Imported Upstream version 4.6.4

1 files changed, 104 insertions, 0 deletions

diff --git a/src/libpts/pts/pts_dh_group.h b/src/libpts/pts/pts_dh_group.h
new file mode 100644
index 000000000..8664a4b84
--- /dev/null
+++ b/src/libpts/pts/pts_dh_group.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2011 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 pts_dh_group pts_dh_group
+ * @{ @ingroup pts
+ */
+
+#ifndef PTS_DH_GROUP_H_
+#define PTS_DH_GROUP_H_
+
+#include <library.h>
+#include <crypto/diffie_hellman.h>
+
+typedef enum pts_dh_group_t pts_dh_group_t;
+
+/**
+ * PTS Diffie Hellman Group Values
+ */
+enum pts_dh_group_t {
+	/** No DH Group */
+	PTS_DH_GROUP_NONE  =					0,
+	/** IKE Group 2 */
+	PTS_DH_GROUP_IKE2  =				 (1<<15),
+	/** IKE Group 5 */
+	PTS_DH_GROUP_IKE5  =				 (1<<14),
+	/** IKE Group 14 */
+	PTS_DH_GROUP_IKE14 =				 (1<<13),
+	/** IKE Group 19 */
+	PTS_DH_GROUP_IKE19 =				 (1<<12),
+	/** IKE Group 20 */
+	PTS_DH_GROUP_IKE20 =				 (1<<11),
+};
+
+/**
+ * Diffie-Hellman Group Values
+ * see section 3.8.6 of PTS Protocol: Binding to TNC IF-M Specification
+ *
+ *					   1
+ *   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  |1|2|3|4|5|R|R|R|R|R|R|R|R|R|R|R|
+ *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *  
+ */
+
+/**
+ * Probe available PTS Diffie-Hellman groups
+ *
+ * @param dh_groups			returns set of available DH groups
+ * @return					TRUE if mandatory DH groups are available
+ */
+bool pts_dh_group_probe(pts_dh_group_t *dh_groups);
+
+/**
+ * Update supported Diffie-Hellman groups according to configuration
+ *
+ * modp1024: PTS_DH_GROUP_IKE2
+ * modp1536: PTS_DH_GROUP_IKE2  | PTS_DH_GROUP_IKE5
+ * modp2048: PTS_DH_GROUP_IKE2  | PTS_DH_GROUP_IKE5  | PTS_DH_GROUP_IKE14
+ * ecp256:   PTS_DH_GROUP_IKE2  | PTS_DH_GROUP_IKE5  | PTS_DH_GROUP_IKE14 |
+ *           PTS_DH_GROUP_IKE19
+ * ecp384:   PTS_DH_GROUP_IKE2  | PTS_DH_GROUP_IKE5  | PTS_DH_GROUP_IKE14 |
+ *           PTS_DH_GROUP_IKE19 | PTS_DH_GROUP_IKE20
+ *
+ * The PTS-IMC is expected to select the strongest supported group
+ *
+ * @param dh_group			configured DH group
+ * @param dh_groups			returns set of available DH groups
+ */
+bool pts_dh_group_update(char *dh_group, pts_dh_group_t *dh_groups);
+
+/**
+ * Select the strongest supported Diffie-Hellman group
+ * among a set of offered DH groups
+ *
+ * @param supported_groups	set of supported DH groups
+ * @param offered_groups	set of offered DH groups
+ * @return					selected DH group
+ */
+pts_dh_group_t pts_dh_group_select(pts_dh_group_t supported_dh_groups,
+								   pts_dh_group_t offered_dh_groups);
+
+/**
+ * Convert pts_dh_group_t to diffie_hellman_group_t
+ *
+ * @param dh_group			PTS DH group type
+ * @return					IKE DH group type
+ */
+diffie_hellman_group_t pts_dh_group_to_ike(pts_dh_group_t dh_group);
+
+#endif /** PTS_DH_GROUP_H_ @}*/