Imported Upstream version 4.6.4

6 files changed, 1529 insertions, 0 deletions

diff --git a/src/libcharon/plugins/tnc_tnccs/Makefile.am b/src/libcharon/plugins/tnc_tnccs/Makefile.am
new file mode 100644
index 000000000..c7fc02f7c
--- /dev/null
+++ b/src/libcharon/plugins/tnc_tnccs/Makefile.am
@@ -0,0 +1,22 @@
+
+INCLUDES = \
+	-I$(top_srcdir)/src/libstrongswan \
+	-I$(top_srcdir)/src/libtncif \
+	-I$(top_srcdir)/src/libtnccs
+
+AM_CFLAGS = -rdynamic
+
+if MONOLITHIC
+noinst_LTLIBRARIES = libstrongswan-tnc-tnccs.la
+else
+plugin_LTLIBRARIES = libstrongswan-tnc-tnccs.la
+libstrongswan_tnc_tnccs_la_LIBADD = \
+	$(top_builddir)/src/libtncif/libtncif.la \
+	$(top_builddir)/src/libtnccs/libtnccs.la
+endif
+
+libstrongswan_tnc_tnccs_la_SOURCES = \
+	tnc_tnccs_plugin.h tnc_tnccs_plugin.c \
+	tnc_tnccs_manager.h tnc_tnccs_manager.c
+
+libstrongswan_tnc_tnccs_la_LDFLAGS = -module -avoid-version
diff --git a/src/libcharon/plugins/tnc_tnccs/Makefile.in b/src/libcharon/plugins/tnc_tnccs/Makefile.in
new file mode 100644
index 000000000..c12a837d1
--- /dev/null
+++ b/src/libcharon/plugins/tnc_tnccs/Makefile.in
@@ -0,0 +1,624 @@
+# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
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+transform = $(program_transform_name)
+NORMAL_INSTALL = :
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+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
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+host_triplet = @host@
+subdir = src/libcharon/plugins/tnc_tnccs
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+	$(top_srcdir)/m4/config/lt~obsolete.m4 \
+	$(top_srcdir)/m4/macros/with.m4 \
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+@MONOLITHIC_FALSE@	$(top_builddir)/src/libtncif/libtncif.la \
+@MONOLITHIC_FALSE@	$(top_builddir)/src/libtnccs/libtnccs.la
+am_libstrongswan_tnc_tnccs_la_OBJECTS = tnc_tnccs_plugin.lo \
+	tnc_tnccs_manager.lo
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+	$(am_libstrongswan_tnc_tnccs_la_OBJECTS)
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+	$(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \
+	$(AM_CFLAGS) $(CFLAGS) $(libstrongswan_tnc_tnccs_la_LDFLAGS) \
+	$(LDFLAGS) -o $@
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+@MONOLITHIC_FALSE@	$(plugindir)
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+	-I$(top_srcdir)/src/libstrongswan \
+	-I$(top_srcdir)/src/libtncif \
+	-I$(top_srcdir)/src/libtnccs
+
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+@MONOLITHIC_FALSE@	$(top_builddir)/src/libtncif/libtncif.la \
+@MONOLITHIC_FALSE@	$(top_builddir)/src/libtnccs/libtnccs.la
+
+libstrongswan_tnc_tnccs_la_SOURCES = \
+	tnc_tnccs_plugin.h tnc_tnccs_plugin.c \
+	tnc_tnccs_manager.h tnc_tnccs_manager.c
+
+libstrongswan_tnc_tnccs_la_LDFLAGS = -module -avoid-version
+all: all-am
+
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+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
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+libstrongswan-tnc-tnccs.la: $(libstrongswan_tnc_tnccs_la_OBJECTS) $(libstrongswan_tnc_tnccs_la_DEPENDENCIES) 
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+
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+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
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+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: CTAGS
+CTAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES)
+installdirs:
+	for dir in "$(DESTDIR)$(plugindir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
+	clean-pluginLTLIBRARIES mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-pluginLTLIBRARIES
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pluginLTLIBRARIES
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
+	clean-libtool clean-noinstLTLIBRARIES clean-pluginLTLIBRARIES \
+	ctags distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-pluginLTLIBRARIES install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags uninstall uninstall-am \
+	uninstall-pluginLTLIBRARIES
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/libcharon/plugins/tnc_tnccs/tnc_tnccs_manager.c b/src/libcharon/plugins/tnc_tnccs/tnc_tnccs_manager.c
new file mode 100644
index 000000000..64ed160d9
--- /dev/null
+++ b/src/libcharon/plugins/tnc_tnccs/tnc_tnccs_manager.c
@@ -0,0 +1,712 @@
+/*
+ * 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 "tnc_tnccs_manager.h"
+
+#include <tnc/tnc.h>
+#include <tnc/imv/imv_manager.h>
+#include <tnc/imc/imc_manager.h>
+#include <tnc/imv/imv_manager.h>
+
+#include <debug.h>
+#include <utils/linked_list.h>
+#include <threading/rwlock.h>
+
+typedef struct private_tnc_tnccs_manager_t private_tnc_tnccs_manager_t;
+typedef struct tnccs_entry_t tnccs_entry_t;
+typedef struct tnccs_connection_entry_t tnccs_connection_entry_t;
+
+/**
+ * TNCCS constructor entry
+ */
+struct tnccs_entry_t {
+
+	/**
+	 * TNCCS protocol type
+	 */
+	tnccs_type_t type;
+
+	/**
+	 * constructor function to create instance
+	 */
+	tnccs_constructor_t constructor;
+};
+
+/**
+ * TNCCS connection entry
+ */
+struct tnccs_connection_entry_t {
+
+	/**
+	 * TNCCS connection ID
+	 */
+	TNC_ConnectionID id;
+
+	/**
+	 * TNCCS protocol type
+	 */
+	tnccs_type_t type;
+
+	/**
+	 * TNCCS instance
+	 */
+	tnccs_t *tnccs;
+
+	/**
+	 * TNCCS send message function
+	 */
+	tnccs_send_message_t send_message;
+
+	/**
+	 * TNCCS request handshake retry flag
+	 */
+	bool *request_handshake_retry;
+
+	/**
+	 * collection of IMV recommendations
+	 */
+	recommendations_t *recs;
+};
+
+/**
+ * private data of tnc_tnccs_manager
+ */
+struct private_tnc_tnccs_manager_t {
+
+	/**
+	 * public functions
+	 */
+	tnccs_manager_t public;
+
+	/**
+	 * list of TNCCS protocol entries
+	 */
+	linked_list_t *protocols;
+
+	/**
+	 * rwlock to lock the TNCCS protocol entries
+	 */
+	rwlock_t *protocol_lock;
+
+	/**
+	 * connection ID counter
+	 */
+	TNC_ConnectionID connection_id;
+
+	/**
+	 * list of TNCCS connection entries
+	 */
+	linked_list_t *connections;
+
+	/**
+	 * rwlock to lock TNCCS connection entries
+	 */
+	rwlock_t *connection_lock;
+
+};
+
+METHOD(tnccs_manager_t, add_method, void,
+	private_tnc_tnccs_manager_t *this, tnccs_type_t type,
+	tnccs_constructor_t constructor)
+{
+	tnccs_entry_t *entry;
+
+	entry = malloc_thing(tnccs_entry_t);
+	entry->type = type;
+	entry->constructor = constructor;
+
+	this->protocol_lock->write_lock(this->protocol_lock);
+	this->protocols->insert_last(this->protocols, entry);
+	this->protocol_lock->unlock(this->protocol_lock);
+}
+
+METHOD(tnccs_manager_t, remove_method, void,
+	private_tnc_tnccs_manager_t *this, tnccs_constructor_t constructor)
+{
+	enumerator_t *enumerator;
+	tnccs_entry_t *entry;
+
+	this->protocol_lock->write_lock(this->protocol_lock);
+	enumerator = this->protocols->create_enumerator(this->protocols);
+	while (enumerator->enumerate(enumerator, &entry))
+	{
+		if (constructor == entry->constructor)
+		{
+			this->protocols->remove_at(this->protocols, enumerator);
+			free(entry);
+		}
+	}
+	enumerator->destroy(enumerator);
+	this->protocol_lock->unlock(this->protocol_lock);
+}
+
+METHOD(tnccs_manager_t, create_instance, tnccs_t*,
+	private_tnc_tnccs_manager_t *this, tnccs_type_t type, bool is_server)
+{
+	enumerator_t *enumerator;
+	tnccs_entry_t *entry;
+	tnccs_t *protocol = NULL;
+
+	this->protocol_lock->read_lock(this->protocol_lock);
+	enumerator = this->protocols->create_enumerator(this->protocols);
+	while (enumerator->enumerate(enumerator, &entry))
+	{
+		if (type == entry->type)
+		{
+			protocol = entry->constructor(is_server);
+			if (protocol)
+			{
+				break;
+			}
+		}
+	}
+	enumerator->destroy(enumerator);
+	this->protocol_lock->unlock(this->protocol_lock);
+
+	return protocol;
+}
+
+METHOD(tnccs_manager_t, create_connection, TNC_ConnectionID,
+	private_tnc_tnccs_manager_t *this, tnccs_type_t type, tnccs_t *tnccs,
+	tnccs_send_message_t send_message, bool* request_handshake_retry,
+	recommendations_t **recs)
+{
+	tnccs_connection_entry_t *entry;
+
+	entry = malloc_thing(tnccs_connection_entry_t);
+	entry->type = type;
+	entry->tnccs = tnccs;
+	entry->send_message = send_message;
+	entry->request_handshake_retry = request_handshake_retry;
+	if (recs)
+	{
+		/* we assume a TNC Server needing recommendations from IMVs */
+		if (!tnc->imvs)
+		{
+			DBG1(DBG_TNC, "no IMV manager available!");
+			free(entry);
+			return 0;
+		}
+		entry->recs = tnc->imvs->create_recommendations(tnc->imvs);
+		*recs = entry->recs;
+	}
+	else
+	{
+		/* we assume a TNC Client */
+		if (!tnc->imcs)
+		{
+			DBG1(DBG_TNC, "no IMC manager available!");
+			free(entry);
+			return 0;
+		}
+		entry->recs = NULL;
+	}
+	this->connection_lock->write_lock(this->connection_lock);
+	entry->id = ++this->connection_id;
+	this->connections->insert_last(this->connections, entry);
+	this->connection_lock->unlock(this->connection_lock);
+
+	DBG1(DBG_TNC, "assigned TNCCS Connection ID %u", entry->id);
+	return entry->id;
+}
+
+METHOD(tnccs_manager_t, remove_connection, void,
+	private_tnc_tnccs_manager_t *this, TNC_ConnectionID id, bool is_server)
+{
+	enumerator_t *enumerator;
+	tnccs_connection_entry_t *entry;
+
+	if (is_server)
+	{
+		if (tnc->imvs)
+		{
+			tnc->imvs->notify_connection_change(tnc->imvs, id,
+										TNC_CONNECTION_STATE_DELETE);
+		}
+	}
+	else
+	{
+		if (tnc->imcs)
+		{
+			tnc->imcs->notify_connection_change(tnc->imcs, id,
+										TNC_CONNECTION_STATE_DELETE);
+		}
+	}
+
+	this->connection_lock->write_lock(this->connection_lock);
+	enumerator = this->connections->create_enumerator(this->connections);
+	while (enumerator->enumerate(enumerator, &entry))
+	{
+		if (id == entry->id)
+		{
+			this->connections->remove_at(this->connections, enumerator);
+			if (entry->recs)
+			{
+				entry->recs->destroy(entry->recs);
+			}
+			free(entry);
+			DBG1(DBG_TNC, "removed TNCCS Connection ID %u", id);
+		}
+	}
+	enumerator->destroy(enumerator);
+	this->connection_lock->unlock(this->connection_lock);
+}
+
+METHOD(tnccs_manager_t,	request_handshake_retry, TNC_Result,
+	private_tnc_tnccs_manager_t *this, bool is_imc, TNC_UInt32 imcv_id,
+													TNC_ConnectionID id,
+													TNC_RetryReason reason)
+{
+	enumerator_t *enumerator;
+	tnccs_connection_entry_t *entry;
+
+	if (id == TNC_CONNECTIONID_ANY)
+	{
+		DBG2(DBG_TNC, "%s %u requests handshake retry for all connections "
+					  "(reason: %u)", is_imc ? "IMC":"IMV", reason);
+	}
+	else
+	{
+		DBG2(DBG_TNC, "%s %u requests handshake retry for Connection ID %u "
+					  "(reason: %u)", is_imc ? "IMC":"IMV", imcv_id, id, reason);
+	}
+	this->connection_lock->read_lock(this->connection_lock);
+	enumerator = this->connections->create_enumerator(this->connections);
+	while (enumerator->enumerate(enumerator, &entry))
+	{
+		if (id == TNC_CONNECTIONID_ANY || id == entry->id)
+		{
+			*entry->request_handshake_retry = TRUE;
+			break;
+		}
+	}
+	enumerator->destroy(enumerator);
+	this->connection_lock->unlock(this->connection_lock);
+
+	return TNC_RESULT_SUCCESS;
+}
+
+METHOD(tnccs_manager_t, send_message, TNC_Result,
+	private_tnc_tnccs_manager_t *this, TNC_IMCID imc_id, TNC_IMVID imv_id,
+									   TNC_ConnectionID id,
+									   TNC_UInt32 msg_flags,
+									   TNC_BufferReference msg,
+									   TNC_UInt32 msg_len,
+									   TNC_VendorID msg_vid,
+									   TNC_MessageSubtype msg_subtype)
+
+{
+	enumerator_t *enumerator;
+	tnccs_connection_entry_t *entry;
+	tnccs_send_message_t send_message = NULL;
+	tnccs_t *tnccs = NULL;
+
+	if (msg_vid == TNC_VENDORID_ANY || msg_subtype == TNC_SUBTYPE_ANY)
+	{
+		DBG1(DBG_TNC, "not sending message of invalid type 0x%02x/0x%08x",
+					   msg_vid, msg_subtype);
+		return TNC_RESULT_INVALID_PARAMETER;
+	}
+
+	this->connection_lock->read_lock(this->connection_lock);
+	enumerator = this->connections->create_enumerator(this->connections);
+	while (enumerator->enumerate(enumerator, &entry))
+	{
+		if (id == entry->id)
+		{
+			tnccs = entry->tnccs;
+			send_message = entry->send_message;
+			break;
+		}
+	}
+	enumerator->destroy(enumerator);
+	this->connection_lock->unlock(this->connection_lock);
+
+	if (tnccs && send_message)
+	{
+		return send_message(tnccs, imc_id, imv_id, msg_flags, msg, msg_len,
+							msg_vid, msg_subtype);
+	}
+	return TNC_RESULT_FATAL;
+}
+
+METHOD(tnccs_manager_t, provide_recommendation, TNC_Result,
+	private_tnc_tnccs_manager_t *this, TNC_IMVID imv_id,
+									   TNC_ConnectionID id,
+									   TNC_IMV_Action_Recommendation rec,
+									   TNC_IMV_Evaluation_Result eval)
+{
+	enumerator_t *enumerator;
+	tnccs_connection_entry_t *entry;
+	recommendations_t *recs = NULL;
+
+	this->connection_lock->read_lock(this->connection_lock);
+	enumerator = this->connections->create_enumerator(this->connections);
+	while (enumerator->enumerate(enumerator, &entry))
+	{
+		if (id == entry->id)
+		{
+			recs = entry->recs;
+			break;
+		}
+	}
+	enumerator->destroy(enumerator);
+	this->connection_lock->unlock(this->connection_lock);
+
+	if (recs)
+	{
+		recs->provide_recommendation(recs, imv_id, rec, eval);
+		return TNC_RESULT_SUCCESS;
+	 }
+	return TNC_RESULT_FATAL;
+}
+
+/**
+ * Write the value of a boolean attribute into the buffer
+ */
+static TNC_Result bool_attribute(TNC_UInt32 buffer_len,
+								 TNC_BufferReference buffer,
+								 TNC_UInt32 *value_len,
+								 bool value)
+{
+	*value_len = 1;
+
+	if (buffer && buffer_len > 0)
+	{
+		*buffer = value ? 0x01 : 0x00;
+		return TNC_RESULT_SUCCESS;
+	}
+	else
+	{
+		return TNC_RESULT_INVALID_PARAMETER;
+	}
+}
+
+/**
+ * Write the value of an u_int32_t attribute into the buffer
+ */
+static TNC_Result uint_attribute(TNC_UInt32 buffer_len,
+								 TNC_BufferReference buffer,
+								 TNC_UInt32 *value_len,
+								 u_int32_t value)
+{
+	*value_len = sizeof(u_int32_t);
+
+	if (buffer && buffer_len >= *value_len)
+	{
+		htoun32(buffer, value);
+		return TNC_RESULT_SUCCESS;
+	}
+	else
+	{
+		return TNC_RESULT_INVALID_PARAMETER;
+	}
+}
+
+/**
+ * Write the value of string attribute into the buffer
+ */
+static TNC_Result str_attribute(TNC_UInt32 buffer_len,
+								 TNC_BufferReference buffer,
+								 TNC_UInt32 *value_len,
+								 char *value)
+{
+	*value_len = 1 + strlen(value);
+
+	if (buffer && buffer_len >= *value_len)
+	{
+		snprintf(buffer, buffer_len, "%s", value);
+		return TNC_RESULT_SUCCESS;
+	}
+	else
+	{
+		return TNC_RESULT_INVALID_PARAMETER;
+	}
+}
+
+METHOD(tnccs_manager_t, get_attribute, TNC_Result,
+	private_tnc_tnccs_manager_t *this, bool is_imc,
+									   TNC_UInt32 imcv_id,
+									   TNC_ConnectionID id,
+									   TNC_AttributeID attribute_id,
+									   TNC_UInt32 buffer_len,
+									   TNC_BufferReference buffer,
+									   TNC_UInt32 *value_len)
+{
+	enumerator_t *enumerator;
+	tnccs_connection_entry_t *entry;
+	bool attribute_match = FALSE, entry_found = FALSE;
+	
+	if (is_imc)
+	{
+		switch (attribute_id)
+		{
+			/* these attributes are unsupported */
+			case TNC_ATTRIBUTEID_SOHR:
+			case TNC_ATTRIBUTEID_SSOHR:
+				return TNC_RESULT_INVALID_PARAMETER;
+
+			/* these attributes are supported */
+			case TNC_ATTRIBUTEID_PRIMARY_IMC_ID:
+				attribute_match = TRUE;
+				break;
+
+			/* these attributes are yet to be matched */
+			default:
+				break;
+		}
+	}
+	else
+	{
+		switch (attribute_id)
+		{
+			/* these attributes are unsupported or invalid */
+			case TNC_ATTRIBUTEID_REASON_STRING:
+			case TNC_ATTRIBUTEID_REASON_LANGUAGE:
+			case TNC_ATTRIBUTEID_SOH:
+			case TNC_ATTRIBUTEID_SSOH:
+				return TNC_RESULT_INVALID_PARAMETER;
+
+			/* these attributes are supported */
+			case TNC_ATTRIBUTEID_PRIMARY_IMV_ID:
+				attribute_match = TRUE;
+				break;
+
+			/* these attributes are yet to be matched */
+			default:
+				break;
+		}
+	}
+
+	if (!attribute_match)
+	{
+		switch (attribute_id)
+		{
+			/* these attributes are supported */
+			case TNC_ATTRIBUTEID_PREFERRED_LANGUAGE:
+			case TNC_ATTRIBUTEID_MAX_ROUND_TRIPS:
+			case TNC_ATTRIBUTEID_MAX_MESSAGE_SIZE:
+			case TNC_ATTRIBUTEID_HAS_LONG_TYPES:
+			case TNC_ATTRIBUTEID_HAS_EXCLUSIVE:
+			case TNC_ATTRIBUTEID_HAS_SOH:
+			case TNC_ATTRIBUTEID_IFTNCCS_PROTOCOL:
+			case TNC_ATTRIBUTEID_IFTNCCS_VERSION:
+			case TNC_ATTRIBUTEID_IFT_PROTOCOL:
+			case TNC_ATTRIBUTEID_IFT_VERSION:
+				break;
+
+			/* these attributes are unsupported or unknown */
+			case TNC_ATTRIBUTEID_DHPN:
+			case TNC_ATTRIBUTEID_TLS_UNIQUE:
+			default:
+				return TNC_RESULT_INVALID_PARAMETER;
+		}
+	}
+	
+	/* attributes specific to the TNCC or TNCS are unsupported */
+	if (id == TNC_CONNECTIONID_ANY)
+	{
+		return TNC_RESULT_INVALID_PARAMETER;
+	}
+
+	this->connection_lock->read_lock(this->connection_lock);
+	enumerator = this->connections->create_enumerator(this->connections);
+	while (enumerator->enumerate(enumerator, &entry))
+	{
+		if (id == entry->id)
+		{
+			entry_found = TRUE;
+			break;
+		}
+	}
+	enumerator->destroy(enumerator);
+	this->connection_lock->unlock(this->connection_lock);
+
+	if (!entry_found)
+	{
+		return TNC_RESULT_INVALID_PARAMETER;
+	}
+
+	switch (attribute_id)
+	{
+		case TNC_ATTRIBUTEID_PREFERRED_LANGUAGE:
+		{
+			recommendations_t *recs;
+			chunk_t pref_lang;
+
+			recs = entry->recs;
+			if (!recs)
+			{
+				return TNC_RESULT_INVALID_PARAMETER;
+			}
+			pref_lang = recs->get_preferred_language(recs);
+			if (pref_lang.len == 0)
+			{
+				return TNC_RESULT_INVALID_PARAMETER;
+			}
+			*value_len = pref_lang.len;
+			if (buffer && buffer_len >= pref_lang.len)
+			{
+				memcpy(buffer, pref_lang.ptr, pref_lang.len);
+			}
+			return TNC_RESULT_SUCCESS;
+		}
+		case TNC_ATTRIBUTEID_MAX_ROUND_TRIPS:
+			return uint_attribute(buffer_len, buffer, value_len, 0xffffffff);
+		case TNC_ATTRIBUTEID_MAX_MESSAGE_SIZE:
+			return uint_attribute(buffer_len, buffer, value_len, 0x00000000);
+		case TNC_ATTRIBUTEID_HAS_LONG_TYPES:
+		case TNC_ATTRIBUTEID_HAS_EXCLUSIVE:
+			return bool_attribute(buffer_len, buffer, value_len, 
+								 	 entry->type == TNCCS_2_0);
+		case TNC_ATTRIBUTEID_HAS_SOH:
+			return bool_attribute(buffer_len, buffer, value_len, 
+								  	entry->type == TNCCS_SOH);
+		case TNC_ATTRIBUTEID_IFTNCCS_PROTOCOL:
+		{
+			char *protocol;
+
+			switch (entry->type)
+			{
+				case TNCCS_1_1:
+				case TNCCS_2_0:
+					protocol = "IF-TNCCS";
+					break;
+				case TNCCS_SOH:
+					protocol = "IF-TNCCS-SOH";
+					break;
+				default:
+				return TNC_RESULT_INVALID_PARAMETER;
+			}
+			return str_attribute(buffer_len, buffer, value_len, protocol);
+		}
+		case TNC_ATTRIBUTEID_IFTNCCS_VERSION:
+		{
+			char *version;
+
+			switch (entry->type)
+			{
+				case TNCCS_1_1:
+					version = "1.1";
+					break;
+				case TNCCS_2_0:
+					version = "2.0";
+					break;
+				case TNCCS_SOH:
+					version = "1.0";
+					break;
+				default:
+				return TNC_RESULT_INVALID_PARAMETER;
+			}
+			return str_attribute(buffer_len, buffer, value_len, version);
+		}
+		case TNC_ATTRIBUTEID_IFT_PROTOCOL:
+			return str_attribute(buffer_len, buffer, value_len,
+										 "IF-T for Tunneled EAP");
+ 		case TNC_ATTRIBUTEID_IFT_VERSION:
+			return str_attribute(buffer_len, buffer, value_len, "1.1");
+		default:
+			return TNC_RESULT_INVALID_PARAMETER;
+	 }
+}
+
+METHOD(tnccs_manager_t, set_attribute, TNC_Result,
+	private_tnc_tnccs_manager_t *this, bool is_imc,
+									   TNC_UInt32 imcv_id,
+									   TNC_ConnectionID id,
+									   TNC_AttributeID attribute_id,
+									   TNC_UInt32 buffer_len,
+									   TNC_BufferReference buffer)
+{
+	enumerator_t *enumerator;
+	tnccs_connection_entry_t *entry;
+	recommendations_t *recs = NULL;
+
+	if (is_imc || id == TNC_CONNECTIONID_ANY ||
+		(attribute_id != TNC_ATTRIBUTEID_REASON_STRING &&
+		 attribute_id != TNC_ATTRIBUTEID_REASON_LANGUAGE))
+	{
+		return TNC_RESULT_INVALID_PARAMETER;
+	}
+
+	this->connection_lock->read_lock(this->connection_lock);
+	enumerator = this->connections->create_enumerator(this->connections);
+	while (enumerator->enumerate(enumerator, &entry))
+	{
+		if (id == entry->id)
+		{
+			recs = entry->recs;
+			break;
+		}
+	}
+	enumerator->destroy(enumerator);
+	this->connection_lock->unlock(this->connection_lock);
+
+	if (recs)
+	{
+		chunk_t attribute = { buffer, buffer_len };
+
+		if (attribute_id == TNC_ATTRIBUTEID_REASON_STRING)
+		{
+			return recs->set_reason_string(recs, imcv_id, attribute);
+		}
+		else
+		{
+			return recs->set_reason_language(recs, imcv_id, attribute);
+		}
+	}
+	return TNC_RESULT_INVALID_PARAMETER;
+}
+
+METHOD(tnccs_manager_t, destroy, void,
+	private_tnc_tnccs_manager_t *this)
+{
+	this->protocols->destroy_function(this->protocols, free);
+	this->protocol_lock->destroy(this->protocol_lock);
+	this->connections->destroy_function(this->connections, free);
+	this->connection_lock->destroy(this->connection_lock);
+	free(this);
+}
+
+/*
+ * See header
+ */
+tnccs_manager_t *tnc_tnccs_manager_create()
+{
+	private_tnc_tnccs_manager_t *this;
+
+	INIT(this,
+			.public = {
+				.add_method = _add_method,
+				.remove_method = _remove_method,
+				.create_instance = _create_instance,
+				.create_connection = _create_connection,
+				.remove_connection = _remove_connection,
+				.request_handshake_retry = _request_handshake_retry,
+				.send_message = _send_message,
+				.provide_recommendation = _provide_recommendation,
+				.get_attribute = _get_attribute,
+				.set_attribute = _set_attribute,
+				.destroy = _destroy,
+			},
+			.protocols = linked_list_create(),
+			.connections = linked_list_create(),
+			.protocol_lock = rwlock_create(RWLOCK_TYPE_DEFAULT),
+			.connection_lock = rwlock_create(RWLOCK_TYPE_DEFAULT),
+	);
+
+	return &this->public;
+}
+
diff --git a/src/libcharon/plugins/tnc_tnccs/tnc_tnccs_manager.h b/src/libcharon/plugins/tnc_tnccs/tnc_tnccs_manager.h
new file mode 100644
index 000000000..dd5149846
--- /dev/null
+++ b/src/libcharon/plugins/tnc_tnccs/tnc_tnccs_manager.h
@@ -0,0 +1,31 @@
+/*
+ * 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 tnc_tnccs_manager tnc_tnccs_manager
+ * @{ @ingroup tnc_tnccs
+ */
+
+#ifndef TNC_TNCCS_MANAGER_H_
+#define TNC_TNCCS_MANAGER_H_
+
+#include <tnc/tnccs/tnccs_manager.h>
+
+/**
+ * Create a TNCCS manager instance.
+ */
+tnccs_manager_t *tnc_tnccs_manager_create();
+
+#endif /** TNC_TNCCS_MANAGER_H_ @}*/
diff --git a/src/libcharon/plugins/tnc_tnccs/tnc_tnccs_plugin.c b/src/libcharon/plugins/tnc_tnccs/tnc_tnccs_plugin.c
new file mode 100644
index 000000000..a44319ed1
--- /dev/null
+++ b/src/libcharon/plugins/tnc_tnccs/tnc_tnccs_plugin.c
@@ -0,0 +1,98 @@
+/*
+ * 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 "tnc_tnccs_plugin.h"
+#include "tnc_tnccs_manager.h"
+
+#include <tnc/tnc.h>
+
+#include <debug.h>
+
+typedef struct private_tnc_tnccs_plugin_t private_tnc_tnccs_plugin_t;
+
+/**
+ * Private data of a tnc_tnccs_plugin_t object.
+ */
+struct private_tnc_tnccs_plugin_t {
+
+	/**
+	 * Public interface.
+	 */
+	tnc_tnccs_plugin_t public;
+
+};
+
+
+METHOD(plugin_t, get_name, char*,
+	private_tnc_tnccs_plugin_t *this)
+{
+	return "tnc-tnccs";
+}
+
+METHOD(plugin_t, get_features, int,
+	private_tnc_tnccs_plugin_t *this, plugin_feature_t *features[])
+{
+	static plugin_feature_t f[] = {
+		PLUGIN_CALLBACK(tnc_manager_register, tnc_tnccs_manager_create),
+			PLUGIN_PROVIDE(CUSTOM, "tnccs-manager"),
+	};
+	*features = f;
+	return countof(f);
+}
+
+METHOD(plugin_t, destroy, void,
+	private_tnc_tnccs_plugin_t *this)
+{
+	libtnccs_deinit();
+	free(this);
+}
+
+/*
+ * see header file
+ */
+plugin_t *tnc_tnccs_plugin_create(void)
+{
+	private_tnc_tnccs_plugin_t *this;
+
+	if (lib->integrity)
+	{
+		if (lib->integrity->check(lib->integrity, "libtnccs", libtnccs_init))
+		{
+			DBG1(DBG_LIB,
+				 "lib    'libtnccs': passed file and segment integrity tests");
+		}
+		else
+		{
+			DBG1(DBG_LIB,
+				 "lib    'libtnccs': failed integrity tests");
+			return NULL;
+		}
+	}
+
+	INIT(this,
+		.public = {
+			.plugin = {
+				.get_name = _get_name,
+				.get_features = _get_features,
+				.destroy = _destroy,
+			},
+		},
+	);
+
+	libtnccs_init();
+
+	return &this->public.plugin;
+}
+
diff --git a/src/libcharon/plugins/tnc_tnccs/tnc_tnccs_plugin.h b/src/libcharon/plugins/tnc_tnccs/tnc_tnccs_plugin.h
new file mode 100644
index 000000000..f935fa462
--- /dev/null
+++ b/src/libcharon/plugins/tnc_tnccs/tnc_tnccs_plugin.h
@@ -0,0 +1,42 @@
+/*
+ * 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 tnc_tnccs tnc_tnccs
+ * @ingroup cplugins
+ *
+ * @defgroup tnc_tnccs_plugin tnc_tnccs_plugin
+ * @{ @ingroup tnc_tnccs
+ */
+
+#ifndef TNC_TNCCS_PLUGIN_H_
+#define TNC_TNCCS_PLUGIN_H_
+
+#include <plugins/plugin.h>
+
+typedef struct tnc_tnccs_plugin_t tnc_tnccs_plugin_t;
+
+/**
+ * TNCCS manager plugin
+ */
+struct tnc_tnccs_plugin_t {
+
+	/**
+	 * implements plugin interface
+	 */
+	plugin_t plugin;
+};
+
+#endif /** TNC_TNCCS_PLUGIN_H_ @}*/