Imported Upstream version 5.1.1

16 files changed, 2451 insertions, 0 deletions

diff --git a/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_access_recommendation_msg.c b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_access_recommendation_msg.c
new file mode 100644
index 000000000..5c4b5ae00
--- /dev/null
+++ b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_access_recommendation_msg.c
@@ -0,0 +1,181 @@
+/*
+ * Copyright (C) 2010 Sansar Choinyambuu
+ * 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 "pb_access_recommendation_msg.h"
+
+#include <bio/bio_writer.h>
+#include <bio/bio_reader.h>
+#include <utils/debug.h>
+
+ENUM(pb_access_recommendation_code_names, PB_REC_ACCESS_ALLOWED, PB_REC_QUARANTINED,
+	"Access Allowed",
+	"Access Denied",
+	"Quarantined"
+);
+
+typedef struct private_pb_access_recommendation_msg_t private_pb_access_recommendation_msg_t;
+
+/**
+ *   PB-Access-Recommendation message (see section 4.7 of RFC 5793)
+ *
+ *      0                   1                   2                   3
+ *      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |          Reserved             |   Access Recommendation Code  |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+#define ACCESS_RECOMMENDATION_RESERVED	 	0x0000
+#define ACCESS_RECOMMENDATION_MSG_SIZE		4
+/**
+ * Private data of a pb_access_recommendation_msg_t object.
+ *
+ */
+struct private_pb_access_recommendation_msg_t {
+	/**
+	 * Public pb_access_recommendation_msg_t interface.
+	 */
+	pb_access_recommendation_msg_t public;
+
+	/**
+	 * PB-TNC message type
+	 */
+	pen_type_t type;
+
+	/**
+	 * Access recommendation code
+	 */
+	u_int16_t recommendation;
+
+	/**
+	 * Encoded message
+	 */
+	chunk_t encoding;
+};
+
+METHOD(pb_tnc_msg_t, get_type, pen_type_t,
+	private_pb_access_recommendation_msg_t *this)
+{
+	return this->type;
+}
+
+METHOD(pb_tnc_msg_t, get_encoding, chunk_t,
+	private_pb_access_recommendation_msg_t *this)
+{
+	return this->encoding;
+}
+
+METHOD(pb_tnc_msg_t, build, void,
+	private_pb_access_recommendation_msg_t *this)
+{
+	bio_writer_t *writer;
+
+	if (this->encoding.ptr)
+	{
+		return;
+	}
+	writer = bio_writer_create(ACCESS_RECOMMENDATION_MSG_SIZE);
+	writer->write_uint16(writer, ACCESS_RECOMMENDATION_RESERVED);
+	writer->write_uint16(writer, this->recommendation);
+	this->encoding = writer->get_buf(writer);
+	this->encoding = chunk_clone(this->encoding);
+	writer->destroy(writer);
+}
+
+METHOD(pb_tnc_msg_t, process, status_t,
+	private_pb_access_recommendation_msg_t *this, u_int32_t *offset)
+{
+	bio_reader_t *reader;
+	u_int16_t reserved;
+
+	reader = bio_reader_create(this->encoding);
+	reader->read_uint16(reader, &reserved);
+	reader->read_uint16(reader, &this->recommendation);
+	reader->destroy(reader);
+
+	if (this->recommendation < PB_REC_ACCESS_ALLOWED ||
+		this->recommendation > PB_REC_QUARANTINED)
+	{
+		DBG1(DBG_TNC, "invalid access recommendation code (%u)",
+					   this->recommendation);
+		*offset = 2;
+		return FAILED;
+	}
+
+	return SUCCESS;
+}
+
+METHOD(pb_tnc_msg_t, destroy, void,
+	private_pb_access_recommendation_msg_t *this)
+{
+	free(this->encoding.ptr);
+	free(this);
+}
+
+METHOD(pb_access_recommendation_msg_t, get_access_recommendation, u_int16_t,
+	private_pb_access_recommendation_msg_t *this)
+{
+	return this->recommendation;
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t *pb_access_recommendation_msg_create_from_data(chunk_t data)
+{
+	private_pb_access_recommendation_msg_t *this;
+
+	INIT(this,
+		.public = {
+			.pb_interface = {
+				.get_type = _get_type,
+				.get_encoding = _get_encoding,
+				.build = _build,
+				.process = _process,
+				.destroy = _destroy,
+			},
+			.get_access_recommendation = _get_access_recommendation,
+		},
+		.type = { PEN_IETF, PB_MSG_ACCESS_RECOMMENDATION },
+		.encoding = chunk_clone(data),
+	);
+
+	return &this->public.pb_interface;
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t *pb_access_recommendation_msg_create(u_int16_t recommendation)
+{
+	private_pb_access_recommendation_msg_t *this;
+
+	INIT(this,
+		.public = {
+			.pb_interface = {
+				.get_type = _get_type,
+				.get_encoding = _get_encoding,
+				.build = _build,
+				.process = _process,
+				.destroy = _destroy,
+			},
+			.get_access_recommendation = _get_access_recommendation,
+		},
+		.type = { PEN_IETF, PB_MSG_ACCESS_RECOMMENDATION },
+		.recommendation = recommendation,
+	);
+
+	return &this->public.pb_interface;
+}
diff --git a/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_access_recommendation_msg.h b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_access_recommendation_msg.h
new file mode 100644
index 000000000..d0dc6358b
--- /dev/null
+++ b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_access_recommendation_msg.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2010 Sansar Choinyambuu
+ * 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 pb_access_recommendation_msg pb_access_recommendation_msg
+ * @{ @ingroup tnccs_20
+ */
+
+#ifndef PB_ACCESS_RECOMMENDATION_MSG_H_
+#define PB_ACCESS_RECOMMENDATION_MSG_H_
+
+typedef enum pb_access_recommendation_code_t pb_access_recommendation_code_t;
+typedef struct pb_access_recommendation_msg_t pb_access_recommendation_msg_t;
+
+#include "messages/pb_tnc_msg.h"
+
+/**
+ * PB Access Recommendation Codes as defined in section 4.7 of RFC 5793
+ */
+enum pb_access_recommendation_code_t {
+	PB_REC_ACCESS_ALLOWED =	1,
+	PB_REC_ACCESS_DENIED =	2,
+	PB_REC_QUARANTINED =	3,
+};
+
+/**
+ * enum name for pb_access_recommendation_code_t.
+ */
+extern enum_name_t *pb_access_recommendation_code_names;
+
+
+/**
+ * Class representing the PB-Access-Recommendation message type.
+ */
+struct pb_access_recommendation_msg_t {
+
+	/**
+	 * PB-TNC Message interface
+	 */
+	pb_tnc_msg_t pb_interface;
+
+	/**
+	 * Get PB Access Recommendation
+	 *
+	 * @return			PB Access Recommendation
+	 */
+	u_int16_t (*get_access_recommendation)(pb_access_recommendation_msg_t *this);
+};
+
+/**
+ * Create a PB-Access-Recommendation message from parameters
+ *
+ * @param recommendation	Access Recommendation code
+ */
+pb_tnc_msg_t* pb_access_recommendation_msg_create(u_int16_t recommendation);
+
+/**
+ * Create an unprocessed PB-Access-Recommendation message from raw data
+ *
+  * @param data		PB-Access-Recommendation message data
+ */
+pb_tnc_msg_t* pb_access_recommendation_msg_create_from_data(chunk_t data);
+
+#endif /** PB_PA_MSG_H_ @}*/
diff --git a/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_assessment_result_msg.c b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_assessment_result_msg.c
new file mode 100644
index 000000000..e23493569
--- /dev/null
+++ b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_assessment_result_msg.c
@@ -0,0 +1,174 @@
+/*
+ * Copyright (C) 2010 Sansar Choinyambuu
+ * 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 "pb_assessment_result_msg.h"
+
+#include <tncifimv.h>
+
+#include <bio/bio_writer.h>
+#include <bio/bio_reader.h>
+#include <utils/debug.h>
+
+typedef struct private_pb_assessment_result_msg_t private_pb_assessment_result_msg_t;
+
+/**
+ *   PB-Assessment-Result message (see section 4.6 of RFC 5793)
+ *
+ *                          1                   2                   3
+ *      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |                       Assessment Result                       |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+#define ASSESSMENT_RESULT_MSG_SIZE	4
+
+/**
+ * Private data of a pb_assessment_result_msg_t object.
+ *
+ */
+struct private_pb_assessment_result_msg_t {
+	/**
+	 * Public pb_assessment_result_msg_t interface.
+	 */
+	pb_assessment_result_msg_t public;
+
+	/**
+	 * PB-TNC message type
+	 */
+	pen_type_t type;
+
+	/**
+	 * Assessment result code
+	 */
+	u_int32_t assessment_result;
+
+	/**
+	 * Encoded message
+	 */
+	chunk_t encoding;
+};
+
+METHOD(pb_tnc_msg_t, get_type, pen_type_t,
+	private_pb_assessment_result_msg_t *this)
+{
+	return this->type;
+}
+
+METHOD(pb_tnc_msg_t, get_encoding, chunk_t,
+	private_pb_assessment_result_msg_t *this)
+{
+	return this->encoding;
+}
+
+METHOD(pb_tnc_msg_t, build, void,
+	private_pb_assessment_result_msg_t *this)
+{
+	bio_writer_t *writer;
+
+	if (this->encoding.ptr)
+	{
+		return;
+	}
+	writer = bio_writer_create(ASSESSMENT_RESULT_MSG_SIZE);
+	writer->write_uint32(writer, this->assessment_result);
+	this->encoding = writer->get_buf(writer);
+	this->encoding = chunk_clone(this->encoding);
+	writer->destroy(writer);
+}
+
+METHOD(pb_tnc_msg_t, process, status_t,
+	private_pb_assessment_result_msg_t *this, u_int32_t *offset)
+{
+	bio_reader_t *reader;
+
+	reader = bio_reader_create(this->encoding);
+	reader->read_uint32(reader, &this->assessment_result);
+	reader->destroy(reader);
+
+	if (this->assessment_result < TNC_IMV_EVALUATION_RESULT_COMPLIANT ||
+		this->assessment_result > TNC_IMV_EVALUATION_RESULT_DONT_KNOW)
+	{
+		DBG1(DBG_TNC, "invalid assessment result (%u)",
+					   this->assessment_result);
+		*offset = 0;
+		return FAILED;
+	}
+
+	return SUCCESS;
+}
+
+METHOD(pb_tnc_msg_t, destroy, void,
+	private_pb_assessment_result_msg_t *this)
+{
+	free(this->encoding.ptr);
+	free(this);
+}
+
+METHOD(pb_assessment_result_msg_t, get_assessment_result, u_int32_t,
+	private_pb_assessment_result_msg_t *this)
+{
+	return this->assessment_result;
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t *pb_assessment_result_msg_create_from_data(chunk_t data)
+{
+	private_pb_assessment_result_msg_t *this;
+
+	INIT(this,
+		.public = {
+			.pb_interface = {
+				.get_type = _get_type,
+				.get_encoding = _get_encoding,
+				.build = _build,
+				.process = _process,
+				.destroy = _destroy,
+			},
+			.get_assessment_result = _get_assessment_result,
+		},
+		.type = { PEN_IETF, PB_MSG_ASSESSMENT_RESULT },
+		.encoding = chunk_clone(data),
+	);
+
+	return &this->public.pb_interface;
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t *pb_assessment_result_msg_create(u_int32_t assessment_result)
+{
+	private_pb_assessment_result_msg_t *this;
+
+	INIT(this,
+		.public = {
+			.pb_interface = {
+				.get_type = _get_type,
+				.get_encoding = _get_encoding,
+				.build = _build,
+				.process = _process,
+				.destroy = _destroy,
+			},
+			.get_assessment_result = _get_assessment_result,
+		},
+		.type = { PEN_IETF, PB_MSG_ASSESSMENT_RESULT },
+		.assessment_result = assessment_result,
+	);
+
+	return &this->public.pb_interface;
+}
diff --git a/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_assessment_result_msg.h b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_assessment_result_msg.h
new file mode 100644
index 000000000..11cfdbef2
--- /dev/null
+++ b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_assessment_result_msg.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2010 Sansar Choinyambuu
+ * 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 pb_assessment_result_msg pb_assessment_result_msg
+ * @{ @ingroup tnccs_20
+ */
+
+#ifndef PB_ASSESSMENT_RESULT_MSG_H_
+#define PB_ASSESSMENT_RESULT_MSG_H_
+
+typedef struct pb_assessment_result_msg_t pb_assessment_result_msg_t;
+
+#include "messages/pb_tnc_msg.h"
+
+/**
+ * Class representing the PB-Assessment-Result message type.
+ */
+struct pb_assessment_result_msg_t {
+
+	/**
+	 * PB-TNC Message interface
+	 */
+	pb_tnc_msg_t pb_interface;
+
+	/**
+	 * Get PB Assessment result
+	 *
+	 * @return			PB Assessment result
+	 */
+	u_int32_t (*get_assessment_result)(pb_assessment_result_msg_t *this);
+};
+
+/**
+ * Create a PB-Assessment-Result message from parameters
+ *
+ * @param assessment_result		Assessment result code
+ */
+pb_tnc_msg_t* pb_assessment_result_msg_create(u_int32_t assessment_result);
+
+/**
+ * Create an unprocessed PB-Assessment-Result message from raw data
+ *
+  * @param data		PB-Assessment-Result message data
+ */
+pb_tnc_msg_t* pb_assessment_result_msg_create_from_data(chunk_t data);
+
+#endif /** PB_PA_MSG_H_ @}*/
diff --git a/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_error_msg.c b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_error_msg.c
new file mode 100644
index 000000000..d9910f660
--- /dev/null
+++ b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_error_msg.c
@@ -0,0 +1,352 @@
+/*
+ * Copyright (C) 2010 Sansar Choinyambuu
+ * 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 "pb_error_msg.h"
+
+#include <tnc/tnccs/tnccs.h>
+
+#include <bio/bio_writer.h>
+#include <bio/bio_reader.h>
+#include <pen/pen.h>
+#include <utils/debug.h>
+
+ENUM(pb_tnc_error_code_names, PB_ERROR_UNEXPECTED_BATCH_TYPE,
+							  PB_ERROR_VERSION_NOT_SUPPORTED,
+	"Unexpected Batch Type",
+	"Invalid Parameter",
+	"Local Error",
+	"Unsupported Mandatory Message",
+	"Version Not Supported"
+);
+
+typedef struct private_pb_error_msg_t private_pb_error_msg_t;
+
+/**
+ *   PB-Error message (see section 4.9 of RFC 5793)
+ *
+ *      0                   1                   2                   3
+ *      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |    Flags      |              Error Code Vendor ID             |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |           Error Code          |           Reserved            |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |                Error Parameters (Variable Length)             |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+#define ERROR_FLAG_NONE		0x00
+#define ERROR_FLAG_FATAL	(1<<7)
+#define ERROR_RESERVED	 	0x0000
+#define ERROR_HEADER_SIZE	8
+
+/**
+ * Private data of a pb_error_msg_t object.
+ *
+ */
+struct private_pb_error_msg_t {
+	/**
+	 * Public pb_error_msg_t interface.
+	 */
+	pb_error_msg_t public;
+
+	/**
+	 * PB-TNC message type
+	 */
+	pen_type_t type;
+
+	/**
+	 * Fatal flag
+	 */
+	bool fatal;
+
+	/**
+	 * PB Error Code Vendor ID
+	 */
+	u_int32_t vendor_id;
+
+	/**
+	 * PB Error Code
+	 */
+	u_int16_t error_code;
+
+	/**
+	 * PB Error Offset
+	 */
+	u_int32_t error_offset;
+
+	/**
+	 * Bad PB-TNC version received
+	 */
+	u_int8_t bad_version;
+
+	/**
+	 * Encoded message
+	 */
+	chunk_t encoding;
+
+	/**
+	 * reference count
+	 */
+	refcount_t ref;
+};
+
+METHOD(pb_tnc_msg_t, get_type, pen_type_t,
+	private_pb_error_msg_t *this)
+{
+	return this->type;
+}
+
+METHOD(pb_tnc_msg_t, get_encoding, chunk_t,
+	private_pb_error_msg_t *this)
+{
+	return this->encoding;
+}
+
+METHOD(pb_tnc_msg_t, build, void,
+	private_pb_error_msg_t *this)
+{
+	bio_writer_t *writer;
+
+	if (this->encoding.ptr)
+	{
+		return;
+	}
+
+	/* build message header */
+	writer = bio_writer_create(ERROR_HEADER_SIZE);
+	writer->write_uint8 (writer, this->fatal ?
+						 ERROR_FLAG_FATAL : ERROR_FLAG_NONE);
+	writer->write_uint24(writer, this->vendor_id);
+	writer->write_uint16(writer, this->error_code);
+	writer->write_uint16(writer, ERROR_RESERVED);
+
+	/* build message body */
+	if (this->error_code == PB_ERROR_VERSION_NOT_SUPPORTED)
+	{
+		/* Bad version */
+		writer->write_uint8(writer, this->bad_version);
+		writer->write_uint8(writer, PB_TNC_VERSION); /* Max version */
+		writer->write_uint8(writer, PB_TNC_VERSION); /* Min version */
+		writer->write_uint8(writer, 0x00);           /* Reserved */
+	}
+	else
+	{
+		/* Error Offset */
+		writer->write_uint32(writer, this->error_offset);
+	}
+	this->encoding = writer->get_buf(writer);
+	this->encoding = chunk_clone(this->encoding);
+	writer->destroy(writer);
+}
+
+METHOD(pb_tnc_msg_t, process, status_t,
+	private_pb_error_msg_t *this, u_int32_t *offset)
+{
+	u_int8_t flags, max_version, min_version;
+	u_int16_t reserved;
+	bio_reader_t *reader;
+
+	if (this->encoding.len < ERROR_HEADER_SIZE)
+	{
+		DBG1(DBG_TNC,"%N message is shorter than header size of %u bytes",
+			 pb_tnc_msg_type_names, PB_MSG_ERROR, ERROR_HEADER_SIZE);
+		*offset = 0;
+		return FAILED;
+	}
+
+	/* process message header */
+	reader = bio_reader_create(this->encoding);
+	reader->read_uint8 (reader, &flags);
+	reader->read_uint24(reader, &this->vendor_id);
+	reader->read_uint16(reader, &this->error_code);
+	reader->read_uint16(reader, &reserved);
+	this->fatal = (flags & ERROR_FLAG_FATAL) != ERROR_FLAG_NONE;
+
+	if (this->vendor_id == PEN_IETF && reader->remaining(reader) == 4)
+	{
+		if (this->error_code == PB_ERROR_VERSION_NOT_SUPPORTED)
+		{
+			reader->read_uint8(reader, &this->bad_version);
+			reader->read_uint8(reader, &max_version);
+			reader->read_uint8(reader, &min_version);
+		}
+		else
+		{
+			reader->read_uint32(reader, &this->error_offset);
+		}
+	}
+	reader->destroy(reader);
+
+	return SUCCESS;
+}
+
+METHOD(pb_tnc_msg_t, get_ref, pb_tnc_msg_t*,
+	private_pb_error_msg_t *this)
+{
+	ref_get(&this->ref);
+	return &this->public.pb_interface;
+}
+
+METHOD(pb_tnc_msg_t, destroy, void,
+	private_pb_error_msg_t *this)
+{
+	if (ref_put(&this->ref))
+	{
+		free(this->encoding.ptr);
+		free(this);
+	}
+}
+
+METHOD(pb_error_msg_t, get_fatal_flag, bool,
+	private_pb_error_msg_t *this)
+{
+	return this->fatal;
+}
+
+METHOD(pb_error_msg_t, get_vendor_id, u_int32_t,
+	private_pb_error_msg_t *this)
+{
+	return this->vendor_id;
+}
+
+METHOD(pb_error_msg_t, get_error_code, u_int16_t,
+	private_pb_error_msg_t *this)
+{
+	return this->error_code;
+}
+
+METHOD(pb_error_msg_t, get_offset, u_int32_t,
+	private_pb_error_msg_t *this)
+{
+	return this->error_offset;
+}
+
+METHOD(pb_error_msg_t, get_bad_version, u_int8_t,
+	private_pb_error_msg_t *this)
+{
+	return this->bad_version;
+}
+
+METHOD(pb_error_msg_t, set_bad_version, void,
+	private_pb_error_msg_t *this, u_int8_t version)
+{
+	this->bad_version = version;
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t* pb_error_msg_create(bool fatal, u_int32_t vendor_id,
+								  pb_tnc_error_code_t error_code)
+{
+	private_pb_error_msg_t *this;
+
+	INIT(this,
+		.public = {
+			.pb_interface = {
+				.get_type = _get_type,
+				.get_encoding = _get_encoding,
+				.build = _build,
+				.process = _process,
+				.get_ref = _get_ref,
+				.destroy = _destroy,
+			},
+			.get_fatal_flag = _get_fatal_flag,
+			.get_vendor_id = _get_vendor_id,
+			.get_error_code = _get_error_code,
+			.get_offset = _get_offset,
+			.get_bad_version = _get_bad_version,
+			.set_bad_version = _set_bad_version,
+		},
+		.type = { PEN_IETF, PB_MSG_ERROR },
+		.ref = 1,
+		.fatal = fatal,
+		.vendor_id = vendor_id,
+		.error_code = error_code,
+	);
+
+	return &this->public.pb_interface;
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t* pb_error_msg_create_with_offset(bool fatal, u_int32_t vendor_id,
+											  pb_tnc_error_code_t error_code,
+											  u_int32_t error_offset)
+{
+	private_pb_error_msg_t *this;
+
+	INIT(this,
+		.public = {
+			.pb_interface = {
+				.get_type = _get_type,
+				.get_encoding = _get_encoding,
+				.build = _build,
+				.process = _process,
+				.get_ref = _get_ref,
+				.destroy = _destroy,
+			},
+			.get_fatal_flag = _get_fatal_flag,
+			.get_vendor_id = _get_vendor_id,
+			.get_error_code = _get_error_code,
+			.get_offset = _get_offset,
+			.get_bad_version = _get_bad_version,
+			.set_bad_version = _set_bad_version,
+		},
+		.type = { PEN_IETF, PB_MSG_ERROR },
+		.ref = 1,
+		.fatal = fatal,
+		.vendor_id = vendor_id,
+		.error_code = error_code,
+		.error_offset = error_offset,
+	);
+
+	return &this->public.pb_interface;
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t *pb_error_msg_create_from_data(chunk_t data)
+{
+	private_pb_error_msg_t *this;
+
+	INIT(this,
+		.public = {
+			.pb_interface = {
+				.get_type = _get_type,
+				.get_encoding = _get_encoding,
+				.build = _build,
+				.process = _process,
+				.get_ref = _get_ref,
+				.destroy = _destroy,
+			},
+			.get_fatal_flag = _get_fatal_flag,
+			.get_vendor_id = _get_vendor_id,
+			.get_error_code = _get_error_code,
+			.get_offset = _get_offset,
+			.get_bad_version = _get_bad_version,
+			.set_bad_version = _set_bad_version,
+		},
+		.type = { PEN_IETF, PB_MSG_ERROR },
+		.ref = 1,
+		.encoding = chunk_clone(data),
+	);
+
+	return &this->public.pb_interface;
+}
+
diff --git a/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_error_msg.h b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_error_msg.h
new file mode 100644
index 000000000..9c0ad82a6
--- /dev/null
+++ b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_error_msg.h
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2010 Sansar Choinyambuu
+ * 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 pb_error_msg pb_error_msg
+ * @{ @ingroup tnccs_20
+ */
+
+#ifndef PB_ERROR_MSG_H_
+#define PB_ERROR_MSG_H_
+
+typedef enum pb_tnc_error_code_t pb_tnc_error_code_t;
+typedef struct pb_error_msg_t pb_error_msg_t;
+
+#include "messages/pb_tnc_msg.h"
+
+/**
+ * PB-TNC Error Codes as defined in section 4.9.1 of RFC 5793
+ */
+enum  pb_tnc_error_code_t {
+	PB_ERROR_UNEXPECTED_BATCH_TYPE =		0,
+	PB_ERROR_INVALID_PARAMETER =			1,
+	PB_ERROR_LOCAL_ERROR =					2,
+	PB_ERROR_UNSUPPORTED_MANDATORY_MSG =	3,
+	PB_ERROR_VERSION_NOT_SUPPORTED =		4
+};
+
+/**
+ * enum name for pb_tnc_error_code_t.
+ */
+extern enum_name_t *pb_tnc_error_code_names;
+
+/**
+ * Class representing the PB-Error message type.
+ */
+struct pb_error_msg_t {
+
+	/**
+	 * PB-TNC Message interface
+	 */
+	pb_tnc_msg_t pb_interface;
+
+	/**
+	 * Get the fatal flag
+	 *
+	 * @return				fatal flag
+	 */
+	bool (*get_fatal_flag)(pb_error_msg_t *this);
+
+	/**
+	 * Get PB Error code Vendor ID
+	 *
+	 * @return				PB Error Code Vendor ID
+	 */
+	u_int32_t (*get_vendor_id)(pb_error_msg_t *this);
+
+	/**
+	 * Get PB Error Code
+	 *
+	 * @return				PB Error Code
+	 */
+	u_int16_t (*get_error_code)(pb_error_msg_t *this);
+
+	/**
+	 * Get the PB Error Offset
+	 *
+	 * @return				PB Error Offset
+	 */
+	u_int32_t (*get_offset)(pb_error_msg_t *this);
+
+	/**
+	 * Get the PB Bad Version
+	 *
+	 * @return				PB Bad Version
+	 */
+	u_int8_t (*get_bad_version)(pb_error_msg_t *this);
+
+	/**
+	 * Set the PB Bad Version
+	 *
+	 * @param version		PB Bad Version
+	 */
+	void (*set_bad_version)(pb_error_msg_t *this, u_int8_t version);
+};
+
+/**
+ * Create a PB-Error message from parameters
+ *
+ * @param fatal				fatal flag
+ * @param vendor_id			Error Code Vendor ID
+ * @param error_code		Error Code
+ */
+pb_tnc_msg_t* pb_error_msg_create(bool fatal, u_int32_t vendor_id,
+								  pb_tnc_error_code_t error_code);
+	
+/**
+ * Create a PB-Error message from parameters with offset field
+ *
+ * @param fatal				fatal flag
+ * @param vendor_id			Error Code Vendor ID
+ * @param error_code		Error Code
+ * @param error_offset		Error Offset
+ */
+pb_tnc_msg_t* pb_error_msg_create_with_offset(bool fatal, u_int32_t vendor_id,
+											  pb_tnc_error_code_t error_code,
+											  u_int32_t error_offset);
+
+/**
+ * Create an unprocessed PB-Error message from raw data
+ *
+ * @param data				PB-Error message data
+ */
+pb_tnc_msg_t* pb_error_msg_create_from_data(chunk_t data);
+
+#endif /** PB_PA_MSG_H_ @}*/
diff --git a/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_experimental_msg.c b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_experimental_msg.c
new file mode 100644
index 000000000..c6290887c
--- /dev/null
+++ b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_experimental_msg.c
@@ -0,0 +1,102 @@
+/*
+ * 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 "pb_experimental_msg.h"
+
+typedef struct private_pb_experimental_msg_t private_pb_experimental_msg_t;
+
+/**
+ * Private data of a pb_experimental_msg_t object.
+ *
+ */
+struct private_pb_experimental_msg_t {
+	/**
+	 * Public pb_experimental_msg_t interface.
+	 */
+	pb_experimental_msg_t public;
+
+	/**
+	 * PB-TNC message type
+	 */
+	pen_type_t type;
+
+	/**
+	 * Encoded message
+	 */
+	chunk_t encoding;
+};
+
+METHOD(pb_tnc_msg_t, get_type, pen_type_t,
+	private_pb_experimental_msg_t *this)
+{
+	return this->type;
+}
+
+METHOD(pb_tnc_msg_t, get_encoding, chunk_t,
+	private_pb_experimental_msg_t *this)
+{
+	return this->encoding;
+}
+
+METHOD(pb_tnc_msg_t, build, void,
+	private_pb_experimental_msg_t *this)
+{
+	/* nothing to do since message contents equal encoding */
+}
+
+METHOD(pb_tnc_msg_t, process, status_t,
+	private_pb_experimental_msg_t *this, u_int32_t *offset)
+{
+	return SUCCESS;
+}
+
+METHOD(pb_tnc_msg_t, destroy, void,
+	private_pb_experimental_msg_t *this)
+{
+	free(this->encoding.ptr);
+	free(this);
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t *pb_experimental_msg_create_from_data(chunk_t data)
+{
+	private_pb_experimental_msg_t *this;
+
+	INIT(this,
+		.public = {
+			.pb_interface = {
+				.get_type = _get_type,
+				.get_encoding = _get_encoding,
+				.build = _build,
+				.process = _process,
+				.destroy = _destroy,
+			},
+		},
+		.type = { PEN_IETF, PB_MSG_EXPERIMENTAL },
+		.encoding = chunk_clone(data),
+	);
+
+	return &this->public.pb_interface;
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t *pb_experimental_msg_create(chunk_t body)
+{
+	return pb_experimental_msg_create_from_data(body);
+}
diff --git a/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_experimental_msg.h b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_experimental_msg.h
new file mode 100644
index 000000000..fb9ede1a8
--- /dev/null
+++ b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_experimental_msg.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2010 Sansar Choinyambuu
+ * 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 pb_experimental_msg pb_experimental_msg
+ * @{ @ingroup tnccs_20
+ */
+
+#ifndef PB_EXPERIMENTAL_MSG_H_
+#define PB_EXPERIMENTAL_MSG_H_
+
+typedef struct pb_experimental_msg_t pb_experimental_msg_t;
+
+#include "messages/pb_tnc_msg.h"
+
+/**
+ * Class representing the PB-Experimental message type.
+ */
+struct pb_experimental_msg_t {
+
+	/**
+	 * PB-TNC Message interface
+	 */
+	pb_tnc_msg_t pb_interface;
+};
+
+/**
+ * Create a PB-Experimental message from parameters
+ *
+ * @param body			message body
+ */
+pb_tnc_msg_t* pb_experimental_msg_create(chunk_t body);
+
+/**
+ * Create an unprocessed PB-Experimental message from raw data
+ *
+ * @param data			PB-Experimental message data
+ */
+pb_tnc_msg_t* pb_experimental_msg_create_from_data(chunk_t data);
+
+#endif /** PB_EXPERIMENTAL_MSG_H_ @}*/
diff --git a/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_language_preference_msg.c b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_language_preference_msg.c
new file mode 100644
index 000000000..f14f28980
--- /dev/null
+++ b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_language_preference_msg.c
@@ -0,0 +1,179 @@
+/*
+ * Copyright (C) 2010 Sansar Choinyambuu
+ * 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 "pb_language_preference_msg.h"
+
+#include <bio/bio_writer.h>
+#include <bio/bio_reader.h>
+#include <utils/debug.h>
+
+typedef struct private_pb_language_preference_msg_t private_pb_language_preference_msg_t;
+
+/**
+ *   PB-Language-Preference message (see section 4.10 of RFC 5793)
+ *
+ *      0                   1                   2                   3
+ *      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |              Language Preference (Variable Length)            |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+#define PB_LANG_PREFIX			"Accept-Language: "
+#define PB_LANG_PREFIX_LEN		strlen(PB_LANG_PREFIX)
+
+/**
+ * Private data of a pb_language_preference_msg_t object.
+ *
+ */
+struct private_pb_language_preference_msg_t {
+	/**
+	 * Public pb_access_recommendation_msg_t interface.
+	 */
+	pb_language_preference_msg_t public;
+
+	/**
+	 * PB-TNC message type
+	 */
+	pen_type_t type;
+
+	/**
+	 * Language preference
+	 */
+	chunk_t language_preference;
+
+	/**
+	 * Encoded message
+	 */
+	chunk_t encoding;
+};
+
+METHOD(pb_tnc_msg_t, get_type, pen_type_t,
+	private_pb_language_preference_msg_t *this)
+{
+	return this->type;
+}
+
+METHOD(pb_tnc_msg_t, get_encoding, chunk_t,
+	private_pb_language_preference_msg_t *this)
+{
+	return this->encoding;
+}
+
+METHOD(pb_tnc_msg_t, build, void,
+	private_pb_language_preference_msg_t *this)
+{
+	if (this->encoding.ptr)
+	{
+		return;
+	}
+	this->encoding = chunk_cat("cc",
+		 	 			chunk_create(PB_LANG_PREFIX, PB_LANG_PREFIX_LEN),
+						this->language_preference);
+}
+
+METHOD(pb_tnc_msg_t, process, status_t,
+	private_pb_language_preference_msg_t *this, u_int32_t *offset)
+{
+	chunk_t lang;
+
+	if (this->encoding.len >= PB_LANG_PREFIX_LEN &&
+		memeq(this->encoding.ptr, PB_LANG_PREFIX, PB_LANG_PREFIX_LEN))
+	{
+		lang = chunk_skip(this->encoding, PB_LANG_PREFIX_LEN);
+		this->language_preference = lang.len ? chunk_clone(lang) : chunk_empty;
+	}
+	else
+    {
+		DBG1(DBG_TNC, "language preference must be preceded by '%s'",
+					   PB_LANG_PREFIX);
+		*offset = 0;
+		return FAILED;
+	}
+
+	if (this->language_preference.len &&
+		this->language_preference.ptr[this->language_preference.len-1] == '\0')
+	{
+		DBG1(DBG_TNC, "language preference must not be null terminated");
+		*offset = PB_LANG_PREFIX_LEN + this->language_preference.len - 1;
+		return FAILED;
+	}
+
+	return SUCCESS;
+}
+
+METHOD(pb_tnc_msg_t, destroy, void,
+	private_pb_language_preference_msg_t *this)
+{
+	free(this->encoding.ptr);
+	free(this->language_preference.ptr);
+	free(this);
+}
+
+METHOD(pb_language_preference_msg_t, get_language_preference, chunk_t,
+	private_pb_language_preference_msg_t *this)
+{
+	return this->language_preference;
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t *pb_language_preference_msg_create_from_data(chunk_t data)
+{
+	private_pb_language_preference_msg_t *this;
+
+	INIT(this,
+		.public = {
+			.pb_interface = {
+				.get_type = _get_type,
+				.get_encoding = _get_encoding,
+				.build = _build,
+				.process = _process,
+				.destroy = _destroy,
+			},
+			.get_language_preference = _get_language_preference,
+		},
+		.type = { PEN_IETF, PB_MSG_LANGUAGE_PREFERENCE },
+		.encoding = chunk_clone(data),
+	);
+
+	return &this->public.pb_interface;
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t *pb_language_preference_msg_create(chunk_t language_preference)
+{
+	private_pb_language_preference_msg_t *this;
+
+	INIT(this,
+		.public = {
+			.pb_interface = {
+				.get_type = _get_type,
+				.get_encoding = _get_encoding,
+				.build = _build,
+				.process = _process,
+				.destroy = _destroy,
+			},
+			.get_language_preference = _get_language_preference,
+		},
+		.type = { PEN_IETF, PB_MSG_LANGUAGE_PREFERENCE },
+		.language_preference = chunk_clone(language_preference),
+	);
+
+	return &this->public.pb_interface;
+}
diff --git a/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_language_preference_msg.h b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_language_preference_msg.h
new file mode 100644
index 000000000..512cab301
--- /dev/null
+++ b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_language_preference_msg.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2010 Sansar Choinyambuu
+ * 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 pb_language_preference_msg pb_language_preference_msg
+ * @{ @ingroup tnccs_20
+ */
+
+#ifndef PB_LANGUAGE_PREFERENCE_MSG_H_
+#define PB_LANGUAGE_PREFERENCE_MSG_H_
+
+typedef struct pb_language_preference_msg_t pb_language_preference_msg_t;
+
+#include "messages/pb_tnc_msg.h"
+
+/**
+ * Class representing the PB-Language-Preference message type.
+ */
+struct pb_language_preference_msg_t {
+
+	/**
+	 * PB-TNC Message interface
+	 */
+	pb_tnc_msg_t pb_interface;
+
+	/**
+	 * Get PB Language Preference
+	 *
+	 * @return			Language preference
+	 */
+	chunk_t (*get_language_preference)(pb_language_preference_msg_t *this);
+};
+
+/**
+ * Create a PB-Language-Preference message from parameters
+ *
+ * @param language_preference		Preferred language(s)
+ */
+pb_tnc_msg_t* pb_language_preference_msg_create(chunk_t language_preference);
+
+/**
+ * Create an unprocessed PB-Language-Preference message from raw data
+ *
+  * @param data		PB-Language-Preference message data
+ */
+pb_tnc_msg_t* pb_language_preference_msg_create_from_data(chunk_t data);
+
+#endif /** PB_PA_MSG_H_ @}*/
diff --git a/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_pa_msg.c b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_pa_msg.c
new file mode 100644
index 000000000..a9a097bd4
--- /dev/null
+++ b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_pa_msg.c
@@ -0,0 +1,274 @@
+/*
+ * Copyright (C) 2010 Sansar Choinyanbuu
+ * 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 "pb_pa_msg.h"
+
+#include <tnc/tnccs/tnccs.h>
+
+#include <bio/bio_writer.h>
+#include <bio/bio_reader.h>
+#include <pen/pen.h>
+#include <utils/debug.h>
+
+typedef struct private_pb_pa_msg_t private_pb_pa_msg_t;
+
+/**
+ *   PB-PA message
+ *
+ *      0                   1                   2                   3
+ *      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |    Flags      |               PA Message Vendor ID            |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |                           PA Subtype                          |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |  Posture Collector Identifier | Posture Validator Identifier  |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |                 PA Message Body (Variable Length)             |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+#define PA_FLAG_NONE			0x00
+#define PA_FLAG_EXCL			(1<<7)
+#define PA_RESERVED_SUBTYPE		0xffffffff
+
+
+/**
+ * Private data of a pb_pa_msg_t object.
+ *
+ */
+struct private_pb_pa_msg_t {
+	/**
+	 * Public pb_pa_msg_t interface.
+	 */
+	pb_pa_msg_t public;
+
+	/**
+	 * PB-TNC message type
+	 */
+	pen_type_t type;
+
+	/**
+	 * Exclusive flag
+	 */
+	bool excl;
+
+	/**
+	 * Vendor-specific PA Subtype
+	 */
+	pen_type_t subtype;
+
+	/**
+	 * Posture Validator Identifier
+	 */
+	u_int16_t collector_id;
+
+	/**
+	 * Posture Validator Identifier
+	 */
+	u_int16_t validator_id;
+
+	/**
+	 * PA Message Body
+	 */
+	chunk_t msg_body;
+
+	/**
+	 * Encoded message
+	 */
+	chunk_t encoding;
+};
+
+METHOD(pb_tnc_msg_t, get_type, pen_type_t,
+	private_pb_pa_msg_t *this)
+{
+	return this->type;
+}
+
+METHOD(pb_tnc_msg_t, get_encoding, chunk_t,
+	private_pb_pa_msg_t *this)
+{
+	return this->encoding;
+}
+
+METHOD(pb_tnc_msg_t, build, void,
+	private_pb_pa_msg_t *this)
+{
+	chunk_t msg_header;
+	bio_writer_t *writer;
+
+	if (this->encoding.ptr)
+	{
+		return;
+	}
+
+	/* build message header */
+	writer = bio_writer_create(64);
+	writer->write_uint8 (writer, this->excl ? PA_FLAG_EXCL : PA_FLAG_NONE);
+	writer->write_uint24(writer, this->subtype.vendor_id);
+	writer->write_uint32(writer, this->subtype.type);
+	writer->write_uint16(writer, this->collector_id);
+	writer->write_uint16(writer, this->validator_id);
+	msg_header = writer->get_buf(writer);
+
+	/* create encoding by concatenating message header and message body */
+	this->encoding = chunk_cat("cc", msg_header, this->msg_body);
+	writer->destroy(writer);
+}
+
+METHOD(pb_tnc_msg_t, process, status_t,
+	private_pb_pa_msg_t *this, u_int32_t *offset)
+{
+	u_int8_t flags;
+	size_t msg_body_len;
+	bio_reader_t *reader;
+
+	/* process message header */
+	reader = bio_reader_create(this->encoding);
+	reader->read_uint8 (reader, &flags);
+	reader->read_uint24(reader, &this->subtype.vendor_id);
+	reader->read_uint32(reader, &this->subtype.type);
+	reader->read_uint16(reader, &this->collector_id);
+	reader->read_uint16(reader, &this->validator_id);
+	this->excl = ((flags & PA_FLAG_EXCL) != PA_FLAG_NONE);
+
+	/* process message body */
+	msg_body_len = reader->remaining(reader);
+	if (msg_body_len)
+	{
+		reader->read_data(reader, msg_body_len, &this->msg_body);
+		this->msg_body = chunk_clone(this->msg_body);
+	}
+	reader->destroy(reader);
+
+	if (this->subtype.vendor_id == PEN_RESERVED)
+	{
+		DBG1(DBG_TNC, "Vendor ID 0x%06x is reserved", PEN_RESERVED);
+		*offset = 1;
+		return FAILED;
+	}
+
+	if (this->subtype.type == PA_RESERVED_SUBTYPE)
+	{
+		DBG1(DBG_TNC, "PA Subtype 0x%08x is reserved", PA_RESERVED_SUBTYPE);
+		*offset = 4;
+		return FAILED;
+	}
+
+	return SUCCESS;
+}
+
+METHOD(pb_tnc_msg_t, destroy, void,
+	private_pb_pa_msg_t *this)
+{
+	free(this->encoding.ptr);
+	free(this->msg_body.ptr);
+	free(this);
+}
+
+METHOD(pb_pa_msg_t, get_subtype, pen_type_t,
+	private_pb_pa_msg_t *this)
+{
+	return this->subtype;
+}
+
+METHOD(pb_pa_msg_t, get_collector_id, u_int16_t,
+	private_pb_pa_msg_t *this)
+{
+	return this->collector_id;
+}
+
+METHOD(pb_pa_msg_t, get_validator_id, u_int16_t,
+	private_pb_pa_msg_t *this)
+{
+	return this->validator_id;
+}
+
+METHOD(pb_pa_msg_t, get_body, chunk_t,
+	private_pb_pa_msg_t *this)
+{
+	return this->msg_body;
+}
+
+METHOD(pb_pa_msg_t, get_exclusive_flag, bool,
+	private_pb_pa_msg_t *this)
+{
+	return this->excl;
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t *pb_pa_msg_create_from_data(chunk_t data)
+{
+	private_pb_pa_msg_t *this;
+
+	INIT(this,
+		.public = {
+			.pb_interface = {
+				.get_type = _get_type,
+				.get_encoding = _get_encoding,
+				.process = _process,
+				.destroy = _destroy,
+			},
+			.get_subtype = _get_subtype,
+			.get_collector_id = _get_collector_id,
+			.get_validator_id = _get_validator_id,
+			.get_body = _get_body,
+			.get_exclusive_flag = _get_exclusive_flag,
+		},
+		.type = { PEN_IETF, PB_MSG_PA },
+		.encoding = chunk_clone(data),
+	);
+
+	return &this->public.pb_interface;
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t *pb_pa_msg_create(u_int32_t vendor_id, u_int32_t subtype,
+							   u_int16_t collector_id, u_int16_t validator_id,
+							   bool excl, chunk_t msg_body)
+{
+	private_pb_pa_msg_t *this;
+
+	INIT(this,
+		.public = {
+			.pb_interface = {
+				.get_type = _get_type,
+				.get_encoding = _get_encoding,
+				.build = _build,
+				.process = _process,
+				.destroy = _destroy,
+			},
+			.get_subtype= _get_subtype,
+			.get_collector_id = _get_collector_id,
+			.get_validator_id = _get_validator_id,
+			.get_body = _get_body,
+			.get_exclusive_flag = _get_exclusive_flag,
+		},
+		.type = { PEN_IETF, PB_MSG_PA },
+		.subtype = { vendor_id, subtype },
+		.collector_id = collector_id,
+		.validator_id = validator_id,
+		.excl = excl,
+		.msg_body = chunk_clone(msg_body),
+	);
+
+	return &this->public.pb_interface;
+}
diff --git a/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_pa_msg.h b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_pa_msg.h
new file mode 100644
index 000000000..093bb45ae
--- /dev/null
+++ b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_pa_msg.h
@@ -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.
+ */
+
+/**
+ * @defgroup pb_pa_msg pb_pa_msg
+ * @{ @ingroup tnccs_20
+ */
+
+#ifndef PB_PA_MSG_H_
+#define PB_PA_MSG_H_
+
+typedef struct pb_pa_msg_t pb_pa_msg_t;
+
+#include "messages/pb_tnc_msg.h"
+
+#include <pen/pen.h>
+
+/**
+ * Class representing the PB-PA message type.
+ */
+struct pb_pa_msg_t {
+
+	/**
+	 * PB-TNC Message interface
+	 */
+	pb_tnc_msg_t pb_interface;
+
+	/**
+	 * Get PA Message Vendor ID and Subtype
+	 *
+	 * @return				Vendor-specific PA Subtype
+	 */
+	pen_type_t (*get_subtype)(pb_pa_msg_t *this);
+
+	/**
+	 * Get Posture Collector ID
+	 *
+	 * @return				Posture Collector ID
+	 */
+	u_int16_t (*get_collector_id)(pb_pa_msg_t *this);
+
+	/**
+	 * Get Posture Validator ID
+	 *
+	 * @return				Posture Validator ID
+	 */
+	u_int16_t (*get_validator_id)(pb_pa_msg_t *this);
+
+	/**
+	 * Get the PA Message Body
+	 *
+	 * @return				PA Message Body
+	 */
+	chunk_t (*get_body)(pb_pa_msg_t *this);
+
+	/**
+	 * Get the exclusive flag
+	 *
+	 * @return				exclusive flag
+	 */
+	bool (*get_exclusive_flag)(pb_pa_msg_t *this);
+
+};
+
+/**
+ * Create a PB-PA message from parameters
+ *
+ * @param vendor_id			PA Message Vendor ID
+ * @param subtype			PA Subtype		
+ * @param collector_id		Posture Collector ID
+ * @param validator_id		Posture Validator ID
+ * @param excl				Exclusive Flag
+ * @param msg_body		 	PA Message Body
+ */
+pb_tnc_msg_t *pb_pa_msg_create(u_int32_t vendor_id, u_int32_t subtype,
+							   u_int16_t collector_id, u_int16_t validator_id,
+							   bool excl, chunk_t msg_body);
+
+/**
+ * Create an unprocessed PB-PA message from raw data
+ *
+  * @param data		PB-PA message data
+ */
+pb_tnc_msg_t* pb_pa_msg_create_from_data(chunk_t data);
+
+#endif /** PB_PA_MSG_H_ @}*/
diff --git a/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_reason_string_msg.c b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_reason_string_msg.c
new file mode 100644
index 000000000..cafc4ec54
--- /dev/null
+++ b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_reason_string_msg.c
@@ -0,0 +1,217 @@
+/*
+ * Copyright (C) 2010 Sansar Choinyambuu
+ * 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 "pb_reason_string_msg.h"
+
+#include <bio/bio_writer.h>
+#include <bio/bio_reader.h>
+#include <utils/debug.h>
+
+typedef struct private_pb_reason_string_msg_t private_pb_reason_string_msg_t;
+
+/**
+ *   PB-Language-Preference message (see section 4.11 of RFC 5793)
+ *
+ *      0                   1                   2                   3
+ *      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |                      Reason String Length                     |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |                Reason String (Variable Length)                |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     | Lang Code Len | Reason String Language Code (Variable Length) |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+/**
+ * Private data of a pb_reason_string_msg_t object.
+ *
+ */
+struct private_pb_reason_string_msg_t {
+	/**
+	 * Public pb_reason_string_msg_t interface.
+	 */
+	pb_reason_string_msg_t public;
+
+	/**
+	 * PB-TNC message type
+	 */
+	pen_type_t type;
+
+	/**
+	 * Reason string
+	 */
+	chunk_t reason_string;
+
+	/**
+	 * Language code
+	 */
+	chunk_t language_code;
+
+	/**
+	 * Encoded message
+	 */
+	chunk_t encoding;
+};
+
+METHOD(pb_tnc_msg_t, get_type, pen_type_t,
+	private_pb_reason_string_msg_t *this)
+{
+	return this->type;
+}
+
+METHOD(pb_tnc_msg_t, get_encoding, chunk_t,
+	private_pb_reason_string_msg_t *this)
+{
+	return this->encoding;
+}
+
+METHOD(pb_tnc_msg_t, build, void,
+	private_pb_reason_string_msg_t *this)
+{
+	bio_writer_t *writer;
+
+	if (this->encoding.ptr)
+	{
+		return;
+	}
+	writer = bio_writer_create(64);
+	writer->write_data32(writer, this->reason_string);
+	writer->write_data8 (writer, this->language_code);
+
+	this->encoding = writer->get_buf(writer);
+	this->encoding = chunk_clone(this->encoding);
+	writer->destroy(writer);
+}
+
+METHOD(pb_tnc_msg_t, process, status_t,
+	private_pb_reason_string_msg_t *this, u_int32_t *offset)
+{
+	bio_reader_t *reader;
+
+	reader = bio_reader_create(this->encoding);
+	if (!reader->read_data32(reader, &this->reason_string))
+	{
+		DBG1(DBG_TNC, "could not parse reason string");
+		reader->destroy(reader);
+		*offset = 0;
+		return FAILED;
+	};
+	this->reason_string = chunk_clone(this->reason_string);
+
+	if (this->reason_string.len &&
+		this->reason_string.ptr[this->reason_string.len-1] == '\0')
+	{
+		DBG1(DBG_TNC, "reason string must not be null terminated");
+		reader->destroy(reader);
+		*offset = 3 + this->reason_string.len;
+		return FAILED;
+	}
+
+	if (!reader->read_data8(reader, &this->language_code))
+	{
+		DBG1(DBG_TNC, "could not parse language code");
+		reader->destroy(reader);
+		*offset = 4 + this->reason_string.len;
+		return FAILED;
+	};
+	this->language_code = chunk_clone(this->language_code);
+	reader->destroy(reader);
+
+	if (this->language_code.len &&
+		this->language_code.ptr[this->language_code.len-1] == '\0')
+	{
+		DBG1(DBG_TNC, "language code must not be null terminated");
+		*offset = 4 + this->reason_string.len + this->language_code.len;
+		return FAILED;
+	}
+
+	return SUCCESS;
+}
+
+METHOD(pb_tnc_msg_t, destroy, void,
+	private_pb_reason_string_msg_t *this)
+{
+	free(this->encoding.ptr);
+	free(this->reason_string.ptr);
+	free(this->language_code.ptr);
+	free(this);
+}
+
+METHOD(pb_reason_string_msg_t, get_reason_string, chunk_t,
+	private_pb_reason_string_msg_t *this)
+{
+	return this->reason_string;
+}
+
+METHOD(pb_reason_string_msg_t, get_language_code, chunk_t,
+	private_pb_reason_string_msg_t *this)
+{
+	return this->language_code;
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t *pb_reason_string_msg_create_from_data(chunk_t data)
+{
+	private_pb_reason_string_msg_t *this;
+
+	INIT(this,
+		.public = {
+			.pb_interface = {
+				.get_type = _get_type,
+				.get_encoding = _get_encoding,
+				.build = _build,
+				.process = _process,
+				.destroy = _destroy,
+			},
+			.get_reason_string = _get_reason_string,
+			.get_language_code = _get_language_code,
+		},
+		.type = { PEN_IETF, PB_MSG_REASON_STRING },
+		.encoding = chunk_clone(data),
+	);
+
+	return &this->public.pb_interface;
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t *pb_reason_string_msg_create(chunk_t reason_string,
+										  chunk_t language_code)
+{
+	private_pb_reason_string_msg_t *this;
+
+	INIT(this,
+		.public = {
+			.pb_interface = {
+				.get_type = _get_type,
+				.get_encoding = _get_encoding,
+				.build = _build,
+				.process = _process,
+				.destroy = _destroy,
+			},
+			.get_reason_string = _get_reason_string,
+			.get_language_code = _get_language_code,
+		},
+		.type = { PEN_IETF, PB_MSG_REASON_STRING },
+		.reason_string = chunk_clone(reason_string),
+		.language_code = chunk_clone(language_code),
+	);
+
+	return &this->public.pb_interface;
+}
diff --git a/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_reason_string_msg.h b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_reason_string_msg.h
new file mode 100644
index 000000000..65e3e880d
--- /dev/null
+++ b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_reason_string_msg.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2010 Sansar Choinyambuu
+ * 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 pb_reason_string_msg pb_reason_string_msg
+ * @{ @ingroup tnccs_20
+ */
+
+#ifndef PB_REASON_STRING_MSG_H_
+#define PB_REASON_STRING_MSG_H_
+
+typedef struct pb_reason_string_msg_t pb_reason_string_msg_t;
+
+#include "messages/pb_tnc_msg.h"
+
+/**
+ * Class representing the PB-Reason-String message type.
+ */
+struct pb_reason_string_msg_t {
+
+	/**
+	 * PB-TNC Message interface
+	 */
+	pb_tnc_msg_t pb_interface;
+
+	/**
+	 * Get Reason String
+	 *
+	 * @return			Reason string
+	 */
+	chunk_t (*get_reason_string)(pb_reason_string_msg_t *this);
+
+	/**
+	 * Get Reason String Language Code
+	 *
+	 * @return			Language code
+	 */
+	chunk_t (*get_language_code)(pb_reason_string_msg_t *this);
+};
+
+/**
+ * Create a PB-Reason-String message from parameters
+ *
+ * @param reason_string		Reason string
+  * @param language_code	Language code
+ */
+pb_tnc_msg_t* pb_reason_string_msg_create(chunk_t reason_string,
+										  chunk_t language_code);
+
+/**
+ * Create an unprocessed PB-Reason-String message from raw data
+ *
+  * @param data		PB-Reason-String message data
+ */
+pb_tnc_msg_t* pb_reason_string_msg_create_from_data(chunk_t data);
+
+#endif /** PB_PA_MSG_H_ @}*/
diff --git a/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_remediation_parameters_msg.c b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_remediation_parameters_msg.c
new file mode 100644
index 000000000..8dc590657
--- /dev/null
+++ b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_remediation_parameters_msg.c
@@ -0,0 +1,311 @@
+/*
+ * 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 "pb_remediation_parameters_msg.h"
+
+#include <bio/bio_writer.h>
+#include <bio/bio_reader.h>
+#include <utils/debug.h>
+
+ENUM(pb_tnc_remed_param_type_names, PB_REMEDIATION_URI, PB_REMEDIATION_STRING,
+	"Remediation-URI",
+	"Remediation-String"
+);
+
+typedef struct private_pb_remediation_parameters_msg_t private_pb_remediation_parameters_msg_t;
+
+/**
+ *   PB-Remediation-Parameters message (see section 4.8 of RFC 5793)
+ *
+ *      0                   1                   2                   3
+ *      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |    Reserved   |       Remediation Parameters Vendor ID        |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |                  Remediation Parameters Type                  |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |            Remediation Parameters (Variable Length)           |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *     0                   1                   2                   3
+ *     0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |                   Remediation String Length                   |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     |                Remediation String (Variable Length)           |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *     | Lang Code Len |  Remediation String Lang Code (Variable Len)  |
+ *     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+/**
+ * Private data of a pb_remediation_parameters_msg_t object.
+ *
+ */
+struct private_pb_remediation_parameters_msg_t {
+	/**
+	 * Public pb_remediation_parameters_msg_t interface.
+	 */
+	pb_remediation_parameters_msg_t public;
+
+	/**
+	 * PB-TNC message type
+	 */
+	pen_type_t type;
+
+	/**
+	 * Remediation Parameters Type
+	 */
+	pen_type_t parameters_type;
+
+	/**
+	 * Remediation Parameters
+	 */
+	chunk_t parameters;
+
+	/**
+	 * Remediation String
+	 */
+	chunk_t string;
+
+	/**
+	 * Remediation Language Code
+	 */
+	chunk_t lang_code;
+
+	/**
+	 * Encoded message
+	 */
+	chunk_t encoding;
+};
+
+METHOD(pb_tnc_msg_t, get_type, pen_type_t,
+	private_pb_remediation_parameters_msg_t *this)
+{
+	return this->type;
+}
+
+METHOD(pb_tnc_msg_t, get_encoding, chunk_t,
+	private_pb_remediation_parameters_msg_t *this)
+{
+	return this->encoding;
+}
+
+METHOD(pb_tnc_msg_t, build, void,
+	private_pb_remediation_parameters_msg_t *this)
+{
+	bio_writer_t *writer;
+
+	if (this->encoding.ptr)
+	{
+		return;
+	}
+	writer = bio_writer_create(64);
+	writer->write_uint32(writer, this->parameters_type.vendor_id);
+	writer->write_uint32(writer, this->parameters_type.type);
+	writer->write_data  (writer, this->parameters);
+
+	this->encoding = writer->get_buf(writer);
+	this->encoding = chunk_clone(this->encoding);
+	writer->destroy(writer);
+}
+
+METHOD(pb_tnc_msg_t, process, status_t,
+	private_pb_remediation_parameters_msg_t *this, u_int32_t *offset)
+{
+	bio_reader_t *reader;
+	u_int8_t reserved;
+	status_t status = SUCCESS;
+	u_char *pos;
+
+	*offset = 0;
+
+	/* process message */
+	reader = bio_reader_create(this->encoding);
+	reader->read_uint8 (reader, &reserved);
+	reader->read_uint24(reader, &this->parameters_type.vendor_id);
+	reader->read_uint32(reader, &this->parameters_type.type);
+	reader->read_data  (reader, reader->remaining(reader), &this->parameters);
+
+	this->parameters = chunk_clone(this->parameters);
+	reader->destroy(reader);
+
+	if (this->parameters_type.vendor_id == PEN_IETF &&
+		this->parameters_type.type == PB_REMEDIATION_STRING)
+	{
+		reader = bio_reader_create(this->parameters);
+		status = FAILED;
+		*offset = 8;
+
+		if (!reader->read_data32(reader, &this->string))
+		{
+			DBG1(DBG_TNC, "insufficient data for remediation string");
+			goto end;
+		};
+		*offset += 4;
+
+		pos = memchr(this->string.ptr, '\0', this->string.len);
+		if (pos)
+		{
+			DBG1(DBG_TNC, "nul termination in remediation string");
+			*offset += (pos - this->string.ptr);
+			goto end;
+		}
+		*offset += this->string.len;
+
+		if (!reader->read_data8(reader, &this->lang_code))
+		{
+			DBG1(DBG_TNC, "insufficient data for remediation string lang code");
+			goto end;
+		};
+		*offset += 1;
+
+		pos = memchr(this->lang_code.ptr, '\0', this->lang_code.len);
+
+		if (pos)
+		{
+			DBG1(DBG_TNC, "nul termination in remediation string lang code");
+			*offset += (pos - this->lang_code.ptr);
+			goto end;
+		}
+		status = SUCCESS;
+
+end:
+		reader->destroy(reader);
+	}
+	return status;
+}
+
+METHOD(pb_tnc_msg_t, destroy, void,
+	private_pb_remediation_parameters_msg_t *this)
+{
+	free(this->encoding.ptr);
+	free(this->parameters.ptr);
+	free(this);
+}
+
+METHOD(pb_remediation_parameters_msg_t, get_parameters_type, pen_type_t,
+	private_pb_remediation_parameters_msg_t *this)
+{
+	return this->parameters_type;
+}
+
+METHOD(pb_remediation_parameters_msg_t, get_parameters, chunk_t,
+	private_pb_remediation_parameters_msg_t *this)
+{
+	return this->parameters;
+}
+
+METHOD(pb_remediation_parameters_msg_t, get_string, chunk_t,
+	private_pb_remediation_parameters_msg_t *this, chunk_t *lang_code)
+{
+	if (lang_code)
+	{
+		*lang_code = this->lang_code;
+	}
+	return this->string;
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t* pb_remediation_parameters_msg_create(pen_type_t parameters_type,
+												   chunk_t parameters)
+{
+	private_pb_remediation_parameters_msg_t *this;
+
+	INIT(this,
+		.public = {
+			.pb_interface = {
+				.get_type = _get_type,
+				.get_encoding = _get_encoding,
+				.build = _build,
+				.process = _process,
+				.destroy = _destroy,
+			},
+			.get_parameters_type = _get_parameters_type,
+			.get_parameters = _get_parameters,
+			.get_uri = _get_parameters,
+			.get_string = _get_string,
+		},
+		.type = { PEN_IETF, PB_MSG_REMEDIATION_PARAMETERS },
+		.parameters_type = parameters_type,
+		.parameters = chunk_clone(parameters),
+	);
+
+	return &this->public.pb_interface;
+}
+
+/**
+ * Described in header.
+ */
+pb_tnc_msg_t* pb_remediation_parameters_msg_create_from_uri(chunk_t uri)
+{
+	pen_type_t type = { PEN_IETF, PB_REMEDIATION_URI };
+
+	return pb_remediation_parameters_msg_create(type, uri);
+}
+
+/**
+ * Described in header.
+ */
+pb_tnc_msg_t* pb_remediation_parameters_msg_create_from_string(chunk_t string,
+															   chunk_t lang_code)
+{
+	pb_tnc_msg_t *msg;
+	bio_writer_t *writer;
+	pen_type_t type = { PEN_IETF, PB_REMEDIATION_STRING };
+
+	/* limit language code to 255 octets */
+	lang_code.len = min(255, lang_code.len);
+
+	writer = bio_writer_create(4 + string.len + 1 + lang_code.len);
+	writer->write_data32(writer, string);
+	writer->write_data8 (writer, lang_code);
+
+	msg = pb_remediation_parameters_msg_create(type, writer->get_buf(writer));
+	writer->destroy(writer);
+
+	return msg;
+}
+
+/**
+ * See header
+ */
+pb_tnc_msg_t *pb_remediation_parameters_msg_create_from_data(chunk_t data)
+{
+	private_pb_remediation_parameters_msg_t *this;
+
+	INIT(this,
+		.public = {
+			.pb_interface = {
+				.get_type = _get_type,
+				.get_encoding = _get_encoding,
+				.build = _build,
+				.process = _process,
+				.destroy = _destroy,
+			},
+			.get_parameters_type = _get_parameters_type,
+			.get_parameters = _get_parameters,
+			.get_uri = _get_parameters,
+			.get_string = _get_string,
+		},
+		.type = { PEN_IETF, PB_MSG_REMEDIATION_PARAMETERS },
+		.encoding = chunk_clone(data),
+	);
+
+	return &this->public.pb_interface;
+}
+
diff --git a/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_remediation_parameters_msg.h b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_remediation_parameters_msg.h
new file mode 100644
index 000000000..c07e52747
--- /dev/null
+++ b/src/libtnccs/plugins/tnccs_20/messages/ietf/pb_remediation_parameters_msg.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2011-2013 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 pb_remediation_parameters_msg pb_remediation_parameters_msg
+ * @{ @ingroup tnccs_20
+ */
+
+#ifndef PB_REMEDIATION_PARAMETERS_MSG_H_
+#define PB_REMEDIATION_PARAMETERS_MSG_H_
+
+typedef enum pb_tnc_remed_param_type_t pb_tnc_remed_param_type_t;
+typedef struct pb_remediation_parameters_msg_t pb_remediation_parameters_msg_t;
+
+#include "messages/pb_tnc_msg.h"
+
+#include <pen/pen.h>
+
+/**
+ * PB-TNC Remediation Parameter Types as defined in section 4.8.1 of RFC 5793
+ */
+enum pb_tnc_remed_param_type_t {
+	PB_REMEDIATION_URI =			1,
+	PB_REMEDIATION_STRING =			2,
+};
+
+/**
+ * enum name for pb_tnc_remed_param_type_t.
+ */
+extern enum_name_t *pb_tnc_remed_param_type_names;
+
+/**
+ * Class representing the PB-Remediation-Parameters message type.
+ */
+struct pb_remediation_parameters_msg_t {
+
+	/**
+	 * PB-TNC Message interface
+	 */
+	pb_tnc_msg_t pb_interface;
+
+	/**
+	 * Get the Remediation Parameters Type (Vendor ID and Type)
+	 *
+	 * @return				Remediation Parameters Type
+	 */
+	pen_type_t (*get_parameters_type)(pb_remediation_parameters_msg_t *this);
+
+	/**
+	 * Get the Remediation Parameters
+	 *
+	 * @return				Remediation Parameters
+	 */
+	chunk_t (*get_parameters)(pb_remediation_parameters_msg_t *this);
+
+	/**
+	 * Get the Remediation URI
+	 *
+	 * @return				Remediation URI
+	 */
+	chunk_t (*get_uri)(pb_remediation_parameters_msg_t *this);
+
+	/**
+	 * Get the Remediation String
+	 *
+	 * @param lang_code		Optional Language Code
+	 * @return				Remediation String
+	 */
+	chunk_t (*get_string)(pb_remediation_parameters_msg_t *this,
+						  chunk_t *lang_code);
+
+};
+
+/**
+ * Create a general PB-Remediation-Parameters message
+ *
+ * @param parameters_type	Remediation Parameters Type
+ * @param parameters		Remediation Parameters
+ */
+pb_tnc_msg_t* pb_remediation_parameters_msg_create(pen_type_t parameters_type,
+												   chunk_t parameters);
+
+/**
+ * Create a PB-Remediation-Parameters message of IETF Type Remediation URI
+ *
+ * @param uri				Remediation URI
+ */
+pb_tnc_msg_t* pb_remediation_parameters_msg_create_from_uri(chunk_t uri);
+
+/**
+ * Create a PB-Remediation-Parameters message of IETF Type Remediation String
+ *
+ * @param string			Remediation String
+ * @param lang_code			Remediation String Language Code
+ */
+pb_tnc_msg_t* pb_remediation_parameters_msg_create_from_string(chunk_t string,
+															   chunk_t lang_code);
+
+/**
+ * Create an unprocessed PB-Remediation-Parameters message from raw data
+ *
+  * @param data		PB-Remediation-Parameters message data
+ */
+pb_tnc_msg_t* pb_remediation_parameters_msg_create_from_data(chunk_t data);
+
+#endif /** PB_PA_MSG_H_ @}*/