165f83ccb8d0d18fd29797e2a90bd53f905ef35a
[strongswan.git] / src / libstrongswan / plugins / openssl / openssl_plugin.c
1 /*
2 * Copyright (C) 2008 Tobias Brunner
3 * Copyright (C) 2008 Martin Willi
4 * Hochschule fuer Technik Rapperswil
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * for more details.
15 */
16
17 #include <openssl/conf.h>
18 #include <openssl/evp.h>
19 #include <openssl/engine.h>
20 #include <openssl/crypto.h>
21
22 #include "openssl_plugin.h"
23
24 #include <library.h>
25 #include <threading/thread.h>
26 #include <threading/mutex.h>
27 #include "openssl_util.h"
28 #include "openssl_crypter.h"
29 #include "openssl_hasher.h"
30 #include "openssl_sha1_prf.h"
31 #include "openssl_diffie_hellman.h"
32 #include "openssl_ec_diffie_hellman.h"
33 #include "openssl_rsa_private_key.h"
34 #include "openssl_rsa_public_key.h"
35 #include "openssl_ec_private_key.h"
36 #include "openssl_ec_public_key.h"
37
38 typedef struct private_openssl_plugin_t private_openssl_plugin_t;
39
40 /**
41 * private data of openssl_plugin
42 */
43 struct private_openssl_plugin_t {
44
45 /**
46 * public functions
47 */
48 openssl_plugin_t public;
49 };
50
51 /**
52 * Array of static mutexs, with CRYPTO_num_locks() mutex
53 */
54 static mutex_t **mutex = NULL;
55
56 /**
57 * Locking callback for static locks
58 */
59 static void locking_function(int mode, int type, const char *file, int line)
60 {
61 if (mutex)
62 {
63 if (mode & CRYPTO_LOCK)
64 {
65 mutex[type]->lock(mutex[type]);
66 }
67 else
68 {
69 mutex[type]->unlock(mutex[type]);
70 }
71 }
72 }
73
74 /**
75 * Implementation of dynlock
76 */
77 struct CRYPTO_dynlock_value {
78 mutex_t *mutex;
79 };
80
81 /**
82 * Callback to create a dynamic lock
83 */
84 static struct CRYPTO_dynlock_value *create_function(const char *file, int line)
85 {
86 struct CRYPTO_dynlock_value *lock;
87
88 lock = malloc_thing(struct CRYPTO_dynlock_value);
89 lock->mutex = mutex_create(MUTEX_TYPE_DEFAULT);
90 return lock;
91 }
92
93 /**
94 * Callback to (un-)lock a dynamic lock
95 */
96 static void lock_function(int mode, struct CRYPTO_dynlock_value *lock,
97 const char *file, int line)
98 {
99 if (mode & CRYPTO_LOCK)
100 {
101 lock->mutex->lock(lock->mutex);
102 }
103 else
104 {
105 lock->mutex->unlock(lock->mutex);
106 }
107 }
108
109 /**
110 * Callback to destroy a dynamic lock
111 */
112 static void destroy_function(struct CRYPTO_dynlock_value *lock,
113 const char *file, int line)
114 {
115 lock->mutex->destroy(lock->mutex);
116 free(lock);
117 }
118
119 /**
120 * Thread-ID callback function
121 */
122 static unsigned long id_function(void)
123 {
124 return (unsigned long)thread_current_id();
125 }
126
127 /**
128 * initialize OpenSSL for multi-threaded use
129 */
130 static void threading_init()
131 {
132 int i, num_locks;
133
134 CRYPTO_set_id_callback(id_function);
135 CRYPTO_set_locking_callback(locking_function);
136
137 CRYPTO_set_dynlock_create_callback(create_function);
138 CRYPTO_set_dynlock_lock_callback(lock_function);
139 CRYPTO_set_dynlock_destroy_callback(destroy_function);
140
141 num_locks = CRYPTO_num_locks();
142 mutex = malloc(sizeof(mutex_t*) * num_locks);
143 for (i = 0; i < num_locks; i++)
144 {
145 mutex[i] = mutex_create(MUTEX_TYPE_DEFAULT);
146 }
147 }
148
149 /**
150 * cleanup OpenSSL threading locks
151 */
152 static void threading_cleanup()
153 {
154 int i, num_locks;
155
156 num_locks = CRYPTO_num_locks();
157 for (i = 0; i < num_locks; i++)
158 {
159 mutex[i]->destroy(mutex[i]);
160 }
161 free(mutex);
162 mutex = NULL;
163 }
164
165 /**
166 * Implementation of openssl_plugin_t.destroy
167 */
168 static void destroy(private_openssl_plugin_t *this)
169 {
170 lib->crypto->remove_crypter(lib->crypto,
171 (crypter_constructor_t)openssl_crypter_create);
172 lib->crypto->remove_hasher(lib->crypto,
173 (hasher_constructor_t)openssl_hasher_create);
174 lib->crypto->remove_prf(lib->crypto,
175 (prf_constructor_t)openssl_sha1_prf_create);
176 lib->crypto->remove_dh(lib->crypto,
177 (dh_constructor_t)openssl_diffie_hellman_create);
178 lib->crypto->remove_dh(lib->crypto,
179 (dh_constructor_t)openssl_ec_diffie_hellman_create);
180 lib->creds->remove_builder(lib->creds,
181 (builder_function_t)openssl_rsa_private_key_load);
182 lib->creds->remove_builder(lib->creds,
183 (builder_function_t)openssl_rsa_private_key_gen);
184 lib->creds->remove_builder(lib->creds,
185 (builder_function_t)openssl_rsa_private_key_connect);
186 lib->creds->remove_builder(lib->creds,
187 (builder_function_t)openssl_rsa_public_key_load);
188 lib->creds->remove_builder(lib->creds,
189 (builder_function_t)openssl_ec_private_key_load);
190 lib->creds->remove_builder(lib->creds,
191 (builder_function_t)openssl_ec_private_key_gen);
192 lib->creds->remove_builder(lib->creds,
193 (builder_function_t)openssl_ec_public_key_load);
194
195 ENGINE_cleanup();
196 EVP_cleanup();
197 CONF_modules_free();
198
199 threading_cleanup();
200
201 free(this);
202 }
203
204 /*
205 * see header file
206 */
207 plugin_t *openssl_plugin_create()
208 {
209 private_openssl_plugin_t *this = malloc_thing(private_openssl_plugin_t);
210
211 this->public.plugin.destroy = (void(*)(plugin_t*))destroy;
212
213 threading_init();
214
215 OPENSSL_config(NULL);
216 OpenSSL_add_all_algorithms();
217
218 /* activate support for hardware accelerators */
219 ENGINE_load_builtin_engines();
220 ENGINE_register_all_complete();
221
222 /* crypter */
223 lib->crypto->add_crypter(lib->crypto, ENCR_AES_CBC,
224 (crypter_constructor_t)openssl_crypter_create);
225 lib->crypto->add_crypter(lib->crypto, ENCR_CAMELLIA_CBC,
226 (crypter_constructor_t)openssl_crypter_create);
227 lib->crypto->add_crypter(lib->crypto, ENCR_3DES,
228 (crypter_constructor_t)openssl_crypter_create);
229 lib->crypto->add_crypter(lib->crypto, ENCR_RC5,
230 (crypter_constructor_t)openssl_crypter_create);
231 lib->crypto->add_crypter(lib->crypto, ENCR_IDEA,
232 (crypter_constructor_t)openssl_crypter_create);
233 lib->crypto->add_crypter(lib->crypto, ENCR_CAST,
234 (crypter_constructor_t)openssl_crypter_create);
235 lib->crypto->add_crypter(lib->crypto, ENCR_BLOWFISH,
236 (crypter_constructor_t)openssl_crypter_create);
237 lib->crypto->add_crypter(lib->crypto, ENCR_DES,
238 (crypter_constructor_t)openssl_crypter_create);
239 lib->crypto->add_crypter(lib->crypto, ENCR_DES_ECB,
240 (crypter_constructor_t)openssl_crypter_create);
241 lib->crypto->add_crypter(lib->crypto, ENCR_NULL,
242 (crypter_constructor_t)openssl_crypter_create);
243
244 /* hasher */
245 lib->crypto->add_hasher(lib->crypto, HASH_SHA1,
246 (hasher_constructor_t)openssl_hasher_create);
247 lib->crypto->add_hasher(lib->crypto, HASH_MD2,
248 (hasher_constructor_t)openssl_hasher_create);
249 lib->crypto->add_hasher(lib->crypto, HASH_MD4,
250 (hasher_constructor_t)openssl_hasher_create);
251 lib->crypto->add_hasher(lib->crypto, HASH_MD5,
252 (hasher_constructor_t)openssl_hasher_create);
253 lib->crypto->add_hasher(lib->crypto, HASH_SHA224,
254 (hasher_constructor_t)openssl_hasher_create);
255 lib->crypto->add_hasher(lib->crypto, HASH_SHA256,
256 (hasher_constructor_t)openssl_hasher_create);
257 lib->crypto->add_hasher(lib->crypto, HASH_SHA384,
258 (hasher_constructor_t)openssl_hasher_create);
259 lib->crypto->add_hasher(lib->crypto, HASH_SHA512,
260 (hasher_constructor_t)openssl_hasher_create);
261
262 /* prf */
263 lib->crypto->add_prf(lib->crypto, PRF_KEYED_SHA1,
264 (prf_constructor_t)openssl_sha1_prf_create);
265
266 /* (ec) diffie hellman */
267 lib->crypto->add_dh(lib->crypto, MODP_2048_BIT,
268 (dh_constructor_t)openssl_diffie_hellman_create);
269 lib->crypto->add_dh(lib->crypto, MODP_1536_BIT,
270 (dh_constructor_t)openssl_diffie_hellman_create);
271 lib->crypto->add_dh(lib->crypto, ECP_256_BIT,
272 (dh_constructor_t)openssl_ec_diffie_hellman_create);
273 lib->crypto->add_dh(lib->crypto, ECP_384_BIT,
274 (dh_constructor_t)openssl_ec_diffie_hellman_create);
275 lib->crypto->add_dh(lib->crypto, ECP_521_BIT,
276 (dh_constructor_t)openssl_ec_diffie_hellman_create);
277 lib->crypto->add_dh(lib->crypto, ECP_224_BIT,
278 (dh_constructor_t)openssl_ec_diffie_hellman_create);
279 lib->crypto->add_dh(lib->crypto, ECP_192_BIT,
280 (dh_constructor_t)openssl_ec_diffie_hellman_create);
281 lib->crypto->add_dh(lib->crypto, MODP_3072_BIT,
282 (dh_constructor_t)openssl_diffie_hellman_create);
283 lib->crypto->add_dh(lib->crypto, MODP_4096_BIT,
284 (dh_constructor_t)openssl_diffie_hellman_create);
285 lib->crypto->add_dh(lib->crypto, MODP_6144_BIT,
286 (dh_constructor_t)openssl_diffie_hellman_create);
287 lib->crypto->add_dh(lib->crypto, MODP_8192_BIT,
288 (dh_constructor_t)openssl_diffie_hellman_create);
289 lib->crypto->add_dh(lib->crypto, MODP_1024_BIT,
290 (dh_constructor_t)openssl_diffie_hellman_create);
291 lib->crypto->add_dh(lib->crypto, MODP_768_BIT,
292 (dh_constructor_t)openssl_diffie_hellman_create);
293
294 /* rsa */
295 lib->creds->add_builder(lib->creds, CRED_PRIVATE_KEY, KEY_RSA,
296 (builder_function_t)openssl_rsa_private_key_load);
297 lib->creds->add_builder(lib->creds, CRED_PRIVATE_KEY, KEY_RSA,
298 (builder_function_t)openssl_rsa_private_key_gen);
299 lib->creds->add_builder(lib->creds, CRED_PRIVATE_KEY, KEY_RSA,
300 (builder_function_t)openssl_rsa_private_key_connect);
301 lib->creds->add_builder(lib->creds, CRED_PUBLIC_KEY, KEY_RSA,
302 (builder_function_t)openssl_rsa_public_key_load);
303
304 /* ec */
305 lib->creds->add_builder(lib->creds, CRED_PRIVATE_KEY, KEY_ECDSA,
306 (builder_function_t)openssl_ec_private_key_load);
307 lib->creds->add_builder(lib->creds, CRED_PRIVATE_KEY, KEY_ECDSA,
308 (builder_function_t)openssl_ec_private_key_gen);
309 lib->creds->add_builder(lib->creds, CRED_PUBLIC_KEY, KEY_ECDSA,
310 (builder_function_t)openssl_ec_public_key_load);
311
312 return &this->public.plugin;
313 }
314