Imported Upstream version 4.6.4

1 files changed, 315 insertions, 0 deletions

diff --git a/src/libimcv/plugins/imv_test/imv_test.c b/src/libimcv/plugins/imv_test/imv_test.c
new file mode 100644
index 000000000..0afd81aec
--- /dev/null
+++ b/src/libimcv/plugins/imv_test/imv_test.c
@@ -0,0 +1,315 @@
+/*
+ * 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 "imv_test_state.h"
+
+#include <imv/imv_agent.h>
+#include <pa_tnc/pa_tnc_msg.h>
+#include <ietf/ietf_attr.h>
+#include <ietf/ietf_attr_pa_tnc_error.h>
+#include <ita/ita_attr.h>
+#include <ita/ita_attr_command.h>
+
+#include <tncif_names.h>
+#include <tncif_pa_subtypes.h>
+
+#include <pen/pen.h>
+#include <debug.h>
+
+/* IMV definitions */
+
+static const char imv_name[] = "Test";
+
+#define IMV_VENDOR_ID	PEN_ITA
+#define IMV_SUBTYPE		PA_SUBTYPE_ITA_TEST
+
+static imv_agent_t *imv_test;
+
+/**
+ * see section 3.8.1 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMV_Initialize(TNC_IMVID imv_id,
+							  TNC_Version min_version,
+							  TNC_Version max_version,
+							  TNC_Version *actual_version)
+{
+	if (imv_test)
+	{
+		DBG1(DBG_IMV, "IMV \"%s\" has already been initialized", imv_name);
+		return TNC_RESULT_ALREADY_INITIALIZED;
+	}
+	imv_test = imv_agent_create(imv_name, IMV_VENDOR_ID, IMV_SUBTYPE,
+								imv_id, actual_version);
+	if (!imv_test)
+	{
+		return TNC_RESULT_FATAL;
+	}
+	if (min_version > TNC_IFIMV_VERSION_1 || max_version < TNC_IFIMV_VERSION_1)
+	{
+		DBG1(DBG_IMV, "no common IF-IMV version");
+		return TNC_RESULT_NO_COMMON_VERSION;
+	}
+	return TNC_RESULT_SUCCESS;
+}
+
+/**
+ * see section 3.8.2 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMV_NotifyConnectionChange(TNC_IMVID imv_id,
+										  TNC_ConnectionID connection_id,
+										  TNC_ConnectionState new_state)
+{
+	imv_state_t *state;
+
+	if (!imv_test)
+	{
+		DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
+		return TNC_RESULT_NOT_INITIALIZED;
+	}
+	switch (new_state)
+	{
+		case TNC_CONNECTION_STATE_CREATE:
+			state = imv_test_state_create(connection_id);
+			return imv_test->create_state(imv_test, state);
+		case TNC_CONNECTION_STATE_DELETE:
+			return imv_test->delete_state(imv_test, connection_id);
+		default:
+			return imv_test->change_state(imv_test, connection_id,
+										  new_state, NULL);
+	}
+}
+
+static TNC_Result receive_message(TNC_IMVID imv_id,
+								  TNC_ConnectionID connection_id,
+								  TNC_UInt32 msg_flags,
+								  chunk_t msg,
+								  TNC_VendorID msg_vid,
+								  TNC_MessageSubtype msg_subtype,
+								  TNC_UInt32 src_imc_id,
+								  TNC_UInt32 dst_imv_id)
+{
+	pa_tnc_msg_t *pa_tnc_msg;
+	pa_tnc_attr_t *attr;
+	imv_state_t *state;
+	imv_test_state_t *test_state;
+	enumerator_t *enumerator;
+	TNC_Result result;
+	int rounds;
+	bool fatal_error, retry = FALSE;
+
+	if (!imv_test)
+	{
+		DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
+		return TNC_RESULT_NOT_INITIALIZED;
+	}
+
+	/* get current IMV state */
+	if (!imv_test->get_state(imv_test, connection_id, &state))
+	{
+		return TNC_RESULT_FATAL;
+	}
+	test_state = (imv_test_state_t*)state;
+
+	/* parse received PA-TNC message and automatically handle any errors */ 
+	result = imv_test->receive_message(imv_test, state, msg, msg_vid,
+					 		msg_subtype, src_imc_id, dst_imv_id, &pa_tnc_msg);
+
+	/* no parsed PA-TNC attributes available if an error occurred */
+	if (!pa_tnc_msg)
+	{
+		return result;
+	}
+
+	/* preprocess any IETF standard error attributes */
+	fatal_error = pa_tnc_msg->process_ietf_std_errors(pa_tnc_msg);
+
+	/* add any new IMC and set its number of rounds */
+	rounds = lib->settings->get_int(lib->settings,
+								"libimcv.plugins.imv-test.rounds", 0);
+	test_state->add_imc(test_state, src_imc_id, rounds);
+
+	/* analyze PA-TNC attributes */
+	enumerator = pa_tnc_msg->create_attribute_enumerator(pa_tnc_msg);
+	while (enumerator->enumerate(enumerator, &attr))
+	{
+		if (attr->get_vendor_id(attr) == PEN_ITA &&
+			attr->get_type(attr) == ITA_ATTR_COMMAND)
+		{
+			ita_attr_command_t *ita_attr;
+			char *command;
+	
+			ita_attr = (ita_attr_command_t*)attr;
+			command = ita_attr->get_command(ita_attr);
+
+			if (streq(command, "allow"))
+			{
+				state->set_recommendation(state,
+								TNC_IMV_ACTION_RECOMMENDATION_ALLOW,
+								TNC_IMV_EVALUATION_RESULT_COMPLIANT);			  
+			}
+			else if (streq(command, "isolate"))
+			{
+				state->set_recommendation(state,
+								TNC_IMV_ACTION_RECOMMENDATION_ISOLATE,
+								TNC_IMV_EVALUATION_RESULT_NONCOMPLIANT_MINOR);			  
+			}
+			else if (streq(command, "block") || streq(command, "none"))
+			{
+				state->set_recommendation(state,
+								TNC_IMV_ACTION_RECOMMENDATION_NO_ACCESS,
+								TNC_IMV_EVALUATION_RESULT_NONCOMPLIANT_MAJOR);			  
+			}
+			else if (streq(command, "retry"))
+			{
+				retry = TRUE;
+			}
+			else
+			{
+				DBG1(DBG_IMV, "unsupported ITA Command '%s'", command);
+				state->set_recommendation(state,
+								TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION,
+								TNC_IMV_EVALUATION_RESULT_ERROR);			  
+			}
+		}		
+	}
+	enumerator->destroy(enumerator);
+	pa_tnc_msg->destroy(pa_tnc_msg);
+
+	if (fatal_error)
+	{
+		state->set_recommendation(state,
+								TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION,
+								TNC_IMV_EVALUATION_RESULT_ERROR);			  
+		return imv_test->provide_recommendation(imv_test, connection_id);
+	}
+
+	/* request a handshake retry ? */
+	if (retry)
+	{
+		test_state->set_rounds(test_state, rounds);
+		return imv_test->request_handshake_retry(imv_id, connection_id,
+								TNC_RETRY_REASON_IMV_SERIOUS_EVENT);
+	}
+	
+	/* repeat the measurement ? */
+	if (test_state->another_round(test_state, src_imc_id))
+	{
+		attr = ita_attr_command_create("repeat");
+		pa_tnc_msg = pa_tnc_msg_create();
+		pa_tnc_msg->add_attribute(pa_tnc_msg, attr);
+		pa_tnc_msg->build(pa_tnc_msg);
+		result = imv_test->send_message(imv_test, connection_id, TRUE, imv_id,
+							src_imc_id, pa_tnc_msg->get_encoding(pa_tnc_msg));	
+		pa_tnc_msg->destroy(pa_tnc_msg);
+
+		return result;
+	}
+
+	return imv_test->provide_recommendation(imv_test, connection_id);
+}
+
+/**
+ * see section 3.8.4 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMV_ReceiveMessage(TNC_IMVID imv_id,
+								  TNC_ConnectionID connection_id,
+								  TNC_BufferReference msg,
+								  TNC_UInt32 msg_len,
+								  TNC_MessageType msg_type)
+{
+	TNC_VendorID msg_vid;
+	TNC_MessageSubtype msg_subtype;
+
+	msg_vid = msg_type >> 8;
+	msg_subtype = msg_type & TNC_SUBTYPE_ANY;
+
+	return receive_message(imv_id, connection_id, 0, chunk_create(msg, msg_len),
+						   msg_vid,	msg_subtype, 0, TNC_IMVID_ANY);
+}
+
+/**
+ * see section 3.8.6 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMV_ReceiveMessageLong(TNC_IMVID imv_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_imc_id,
+									  TNC_UInt32 dst_imv_id)
+{
+	return receive_message(imv_id, connection_id, msg_flags,
+						   chunk_create(msg, msg_len), msg_vid, msg_subtype,
+						   src_imc_id, dst_imv_id);
+}
+
+/**
+ * see section 3.8.7 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMV_SolicitRecommendation(TNC_IMVID imv_id,
+										 TNC_ConnectionID connection_id)
+{
+	if (!imv_test)
+	{
+		DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
+		return TNC_RESULT_NOT_INITIALIZED;
+	}
+	return imv_test->provide_recommendation(imv_test, connection_id);
+}
+
+/**
+ * see section 3.8.8 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMV_BatchEnding(TNC_IMVID imv_id,
+							   TNC_ConnectionID connection_id)
+{
+	if (!imv_test)
+	{
+		DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
+		return TNC_RESULT_NOT_INITIALIZED;
+	}
+	return TNC_RESULT_SUCCESS;
+}
+
+/**
+ * see section 3.8.9 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMV_Terminate(TNC_IMVID imv_id)
+{
+	if (!imv_test)
+	{
+		DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
+		return TNC_RESULT_NOT_INITIALIZED;
+	}
+	imv_test->destroy(imv_test);
+	imv_test = NULL;
+
+	return TNC_RESULT_SUCCESS;
+}
+
+/**
+ * see section 4.2.8.1 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMV_ProvideBindFunction(TNC_IMVID imv_id,
+									   TNC_TNCS_BindFunctionPointer bind_function)
+{
+	if (!imv_test)
+	{
+		DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
+		return TNC_RESULT_NOT_INITIALIZED;
+	}
+	return imv_test->bind_functions(imv_test, bind_function);
+}