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b184e3ef | 1 | /* |
3c2bdd7d | 2 | * Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved. |
b184e3ef | 3 | * |
0e9725bc | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
2039c421 RS |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
b184e3ef MC |
8 | */ |
9 | ||
e4468e6d P |
10 | /* We need to use some engine deprecated APIs */ |
11 | #define OPENSSL_SUPPRESS_DEPRECATED | |
12 | ||
d5f9166b | 13 | #include "internal/e_os.h" |
25f2138b | 14 | #include "crypto/cryptlib.h" |
b184e3ef | 15 | #include <openssl/err.h> |
25f2138b | 16 | #include "crypto/rand.h" |
176db6dc | 17 | #include "internal/bio.h" |
b184e3ef | 18 | #include <openssl/evp.h> |
25f2138b | 19 | #include "crypto/evp.h" |
176db6dc | 20 | #include "internal/conf.h" |
25f2138b DMSP |
21 | #include "crypto/async.h" |
22 | #include "crypto/engine.h" | |
176db6dc RS |
23 | #include "internal/comp.h" |
24 | #include "internal/err.h" | |
25f2138b DMSP |
25 | #include "crypto/err.h" |
26 | #include "crypto/objects.h" | |
b184e3ef | 27 | #include <stdlib.h> |
dd27f16e | 28 | #include <assert.h> |
176db6dc | 29 | #include "internal/thread_once.h" |
25f2138b | 30 | #include "crypto/dso_conf.h" |
176db6dc | 31 | #include "internal/dso.h" |
25f2138b | 32 | #include "crypto/store.h" |
7960dbec | 33 | #include <openssl/cmp_util.h> /* for OSSL_CMP_log_close() */ |
5c641735 | 34 | #include <openssl/trace.h> |
4b2bd272 | 35 | #include "crypto/ctype.h" |
dd27f16e RS |
36 | |
37 | static int stopped = 0; | |
db6bcc81 | 38 | static uint64_t optsdone = 0; |
b184e3ef | 39 | |
7253fd55 | 40 | typedef struct ossl_init_stop_st OPENSSL_INIT_STOP; |
b184e3ef MC |
41 | struct ossl_init_stop_st { |
42 | void (*handler)(void); | |
43 | OPENSSL_INIT_STOP *next; | |
44 | }; | |
45 | ||
46 | static OPENSSL_INIT_STOP *stop_handlers = NULL; | |
c292b105 | 47 | static CRYPTO_RWLOCK *init_lock = NULL; |
b5c4dc6c | 48 | static CRYPTO_THREAD_LOCAL in_init_config_local; |
b184e3ef | 49 | |
b1f1e7ae | 50 | static CRYPTO_ONCE base = CRYPTO_ONCE_STATIC_INIT; |
b184e3ef | 51 | static int base_inited = 0; |
c2e4e5d2 | 52 | DEFINE_RUN_ONCE_STATIC(ossl_init_base) |
b184e3ef | 53 | { |
cf0932cd | 54 | /* no need to init trace */ |
5c641735 RL |
55 | |
56 | OSSL_TRACE(INIT, "ossl_init_base: setting up stop handlers\n"); | |
f7edeced RS |
57 | #ifndef OPENSSL_NO_CRYPTO_MDEBUG |
58 | ossl_malloc_setup_failures(); | |
b184e3ef | 59 | #endif |
72592b86 | 60 | |
eb2b9892 BE |
61 | if ((init_lock = CRYPTO_THREAD_lock_new()) == NULL) |
62 | goto err; | |
b184e3ef | 63 | OPENSSL_cpuid_setup(); |
8aa9cf7e | 64 | |
2be8c56a | 65 | if (!ossl_init_thread()) |
b5c4dc6c TM |
66 | goto err; |
67 | ||
68 | if (!CRYPTO_THREAD_init_local(&in_init_config_local, NULL)) | |
69 | goto err; | |
72592b86 | 70 | |
b184e3ef | 71 | base_inited = 1; |
eb2b9892 BE |
72 | return 1; |
73 | ||
74 | err: | |
5c641735 | 75 | OSSL_TRACE(INIT, "ossl_init_base failed!\n"); |
eb2b9892 BE |
76 | CRYPTO_THREAD_lock_free(init_lock); |
77 | init_lock = NULL; | |
5836780f | 78 | |
eb2b9892 BE |
79 | return 0; |
80 | } | |
81 | ||
8f6a5c56 | 82 | static CRYPTO_ONCE register_atexit = CRYPTO_ONCE_STATIC_INIT; |
de2debc5 MC |
83 | #if !defined(OPENSSL_SYS_UEFI) && defined(_WIN32) |
84 | static int win32atexit(void) | |
85 | { | |
86 | OPENSSL_cleanup(); | |
87 | return 0; | |
88 | } | |
89 | #endif | |
90 | ||
8f6a5c56 MC |
91 | DEFINE_RUN_ONCE_STATIC(ossl_init_register_atexit) |
92 | { | |
de2debc5 | 93 | #ifdef OPENSSL_INIT_DEBUG |
8f6a5c56 | 94 | fprintf(stderr, "OPENSSL_INIT: ossl_init_register_atexit()\n"); |
de2debc5 | 95 | #endif |
8f6a5c56 | 96 | #ifndef OPENSSL_SYS_UEFI |
f1ee757d | 97 | # if defined(_WIN32) && !defined(__BORLANDC__) |
de2debc5 MC |
98 | /* We use _onexit() in preference because it gets called on DLL unload */ |
99 | if (_onexit(win32atexit) == NULL) | |
100 | return 0; | |
101 | # else | |
8f6a5c56 MC |
102 | if (atexit(OPENSSL_cleanup) != 0) |
103 | return 0; | |
de2debc5 | 104 | # endif |
8f6a5c56 MC |
105 | #endif |
106 | ||
107 | return 1; | |
108 | } | |
109 | ||
110 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_register_atexit, | |
111 | ossl_init_register_atexit) | |
112 | { | |
113 | #ifdef OPENSSL_INIT_DEBUG | |
114 | fprintf(stderr, "OPENSSL_INIT: ossl_init_no_register_atexit ok!\n"); | |
115 | #endif | |
116 | /* Do nothing in this case */ | |
117 | return 1; | |
118 | } | |
119 | ||
eb2b9892 BE |
120 | static CRYPTO_ONCE load_crypto_nodelete = CRYPTO_ONCE_STATIC_INIT; |
121 | DEFINE_RUN_ONCE_STATIC(ossl_init_load_crypto_nodelete) | |
122 | { | |
5c641735 RL |
123 | OSSL_TRACE(INIT, "ossl_init_load_crypto_nodelete()\n"); |
124 | ||
31b6ed76 | 125 | #if !defined(OPENSSL_USE_NODELETE) \ |
41999e7d | 126 | && !defined(OPENSSL_NO_PINSHARED) |
9c98aa35 | 127 | # if defined(DSO_WIN32) && !defined(_WIN32_WCE) |
2b59d1be MC |
128 | { |
129 | HMODULE handle = NULL; | |
130 | BOOL ret; | |
131 | ||
132 | /* We don't use the DSO route for WIN32 because there is a better way */ | |
133 | ret = GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | |
134 | | GET_MODULE_HANDLE_EX_FLAG_PIN, | |
135 | (void *)&base_inited, &handle); | |
136 | ||
5c641735 RL |
137 | OSSL_TRACE1(INIT, |
138 | "ossl_init_load_crypto_nodelete: " | |
139 | "obtained DSO reference? %s\n", | |
140 | (ret == TRUE ? "No!" : "Yes.")); | |
2b59d1be MC |
141 | return (ret == TRUE) ? 1 : 0; |
142 | } | |
31b6ed76 | 143 | # elif !defined(DSO_NONE) |
5836780f MC |
144 | /* |
145 | * Deliberately leak a reference to ourselves. This will force the library | |
689f112d | 146 | * to remain loaded until the atexit() handler is run at process exit. |
5836780f MC |
147 | */ |
148 | { | |
eb2b9892 BE |
149 | DSO *dso; |
150 | void *err; | |
151 | ||
152 | if (!err_shelve_state(&err)) | |
153 | return 0; | |
5836780f MC |
154 | |
155 | dso = DSO_dsobyaddr(&base_inited, DSO_FLAG_NO_UNLOAD_ON_FREE); | |
4af14b7b MK |
156 | /* |
157 | * In case of No!, it is uncertain our exit()-handlers can still be | |
158 | * called. After dlclose() the whole library might have been unloaded | |
159 | * already. | |
160 | */ | |
5c641735 RL |
161 | OSSL_TRACE1(INIT, "obtained DSO reference? %s\n", |
162 | (dso == NULL ? "No!" : "Yes.")); | |
5836780f | 163 | DSO_free(dso); |
eb2b9892 | 164 | err_unshelve_state(err); |
5836780f | 165 | } |
2b59d1be | 166 | # endif |
b6d5ba1a | 167 | #endif |
5836780f | 168 | |
c2e4e5d2 | 169 | return 1; |
b184e3ef MC |
170 | } |
171 | ||
b1f1e7ae | 172 | static CRYPTO_ONCE load_crypto_strings = CRYPTO_ONCE_STATIC_INIT; |
b184e3ef | 173 | static int load_crypto_strings_inited = 0; |
c2e4e5d2 | 174 | DEFINE_RUN_ONCE_STATIC(ossl_init_load_crypto_strings) |
b184e3ef | 175 | { |
69588edb | 176 | int ret = 1; |
498abff0 MC |
177 | /* |
178 | * OPENSSL_NO_AUTOERRINIT is provided here to prevent at compile time | |
179 | * pulling in all the error strings during static linking | |
180 | */ | |
181 | #if !defined(OPENSSL_NO_ERR) && !defined(OPENSSL_NO_AUTOERRINIT) | |
b93f6c2d P |
182 | OSSL_TRACE(INIT, "ossl_err_load_crypto_strings()\n"); |
183 | ret = ossl_err_load_crypto_strings(); | |
b184e3ef | 184 | load_crypto_strings_inited = 1; |
bd91e3c8 | 185 | #endif |
69588edb | 186 | return ret; |
b184e3ef MC |
187 | } |
188 | ||
660a1e04 MC |
189 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_load_crypto_strings, |
190 | ossl_init_load_crypto_strings) | |
191 | { | |
192 | /* Do nothing in this case */ | |
193 | return 1; | |
194 | } | |
195 | ||
b1f1e7ae | 196 | static CRYPTO_ONCE add_all_ciphers = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 197 | DEFINE_RUN_ONCE_STATIC(ossl_init_add_all_ciphers) |
b184e3ef MC |
198 | { |
199 | /* | |
200 | * OPENSSL_NO_AUTOALGINIT is provided here to prevent at compile time | |
201 | * pulling in all the ciphers during static linking | |
202 | */ | |
203 | #ifndef OPENSSL_NO_AUTOALGINIT | |
5c641735 | 204 | OSSL_TRACE(INIT, "openssl_add_all_ciphers_int()\n"); |
b3599dbb | 205 | openssl_add_all_ciphers_int(); |
b184e3ef | 206 | #endif |
c2e4e5d2 | 207 | return 1; |
b184e3ef MC |
208 | } |
209 | ||
660a1e04 MC |
210 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_add_all_ciphers, |
211 | ossl_init_add_all_ciphers) | |
212 | { | |
213 | /* Do nothing */ | |
214 | return 1; | |
215 | } | |
216 | ||
b1f1e7ae | 217 | static CRYPTO_ONCE add_all_digests = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 218 | DEFINE_RUN_ONCE_STATIC(ossl_init_add_all_digests) |
b184e3ef MC |
219 | { |
220 | /* | |
221 | * OPENSSL_NO_AUTOALGINIT is provided here to prevent at compile time | |
222 | * pulling in all the ciphers during static linking | |
223 | */ | |
224 | #ifndef OPENSSL_NO_AUTOALGINIT | |
5c641735 | 225 | OSSL_TRACE(INIT, "openssl_add_all_digests()\n"); |
b3599dbb | 226 | openssl_add_all_digests_int(); |
b184e3ef | 227 | #endif |
c2e4e5d2 | 228 | return 1; |
b184e3ef MC |
229 | } |
230 | ||
660a1e04 MC |
231 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_add_all_digests, |
232 | ossl_init_add_all_digests) | |
233 | { | |
234 | /* Do nothing */ | |
235 | return 1; | |
236 | } | |
237 | ||
b1f1e7ae | 238 | static CRYPTO_ONCE config = CRYPTO_ONCE_STATIC_INIT; |
b184e3ef | 239 | static int config_inited = 0; |
df1f538f | 240 | static const OPENSSL_INIT_SETTINGS *conf_settings = NULL; |
c2e4e5d2 | 241 | DEFINE_RUN_ONCE_STATIC(ossl_init_config) |
ae031148 | 242 | { |
f148f703 | 243 | int ret = ossl_config_int(NULL); |
ae031148 MC |
244 | |
245 | config_inited = 1; | |
246 | return ret; | |
247 | } | |
248 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_config_settings, ossl_init_config) | |
b184e3ef | 249 | { |
f148f703 | 250 | int ret = ossl_config_int(conf_settings); |
ae031148 | 251 | |
b184e3ef | 252 | config_inited = 1; |
df1f538f | 253 | return ret; |
b184e3ef | 254 | } |
660a1e04 | 255 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_config, ossl_init_config) |
b184e3ef | 256 | { |
f148f703 SL |
257 | OSSL_TRACE(INIT, "ossl_no_config_int()\n"); |
258 | ossl_no_config_int(); | |
b184e3ef | 259 | config_inited = 1; |
c2e4e5d2 | 260 | return 1; |
b184e3ef MC |
261 | } |
262 | ||
b1f1e7ae | 263 | static CRYPTO_ONCE async = CRYPTO_ONCE_STATIC_INIT; |
b184e3ef | 264 | static int async_inited = 0; |
c2e4e5d2 | 265 | DEFINE_RUN_ONCE_STATIC(ossl_init_async) |
b184e3ef | 266 | { |
5c641735 | 267 | OSSL_TRACE(INIT, "async_init()\n"); |
c2e4e5d2 RL |
268 | if (!async_init()) |
269 | return 0; | |
b184e3ef | 270 | async_inited = 1; |
c2e4e5d2 | 271 | return 1; |
b184e3ef MC |
272 | } |
273 | ||
4b2bd272 DB |
274 | static CRYPTO_ONCE casecmp = CRYPTO_ONCE_STATIC_INIT; |
275 | static int casecmp_inited = 0; | |
276 | DEFINE_RUN_ONCE_STATIC(ossl_init_casecmp) | |
277 | { | |
278 | int ret = ossl_init_casecmp_int(); | |
279 | ||
280 | casecmp_inited = 1; | |
281 | return ret; | |
282 | } | |
b184e3ef | 283 | #ifndef OPENSSL_NO_ENGINE |
b1f1e7ae | 284 | static CRYPTO_ONCE engine_openssl = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 285 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_openssl) |
b184e3ef | 286 | { |
5c641735 | 287 | OSSL_TRACE(INIT, "engine_load_openssl_int()\n"); |
b3599dbb | 288 | engine_load_openssl_int(); |
c2e4e5d2 | 289 | return 1; |
b184e3ef | 290 | } |
b184e3ef | 291 | # ifndef OPENSSL_NO_RDRAND |
b1f1e7ae | 292 | static CRYPTO_ONCE engine_rdrand = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 293 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_rdrand) |
b184e3ef | 294 | { |
5c641735 | 295 | OSSL_TRACE(INIT, "engine_load_rdrand_int()\n"); |
b3599dbb | 296 | engine_load_rdrand_int(); |
c2e4e5d2 | 297 | return 1; |
b184e3ef MC |
298 | } |
299 | # endif | |
b1f1e7ae | 300 | static CRYPTO_ONCE engine_dynamic = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 301 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_dynamic) |
b184e3ef | 302 | { |
5c641735 | 303 | OSSL_TRACE(INIT, "engine_load_dynamic_int()\n"); |
b3599dbb | 304 | engine_load_dynamic_int(); |
c2e4e5d2 | 305 | return 1; |
b184e3ef MC |
306 | } |
307 | # ifndef OPENSSL_NO_STATIC_ENGINE | |
2afebe0b EQ |
308 | # ifndef OPENSSL_NO_DEVCRYPTOENG |
309 | static CRYPTO_ONCE engine_devcrypto = CRYPTO_ONCE_STATIC_INIT; | |
310 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_devcrypto) | |
311 | { | |
5c641735 | 312 | OSSL_TRACE(INIT, "engine_load_devcrypto_int()\n"); |
2afebe0b EQ |
313 | engine_load_devcrypto_int(); |
314 | return 1; | |
315 | } | |
316 | # endif | |
469ce8ff | 317 | # if !defined(OPENSSL_NO_PADLOCKENG) |
b1f1e7ae | 318 | static CRYPTO_ONCE engine_padlock = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 319 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_padlock) |
b184e3ef | 320 | { |
5c641735 | 321 | OSSL_TRACE(INIT, "engine_load_padlock_int()\n"); |
b3599dbb | 322 | engine_load_padlock_int(); |
c2e4e5d2 | 323 | return 1; |
b184e3ef MC |
324 | } |
325 | # endif | |
326 | # if defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_NO_CAPIENG) | |
b1f1e7ae | 327 | static CRYPTO_ONCE engine_capi = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 328 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_capi) |
b184e3ef | 329 | { |
5c641735 | 330 | OSSL_TRACE(INIT, "engine_load_capi_int()\n"); |
b3599dbb | 331 | engine_load_capi_int(); |
c2e4e5d2 | 332 | return 1; |
b184e3ef MC |
333 | } |
334 | # endif | |
6cba4a66 | 335 | # if !defined(OPENSSL_NO_AFALGENG) |
a4d8bcf1 | 336 | static CRYPTO_ONCE engine_afalg = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 337 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_afalg) |
6cba4a66 | 338 | { |
5c641735 | 339 | OSSL_TRACE(INIT, "engine_load_afalg_int()\n"); |
b3599dbb | 340 | engine_load_afalg_int(); |
c2e4e5d2 | 341 | return 1; |
6cba4a66 | 342 | } |
343 | # endif | |
b184e3ef MC |
344 | # endif |
345 | #endif | |
346 | ||
f672aee4 | 347 | void OPENSSL_cleanup(void) |
b184e3ef MC |
348 | { |
349 | OPENSSL_INIT_STOP *currhandler, *lasthandler; | |
350 | ||
65a1e917 | 351 | /* |
50864bd2 MC |
352 | * At some point we should consider looking at this function with a view to |
353 | * moving most/all of this into onfree handlers in OSSL_LIB_CTX. | |
65a1e917 MC |
354 | */ |
355 | ||
deca5df2 MC |
356 | /* If we've not been inited then no need to deinit */ |
357 | if (!base_inited) | |
358 | return; | |
359 | ||
dd27f16e RS |
360 | /* Might be explicitly called and also by atexit */ |
361 | if (stopped) | |
362 | return; | |
363 | stopped = 1; | |
364 | ||
b184e3ef MC |
365 | /* |
366 | * Thread stop may not get automatically called by the thread library for | |
367 | * the very last thread in some situations, so call it directly. | |
368 | */ | |
72592b86 | 369 | OPENSSL_thread_stop(); |
b184e3ef MC |
370 | |
371 | currhandler = stop_handlers; | |
372 | while (currhandler != NULL) { | |
373 | currhandler->handler(); | |
374 | lasthandler = currhandler; | |
375 | currhandler = currhandler->next; | |
376 | OPENSSL_free(lasthandler); | |
377 | } | |
378 | stop_handlers = NULL; | |
c292b105 MC |
379 | |
380 | CRYPTO_THREAD_lock_free(init_lock); | |
adeb4bc7 | 381 | init_lock = NULL; |
c292b105 | 382 | |
b5c4dc6c TM |
383 | CRYPTO_THREAD_cleanup_local(&in_init_config_local); |
384 | ||
b184e3ef MC |
385 | /* |
386 | * We assume we are single-threaded for this function, i.e. no race | |
387 | * conditions for the various "*_inited" vars below. | |
388 | */ | |
389 | ||
e4ad0763 | 390 | #ifndef OPENSSL_NO_COMP |
309c6fba TS |
391 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_comp_zlib_cleanup()\n"); |
392 | ossl_comp_zlib_cleanup(); | |
e4ad0763 | 393 | #endif |
b184e3ef | 394 | |
ed49f43a | 395 | if (async_inited) { |
5c641735 | 396 | OSSL_TRACE(INIT, "OPENSSL_cleanup: async_deinit()\n"); |
ed49f43a MC |
397 | async_deinit(); |
398 | } | |
ed49f43a | 399 | |
b184e3ef | 400 | if (load_crypto_strings_inited) { |
5c641735 | 401 | OSSL_TRACE(INIT, "OPENSSL_cleanup: err_free_strings_int()\n"); |
b3599dbb | 402 | err_free_strings_int(); |
b184e3ef MC |
403 | } |
404 | ||
58a8fc25 MC |
405 | /* |
406 | * Note that cleanup order is important: | |
1335ca4b | 407 | * - ossl_rand_cleanup_int could call an ENGINE's RAND cleanup function so |
b3599dbb | 408 | * must be called before engine_cleanup_int() |
58a8fc25 | 409 | * - ENGINEs use CRYPTO_EX_DATA and therefore, must be cleaned up |
b4250010 | 410 | * before the ex data handlers are wiped during default ossl_lib_ctx deinit. |
f148f703 | 411 | * - ossl_config_modules_free() can end up in ENGINE code so must be called |
b3599dbb | 412 | * before engine_cleanup_int() |
a535fe12 | 413 | * - ENGINEs and additional EVP algorithms might use added OIDs names so |
f148f703 | 414 | * ossl_obj_cleanup_int() must be called last |
58a8fc25 | 415 | */ |
1335ca4b SL |
416 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_rand_cleanup_int()\n"); |
417 | ossl_rand_cleanup_int(); | |
5c641735 | 418 | |
f148f703 SL |
419 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_config_modules_free()\n"); |
420 | ossl_config_modules_free(); | |
1aedc35f | 421 | |
773fd0ba | 422 | #ifndef OPENSSL_NO_ENGINE |
5c641735 | 423 | OSSL_TRACE(INIT, "OPENSSL_cleanup: engine_cleanup_int()\n"); |
b3599dbb | 424 | engine_cleanup_int(); |
773fd0ba | 425 | #endif |
a1447076 RL |
426 | |
427 | #ifndef OPENSSL_NO_DEPRECATED_3_0 | |
5c641735 | 428 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_store_cleanup_int()\n"); |
71a5516d | 429 | ossl_store_cleanup_int(); |
a1447076 | 430 | #endif |
5c641735 | 431 | |
b4250010 DMSP |
432 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_lib_ctx_default_deinit()\n"); |
433 | ossl_lib_ctx_default_deinit(); | |
5c641735 | 434 | |
6913f5fe MC |
435 | ossl_cleanup_thread(); |
436 | ||
5c641735 | 437 | OSSL_TRACE(INIT, "OPENSSL_cleanup: bio_cleanup()\n"); |
ff234405 | 438 | bio_cleanup(); |
5c641735 RL |
439 | |
440 | OSSL_TRACE(INIT, "OPENSSL_cleanup: evp_cleanup_int()\n"); | |
b3599dbb | 441 | evp_cleanup_int(); |
5c641735 | 442 | |
f148f703 SL |
443 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_obj_cleanup_int()\n"); |
444 | ossl_obj_cleanup_int(); | |
5c641735 RL |
445 | |
446 | OSSL_TRACE(INIT, "OPENSSL_cleanup: err_int()\n"); | |
ff234405 MC |
447 | err_cleanup(); |
448 | ||
5c641735 | 449 | OSSL_TRACE(INIT, "OPENSSL_cleanup: CRYPTO_secure_malloc_done()\n"); |
d7c402c4 DMSP |
450 | CRYPTO_secure_malloc_done(); |
451 | ||
7960dbec DDO |
452 | #ifndef OPENSSL_NO_CMP |
453 | OSSL_TRACE(INIT, "OPENSSL_cleanup: OSSL_CMP_log_close()\n"); | |
454 | OSSL_CMP_log_close(); | |
455 | #endif | |
456 | ||
5c641735 RL |
457 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_trace_cleanup()\n"); |
458 | ossl_trace_cleanup(); | |
459 | ||
1d64b068 MB |
460 | if (casecmp_inited) { |
461 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_deinit_casecmp()\n"); | |
462 | ossl_deinit_casecmp(); | |
463 | } | |
464 | ||
deca5df2 | 465 | base_inited = 0; |
b184e3ef MC |
466 | } |
467 | ||
b184e3ef MC |
468 | /* |
469 | * If this function is called with a non NULL settings value then it must be | |
470 | * called prior to any threads making calls to any OpenSSL functions, | |
471 | * i.e. passing a non-null settings value is assumed to be single-threaded. | |
472 | */ | |
0fc32b07 | 473 | int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings) |
b184e3ef | 474 | { |
db6bcc81 MC |
475 | uint64_t tmp; |
476 | int aloaddone = 0; | |
4b2bd272 DB |
477 | if (!RUN_ONCE(&casecmp, ossl_init_casecmp)) |
478 | return 0; | |
479 | ||
db6bcc81 | 480 | |
7d69c07d TM |
481 | /* Applications depend on 0 being returned when cleanup was already done */ |
482 | if (stopped) { | |
483 | if (!(opts & OPENSSL_INIT_BASE_ONLY)) | |
484 | ERR_raise(ERR_LIB_CRYPTO, ERR_R_INIT_FAIL); | |
485 | return 0; | |
486 | } | |
487 | ||
db6bcc81 MC |
488 | /* |
489 | * We ignore failures from this function. It is probably because we are | |
490 | * on a platform that doesn't support lockless atomic loads (we may not | |
491 | * have created init_lock yet so we can't use it). This is just an | |
492 | * optimisation to skip the full checks in this function if we don't need | |
493 | * to, so we carry on regardless in the event of failure. | |
494 | * | |
495 | * There could be a race here with other threads, so that optsdone has not | |
496 | * been updated yet, even though the options have in fact been initialised. | |
497 | * This doesn't matter - it just means we will run the full function | |
498 | * unnecessarily - but all the critical code is contained in RUN_ONCE | |
499 | * functions anyway so we are safe. | |
500 | */ | |
501 | if (CRYPTO_atomic_load(&optsdone, &tmp, NULL)) { | |
502 | if ((tmp & opts) == opts) | |
503 | return 1; | |
504 | aloaddone = 1; | |
505 | } | |
506 | ||
65a1e917 | 507 | /* |
50864bd2 MC |
508 | * At some point we should look at this function with a view to moving |
509 | * most/all of this into OSSL_LIB_CTX. | |
7d69c07d | 510 | * |
df1f538f VD |
511 | * When the caller specifies OPENSSL_INIT_BASE_ONLY, that should be the |
512 | * *only* option specified. With that option we return immediately after | |
513 | * doing the requested limited initialization. Note that | |
514 | * err_shelve_state() called by us via ossl_init_load_crypto_nodelete() | |
515 | * re-enters OPENSSL_init_crypto() with OPENSSL_INIT_BASE_ONLY, but with | |
516 | * base already initialized this is a harmless NOOP. | |
517 | * | |
518 | * If we remain the only caller of err_shelve_state() the recursion should | |
519 | * perhaps be removed, but if in doubt, it can be left in place. | |
520 | */ | |
eb2b9892 BE |
521 | if (!RUN_ONCE(&base, ossl_init_base)) |
522 | return 0; | |
523 | ||
df1f538f VD |
524 | if (opts & OPENSSL_INIT_BASE_ONLY) |
525 | return 1; | |
526 | ||
db6bcc81 MC |
527 | /* |
528 | * init_lock should definitely be set up now, so we can now repeat the | |
529 | * same check from above but be sure that it will work even on platforms | |
530 | * without lockless CRYPTO_atomic_load | |
531 | */ | |
532 | if (!aloaddone) { | |
533 | if (!CRYPTO_atomic_load(&optsdone, &tmp, init_lock)) | |
534 | return 0; | |
535 | if ((tmp & opts) == opts) | |
536 | return 1; | |
537 | } | |
538 | ||
df1f538f VD |
539 | /* |
540 | * Now we don't always set up exit handlers, the INIT_BASE_ONLY calls | |
541 | * should not have the side-effect of setting up exit handlers, and | |
542 | * therefore, this code block is below the INIT_BASE_ONLY-conditioned early | |
543 | * return above. | |
544 | */ | |
8f6a5c56 MC |
545 | if ((opts & OPENSSL_INIT_NO_ATEXIT) != 0) { |
546 | if (!RUN_ONCE_ALT(®ister_atexit, ossl_init_no_register_atexit, | |
547 | ossl_init_register_atexit)) | |
548 | return 0; | |
549 | } else if (!RUN_ONCE(®ister_atexit, ossl_init_register_atexit)) { | |
550 | return 0; | |
551 | } | |
552 | ||
df1f538f | 553 | if (!RUN_ONCE(&load_crypto_nodelete, ossl_init_load_crypto_nodelete)) |
b1f1e7ae | 554 | return 0; |
b184e3ef | 555 | |
b1f1e7ae | 556 | if ((opts & OPENSSL_INIT_NO_LOAD_CRYPTO_STRINGS) |
660a1e04 MC |
557 | && !RUN_ONCE_ALT(&load_crypto_strings, |
558 | ossl_init_no_load_crypto_strings, | |
559 | ossl_init_load_crypto_strings)) | |
b1f1e7ae | 560 | return 0; |
b184e3ef | 561 | |
b1f1e7ae | 562 | if ((opts & OPENSSL_INIT_LOAD_CRYPTO_STRINGS) |
c2e4e5d2 | 563 | && !RUN_ONCE(&load_crypto_strings, ossl_init_load_crypto_strings)) |
b1f1e7ae | 564 | return 0; |
b184e3ef | 565 | |
b1f1e7ae | 566 | if ((opts & OPENSSL_INIT_NO_ADD_ALL_CIPHERS) |
660a1e04 MC |
567 | && !RUN_ONCE_ALT(&add_all_ciphers, ossl_init_no_add_all_ciphers, |
568 | ossl_init_add_all_ciphers)) | |
b1f1e7ae | 569 | return 0; |
b184e3ef | 570 | |
b1f1e7ae | 571 | if ((opts & OPENSSL_INIT_ADD_ALL_CIPHERS) |
c2e4e5d2 | 572 | && !RUN_ONCE(&add_all_ciphers, ossl_init_add_all_ciphers)) |
b1f1e7ae | 573 | return 0; |
b184e3ef | 574 | |
b1f1e7ae | 575 | if ((opts & OPENSSL_INIT_NO_ADD_ALL_DIGESTS) |
660a1e04 MC |
576 | && !RUN_ONCE_ALT(&add_all_digests, ossl_init_no_add_all_digests, |
577 | ossl_init_add_all_digests)) | |
b1f1e7ae | 578 | return 0; |
b184e3ef | 579 | |
b1f1e7ae | 580 | if ((opts & OPENSSL_INIT_ADD_ALL_DIGESTS) |
c2e4e5d2 | 581 | && !RUN_ONCE(&add_all_digests, ossl_init_add_all_digests)) |
b1f1e7ae | 582 | return 0; |
b184e3ef | 583 | |
b5319bdb | 584 | if ((opts & OPENSSL_INIT_ATFORK) |
2915fe19 RS |
585 | && !openssl_init_fork_handlers()) |
586 | return 0; | |
587 | ||
b1f1e7ae | 588 | if ((opts & OPENSSL_INIT_NO_LOAD_CONFIG) |
660a1e04 | 589 | && !RUN_ONCE_ALT(&config, ossl_init_no_config, ossl_init_config)) |
b1f1e7ae | 590 | return 0; |
b184e3ef MC |
591 | |
592 | if (opts & OPENSSL_INIT_LOAD_CONFIG) { | |
b5c4dc6c | 593 | int loading = CRYPTO_THREAD_get_local(&in_init_config_local) != NULL; |
ae031148 | 594 | |
b5c4dc6c TM |
595 | /* If called recursively from OBJ_ calls, just skip it. */ |
596 | if (!loading) { | |
597 | int ret; | |
598 | ||
599 | if (!CRYPTO_THREAD_set_local(&in_init_config_local, (void *)-1)) | |
600 | return 0; | |
601 | if (settings == NULL) { | |
602 | ret = RUN_ONCE(&config, ossl_init_config); | |
603 | } else { | |
604 | if (!CRYPTO_THREAD_write_lock(init_lock)) | |
605 | return 0; | |
606 | conf_settings = settings; | |
607 | ret = RUN_ONCE_ALT(&config, ossl_init_config_settings, | |
608 | ossl_init_config); | |
609 | conf_settings = NULL; | |
610 | CRYPTO_THREAD_unlock(init_lock); | |
611 | } | |
612 | ||
613 | if (ret <= 0) | |
cd3f8c1b | 614 | return 0; |
ae031148 | 615 | } |
b184e3ef MC |
616 | } |
617 | ||
b1f1e7ae | 618 | if ((opts & OPENSSL_INIT_ASYNC) |
c2e4e5d2 | 619 | && !RUN_ONCE(&async, ossl_init_async)) |
b1f1e7ae | 620 | return 0; |
7626fbf2 | 621 | |
b184e3ef | 622 | #ifndef OPENSSL_NO_ENGINE |
b1f1e7ae | 623 | if ((opts & OPENSSL_INIT_ENGINE_OPENSSL) |
c2e4e5d2 | 624 | && !RUN_ONCE(&engine_openssl, ossl_init_engine_openssl)) |
b1f1e7ae | 625 | return 0; |
b184e3ef | 626 | # ifndef OPENSSL_NO_RDRAND |
b1f1e7ae | 627 | if ((opts & OPENSSL_INIT_ENGINE_RDRAND) |
c2e4e5d2 | 628 | && !RUN_ONCE(&engine_rdrand, ossl_init_engine_rdrand)) |
b1f1e7ae | 629 | return 0; |
b184e3ef | 630 | # endif |
b1f1e7ae | 631 | if ((opts & OPENSSL_INIT_ENGINE_DYNAMIC) |
c2e4e5d2 | 632 | && !RUN_ONCE(&engine_dynamic, ossl_init_engine_dynamic)) |
b1f1e7ae | 633 | return 0; |
b184e3ef | 634 | # ifndef OPENSSL_NO_STATIC_ENGINE |
2afebe0b EQ |
635 | # ifndef OPENSSL_NO_DEVCRYPTOENG |
636 | if ((opts & OPENSSL_INIT_ENGINE_CRYPTODEV) | |
637 | && !RUN_ONCE(&engine_devcrypto, ossl_init_engine_devcrypto)) | |
638 | return 0; | |
639 | # endif | |
469ce8ff | 640 | # if !defined(OPENSSL_NO_PADLOCKENG) |
b1f1e7ae | 641 | if ((opts & OPENSSL_INIT_ENGINE_PADLOCK) |
c2e4e5d2 | 642 | && !RUN_ONCE(&engine_padlock, ossl_init_engine_padlock)) |
b1f1e7ae | 643 | return 0; |
b184e3ef MC |
644 | # endif |
645 | # if defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_NO_CAPIENG) | |
b1f1e7ae | 646 | if ((opts & OPENSSL_INIT_ENGINE_CAPI) |
c2e4e5d2 | 647 | && !RUN_ONCE(&engine_capi, ossl_init_engine_capi)) |
b1f1e7ae | 648 | return 0; |
b184e3ef | 649 | # endif |
6cba4a66 | 650 | # if !defined(OPENSSL_NO_AFALGENG) |
b1f1e7ae | 651 | if ((opts & OPENSSL_INIT_ENGINE_AFALG) |
c2e4e5d2 | 652 | && !RUN_ONCE(&engine_afalg, ossl_init_engine_afalg)) |
b1f1e7ae | 653 | return 0; |
6cba4a66 | 654 | # endif |
b184e3ef MC |
655 | # endif |
656 | if (opts & (OPENSSL_INIT_ENGINE_ALL_BUILTIN | |
8d00e30f | 657 | | OPENSSL_INIT_ENGINE_OPENSSL |
6cba4a66 | 658 | | OPENSSL_INIT_ENGINE_AFALG)) { |
b184e3ef MC |
659 | ENGINE_register_all_complete(); |
660 | } | |
661 | #endif | |
662 | ||
db6bcc81 MC |
663 | if (!CRYPTO_atomic_or(&optsdone, opts, &tmp, init_lock)) |
664 | return 0; | |
665 | ||
0fc32b07 | 666 | return 1; |
b184e3ef MC |
667 | } |
668 | ||
f672aee4 | 669 | int OPENSSL_atexit(void (*handler)(void)) |
b184e3ef MC |
670 | { |
671 | OPENSSL_INIT_STOP *newhand; | |
672 | ||
31b6ed76 | 673 | #if !defined(OPENSSL_USE_NODELETE)\ |
41999e7d | 674 | && !defined(OPENSSL_NO_PINSHARED) |
5836780f | 675 | { |
5836780f MC |
676 | union { |
677 | void *sym; | |
678 | void (*func)(void); | |
679 | } handlersym; | |
680 | ||
681 | handlersym.func = handler; | |
9c98aa35 | 682 | # if defined(DSO_WIN32) && !defined(_WIN32_WCE) |
2b59d1be MC |
683 | { |
684 | HMODULE handle = NULL; | |
685 | BOOL ret; | |
5836780f | 686 | |
2b59d1be MC |
687 | /* |
688 | * We don't use the DSO route for WIN32 because there is a better | |
689 | * way | |
690 | */ | |
691 | ret = GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | |
692 | | GET_MODULE_HANDLE_EX_FLAG_PIN, | |
693 | handlersym.sym, &handle); | |
694 | ||
695 | if (!ret) | |
696 | return 0; | |
697 | } | |
31b6ed76 | 698 | # elif !defined(DSO_NONE) |
2b59d1be MC |
699 | /* |
700 | * Deliberately leak a reference to the handler. This will force the | |
701 | * library/code containing the handler to remain loaded until we run the | |
702 | * atexit handler. If -znodelete has been used then this is | |
c9a41d7d | 703 | * unnecessary. |
2b59d1be MC |
704 | */ |
705 | { | |
706 | DSO *dso = NULL; | |
707 | ||
689f112d | 708 | ERR_set_mark(); |
2b59d1be | 709 | dso = DSO_dsobyaddr(handlersym.sym, DSO_FLAG_NO_UNLOAD_ON_FREE); |
4af14b7b | 710 | /* See same code above in ossl_init_base() for an explanation. */ |
5c641735 RL |
711 | OSSL_TRACE1(INIT, |
712 | "atexit: obtained DSO reference? %s\n", | |
713 | (dso == NULL ? "No!" : "Yes.")); | |
2b59d1be | 714 | DSO_free(dso); |
689f112d | 715 | ERR_pop_to_mark(); |
2b59d1be MC |
716 | } |
717 | # endif | |
5836780f | 718 | } |
b6d5ba1a | 719 | #endif |
5836780f | 720 | |
cdb10bae | 721 | if ((newhand = OPENSSL_malloc(sizeof(*newhand))) == NULL) { |
9311d0c4 | 722 | ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE); |
b184e3ef | 723 | return 0; |
cdb10bae | 724 | } |
b184e3ef MC |
725 | |
726 | newhand->handler = handler; | |
727 | newhand->next = stop_handlers; | |
728 | stop_handlers = newhand; | |
729 | ||
730 | return 1; | |
731 | } | |
2915fe19 | 732 |