make AR identities available to IMVs via IF-IMV 1.4 draft

2013-02-11 15:30:44 +01:00
parent ebb87f08f7
commit bd1ee5bdc4
14 changed files with 645 additions and 0 deletions
@@ -0,0 +1,205 @@
+/*
+ * Copyright (C) 2013 Andreas Steffen
+ * HSR Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#include "tncif_identity.h"
+
+#include <bio/bio_writer.h>
+#include <bio/bio_reader.h>
+#include <pen/pen.h>
+#include <utils/debug.h>
+
+typedef struct private_tncif_identity_t private_tncif_identity_t;
+
+/**
+ * TNC Identity List Attribute Format (TCG TNC IF-IMV 1.4 Draft)
+ *
+ *                      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
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |                        Identity Count                         |
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |   RESERVED    |            Identity Type Vendor ID            |
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |                         Identity Type                         |
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |                     Identity Value Length                     |
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |                                                               |
+ *  ~                         Identity Value                        ~
+ *  |                                                               |
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |   RESERVED    |            Subject Type Vendor ID             |
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |                         Subject Type                          |
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |   RESERVED    |        Authentication Method Vendor ID        |
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |                     Authentication Method                     |
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+/**
+ * Private data of a tncif_identity_t object.
+ *
+ */
+struct private_tncif_identity_t {
+
+	/**
+	 * Public tncif_identity_t interface.
+	 */
+	tncif_identity_t public;
+
+	/**
+	 * Identity Type
+	 */
+	pen_type_t identity_type;
+
+	/**
+	 * Identity Value
+	 */
+	chunk_t identity_value;
+
+	/**
+	 * Subject Type
+	 */
+	pen_type_t subject_type;
+
+	/**
+	 * Authentication Type
+	 */
+	pen_type_t auth_type;
+};
+
+METHOD(tncif_identity_t, get_identity_type, pen_type_t,
+	private_tncif_identity_t *this)
+{
+	return this->identity_type;
+}
+
+METHOD(tncif_identity_t, get_identity_value, chunk_t,
+	private_tncif_identity_t *this)
+{
+	return this->identity_value;
+}
+
+METHOD(tncif_identity_t, get_subject_type, pen_type_t,
+	private_tncif_identity_t *this)
+{
+	return this->subject_type;
+}
+
+METHOD(tncif_identity_t, get_auth_type, pen_type_t,
+	private_tncif_identity_t *this)
+{
+	return this->auth_type;
+}
+
+METHOD(tncif_identity_t, build, void,
+	private_tncif_identity_t *this, bio_writer_t *writer)
+{
+	writer->write_uint32(writer, this->identity_type.vendor_id);
+	writer->write_uint32(writer, this->identity_type.type);
+	writer->write_data32(writer, this->identity_value);
+	writer->write_uint32(writer, this->subject_type.vendor_id);
+	writer->write_uint32(writer, this->subject_type.type);
+	writer->write_uint32(writer, this->auth_type.vendor_id);
+	writer->write_uint32(writer, this->auth_type.type);
+}
+
+METHOD(tncif_identity_t, process, bool,
+	private_tncif_identity_t *this, bio_reader_t *reader)
+{
+	u_int8_t reserved;
+	u_int32_t vendor_id, type;
+	chunk_t identity_value;
+
+	if (reader->remaining(reader) < TNCIF_IDENTITY_MIN_SIZE)
+	{
+		return FALSE;
+	}
+	reader->read_uint8 (reader, &reserved);
+	reader->read_uint24(reader, &vendor_id);
+	reader->read_uint32(reader, &type);
+	this->identity_type = pen_type_create(vendor_id, type);
+
+	if (!reader->read_data32(reader, &identity_value) ||
+		 reader->remaining(reader) < 16)
+	{
+		return FALSE;
+	}
+	this->identity_value = chunk_clone(identity_value);
+
+	reader->read_uint8 (reader, &reserved);
+	reader->read_uint24(reader, &vendor_id);
+	reader->read_uint32(reader, &type);
+	this->subject_type = pen_type_create(vendor_id, type);		
+
+	reader->read_uint8 (reader, &reserved);
+	reader->read_uint24(reader, &vendor_id);
+	reader->read_uint32(reader, &type);
+	this->auth_type = pen_type_create(vendor_id, type);
+
+	return TRUE;
+}
+
+METHOD(tncif_identity_t, destroy, void,
+	private_tncif_identity_t *this)
+{
+	free(this->identity_value.ptr);
+	free(this);
+}
+
+
+/**
+ * See header
+ */
+tncif_identity_t *tncif_identity_create_empty(void)
+{
+	private_tncif_identity_t *this;
+
+	INIT(this,
+		.public = {
+			.get_identity_type = _get_identity_type,
+			.get_identity_value = _get_identity_value,
+			.get_subject_type = _get_subject_type,
+			.get_auth_type = _get_auth_type,
+			.build = _build,
+			.process = _process,
+			.destroy = _destroy,
+		},
+	);
+
+	return &this->public;
+}
+
+/**
+ * See header
+ */
+tncif_identity_t *tncif_identity_create(pen_type_t identity_type,
+										chunk_t identity_value,
+										pen_type_t subject_type,
+										pen_type_t auth_type)
+{
+	private_tncif_identity_t *this;
+
+	this = (private_tncif_identity_t*)tncif_identity_create_empty();
+	this->identity_type = identity_type;
+	this->identity_value = chunk_clone(identity_value);
+	this->subject_type = subject_type;
+	this->auth_type = auth_type;
+
+	return &this->public;
+}
+