687f9f398daed3c97d4fb2853df2b32a99c824e6
[strongswan.git] / src / libtpmtss / tpm_tss.c
1 /*
2 * Copyright (C) 2016 Andreas Steffen
3 * HSR Hochschule fuer Technik Rapperswil
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * for more details.
14 */
15
16 #include "tpm_tss.h"
17 #include "tpm_tss_tss2.h"
18 #include "tpm_tss_trousers.h"
19
20 typedef tpm_tss_t*(*tpm_tss_create)();
21
22 /**
23 * See header.
24 */
25 tpm_tss_t *tpm_tss_probe(tpm_version_t version)
26 {
27 tpm_tss_create stacks[] = {
28 tpm_tss_tss2_create,
29 tpm_tss_trousers_create,
30 };
31 tpm_tss_t *tpm;
32 int i;
33
34 for (i = 0; i < countof(stacks); i++)
35 {
36 tpm = stacks[i]();
37 if (tpm)
38 {
39 if (version == TPM_VERSION_ANY || version == tpm->get_version(tpm))
40 {
41 return tpm;
42 }
43 }
44 }
45 return NULL;
46 }