curve25519: Add a plugin providing Curve25519 DH using backend drivers
[strongswan.git] / src / libstrongswan / plugins / curve25519 / curve25519_plugin.c
1 /*
2 * Copyright (C) 2014 Martin Willi
3 * Copyright (C) 2014 revosec AG
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 "curve25519_plugin.h"
17 #include "curve25519_dh.h"
18
19 #include <library.h>
20
21 typedef struct private_curve25519_plugin_t private_curve25519_plugin_t;
22
23 /**
24 * private data of curve25519_plugin
25 */
26 struct private_curve25519_plugin_t {
27
28 /**
29 * public functions
30 */
31 curve25519_plugin_t public;
32 };
33
34 METHOD(plugin_t, get_name, char*,
35 private_curve25519_plugin_t *this)
36 {
37 return "curve25519";
38 }
39
40 METHOD(plugin_t, get_features, int,
41 private_curve25519_plugin_t *this, plugin_feature_t *features[])
42 {
43 static plugin_feature_t f[] = {
44 PLUGIN_REGISTER(DH, curve25519_dh_create),
45 PLUGIN_PROVIDE(DH, CURVE_25519),
46 PLUGIN_DEPENDS(RNG, RNG_STRONG),
47 };
48 *features = f;
49 return countof(f);
50 }
51
52 METHOD(plugin_t, destroy, void,
53 private_curve25519_plugin_t *this)
54 {
55 free(this);
56 }
57
58 /*
59 * see header file
60 */
61 plugin_t *curve25519_plugin_create()
62 {
63 private_curve25519_plugin_t *this;
64
65 INIT(this,
66 .public = {
67 .plugin = {
68 .get_name = _get_name,
69 .get_features = _get_features,
70 .destroy = _destroy,
71 },
72 },
73 );
74
75 return &this->public.plugin;
76 }