Add plugin constructor registration for all libraries that provide plugins
[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 * Register plugins if built statically
22 */
23 #ifdef STATIC_PLUGIN_CONSTRUCTORS
24 #include "plugin_constructors.c"
25 #endif
26
27 /**
28 * Described in header.
29 */
30 void libtpmtss_init(void)
31 {
32 /* empty */
33 }
34
35 typedef tpm_tss_t*(*tpm_tss_create)();
36
37 /**
38 * See header.
39 */
40 tpm_tss_t *tpm_tss_probe(tpm_version_t version)
41 {
42 tpm_tss_create stacks[] = {
43 tpm_tss_tss2_create,
44 tpm_tss_trousers_create,
45 };
46 tpm_tss_t *tpm;
47 int i;
48
49 for (i = 0; i < countof(stacks); i++)
50 {
51 tpm = stacks[i]();
52 if (tpm)
53 {
54 if (version == TPM_VERSION_ANY || version == tpm->get_version(tpm))
55 {
56 return tpm;
57 }
58 }
59 }
60 return NULL;
61 }