Merged libpts into libimcv

src/libimcv/pts/pts_pcr.h

@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2012 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 pts_pcr pts_pcr
+ * @{ @ingroup pts
+ */
+
+#ifndef PTS_PCR_H_
+#define PTS_PCR_H_
+
+typedef struct pts_pcr_t pts_pcr_t;
+
+#include <library.h>
+
+/**
+ * Maximum number of PCR's of TPM, TPM Spec 1.2
+ */
+#define PTS_PCR_MAX_NUM				24
+
+/**
+ * Number of bytes that can be saved in a PCR of TPM, TPM Spec 1.2
+ */
+#define PTS_PCR_LEN					20
+
+/**
+ * Class implementing a shadow PCR register set
+ */
+struct pts_pcr_t {
+
+	/**
+	 * Get the number of selected PCRs
+	 *
+	 * @return				number of selected PCRs
+	 */
+	u_int32_t (*get_count)(pts_pcr_t *this);
+
+	/**
+	 * Mark a PCR as selected
+	 *
+	 * @param pcr			index of PCR
+	 * @return				TRUE if PCR index exists
+	 */
+	bool (*select_pcr)(pts_pcr_t *this, u_int32_t pcr);
+
+	/**
+	 * Get the size of the selection field in bytes
+	 *
+	 * @return				number of bytes written
+	 */
+	size_t (*get_selection_size)(pts_pcr_t *this);
+
+	/**
+	 * Create an enumerator over all selected PCR indexes
+	 *
+	 * @return				enumerator
+	 */
+	enumerator_t* (*create_enumerator)(pts_pcr_t *this);
+
+	/**
+	 * Get the current content of a PCR
+	 *
+	 * @param pcr			index of PCR
+	 * @return				content of PCR
+	 */
+	chunk_t (*get)(pts_pcr_t *this, u_int32_t pcr);
+
+	/**
+	 * Set the content of a PCR
+	 *
+	 * @param pcr			index of PCR
+	 * @param value			new value of PCR
+	 * @return				TRUE if value could be set
+	 */
+	bool (*set)(pts_pcr_t *this, u_int32_t pcr, chunk_t value);
+
+	/**
+	 * Extend the content of a PCR
+	 *
+	 * @param pcr			index of PCR
+	 * @param measurement	measurment value to be extended into PCR
+	 * @return				new content of PCR
+	 */
+	chunk_t (*extend)(pts_pcr_t *this, u_int32_t pcr, chunk_t measurement);
+
+	/**
+	 * Create a PCR Composite object over all selected PCRs
+	 *
+	 * @return				PCR Composite object (must be freed)
+	 */
+	chunk_t (*get_composite)(pts_pcr_t *this);
+
+	/**
+
+	 * Destroys a pts_pcr_t object.
+	 */
+	void (*destroy)(pts_pcr_t *this);
+
+};
+
+/**
+ * Creates an pts_pcr_t object
+ */
+pts_pcr_t* pts_pcr_create(void);
+
+#endif /** PTS_PCR_H_ @}*/