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b184e3ef MC |
1 | /* |
2 | * Written by Matt Caswell for the OpenSSL project. | |
3 | */ | |
4 | /* ==================================================================== | |
5 | * Copyright (c) 2016 The OpenSSL Project. All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * | |
11 | * 1. Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * | |
14 | * 2. Redistributions in binary form must reproduce the above copyright | |
15 | * notice, this list of conditions and the following disclaimer in | |
16 | * the documentation and/or other materials provided with the | |
17 | * distribution. | |
18 | * | |
19 | * 3. All advertising materials mentioning features or use of this | |
20 | * software must display the following acknowledgment: | |
21 | * "This product includes software developed by the OpenSSL Project | |
22 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | |
23 | * | |
24 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
25 | * endorse or promote products derived from this software without | |
26 | * prior written permission. For written permission, please contact | |
27 | * openssl-core@openssl.org. | |
28 | * | |
29 | * 5. Products derived from this software may not be called "OpenSSL" | |
30 | * nor may "OpenSSL" appear in their names without prior written | |
31 | * permission of the OpenSSL Project. | |
32 | * | |
33 | * 6. Redistributions of any form whatsoever must retain the following | |
34 | * acknowledgment: | |
35 | * "This product includes software developed by the OpenSSL Project | |
36 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | |
37 | * | |
38 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
39 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
40 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
41 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
42 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
43 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
44 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
45 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
46 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
47 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
48 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
49 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
50 | * ==================================================================== | |
51 | * | |
52 | * This product includes cryptographic software written by Eric Young | |
53 | * (eay@cryptsoft.com). This product includes software written by Tim | |
54 | * Hudson (tjh@cryptsoft.com). | |
55 | * | |
56 | */ | |
57 | ||
b184e3ef MC |
58 | #include <internal/cryptlib_int.h> |
59 | #include <openssl/err.h> | |
60 | #include <openssl/evp.h> | |
b184e3ef MC |
61 | #include <internal/evp_int.h> |
62 | #include <internal/conf.h> | |
63 | #include <internal/async.h> | |
64 | #include <internal/engine.h> | |
b184e3ef | 65 | #include <openssl/comp.h> |
b184e3ef | 66 | #include <internal/err.h> |
b184e3ef | 67 | #include <stdlib.h> |
dd27f16e RS |
68 | #include <assert.h> |
69 | ||
70 | static int stopped = 0; | |
b184e3ef | 71 | |
71567a6f MC |
72 | static void ossl_init_thread_stop(struct thread_local_inits_st *locals); |
73 | ||
b184e3ef MC |
74 | /* Implement "once" functionality */ |
75 | #if !defined(OPENSSL_THREADS) | |
76 | typedef int OPENSSL_INIT_ONCE; | |
77 | # define OPENSSL_INIT_ONCE_STATIC_INIT 0 | |
b184e3ef MC |
78 | |
79 | static void ossl_init_once_run(OPENSSL_INIT_ONCE *once, void (*init)(void)) | |
80 | { | |
81 | if (*once == OPENSSL_INIT_ONCE_STATIC_INIT) { | |
82 | *once = 1; | |
83 | init(); | |
84 | } | |
85 | } | |
86 | ||
87 | static int ossl_init_setup_thread_stop(void) | |
88 | { | |
89 | /* | |
90 | * There are no threads to stop. Do nothing. | |
91 | */ | |
92 | return 1; | |
93 | } | |
94 | ||
95 | static void ossl_init_thread_stop_cleanup(void) | |
96 | { | |
97 | } | |
98 | ||
99 | static struct thread_local_inits_st *local = NULL; | |
b7326ea7 | 100 | static struct thread_local_inits_st *ossl_init_get_thread_local(int alloc) |
b184e3ef | 101 | { |
8bd8221b | 102 | struct thread_local_inits_st *tmp; |
b7326ea7 MC |
103 | |
104 | tmp = local; | |
105 | ||
b184e3ef | 106 | if (local == NULL && alloc) |
b7326ea7 MC |
107 | tmp = local = OPENSSL_zalloc(sizeof(*local)); |
108 | ||
109 | if (!alloc) | |
110 | local = NULL; | |
111 | ||
112 | return tmp; | |
b184e3ef MC |
113 | } |
114 | ||
115 | #elif defined(OPENSSL_SYS_WINDOWS) | |
116 | ||
117 | # include <windows.h> | |
118 | ||
119 | # if _WIN32_WINNT < 0x0600 | |
120 | ||
121 | /* | |
122 | * Versions before 0x0600 (Windows Vista, Windows Server 2008 or later) do not | |
123 | * have InitOnceExecuteOnce, so we fall back to using a spinlock instead. | |
124 | */ | |
125 | typedef LONG OPENSSL_INIT_ONCE; | |
126 | # define OPENSSL_INIT_ONCE_STATIC_INIT 0 | |
b184e3ef MC |
127 | |
128 | # define ONCE_UNINITED 0 | |
129 | # define ONCE_ININIT 1 | |
130 | # define ONCE_DONE 2 | |
131 | ||
132 | static void ossl_init_once_run(OPENSSL_INIT_ONCE *once, void (*init)(void)) | |
133 | { | |
134 | LONG volatile *lock = (LONG *)once; | |
135 | LONG result; | |
136 | ||
137 | if (*lock == ONCE_DONE) | |
138 | return; | |
139 | ||
140 | do { | |
141 | result = InterlockedCompareExchange(lock, ONCE_ININIT, ONCE_UNINITED); | |
142 | if (result == ONCE_UNINITED) { | |
143 | init(); | |
144 | *lock = ONCE_DONE; | |
145 | return; | |
146 | } | |
147 | } while (result == ONCE_ININIT); | |
148 | } | |
149 | ||
150 | # else | |
151 | ||
152 | typedef INIT_ONCE OPENSSL_INIT_ONCE; | |
153 | # define OPENSSL_INIT_ONCE_STATIC_INIT INIT_ONCE_STATIC_INIT | |
b184e3ef MC |
154 | |
155 | static BOOL CALLBACK once_cb(PINIT_ONCE once, PVOID initfp, PVOID *unused) | |
156 | { | |
157 | void (*init)(void) = initfp; | |
158 | ||
159 | init(); | |
160 | ||
161 | return TRUE; | |
162 | } | |
163 | ||
164 | static void ossl_init_once_run(OPENSSL_INIT_ONCE *once, void (*init)(void)) | |
165 | { | |
166 | InitOnceExecuteOnce((INIT_ONCE *)once, once_cb, init, NULL); | |
167 | } | |
168 | # endif | |
169 | ||
1ffa8a96 | 170 | static DWORD threadstopkey = TLS_OUT_OF_INDEXES; |
b184e3ef MC |
171 | |
172 | static int ossl_init_setup_thread_stop(void) | |
173 | { | |
174 | /* | |
175 | * We use a dummy thread local key here. We use the destructor to detect | |
176 | * when the thread is going to stop | |
177 | */ | |
178 | threadstopkey = TlsAlloc(); | |
179 | if (threadstopkey == TLS_OUT_OF_INDEXES) | |
180 | return 0; | |
181 | ||
182 | return 1; | |
183 | } | |
184 | ||
185 | static void ossl_init_thread_stop_cleanup(void) | |
186 | { | |
187 | if (threadstopkey != TLS_OUT_OF_INDEXES) { | |
188 | TlsFree(threadstopkey); | |
189 | } | |
190 | } | |
191 | ||
b7326ea7 | 192 | static struct thread_local_inits_st *ossl_init_get_thread_local(int alloc) |
b184e3ef MC |
193 | { |
194 | struct thread_local_inits_st *local = TlsGetValue(threadstopkey); | |
195 | ||
196 | if (local == NULL && alloc) { | |
197 | local = OPENSSL_zalloc(sizeof *local); | |
198 | TlsSetValue(threadstopkey, local); | |
199 | } | |
b7326ea7 MC |
200 | if (!alloc) { |
201 | TlsSetValue(threadstopkey, NULL); | |
202 | } | |
b184e3ef MC |
203 | |
204 | return local; | |
205 | } | |
206 | ||
207 | #else /* pthreads */ | |
208 | # include <pthread.h> | |
209 | ||
1ffa8a96 | 210 | static pthread_key_t threadstopkey; |
b184e3ef MC |
211 | |
212 | typedef pthread_once_t OPENSSL_INIT_ONCE; | |
213 | # define OPENSSL_INIT_ONCE_STATIC_INIT PTHREAD_ONCE_INIT | |
b184e3ef MC |
214 | |
215 | static void ossl_init_once_run(OPENSSL_INIT_ONCE *once, void (*init)(void)) | |
216 | { | |
217 | pthread_once(once, init); | |
218 | } | |
219 | ||
220 | static void ossl_init_thread_stop_wrap(void *local) | |
221 | { | |
222 | ossl_init_thread_stop((struct thread_local_inits_st *)local); | |
223 | } | |
224 | ||
225 | static int ossl_init_setup_thread_stop(void) | |
226 | { | |
227 | /* | |
228 | * We use a dummy thread local key here. We use the destructor to detect | |
229 | * when the thread is going to stop | |
230 | */ | |
231 | return (pthread_key_create(&threadstopkey, | |
232 | ossl_init_thread_stop_wrap) == 0); | |
233 | } | |
234 | ||
235 | static void ossl_init_thread_stop_cleanup(void) | |
236 | { | |
237 | } | |
238 | ||
b7326ea7 | 239 | static struct thread_local_inits_st *ossl_init_get_thread_local(int alloc) |
b184e3ef MC |
240 | { |
241 | struct thread_local_inits_st *local = pthread_getspecific(threadstopkey); | |
242 | ||
243 | if (local == NULL && alloc) { | |
244 | local = OPENSSL_zalloc(sizeof *local); | |
245 | pthread_setspecific(threadstopkey, local); | |
246 | } | |
b7326ea7 MC |
247 | if (!alloc) { |
248 | pthread_setspecific(threadstopkey, NULL); | |
249 | } | |
b184e3ef MC |
250 | |
251 | return local; | |
252 | } | |
253 | ||
254 | #endif | |
255 | ||
256 | struct ossl_init_stop_st { | |
257 | void (*handler)(void); | |
258 | OPENSSL_INIT_STOP *next; | |
259 | }; | |
260 | ||
261 | static OPENSSL_INIT_STOP *stop_handlers = NULL; | |
262 | ||
263 | static OPENSSL_INIT_ONCE base = OPENSSL_INIT_ONCE_STATIC_INIT; | |
264 | static int base_inited = 0; | |
265 | static void ossl_init_base(void) | |
266 | { | |
267 | #ifdef OPENSSL_INIT_DEBUG | |
268 | fprintf(stderr, "OPENSSL_INIT: ossl_init_base: Setting up stop handlers\n"); | |
269 | #endif | |
270 | ossl_init_setup_thread_stop(); | |
f672aee4 | 271 | atexit(OPENSSL_cleanup); |
b184e3ef MC |
272 | OPENSSL_cpuid_setup(); |
273 | base_inited = 1; | |
274 | } | |
275 | ||
276 | static OPENSSL_INIT_ONCE load_crypto_strings = OPENSSL_INIT_ONCE_STATIC_INIT; | |
277 | static int load_crypto_strings_inited = 0; | |
278 | static void ossl_init_no_load_crypto_strings(void) | |
279 | { | |
280 | /* Do nothing in this case */ | |
281 | return; | |
282 | } | |
283 | ||
284 | static void ossl_init_load_crypto_strings(void) | |
285 | { | |
498abff0 MC |
286 | /* |
287 | * OPENSSL_NO_AUTOERRINIT is provided here to prevent at compile time | |
288 | * pulling in all the error strings during static linking | |
289 | */ | |
290 | #if !defined(OPENSSL_NO_ERR) && !defined(OPENSSL_NO_AUTOERRINIT) | |
b184e3ef MC |
291 | # ifdef OPENSSL_INIT_DEBUG |
292 | fprintf(stderr, "OPENSSL_INIT: ossl_init_load_crypto_strings: " | |
293 | "err_load_crypto_strings_intern()\n"); | |
294 | # endif | |
b184e3ef | 295 | err_load_crypto_strings_intern(); |
b184e3ef MC |
296 | #endif |
297 | load_crypto_strings_inited = 1; | |
298 | } | |
299 | ||
300 | static OPENSSL_INIT_ONCE add_all_ciphers = OPENSSL_INIT_ONCE_STATIC_INIT; | |
301 | static void ossl_init_add_all_ciphers(void) | |
302 | { | |
303 | /* | |
304 | * OPENSSL_NO_AUTOALGINIT is provided here to prevent at compile time | |
305 | * pulling in all the ciphers during static linking | |
306 | */ | |
307 | #ifndef OPENSSL_NO_AUTOALGINIT | |
308 | # ifdef OPENSSL_INIT_DEBUG | |
309 | fprintf(stderr, "OPENSSL_INIT: ossl_init_add_all_ciphers: " | |
310 | "openssl_add_all_ciphers_internal()\n"); | |
311 | # endif | |
b184e3ef | 312 | openssl_add_all_ciphers_internal(); |
b184e3ef MC |
313 | # ifndef OPENSSL_NO_ENGINE |
314 | # if defined(__OpenBSD__) || defined(__FreeBSD__) || defined(HAVE_CRYPTODEV) | |
315 | ENGINE_setup_bsd_cryptodev(); | |
316 | # endif | |
317 | # endif | |
318 | #endif | |
319 | } | |
320 | ||
321 | static OPENSSL_INIT_ONCE add_all_digests = OPENSSL_INIT_ONCE_STATIC_INIT; | |
322 | static void ossl_init_add_all_digests(void) | |
323 | { | |
324 | /* | |
325 | * OPENSSL_NO_AUTOALGINIT is provided here to prevent at compile time | |
326 | * pulling in all the ciphers during static linking | |
327 | */ | |
328 | #ifndef OPENSSL_NO_AUTOALGINIT | |
329 | # ifdef OPENSSL_INIT_DEBUG | |
330 | fprintf(stderr, "OPENSSL_INIT: ossl_init_add_all_digests: " | |
331 | "openssl_add_all_digests_internal()\n"); | |
332 | # endif | |
b184e3ef | 333 | openssl_add_all_digests_internal(); |
b184e3ef MC |
334 | # ifndef OPENSSL_NO_ENGINE |
335 | # if defined(__OpenBSD__) || defined(__FreeBSD__) || defined(HAVE_CRYPTODEV) | |
336 | ENGINE_setup_bsd_cryptodev(); | |
337 | # endif | |
338 | # endif | |
339 | #endif | |
340 | } | |
341 | ||
342 | static void ossl_init_no_add_algs(void) | |
343 | { | |
344 | /* Do nothing */ | |
345 | return; | |
346 | } | |
347 | ||
348 | static OPENSSL_INIT_ONCE config = OPENSSL_INIT_ONCE_STATIC_INIT; | |
349 | static int config_inited = 0; | |
350 | static const char *config_filename; | |
351 | static void ossl_init_config(void) | |
352 | { | |
353 | #ifdef OPENSSL_INIT_DEBUG | |
354 | fprintf(stderr, | |
355 | "OPENSSL_INIT: ossl_init_config: openssl_config_internal(%s)\n", | |
356 | config_filename==NULL?"NULL":config_filename); | |
357 | #endif | |
b184e3ef | 358 | openssl_config_internal(config_filename); |
b184e3ef MC |
359 | config_inited = 1; |
360 | } | |
361 | static void ossl_init_no_config(void) | |
362 | { | |
363 | #ifdef OPENSSL_INIT_DEBUG | |
364 | fprintf(stderr, | |
365 | "OPENSSL_INIT: ossl_init_config: openssl_no_config_internal()\n"); | |
366 | #endif | |
b184e3ef | 367 | openssl_no_config_internal(); |
b184e3ef MC |
368 | config_inited = 1; |
369 | } | |
370 | ||
371 | static OPENSSL_INIT_ONCE async = OPENSSL_INIT_ONCE_STATIC_INIT; | |
372 | static int async_inited = 0; | |
373 | static void ossl_init_async(void) | |
374 | { | |
375 | #ifdef OPENSSL_INIT_DEBUG | |
376 | fprintf(stderr, "OPENSSL_INIT: ossl_init_async: async_init()\n"); | |
377 | #endif | |
b184e3ef | 378 | async_init(); |
b184e3ef MC |
379 | async_inited = 1; |
380 | } | |
381 | ||
382 | #ifndef OPENSSL_NO_ENGINE | |
383 | static int engine_inited = 0; | |
384 | static OPENSSL_INIT_ONCE engine_openssl = OPENSSL_INIT_ONCE_STATIC_INIT; | |
385 | static void ossl_init_engine_openssl(void) | |
386 | { | |
387 | # ifdef OPENSSL_INIT_DEBUG | |
388 | fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_openssl: " | |
389 | "engine_load_openssl_internal()\n"); | |
390 | # endif | |
b184e3ef | 391 | engine_load_openssl_internal(); |
b184e3ef MC |
392 | engine_inited = 1; |
393 | } | |
394 | # if !defined(OPENSSL_NO_HW) && \ | |
395 | (defined(__OpenBSD__) || defined(__FreeBSD__) || defined(HAVE_CRYPTODEV)) | |
396 | static OPENSSL_INIT_ONCE engine_cryptodev = OPENSSL_INIT_ONCE_STATIC_INIT; | |
397 | static void ossl_init_engine_cryptodev(void) | |
398 | { | |
399 | # ifdef OPENSSL_INIT_DEBUG | |
400 | fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_cryptodev: " | |
401 | "engine_load_cryptodev_internal()\n"); | |
402 | # endif | |
b184e3ef | 403 | engine_load_cryptodev_internal(); |
b184e3ef MC |
404 | engine_inited = 1; |
405 | } | |
406 | # endif | |
407 | ||
408 | # ifndef OPENSSL_NO_RDRAND | |
409 | static OPENSSL_INIT_ONCE engine_rdrand = OPENSSL_INIT_ONCE_STATIC_INIT; | |
410 | static void ossl_init_engine_rdrand(void) | |
411 | { | |
412 | # ifdef OPENSSL_INIT_DEBUG | |
413 | fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_rdrand: " | |
414 | "engine_load_rdrand_internal()\n"); | |
415 | # endif | |
b184e3ef | 416 | engine_load_rdrand_internal(); |
b184e3ef MC |
417 | engine_inited = 1; |
418 | } | |
419 | # endif | |
420 | static OPENSSL_INIT_ONCE engine_dynamic = OPENSSL_INIT_ONCE_STATIC_INIT; | |
421 | static void ossl_init_engine_dynamic(void) | |
422 | { | |
423 | # ifdef OPENSSL_INIT_DEBUG | |
424 | fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_dynamic: " | |
425 | "engine_load_dynamic_internal()\n"); | |
426 | # endif | |
b184e3ef | 427 | engine_load_dynamic_internal(); |
b184e3ef MC |
428 | engine_inited = 1; |
429 | } | |
430 | # ifndef OPENSSL_NO_STATIC_ENGINE | |
431 | # if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_HW_PADLOCK) | |
432 | static OPENSSL_INIT_ONCE engine_padlock = OPENSSL_INIT_ONCE_STATIC_INIT; | |
433 | static void ossl_init_engine_padlock(void) | |
434 | { | |
435 | # ifdef OPENSSL_INIT_DEBUG | |
436 | fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_padlock: " | |
437 | "engine_load_padlock_internal()\n"); | |
438 | # endif | |
b184e3ef | 439 | engine_load_padlock_internal(); |
b184e3ef MC |
440 | engine_inited = 1; |
441 | } | |
442 | # endif | |
443 | # if defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_NO_CAPIENG) | |
444 | static OPENSSL_INIT_ONCE engine_capi = OPENSSL_INIT_ONCE_STATIC_INIT; | |
445 | static void ossl_init_engine_capi(void) | |
446 | { | |
447 | # ifdef OPENSSL_INIT_DEBUG | |
448 | fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_capi: " | |
449 | "engine_load_capi_internal()\n"); | |
450 | # endif | |
b184e3ef | 451 | engine_load_capi_internal(); |
b184e3ef MC |
452 | engine_inited = 1; |
453 | } | |
454 | # endif | |
455 | static OPENSSL_INIT_ONCE engine_dasync = OPENSSL_INIT_ONCE_STATIC_INIT; | |
456 | static void ossl_init_engine_dasync(void) | |
457 | { | |
458 | # ifdef OPENSSL_INIT_DEBUG | |
459 | fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_dasync: " | |
460 | "engine_load_dasync_internal()\n"); | |
461 | # endif | |
b184e3ef | 462 | engine_load_dasync_internal(); |
b184e3ef MC |
463 | engine_inited = 1; |
464 | } | |
465 | # endif | |
466 | #endif | |
467 | ||
468 | static OPENSSL_INIT_ONCE zlib = OPENSSL_INIT_ONCE_STATIC_INIT; | |
469 | static int zlib_inited = 0; | |
470 | static void ossl_init_zlib(void) | |
471 | { | |
472 | /* Do nothing - we need to know about this for the later cleanup */ | |
473 | zlib_inited = 1; | |
474 | } | |
475 | ||
71567a6f | 476 | static void ossl_init_thread_stop(struct thread_local_inits_st *locals) |
b184e3ef MC |
477 | { |
478 | /* Can't do much about this */ | |
479 | if (locals == NULL) | |
480 | return; | |
481 | ||
482 | if (locals->async) { | |
483 | #ifdef OPENSSL_INIT_DEBUG | |
484 | fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_stop: " | |
485 | "ASYNC_cleanup_thread()\n"); | |
486 | #endif | |
487 | ASYNC_cleanup_thread(); | |
488 | } | |
489 | ||
490 | if (locals->err_state) { | |
491 | #ifdef OPENSSL_INIT_DEBUG | |
492 | fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_stop: " | |
493 | "ERR_remove_thread_state(NULL)\n"); | |
494 | #endif | |
495 | ERR_remove_thread_state(NULL); | |
496 | } | |
497 | ||
498 | OPENSSL_free(locals); | |
499 | ossl_init_thread_stop_cleanup(); | |
500 | } | |
501 | ||
f672aee4 | 502 | void OPENSSL_thread_stop(void) |
71567a6f MC |
503 | { |
504 | ossl_init_thread_stop( | |
505 | (struct thread_local_inits_st *)ossl_init_get_thread_local(0)); | |
506 | } | |
507 | ||
b184e3ef MC |
508 | int ossl_init_thread_start(uint64_t opts) |
509 | { | |
510 | struct thread_local_inits_st *locals = ossl_init_get_thread_local(1); | |
511 | ||
512 | if (locals == NULL) | |
513 | return 0; | |
514 | ||
515 | if (opts & OPENSSL_INIT_THREAD_ASYNC) { | |
516 | #ifdef OPENSSL_INIT_DEBUG | |
517 | fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_start: " | |
518 | "marking thread for async\n"); | |
519 | #endif | |
520 | locals->async = 1; | |
521 | } | |
522 | ||
523 | if (opts & OPENSSL_INIT_THREAD_ERR_STATE) { | |
524 | #ifdef OPENSSL_INIT_DEBUG | |
525 | fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_start: " | |
526 | "marking thread for err_state\n"); | |
527 | #endif | |
528 | locals->err_state = 1; | |
529 | } | |
530 | ||
531 | return 1; | |
532 | } | |
533 | ||
f672aee4 | 534 | void OPENSSL_cleanup(void) |
b184e3ef MC |
535 | { |
536 | OPENSSL_INIT_STOP *currhandler, *lasthandler; | |
537 | ||
deca5df2 MC |
538 | /* If we've not been inited then no need to deinit */ |
539 | if (!base_inited) | |
540 | return; | |
541 | ||
dd27f16e RS |
542 | /* Might be explicitly called and also by atexit */ |
543 | if (stopped) | |
544 | return; | |
545 | stopped = 1; | |
546 | ||
b184e3ef MC |
547 | /* |
548 | * Thread stop may not get automatically called by the thread library for | |
549 | * the very last thread in some situations, so call it directly. | |
550 | */ | |
551 | ossl_init_thread_stop(ossl_init_get_thread_local(0)); | |
552 | ||
553 | currhandler = stop_handlers; | |
554 | while (currhandler != NULL) { | |
555 | currhandler->handler(); | |
556 | lasthandler = currhandler; | |
557 | currhandler = currhandler->next; | |
558 | OPENSSL_free(lasthandler); | |
559 | } | |
560 | stop_handlers = NULL; | |
561 | /* | |
562 | * We assume we are single-threaded for this function, i.e. no race | |
563 | * conditions for the various "*_inited" vars below. | |
564 | */ | |
565 | ||
566 | if (zlib_inited) { | |
567 | #ifdef OPENSSL_INIT_DEBUG | |
f672aee4 | 568 | fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: " |
b184e3ef MC |
569 | "COMP_zlib_cleanup()\n"); |
570 | #endif | |
571 | COMP_zlib_cleanup(); | |
b184e3ef MC |
572 | } |
573 | ||
574 | #ifndef OPENSSL_NO_ENGINE | |
575 | if (engine_inited) { | |
576 | # ifdef OPENSSL_INIT_DEBUG | |
f672aee4 | 577 | fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: " |
b184e3ef MC |
578 | "ENGINE_cleanup()\n"); |
579 | # endif | |
580 | ENGINE_cleanup(); | |
b184e3ef MC |
581 | } |
582 | #endif | |
583 | ||
b184e3ef MC |
584 | if (load_crypto_strings_inited) { |
585 | #ifdef OPENSSL_INIT_DEBUG | |
f672aee4 | 586 | fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: " |
b184e3ef MC |
587 | "ERR_free_strings()\n"); |
588 | #endif | |
589 | ERR_free_strings(); | |
b184e3ef MC |
590 | } |
591 | ||
b184e3ef | 592 | #ifdef OPENSSL_INIT_DEBUG |
deca5df2 MC |
593 | fprintf(stderr, "OPENSSL_INIT: OPENSSL_INIT_library_stop: " |
594 | "CRYPTO_cleanup_all_ex_data()\n"); | |
595 | fprintf(stderr, "OPENSSL_INIT: OPENSSL_INIT_library_stop: " | |
596 | "EVP_cleanup()\n"); | |
597 | fprintf(stderr, "OPENSSL_INIT: OPENSSL_INIT_library_stop: " | |
598 | "CONF_modules_free()\n"); | |
599 | fprintf(stderr, "OPENSSL_INIT: OPENSSL_INIT_library_stop: " | |
600 | "RAND_cleanup()\n"); | |
b184e3ef | 601 | #endif |
deca5df2 MC |
602 | CRYPTO_cleanup_all_ex_data(); |
603 | EVP_cleanup(); | |
604 | CONF_modules_free(); | |
605 | RAND_cleanup(); | |
606 | base_inited = 0; | |
b184e3ef MC |
607 | } |
608 | ||
609 | static const OPENSSL_INIT_SETTINGS *ossl_init_get_setting( | |
610 | const OPENSSL_INIT_SETTINGS *settings, int name) | |
611 | { | |
612 | if (settings == NULL) | |
613 | return NULL; | |
614 | ||
615 | while (settings->name != OPENSSL_INIT_SET_END) { | |
616 | if (settings->name == name) | |
617 | return settings; | |
618 | settings++; | |
619 | } | |
620 | ||
621 | return NULL; | |
622 | } | |
623 | ||
624 | /* | |
625 | * If this function is called with a non NULL settings value then it must be | |
626 | * called prior to any threads making calls to any OpenSSL functions, | |
627 | * i.e. passing a non-null settings value is assumed to be single-threaded. | |
628 | */ | |
f672aee4 | 629 | void OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings) |
b184e3ef | 630 | { |
dd27f16e RS |
631 | /* XXX TODO WARNING To be updated to return a value not assert. */ |
632 | assert(!stopped); | |
633 | ||
b184e3ef MC |
634 | ossl_init_once_run(&base, ossl_init_base); |
635 | ||
636 | if (opts & OPENSSL_INIT_NO_LOAD_CRYPTO_STRINGS) | |
637 | ossl_init_once_run(&load_crypto_strings, | |
638 | ossl_init_no_load_crypto_strings); | |
639 | ||
640 | if (opts & OPENSSL_INIT_LOAD_CRYPTO_STRINGS) | |
641 | ossl_init_once_run(&load_crypto_strings, ossl_init_load_crypto_strings); | |
642 | ||
643 | if (opts & OPENSSL_INIT_NO_ADD_ALL_CIPHERS) | |
644 | ossl_init_once_run(&add_all_ciphers, ossl_init_no_add_algs); | |
645 | ||
646 | if (opts & OPENSSL_INIT_ADD_ALL_CIPHERS) | |
647 | ossl_init_once_run(&add_all_ciphers, ossl_init_add_all_ciphers); | |
648 | ||
649 | if (opts & OPENSSL_INIT_NO_ADD_ALL_DIGESTS) | |
650 | ossl_init_once_run(&add_all_digests, ossl_init_no_add_algs); | |
651 | ||
652 | if (opts & OPENSSL_INIT_ADD_ALL_DIGESTS) | |
653 | ossl_init_once_run(&add_all_digests, ossl_init_add_all_digests); | |
654 | ||
655 | if (opts & OPENSSL_INIT_NO_LOAD_CONFIG) { | |
656 | ossl_init_once_run(&config, ossl_init_no_config); | |
657 | } | |
658 | ||
659 | if (opts & OPENSSL_INIT_LOAD_CONFIG) { | |
bf24111b | 660 | CRYPTO_w_lock(CRYPTO_LOCK_INIT); |
b184e3ef MC |
661 | if (settings != NULL) { |
662 | const OPENSSL_INIT_SETTINGS *curr; | |
663 | curr = ossl_init_get_setting(settings, | |
664 | OPENSSL_INIT_SET_CONF_FILENAME); | |
bf24111b MC |
665 | config_filename = (curr == NULL) ? NULL : curr->value.type_string; |
666 | } else { | |
667 | config_filename = NULL; | |
b184e3ef MC |
668 | } |
669 | ossl_init_once_run(&config, ossl_init_config); | |
bf24111b | 670 | CRYPTO_w_unlock(CRYPTO_LOCK_INIT); |
b184e3ef MC |
671 | } |
672 | ||
673 | if (opts & OPENSSL_INIT_ASYNC) { | |
674 | ossl_init_once_run(&async, ossl_init_async); | |
675 | } | |
676 | ||
677 | #ifndef OPENSSL_NO_ENGINE | |
678 | if (opts & OPENSSL_INIT_ENGINE_OPENSSL) { | |
679 | ossl_init_once_run(&engine_openssl, ossl_init_engine_openssl); | |
680 | } | |
681 | # if !defined(OPENSSL_NO_HW) && \ | |
682 | (defined(__OpenBSD__) || defined(__FreeBSD__) || defined(HAVE_CRYPTODEV)) | |
683 | if (opts & OPENSSL_INIT_ENGINE_CRYPTODEV) { | |
684 | ossl_init_once_run(&engine_cryptodev, ossl_init_engine_cryptodev); | |
685 | } | |
686 | # endif | |
687 | # ifndef OPENSSL_NO_RDRAND | |
688 | if (opts & OPENSSL_INIT_ENGINE_RDRAND) { | |
689 | ossl_init_once_run(&engine_rdrand, ossl_init_engine_rdrand); | |
690 | } | |
691 | # endif | |
692 | if (opts & OPENSSL_INIT_ENGINE_DYNAMIC) { | |
693 | ossl_init_once_run(&engine_dynamic, ossl_init_engine_dynamic); | |
694 | } | |
695 | # ifndef OPENSSL_NO_STATIC_ENGINE | |
696 | # if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_HW_PADLOCK) | |
697 | if (opts & OPENSSL_INIT_ENGINE_PADLOCK) { | |
698 | ossl_init_once_run(&engine_padlock, ossl_init_engine_padlock); | |
699 | } | |
700 | # endif | |
701 | # if defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_NO_CAPIENG) | |
702 | if (opts & OPENSSL_INIT_ENGINE_CAPI) { | |
703 | ossl_init_once_run(&engine_capi, ossl_init_engine_capi); | |
704 | } | |
705 | # endif | |
706 | if (opts & OPENSSL_INIT_ENGINE_DASYNC) { | |
707 | ossl_init_once_run(&engine_dasync, ossl_init_engine_dasync); | |
708 | } | |
709 | # endif | |
710 | if (opts & (OPENSSL_INIT_ENGINE_ALL_BUILTIN | |
711 | | OPENSSL_INIT_ENGINE_DASYNC | OPENSSL_INIT_ENGINE_OPENSSL)) { | |
712 | ENGINE_register_all_complete(); | |
713 | } | |
714 | #endif | |
715 | ||
716 | if (opts & OPENSSL_INIT_ZLIB) { | |
717 | ossl_init_once_run(&zlib, ossl_init_zlib); | |
718 | } | |
719 | } | |
720 | ||
f672aee4 | 721 | int OPENSSL_atexit(void (*handler)(void)) |
b184e3ef MC |
722 | { |
723 | OPENSSL_INIT_STOP *newhand; | |
724 | ||
725 | newhand = OPENSSL_malloc(sizeof(*newhand)); | |
726 | if (newhand == NULL) | |
727 | return 0; | |
728 | ||
729 | newhand->handler = handler; | |
730 | newhand->next = stop_handlers; | |
731 | stop_handlers = newhand; | |
732 | ||
733 | return 1; | |
734 | } | |
735 | ||
736 |