libtpmtss: Added to integrity checks
[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 /**
21 * Described in header.
22 */
23 void libtpmtss_init(void)
24 {
25 /* empty */
26 }
27
28 typedef tpm_tss_t*(*tpm_tss_create)();
29
30 /**
31 * See header.
32 */
33 tpm_tss_t *tpm_tss_probe(tpm_version_t version)
34 {
35 tpm_tss_create stacks[] = {
36 tpm_tss_tss2_create,
37 tpm_tss_trousers_create,
38 };
39 tpm_tss_t *tpm;
40 int i;
41
42 for (i = 0; i < countof(stacks); i++)
43 {
44 tpm = stacks[i]();
45 if (tpm)
46 {
47 if (version == TPM_VERSION_ANY || version == tpm->get_version(tpm))
48 {
49 return tpm;
50 }
51 }
52 }
53 return NULL;
54 }