
+imc_swid_la_LIBADD = \
+	$(top_builddir)/src/libimcv/libimcv.la \
+	$(top_builddir)/src/libpts/libpts.la \
+	$(top_builddir)/src/libstrongswan/libstrongswan.la
+
+imc_swid_la_SOURCES = imc_swid.c imc_swid_state.h imc_swid_state.c
+
+imc_swid_la_LDFLAGS = -module -avoid-version

src/libpts/plugins/imc_swid/imc_swid.c

@@ -0,0 +1,306 @@
+/*
+ * Copyright (C) 2013 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 "imc_swid_state.h"
+
+#include "libpts.h"
+#include "swid/swid_tag_id.h"
+#include "tcg/swid/tcg_swid_attr_req.h"
+#include "tcg/swid/tcg_swid_attr_tag_id_inv.h"
+
+#include <imc/imc_agent.h>
+#include <imc/imc_msg.h>
+
+#include <tncif_pa_subtypes.h>
+
+#include <pen/pen.h>
+#include <utils/debug.h>
+
+/* IMC definitions */
+
+static const char imc_name[] = "SWID";
+
+static pen_type_t msg_types[] = {
+	{ PEN_TCG, PA_SUBTYPE_TCG_SWID }
+};
+
+static imc_agent_t *imc_swid;
+
+/**
+ * see section 3.8.1 of TCG TNC IF-IMC Specification 1.3
+ */
+TNC_Result TNC_IMC_Initialize(TNC_IMCID imc_id,
+							  TNC_Version min_version,
+							  TNC_Version max_version,
+							  TNC_Version *actual_version)
+{
+	if (imc_swid)
+	{
+		DBG1(DBG_IMC, "IMC \"%s\" has already been initialized", imc_name);
+		return TNC_RESULT_ALREADY_INITIALIZED;
+	}
+	imc_swid = imc_agent_create(imc_name, msg_types, countof(msg_types),
+							  imc_id, actual_version);
+	if (!imc_swid)
+	{
+		return TNC_RESULT_FATAL;
+	}
+
+	libpts_init();
+
+	if (min_version > TNC_IFIMC_VERSION_1 || max_version < TNC_IFIMC_VERSION_1)
+	{
+		DBG1(DBG_IMC, "no common IF-IMC version");
+		return TNC_RESULT_NO_COMMON_VERSION;
+	}
+	return TNC_RESULT_SUCCESS;
+}
+
+/**
+ * see section 3.8.2 of TCG TNC IF-IMC Specification 1.3
+ */
+TNC_Result TNC_IMC_NotifyConnectionChange(TNC_IMCID imc_id,
+										  TNC_ConnectionID connection_id,
+										  TNC_ConnectionState new_state)
+{
+	imc_state_t *state;
+
+	if (!imc_swid)
+	{
+		DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
+		return TNC_RESULT_NOT_INITIALIZED;
+	}
+	switch (new_state)
+	{
+		case TNC_CONNECTION_STATE_CREATE:
+			state = imc_swid_state_create(connection_id);
+			return imc_swid->create_state(imc_swid, state);
+		case TNC_CONNECTION_STATE_HANDSHAKE:
+			if (imc_swid->change_state(imc_swid, connection_id, new_state,
+				&state) != TNC_RESULT_SUCCESS)
+			{
+				return TNC_RESULT_FATAL;
+			}
+			state->set_result(state, imc_id,
+							  TNC_IMV_EVALUATION_RESULT_DONT_KNOW);
+			return TNC_RESULT_SUCCESS;
+		case TNC_CONNECTION_STATE_DELETE:
+			return imc_swid->delete_state(imc_swid, connection_id);
+		default:
+			return imc_swid->change_state(imc_swid, connection_id,
+										  new_state, NULL);
+	}
+}
+
+/**
+ * see section 3.8.3 of TCG TNC IF-IMC Specification 1.3
+ */
+TNC_Result TNC_IMC_BeginHandshake(TNC_IMCID imc_id,
+								  TNC_ConnectionID connection_id)
+{
+	imc_state_t *state;
+
+	if (!imc_swid)
+	{
+		DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
+		return TNC_RESULT_NOT_INITIALIZED;
+	}
+	if (!imc_swid->get_state(imc_swid, connection_id, &state))
+	{
+		return TNC_RESULT_FATAL;
+	}
+
+	return TNC_RESULT_SUCCESS;
+}
+
+static TNC_Result receive_message(imc_state_t *state, imc_msg_t *in_msg)
+{
+	imc_msg_t *out_msg;
+	imc_swid_state_t *swid_state;
+	enumerator_t *enumerator;
+	pa_tnc_attr_t *attr;
+	pen_type_t type;
+	TNC_Result result;
+	bool fatal_error = FALSE;
+
+	/* parse received PA-TNC message and handle local and remote errors */
+	result = in_msg->receive(in_msg, &fatal_error);
+	if (result != TNC_RESULT_SUCCESS)
+	{
+		return result;
+	}
+	out_msg = imc_msg_create_as_reply(in_msg);
+	swid_state = (imc_swid_state_t*)state;
+
+	/* analyze PA-TNC attributes */
+	enumerator = in_msg->create_attribute_enumerator(in_msg);
+	while (enumerator->enumerate(enumerator, &attr))
+	{
+		tcg_swid_attr_req_t *attr_req;
+		tcg_swid_attr_tag_id_inv_t *attr_tag_id_inv;
+		swid_tag_id_t *tag_id;
+		u_int8_t flags;
+		u_int32_t request_id, eid_epoch;
+
+		type = attr->get_type(attr);
+
+		if (type.vendor_id != PEN_TCG || type.type != TCG_SWID_REQUEST)
+		{
+			continue;
+		}
+
+		attr_req = (tcg_swid_attr_req_t*)attr;
+		flags = attr_req->get_flags(attr_req);
+		request_id = attr_req->get_request_id(attr_req);
+		if (flags & TCG_SWID_ATTR_REQ_FLAG_R)
+		{
+			eid_epoch = swid_state->get_eid_epoch(swid_state);
+			attr = tcg_swid_attr_tag_id_inv_create(request_id, eid_epoch, 1);
+			attr_tag_id_inv = (tcg_swid_attr_tag_id_inv_t*)attr;
+			tag_id = swid_tag_id_create(
+						chunk_from_str("regid.2004-03.org.strongswan"),
+						chunk_from_str("strongSwan-5-1-0"),
+						chunk_empty);
+			attr_tag_id_inv->add_tag_id(attr_tag_id_inv, tag_id);
+			out_msg->add_attribute(out_msg, attr);
+		}
+	}
+	enumerator->destroy(enumerator);
+
+	if (fatal_error)
+	{
+		result = TNC_RESULT_FATAL;
+	}
+	else
+	{
+		result = out_msg->send(out_msg, TRUE);
+	}
+	out_msg->destroy(out_msg);
+
+	return result;
+}
+
+/**
+ * see section 3.8.4 of TCG TNC IF-IMC Specification 1.3
+
+ */
+TNC_Result TNC_IMC_ReceiveMessage(TNC_IMCID imc_id,
+								  TNC_ConnectionID connection_id,
+								  TNC_BufferReference msg,
+								  TNC_UInt32 msg_len,
+								  TNC_MessageType msg_type)
+{
+	imc_state_t *state;
+	imc_msg_t *in_msg;
+	TNC_Result result;
+
+	if (!imc_swid)
+	{
+		DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
+		return TNC_RESULT_NOT_INITIALIZED;
+	}
+	if (!imc_swid->get_state(imc_swid, connection_id, &state))
+	{
+		return TNC_RESULT_FATAL;
+	}
+	in_msg = imc_msg_create_from_data(imc_swid, state, connection_id, msg_type,
+									  chunk_create(msg, msg_len));
+	result = receive_message(state, in_msg);
+	in_msg->destroy(in_msg);
+
+	return result;
+}
+
+/**
+ * see section 3.8.6 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMC_ReceiveMessageLong(TNC_IMCID imc_id,
+									  TNC_ConnectionID connection_id,
+									  TNC_UInt32 msg_flags,
+									  TNC_BufferReference msg,
+									  TNC_UInt32 msg_len,
+									  TNC_VendorID msg_vid,
+									  TNC_MessageSubtype msg_subtype,
+									  TNC_UInt32 src_imv_id,
+									  TNC_UInt32 dst_imc_id)
+{
+	imc_state_t *state;
+	imc_msg_t *in_msg;
+	TNC_Result result;
+
+	if (!imc_swid)
+	{
+		DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
+		return TNC_RESULT_NOT_INITIALIZED;
+	}
+	if (!imc_swid->get_state(imc_swid, connection_id, &state))
+	{
+		return TNC_RESULT_FATAL;
+	}
+	in_msg = imc_msg_create_from_long_data(imc_swid, state, connection_id,
+								src_imv_id, dst_imc_id,msg_vid, msg_subtype,
+								chunk_create(msg, msg_len));
+	result =receive_message(state, in_msg);
+	in_msg->destroy(in_msg);
+
+	return result;
+}
+
+/**
+ * see section 3.8.7 of TCG TNC IF-IMC Specification 1.3
+ */
+TNC_Result TNC_IMC_BatchEnding(TNC_IMCID imc_id,
+							   TNC_ConnectionID connection_id)
+{
+	if (!imc_swid)
+	{
+		DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
+		return TNC_RESULT_NOT_INITIALIZED;
+	}
+	return TNC_RESULT_SUCCESS;
+}
+
+/**
+ * see section 3.8.8 of TCG TNC IF-IMC Specification 1.3
+ */
+TNC_Result TNC_IMC_Terminate(TNC_IMCID imc_id)
+{
+	if (!imc_swid)
+	{
+		DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
+		return TNC_RESULT_NOT_INITIALIZED;
+	}
+
+	libpts_deinit();
+
+	imc_swid->destroy(imc_swid);
+	imc_swid = NULL;
+
+	return TNC_RESULT_SUCCESS;
+}
+
+/**
+ * see section 4.2.8.1 of TCG TNC IF-IMC Specification 1.3
+ */
+TNC_Result TNC_IMC_ProvideBindFunction(TNC_IMCID imc_id,
+									   TNC_TNCC_BindFunctionPointer bind_function)
+{
+	if (!imc_swid)
+	{
+		DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
+		return TNC_RESULT_NOT_INITIALIZED;
+	}
+	return imc_swid->bind_functions(imc_swid, bind_function);
+}

src/libpts/plugins/imc_swid/imc_swid_state.c

@@ -0,0 +1,189 @@
+/*
+ * Copyright (C) 2013 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 "imc_swid_state.h"
+
+#include <tncif_names.h>
+
+#include <utils/debug.h>
+
+typedef struct private_imc_swid_state_t private_imc_swid_state_t;
+
+/**
+ * Private data of an imc_swid_state_t object.
+ */
+struct private_imc_swid_state_t {
+
+	/**
+	 * Public members of imc_swid_state_t
+	 */
+	imc_swid_state_t public;
+
+	/**
+	 * TNCCS connection ID
+	 */
+	TNC_ConnectionID connection_id;
+
+	/**
+	 * TNCCS connection state
+	 */
+	TNC_ConnectionState state;
+
+	/**
+	 * Assessment/Evaluation Result
+	 */
+	TNC_IMV_Evaluation_Result result;
+
+	/**
+	 * Does the TNCCS connection support long message types?
+	 */
+	bool has_long;
+
+	/**
+	 * Does the TNCCS connection support exclusive delivery?
+	 */
+	bool has_excl;
+
+	/**
+	 * Maximum PA-TNC message size for this TNCCS connection
+	 */
+	u_int32_t max_msg_len;
+
+	/**
+	 * Event ID Epoch
+	 */
+	u_int32_t eid_epoch;
+};
+
+METHOD(imc_state_t, get_connection_id, TNC_ConnectionID,
+	private_imc_swid_state_t *this)
+{
+	return this->connection_id;
+}
+
+METHOD(imc_state_t, has_long, bool,
+	private_imc_swid_state_t *this)
+{
+	return this->has_long;
+}
+
+METHOD(imc_state_t, has_excl, bool,
+	private_imc_swid_state_t *this)
+{
+	return this->has_excl;
+}
+
+METHOD(imc_state_t, set_flags, void,
+	private_imc_swid_state_t *this, bool has_long, bool has_excl)
+{
+	this->has_long = has_long;
+	this->has_excl = has_excl;
+}
+
+METHOD(imc_state_t, set_max_msg_len, void,
+	private_imc_swid_state_t *this, u_int32_t max_msg_len)
+{
+	this->max_msg_len = max_msg_len;
+}
+
+METHOD(imc_state_t, get_max_msg_len, u_int32_t,
+	private_imc_swid_state_t *this)
+{
+	return this->max_msg_len;
+}
+
+METHOD(imc_state_t, change_state, void,
+	private_imc_swid_state_t *this, TNC_ConnectionState new_state)
+{
+	this->state = new_state;
+}
+
+METHOD(imc_state_t, set_result, void,
+	private_imc_swid_state_t *this, TNC_IMCID id,
+	TNC_IMV_Evaluation_Result result)
+{
+	this->result = result;
+}
+
+METHOD(imc_state_t, get_result, bool,
+	private_imc_swid_state_t *this, TNC_IMCID id,
+	TNC_IMV_Evaluation_Result *result)
+{
+	if (result)
+	{
+		*result = this->result;
+	}
+	return this->result != TNC_IMV_EVALUATION_RESULT_DONT_KNOW;
+}
+
+METHOD(imc_state_t, destroy, void,
+	private_imc_swid_state_t *this)
+{
+	free(this);
+}
+
+METHOD(imc_swid_state_t, get_eid_epoch, u_int32_t,
+	private_imc_swid_state_t *this)
+{
+	return this->eid_epoch;
+}
+
+/**
+ * Described in header.
+ */
+imc_state_t *imc_swid_state_create(TNC_ConnectionID connection_id)
+{
+	private_imc_swid_state_t *this;
+	u_int32_t eid_epoch;
+	nonce_gen_t *ng;
+
+	ng = lib->crypto->create_nonce_gen(lib->crypto);
+	if (!ng || !ng->get_nonce(ng, 4, (u_int8_t*)&eid_epoch))
+	{
+		DBG1(DBG_TNC, "failed to generate random EID epoch value");
+		DESTROY_IF(ng);
+		return NULL;
+	}
+	ng->destroy(ng);
+
+	DBG1(DBG_IMC, "creating random EID epoch 0x%08x", eid_epoch);
+
+	INIT(this,
+		.public = {
+			.interface = {
+				.get_connection_id = _get_connection_id,
+				.has_long = _has_long,
+				.has_excl = _has_excl,
+				.set_flags = _set_flags,
+				.set_max_msg_len = _set_max_msg_len,
+				.get_max_msg_len = _get_max_msg_len,
+				.change_state = _change_state,
+				.set_result = _set_result,
+				.get_result = _get_result,
+				.destroy = _destroy,
+			},
+			.get_eid_epoch = _get_eid_epoch,
+		},
+		.state = TNC_CONNECTION_STATE_CREATE,
+		.result = TNC_IMV_EVALUATION_RESULT_DONT_KNOW,
+		.connection_id = connection_id,
+		.eid_epoch = eid_epoch,
+	);
+
+	
+	return &this->public.interface;
+}
+
+

src/libpts/plugins/imc_swid/imc_swid_state.h

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2013 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 imc_swid imc_swid
+ * @ingroup libimcv_plugins
+ *
+ * @defgroup imc_swid_state_t imc_swid_state
+ * @{ @ingroup imc_swid
+ */
+
+#ifndef IMC_SWID_STATE_H_
+#define IMC_SWID_STATE_H_
+
+#include <imc/imc_state.h>
+#include <library.h>
+
+typedef struct imc_swid_state_t imc_swid_state_t;
+
+/**
+ * Internal state of an imc_swid_t connection instance
+ */
+struct imc_swid_state_t {
+
+	/**
+	 * imc_state_t interface
+	 */
+	imc_state_t interface;
+
+	/**
+	 * Get Event ID Epoch
+	 *
+	 * @return			Event ID Epoch
+	 */
+	u_int32_t (*get_eid_epoch)(imc_swid_state_t *this);
+
+};
+
+/**
+ * Create an imc_swid_state_t instance
+ *
+ * @param id		connection ID
+ */
+imc_state_t* imc_swid_state_create(TNC_ConnectionID id);
+
+#endif /** IMC_SWID_STATE_H_ @}*/

src/libpts/plugins/imv_attestation/imv_attestation_agent.c

@@ -35,8 +35,8 @@
 #include <pts/pts_creds.h>
 
 #include <tcg/tcg_attr.h>
-#include <tcg/tcg_pts_attr_req_file_meas.h>
-#include <tcg/tcg_pts_attr_req_file_meta.h>
+#include <tcg/pts/tcg_pts_attr_req_file_meas.h>
+#include <tcg/pts/tcg_pts_attr_req_file_meta.h>
 
 #include <tncif_pa_subtypes.h>
 

src/libpts/plugins/imv_attestation/imv_attestation_build.c

@@ -16,14 +16,14 @@
 #include "imv_attestation_build.h"
 #include "imv_attestation_state.h"
 
-#include <tcg/tcg_pts_attr_proto_caps.h>
-#include <tcg/tcg_pts_attr_meas_algo.h>
-#include <tcg/tcg_pts_attr_dh_nonce_params_req.h>
-#include <tcg/tcg_pts_attr_dh_nonce_finish.h>
-#include <tcg/tcg_pts_attr_get_tpm_version_info.h>
-#include <tcg/tcg_pts_attr_get_aik.h>
-#include <tcg/tcg_pts_attr_req_func_comp_evid.h>
-#include <tcg/tcg_pts_attr_gen_attest_evid.h>
+#include <tcg/pts/tcg_pts_attr_proto_caps.h>
+#include <tcg/pts/tcg_pts_attr_meas_algo.h>
+#include <tcg/pts/tcg_pts_attr_dh_nonce_params_req.h>
+#include <tcg/pts/tcg_pts_attr_dh_nonce_finish.h>
+#include <tcg/pts/tcg_pts_attr_get_tpm_version_info.h>
+#include <tcg/pts/tcg_pts_attr_get_aik.h>
+#include <tcg/pts/tcg_pts_attr_req_func_comp_evid.h>
+#include <tcg/pts/tcg_pts_attr_gen_attest_evid.h>
 
 #include <utils/debug.h>
 

src/libpts/plugins/imv_attestation/imv_attestation_process.c

@@ -20,15 +20,15 @@
 
 #include <pts/pts.h>
 
-#include <tcg/tcg_pts_attr_aik.h>
-#include <tcg/tcg_pts_attr_dh_nonce_params_resp.h>
-#include <tcg/tcg_pts_attr_file_meas.h>
-#include <tcg/tcg_pts_attr_meas_algo.h>
-#include <tcg/tcg_pts_attr_proto_caps.h>
-#include <tcg/tcg_pts_attr_simple_comp_evid.h>
-#include <tcg/tcg_pts_attr_simple_evid_final.h>
-#include <tcg/tcg_pts_attr_tpm_version_info.h>
-#include <tcg/tcg_pts_attr_unix_file_meta.h>
+#include <tcg/pts/tcg_pts_attr_aik.h>
+#include <tcg/pts/tcg_pts_attr_dh_nonce_params_resp.h>
+#include <tcg/pts/tcg_pts_attr_file_meas.h>
+#include <tcg/pts/tcg_pts_attr_meas_algo.h>
+#include <tcg/pts/tcg_pts_attr_proto_caps.h>
+#include <tcg/pts/tcg_pts_attr_simple_comp_evid.h>
+#include <tcg/pts/tcg_pts_attr_simple_evid_final.h>
+#include <tcg/pts/tcg_pts_attr_tpm_version_info.h>
+#include <tcg/pts/tcg_pts_attr_unix_file_meta.h>
 
 #include <utils/debug.h>
 #include <crypto/hashers/hasher.h>

src/libpts/plugins/imv_swid/Makefile.am

@@ -0,0 +1,21 @@
+AM_CPPFLAGS = \
+	-I$(top_srcdir)/src/libstrongswan \
+	-I$(top_srcdir)/src/libtncif \
+	-I$(top_srcdir)/src/libimcv \
+	-I$(top_srcdir)/src/libpts
+
+AM_CFLAGS = \
+	-rdynamic
+
+imcv_LTLIBRARIES = imv-swid.la
+
+imv_swid_la_LIBADD = \
+	$(top_builddir)/src/libimcv/libimcv.la \
+	$(top_builddir)/src/libpts/libpts.la \
+	$(top_builddir)/src/libstrongswan/libstrongswan.la
+
+imv_swid_la_SOURCES = \
+	imv_swid.c imv_swid_state.h imv_swid_state.c \
+	imv_swid_agent.h imv_swid_agent.c
+
+imv_swid_la_LDFLAGS = -module -avoid-version

src/libpts/plugins/imv_swid/imv_swid.c

@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2013 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 "imv_swid_agent.h"
+
+static const char imv_name[] = "SWID";
+static const imv_agent_create_t imv_agent_create = imv_swid_agent_create;
+
+/* include generic TGC TNC IF-IMV API code below */
+
+#include <imv/imv_if.h>
+

src/libpts/plugins/imv_swid/imv_swid_agent.c

@@ -0,0 +1,425 @@
+/*
+ * Copyright (C) 2013 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 "imv_swid_agent.h"
+#include "imv_swid_state.h"
+
+#include "libpts.h"
+#include "tcg/swid/tcg_swid_attr_req.h"
+#include "tcg/swid/tcg_swid_attr_tag_id_inv.h"
+
+#include <imcv.h>
+#include <imv/imv_agent.h>
+#include <imv/imv_msg.h>
+
+#include <tncif_names.h>
+#include <tncif_pa_subtypes.h>
+
+#include <pen/pen.h>
+#include <utils/debug.h>
+
+typedef struct private_imv_swid_agent_t private_imv_swid_agent_t;
+
+/* Subscribed PA-TNC message subtypes */
+static pen_type_t msg_types[] = {
+	{ PEN_TCG, PA_SUBTYPE_TCG_SWID }
+};
+
+/**
+ * Private data of an imv_swid_agent_t object.
+ */
+struct private_imv_swid_agent_t {
+
+	/**
+	 * Public members of imv_swid_agent_t
+	 */
+	imv_agent_if_t public;
+
+	/**
+	 * IMV agent responsible for generic functions
+	 */
+	imv_agent_t *agent;
+
+};
+
+METHOD(imv_agent_if_t, bind_functions, TNC_Result,
+	private_imv_swid_agent_t *this, TNC_TNCS_BindFunctionPointer bind_function)
+{
+	return this->agent->bind_functions(this->agent, bind_function);
+}
+
+METHOD(imv_agent_if_t, notify_connection_change, TNC_Result,
+	private_imv_swid_agent_t *this, TNC_ConnectionID id,
+	TNC_ConnectionState new_state)
+{
+	imv_state_t *state;
+
+	switch (new_state)
+	{
+		case TNC_CONNECTION_STATE_CREATE:
+			state = imv_swid_state_create(id);
+			return this->agent->create_state(this->agent, state);
+		case TNC_CONNECTION_STATE_DELETE:
+			return this->agent->delete_state(this->agent, id);
+		default:
+			return this->agent->change_state(this->agent, id, new_state, NULL);
+	}
+}
+
+/**
+ * Process a received message
+ */
+static TNC_Result receive_msg(private_imv_swid_agent_t *this,
+							  imv_state_t *state, imv_msg_t *in_msg)
+{
+	imv_msg_t *out_msg;
+	imv_session_t *session;
+	imv_workitem_t *workitem, *found = NULL;
+	enumerator_t *enumerator;
+	pa_tnc_attr_t *attr;
+	pen_type_t type;
+	TNC_IMV_Evaluation_Result eval;
+	TNC_IMV_Action_Recommendation rec;
+	TNC_Result result;
+	char *result_str;
+	bool fatal_error = FALSE;
+
+	/* parse received PA-TNC message and handle local and remote errors */
+	result = in_msg->receive(in_msg, &fatal_error);
+	if (result != TNC_RESULT_SUCCESS)
+	{
+		return result;
+	}
+
+	session = state->get_session(state);
+
+	/* analyze PA-TNC attributes */
+	enumerator = in_msg->create_attribute_enumerator(in_msg);
+	while (enumerator->enumerate(enumerator, &attr))
+	{
+		type = attr->get_type(attr);
+
+		if (type.vendor_id != PEN_TCG)
+		{
+			continue;
+		}
+		switch (type.type)
+		{
+			case TCG_SWID_TAG_ID_INVENTORY:
+			{
+				tcg_swid_attr_tag_id_inv_t *attr_cast;
+				u_int32_t request_id;
+				swid_tag_id_t *tag_id;
+				chunk_t tag_creator, unique_sw_id;
+				enumerator_t *et, *ew;
+
+				attr_cast = (tcg_swid_attr_tag_id_inv_t*)attr;
+				request_id = attr_cast->get_request_id(attr_cast);
+
+				DBG2(DBG_IMV, "received SWID tag ID inventory for request %d",
+							   request_id);
+				et = attr_cast->create_tag_id_enumerator(attr_cast);
+				while (et->enumerate(et, &tag_id))
+				{
+					tag_creator = tag_id->get_tag_creator(tag_id);
+					unique_sw_id = tag_id->get_unique_sw_id(tag_id, NULL);
+					DBG3(DBG_IMV, "  %.*s_%.*s.swidtag",
+						 tag_creator.len, tag_creator.ptr,
+						 unique_sw_id.len, unique_sw_id.ptr);
+				}
+				et->destroy(et);
+
+				if (request_id == 0)
+				{
+					/* TODO handle subscribed messages */
+					break;
+				}
+
+				ew = session->create_workitem_enumerator(session);
+				while (ew->enumerate(ew, &workitem))
+				{
+					if (workitem->get_id(workitem) == request_id)
+					{
+						found = workitem;
+						break;
+					}
+				}
+
+				if (!found)
+				{
+					DBG1(DBG_IMV, "no workitem found for SWID tag ID inventory "
+								  "with request ID %d", request_id);
+					ew->destroy(ew);
+					break;
+				}
+
+				eval = TNC_IMV_EVALUATION_RESULT_COMPLIANT;
+				result_str = "received SWID tag ID inventory";
+				session->remove_workitem(session, ew);
+				ew->destroy(ew);
+				rec = found->set_result(found, result_str, eval);
+				state->update_recommendation(state, rec, eval);
+				imcv_db->finalize_workitem(imcv_db, found);
+				found->destroy(found);
+				break;
+			}
+			case TCG_SWID_TAG_INVENTORY:
+				break;
+			default:
+				break;
+ 		}
+	}
+	enumerator->destroy(enumerator);
+
+	if (fatal_error)
+	{
+		state->set_recommendation(state,
+								TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION,
+								TNC_IMV_EVALUATION_RESULT_ERROR);
+		out_msg = imv_msg_create_as_reply(in_msg);
+		result = out_msg->send_assessment(out_msg);
+		out_msg->destroy(out_msg);
+		if (result != TNC_RESULT_SUCCESS)
+		{
+			return result;
+		}
+		return this->agent->provide_recommendation(this->agent, state);
+	}
+
+	return TNC_RESULT_SUCCESS;
+}
+
+METHOD(imv_agent_if_t, receive_message, TNC_Result,
+	private_imv_swid_agent_t *this, TNC_ConnectionID id,
+	TNC_MessageType msg_type, chunk_t msg)
+{
+	imv_state_t *state;
+	imv_msg_t *in_msg;
+	TNC_Result result;
+
+	if (!this->agent->get_state(this->agent, id, &state))
+	{
+		return TNC_RESULT_FATAL;
+	}
+	in_msg = imv_msg_create_from_data(this->agent, state, id, msg_type, msg);
+	result = receive_msg(this, state, in_msg);
+	in_msg->destroy(in_msg);
+
+	return result;
+}
+
+METHOD(imv_agent_if_t, receive_message_long, TNC_Result,
+	private_imv_swid_agent_t *this, TNC_ConnectionID id,
+	TNC_UInt32 src_imc_id, TNC_UInt32 dst_imv_id,
+	TNC_VendorID msg_vid, TNC_MessageSubtype msg_subtype, chunk_t msg)
+{
+	imv_state_t *state;
+	imv_msg_t *in_msg;
+	TNC_Result result;
+
+	if (!this->agent->get_state(this->agent, id, &state))
+	{
+		return TNC_RESULT_FATAL;
+	}
+	in_msg = imv_msg_create_from_long_data(this->agent, state, id,
+					src_imc_id, dst_imv_id, msg_vid, msg_subtype, msg);
+	result = receive_msg(this, state, in_msg);
+	in_msg->destroy(in_msg);
+
+	return result;
+
+}
+
+METHOD(imv_agent_if_t, batch_ending, TNC_Result,
+	private_imv_swid_agent_t *this, TNC_ConnectionID id)
+{
+	imv_msg_t *out_msg;
+	imv_state_t *state;
+	imv_session_t *session;
+	imv_workitem_t *workitem;
+	imv_swid_state_t *swid_state;
+	imv_swid_handshake_state_t handshake_state;
+	pa_tnc_attr_t *attr;
+	TNC_IMVID imv_id;
+	TNC_Result result = TNC_RESULT_SUCCESS;
+	bool no_workitems = TRUE;
+	u_int32_t request_id;
+	u_int8_t flags;
+	enumerator_t *enumerator;
+
+	if (!this->agent->get_state(this->agent, id, &state))
+	{
+		return TNC_RESULT_FATAL;
+	}
+	swid_state = (imv_swid_state_t*)state;
+	handshake_state = swid_state->get_handshake_state(swid_state);
+	session = state->get_session(state);
+	imv_id = this->agent->get_id(this->agent);
+
+	if (handshake_state == IMV_SWID_STATE_END)
+	{
+		return TNC_RESULT_SUCCESS;
+	}
+
+	/* create an empty out message - we might need it */
+	out_msg = imv_msg_create(this->agent, state, id, imv_id, TNC_IMCID_ANY,
+							 msg_types[0]);
+
+	if (!session)
+	{
+		DBG2(DBG_IMV, "no workitems available - no evaluation possible");
+		state->set_recommendation(state,
+							TNC_IMV_ACTION_RECOMMENDATION_ALLOW,
+							TNC_IMV_EVALUATION_RESULT_DONT_KNOW);
+		result = out_msg->send_assessment(out_msg);
+		out_msg->destroy(out_msg);
+		swid_state->set_handshake_state(swid_state, IMV_SWID_STATE_END);
+
+		if (result != TNC_RESULT_SUCCESS)
+		{
+			return result;
+		}
+		return this->agent->provide_recommendation(this->agent, state);
+	}
+
+	if (handshake_state == IMV_SWID_STATE_INIT)
+	{
+		enumerator = session->create_workitem_enumerator(session);
+		if (enumerator)
+		{
+			while (enumerator->enumerate(enumerator, &workitem))
+			{
+				if (workitem->get_imv_id(workitem) != TNC_IMVID_ANY ||
+					workitem->get_type(workitem) != IMV_WORKITEM_SWID_TAGS)
+				{
+					continue;
+				}
+				
+				flags = TCG_SWID_ATTR_REQ_FLAG_NONE;
+				if (strchr(workitem->get_arg_str(workitem), 'R'))
+				{
+					flags |= TCG_SWID_ATTR_REQ_FLAG_R;
+				}
+				if (strchr(workitem->get_arg_str(workitem), 'S'))
+				{
+					flags |= TCG_SWID_ATTR_REQ_FLAG_S;
+				}
+				if (strchr(workitem->get_arg_str(workitem), 'C'))
+				{
+					flags |= TCG_SWID_ATTR_REQ_FLAG_C;
+				}
+				request_id = workitem->get_id(workitem);
+
+				DBG2(DBG_IMV, "IMV %d issues SWID tag request %d",
+						 imv_id, request_id);
+				attr = tcg_swid_attr_req_create(flags, request_id, 0);
+				out_msg->add_attribute(out_msg, attr);
+				workitem->set_imv_id(workitem, imv_id);
+				no_workitems = FALSE;
+			}
+			enumerator->destroy(enumerator);
+
+			if (no_workitems)
+			{
+				DBG2(DBG_IMV, "IMV %d has no workitems - "
+							  "no evaluation requested", imv_id);
+				state->set_recommendation(state,
+								TNC_IMV_ACTION_RECOMMENDATION_ALLOW,
+								TNC_IMV_EVALUATION_RESULT_DONT_KNOW);
+			}
+			handshake_state = IMV_SWID_STATE_WORKITEMS;
+			swid_state->set_handshake_state(swid_state, handshake_state);
+		}
+	}
+
+	/* finalized all workitems ? */
+	if (handshake_state == IMV_SWID_STATE_WORKITEMS &&
+		session->get_workitem_count(session, imv_id) == 0)
+	{
+		result = out_msg->send_assessment(out_msg);
+		out_msg->destroy(out_msg);
+		swid_state->set_handshake_state(swid_state, IMV_SWID_STATE_END);
+
+		if (result != TNC_RESULT_SUCCESS)
+		{
+			return result;
+		}
+		return this->agent->provide_recommendation(this->agent, state);
+	}
+
+	/* send non-empty PA-TNC message with excl flag not set */
+	if (out_msg->get_attribute_count(out_msg))
+	{
+		result = out_msg->send(out_msg, FALSE);
+	}
+	out_msg->destroy(out_msg);
+
+	return result;
+}
+
+METHOD(imv_agent_if_t, solicit_recommendation, TNC_Result,
+	private_imv_swid_agent_t *this, TNC_ConnectionID id)
+{
+	imv_state_t *state;
+
+	if (!this->agent->get_state(this->agent, id, &state))
+	{
+		return TNC_RESULT_FATAL;
+	}
+	return this->agent->provide_recommendation(this->agent, state);
+}
+
+METHOD(imv_agent_if_t, destroy, void,
+	private_imv_swid_agent_t *this)
+{
+	this->agent->destroy(this->agent);
+	free(this);
+	libpts_deinit();
+}
+
+/**
+ * Described in header.
+ */
+imv_agent_if_t *imv_swid_agent_create(const char *name, TNC_IMVID id,
+										 TNC_Version *actual_version)
+{
+	private_imv_swid_agent_t *this;
+	imv_agent_t *agent;
+
+	agent = imv_agent_create(name, msg_types, countof(msg_types), id,
+							 actual_version);
+	if (!agent)
+	{
+		return NULL;
+	}
+
+	INIT(this,
+		.public = {
+			.bind_functions = _bind_functions,
+			.notify_connection_change = _notify_connection_change,
+			.receive_message = _receive_message,
+			.receive_message_long = _receive_message_long,
+			.batch_ending = _batch_ending,
+			.solicit_recommendation = _solicit_recommendation,
+			.destroy = _destroy,
+		},
+		.agent = agent,
+	);
+
+	libpts_init();
+
+	return &this->public;
+}
+

src/libpts/plugins/imv_swid/imv_swid_agent.h

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2013 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_swid_agent_t imv_swid_agent
+ * @{ @ingroup imv_swid
+ */
+
+#ifndef IMV_SWID_AGENT_H_
+#define IMV_SWID_AGENT_H_
+
+#include <imv/imv_agent_if.h>
+
+/**
+ * Creates an SWID IMV agent
+ *
+ * @param name					Name of the IMV
+ * @param id					ID of the IMV
+ * @param actual_version		TNC IF-IMV version
+ */
+imv_agent_if_t* imv_swid_agent_create(const char* name, TNC_IMVID id,
+									  TNC_Version *actual_version);
+
+#endif /** IMV_SWID_AGENT_H_ @}*/

src/libpts/plugins/imv_swid/imv_swid_state.c

@@ -0,0 +1,296 @@
+/*
+ * Copyright (C) 2013 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 "imv_swid_state.h"
+#include "imv/imv_lang_string.h"
+#include "imv/imv_reason_string.h"
+#include "imv/imv_remediation_string.h"
+
+#include <tncif_policy.h>
+
+#include <utils/lexparser.h>
+#include <utils/debug.h>
+
+typedef struct private_imv_swid_state_t private_imv_swid_state_t;
+
+/**
+ * Private data of an imv_swid_state_t object.
+ */
+struct private_imv_swid_state_t {
+
+	/**
+	 * Public members of imv_swid_state_t
+	 */
+	imv_swid_state_t public;
+
+	/**
+	 * TNCCS connection ID
+	 */
+	TNC_ConnectionID connection_id;
+
+	/**
+	 * TNCCS connection state
+	 */
+	TNC_ConnectionState state;
+
+	/**
+	 * Does the TNCCS connection support long message types?
+	 */
+	bool has_long;
+
+	/**
+	 * Does the TNCCS connection support exclusive delivery?
+	 */
+	bool has_excl;
+
+	/**
+	 * Maximum PA-TNC message size for this TNCCS connection
+	 */
+	u_int32_t max_msg_len;
+
+	/**
+	 * Flags set for completed actions
+	 */
+	u_int32_t action_flags;
+
+	/**
+	 * Access Requestor ID Type
+	 */
+	u_int32_t ar_id_type;
+
+	/**
+	 * Access Requestor ID Value
+	 */
+	chunk_t ar_id_value;
+
+	/**
+	 * IMV database session associatied with TNCCS connection
+	 */
+	imv_session_t *session;
+
+	/**
+	 * IMV action recommendation
+	 */
+	TNC_IMV_Action_Recommendation rec;
+
+	/**
+	 * IMV evaluation result
+	 */
+	TNC_IMV_Evaluation_Result eval;
+
+	/**
+	 * IMV Scanner handshake state
+	 */
+	imv_swid_handshake_state_t handshake_state;
+
+	/**
+	 * TNC Reason String
+	 */
+	imv_reason_string_t *reason_string;
+
+	/**
+	 * IETF Remediation Instructions String
+	 */
+	imv_remediation_string_t *remediation_string;
+
+};
+
+METHOD(imv_state_t, get_connection_id, TNC_ConnectionID,
+	private_imv_swid_state_t *this)
+{
+	return this->connection_id;
+}
+
+METHOD(imv_state_t, has_long, bool,
+	private_imv_swid_state_t *this)
+{
+	return this->has_long;
+}
+
+METHOD(imv_state_t, has_excl, bool,
+	private_imv_swid_state_t *this)
+{
+	return this->has_excl;
+}
+
+METHOD(imv_state_t, set_flags, void,
+	private_imv_swid_state_t *this, bool has_long, bool has_excl)
+{
+	this->has_long = has_long;
+	this->has_excl = has_excl;
+}
+
+METHOD(imv_state_t, set_max_msg_len, void,
+	private_imv_swid_state_t *this, u_int32_t max_msg_len)
+{
+	this->max_msg_len = max_msg_len;
+}
+
+METHOD(imv_state_t, get_max_msg_len, u_int32_t,
+	private_imv_swid_state_t *this)
+{
+	return this->max_msg_len;
+}
+
+METHOD(imv_state_t, set_action_flags, void,
+	private_imv_swid_state_t *this, u_int32_t flags)
+{
+	this->action_flags |= flags;
+}
+
+METHOD(imv_state_t, get_action_flags, u_int32_t,
+	private_imv_swid_state_t *this)
+{
+	return this->action_flags;
+}
+
+METHOD(imv_state_t, set_ar_id, void,
+	private_imv_swid_state_t *this, u_int32_t id_type, chunk_t id_value)
+{
+	this->ar_id_type = id_type;
+	this->ar_id_value = chunk_clone(id_value);
+}
+
+METHOD(imv_state_t, get_ar_id, chunk_t,
+	private_imv_swid_state_t *this, u_int32_t *id_type)
+{
+	if (id_type)
+	{
+		*id_type = this->ar_id_type;
+	}
+	return this->ar_id_value;
+}
+
+METHOD(imv_state_t, set_session, void,
+	private_imv_swid_state_t *this, imv_session_t *session)
+{
+	this->session = session;
+}
+
+METHOD(imv_state_t, get_session, imv_session_t*,
+	private_imv_swid_state_t *this)
+{
+	return this->session;
+}
+
+METHOD(imv_state_t, change_state, void,
+	private_imv_swid_state_t *this, TNC_ConnectionState new_state)
+{
+	this->state = new_state;
+}
+
+METHOD(imv_state_t, get_recommendation, void,
+	private_imv_swid_state_t *this, TNC_IMV_Action_Recommendation *rec,
+									   TNC_IMV_Evaluation_Result *eval)
+{
+	*rec = this->rec;
+	*eval = this->eval;
+}
+
+METHOD(imv_state_t, set_recommendation, void,
+	private_imv_swid_state_t *this, TNC_IMV_Action_Recommendation rec,
+									   TNC_IMV_Evaluation_Result eval)
+{
+	this->rec = rec;
+	this->eval = eval;
+}
+
+METHOD(imv_state_t, update_recommendation, void,
+	private_imv_swid_state_t *this, TNC_IMV_Action_Recommendation rec,
+									   TNC_IMV_Evaluation_Result eval)
+{
+	this->rec  = tncif_policy_update_recommendation(this->rec, rec);
+	this->eval = tncif_policy_update_evaluation(this->eval, eval);
+}
+
+METHOD(imv_state_t, get_reason_string, bool,
+	private_imv_swid_state_t *this, enumerator_t *language_enumerator,
+	chunk_t *reason_string, char **reason_language)
+{
+	return FALSE;
+}
+
+METHOD(imv_state_t, get_remediation_instructions, bool,
+	private_imv_swid_state_t *this, enumerator_t *language_enumerator,
+	chunk_t *string, char **lang_code, char **uri)
+{
+	return FALSE;
+}
+
+METHOD(imv_state_t, destroy, void,
+	private_imv_swid_state_t *this)
+{
+	DESTROY_IF(this->session);
+	DESTROY_IF(this->reason_string);
+	DESTROY_IF(this->remediation_string);
+	free(this->ar_id_value.ptr);
+	free(this);
+}
+
+METHOD(imv_swid_state_t, set_handshake_state, void,
+	private_imv_swid_state_t *this, imv_swid_handshake_state_t new_state)
+{
+	this->handshake_state = new_state;
+}
+
+METHOD(imv_swid_state_t, get_handshake_state, imv_swid_handshake_state_t,
+	private_imv_swid_state_t *this)
+{
+	return this->handshake_state;
+}
+
+/**
+ * Described in header.
+ */
+imv_state_t *imv_swid_state_create(TNC_ConnectionID connection_id)
+{
+	private_imv_swid_state_t *this;
+
+	INIT(this,
+		.public = {
+			.interface = {
+				.get_connection_id = _get_connection_id,
+				.has_long = _has_long,
+				.has_excl = _has_excl,
+				.set_flags = _set_flags,
+				.set_max_msg_len = _set_max_msg_len,
+				.get_max_msg_len = _get_max_msg_len,
+				.set_action_flags = _set_action_flags,
+				.get_action_flags = _get_action_flags,
+				.set_ar_id = _set_ar_id,
+				.get_ar_id = _get_ar_id,
+				.set_session = _set_session,
+				.get_session= _get_session,
+				.change_state = _change_state,
+				.get_recommendation = _get_recommendation,
+				.set_recommendation = _set_recommendation,
+				.update_recommendation = _update_recommendation,
+				.get_reason_string = _get_reason_string,
+				.get_remediation_instructions = _get_remediation_instructions,
+				.destroy = _destroy,
+			},
+			.set_handshake_state = _set_handshake_state,
+			.get_handshake_state = _get_handshake_state,
+		},
+		.state = TNC_CONNECTION_STATE_CREATE,
+		.rec = TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION,
+		.eval = TNC_IMV_EVALUATION_RESULT_DONT_KNOW,
+		.connection_id = connection_id,
+	);
+
+	return &this->public.interface;
+}
+
+

src/libpts/plugins/imv_swid/imv_swid_state.h

@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2013 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_swid imv_swid
+ * @ingroup libimcv_plugins
+ *
+ * @defgroup imv_swid_state_t imv_swid_state
+ * @{ @ingroup imv_swid
+ */
+
+#ifndef IMV_SWID_STATE_H_
+#define IMV_SWID_STATE_H_
+
+#include <imv/imv_state.h>
+#include <library.h>
+
+typedef struct imv_swid_state_t imv_swid_state_t;
+typedef enum imv_swid_handshake_state_t imv_swid_handshake_state_t;
+
+/**
+ * IMV OS Handshake States (state machine)
+ */
+enum imv_swid_handshake_state_t {
+	IMV_SWID_STATE_INIT,
+	IMV_SWID_STATE_WORKITEMS,
+	IMV_SWID_STATE_END
+};
+
+/**
+ * Internal state of an imv_swid_t connection instance
+ */
+struct imv_swid_state_t {
+
+	/**
+	 * imv_state_t interface
+	 */
+	imv_state_t interface;
+
+	/**
+	 * Set state of the handshake
+	 *
+	 * @param new_state			the handshake state of IMV
+	 */
+	void (*set_handshake_state)(imv_swid_state_t *this,
+								imv_swid_handshake_state_t new_state);
+
+	/**
+	 * Get state of the handshake
+	 *
+	 * @return					the handshake state of IMV
+	 */
+	imv_swid_handshake_state_t (*get_handshake_state)(imv_swid_state_t *this);
+
+};
+
+/**
+ * Create an imv_swid_state_t instance
+ *
+ * @param id			connection ID
+ */
+imv_state_t* imv_swid_state_create(TNC_ConnectionID id);
+
+#endif /** IMV_SWID_STATE_H_ @}*/