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Commit | Line | Data |
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b184e3ef | 1 | /* |
fecb3aae | 2 | * Copyright 2016-2022 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; |
1c8787d5 | 173 | |
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(); | |
bd91e3c8 | 184 | #endif |
69588edb | 185 | return ret; |
b184e3ef MC |
186 | } |
187 | ||
660a1e04 MC |
188 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_load_crypto_strings, |
189 | ossl_init_load_crypto_strings) | |
190 | { | |
191 | /* Do nothing in this case */ | |
192 | return 1; | |
193 | } | |
194 | ||
b1f1e7ae | 195 | static CRYPTO_ONCE add_all_ciphers = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 196 | DEFINE_RUN_ONCE_STATIC(ossl_init_add_all_ciphers) |
b184e3ef MC |
197 | { |
198 | /* | |
199 | * OPENSSL_NO_AUTOALGINIT is provided here to prevent at compile time | |
200 | * pulling in all the ciphers during static linking | |
201 | */ | |
202 | #ifndef OPENSSL_NO_AUTOALGINIT | |
5c641735 | 203 | OSSL_TRACE(INIT, "openssl_add_all_ciphers_int()\n"); |
b3599dbb | 204 | openssl_add_all_ciphers_int(); |
b184e3ef | 205 | #endif |
c2e4e5d2 | 206 | return 1; |
b184e3ef MC |
207 | } |
208 | ||
660a1e04 MC |
209 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_add_all_ciphers, |
210 | ossl_init_add_all_ciphers) | |
211 | { | |
212 | /* Do nothing */ | |
213 | return 1; | |
214 | } | |
215 | ||
b1f1e7ae | 216 | static CRYPTO_ONCE add_all_digests = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 217 | DEFINE_RUN_ONCE_STATIC(ossl_init_add_all_digests) |
b184e3ef MC |
218 | { |
219 | /* | |
220 | * OPENSSL_NO_AUTOALGINIT is provided here to prevent at compile time | |
221 | * pulling in all the ciphers during static linking | |
222 | */ | |
223 | #ifndef OPENSSL_NO_AUTOALGINIT | |
5c641735 | 224 | OSSL_TRACE(INIT, "openssl_add_all_digests()\n"); |
b3599dbb | 225 | openssl_add_all_digests_int(); |
b184e3ef | 226 | #endif |
c2e4e5d2 | 227 | return 1; |
b184e3ef MC |
228 | } |
229 | ||
660a1e04 MC |
230 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_add_all_digests, |
231 | ossl_init_add_all_digests) | |
232 | { | |
233 | /* Do nothing */ | |
234 | return 1; | |
235 | } | |
236 | ||
b1f1e7ae | 237 | static CRYPTO_ONCE config = CRYPTO_ONCE_STATIC_INIT; |
b184e3ef | 238 | static int config_inited = 0; |
df1f538f | 239 | static const OPENSSL_INIT_SETTINGS *conf_settings = NULL; |
c2e4e5d2 | 240 | DEFINE_RUN_ONCE_STATIC(ossl_init_config) |
ae031148 | 241 | { |
f148f703 | 242 | int ret = ossl_config_int(NULL); |
ae031148 MC |
243 | |
244 | config_inited = 1; | |
245 | return ret; | |
246 | } | |
247 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_config_settings, ossl_init_config) | |
b184e3ef | 248 | { |
f148f703 | 249 | int ret = ossl_config_int(conf_settings); |
ae031148 | 250 | |
b184e3ef | 251 | config_inited = 1; |
df1f538f | 252 | return ret; |
b184e3ef | 253 | } |
660a1e04 | 254 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_config, ossl_init_config) |
b184e3ef | 255 | { |
f148f703 SL |
256 | OSSL_TRACE(INIT, "ossl_no_config_int()\n"); |
257 | ossl_no_config_int(); | |
b184e3ef | 258 | config_inited = 1; |
c2e4e5d2 | 259 | return 1; |
b184e3ef MC |
260 | } |
261 | ||
b1f1e7ae | 262 | static CRYPTO_ONCE async = CRYPTO_ONCE_STATIC_INIT; |
b184e3ef | 263 | static int async_inited = 0; |
c2e4e5d2 | 264 | DEFINE_RUN_ONCE_STATIC(ossl_init_async) |
b184e3ef | 265 | { |
5c641735 | 266 | OSSL_TRACE(INIT, "async_init()\n"); |
c2e4e5d2 RL |
267 | if (!async_init()) |
268 | return 0; | |
b184e3ef | 269 | async_inited = 1; |
c2e4e5d2 | 270 | return 1; |
b184e3ef MC |
271 | } |
272 | ||
273 | #ifndef OPENSSL_NO_ENGINE | |
b1f1e7ae | 274 | static CRYPTO_ONCE engine_openssl = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 275 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_openssl) |
b184e3ef | 276 | { |
5c641735 | 277 | OSSL_TRACE(INIT, "engine_load_openssl_int()\n"); |
b3599dbb | 278 | engine_load_openssl_int(); |
c2e4e5d2 | 279 | return 1; |
b184e3ef | 280 | } |
b184e3ef | 281 | # ifndef OPENSSL_NO_RDRAND |
b1f1e7ae | 282 | static CRYPTO_ONCE engine_rdrand = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 283 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_rdrand) |
b184e3ef | 284 | { |
5c641735 | 285 | OSSL_TRACE(INIT, "engine_load_rdrand_int()\n"); |
b3599dbb | 286 | engine_load_rdrand_int(); |
c2e4e5d2 | 287 | return 1; |
b184e3ef MC |
288 | } |
289 | # endif | |
b1f1e7ae | 290 | static CRYPTO_ONCE engine_dynamic = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 291 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_dynamic) |
b184e3ef | 292 | { |
5c641735 | 293 | OSSL_TRACE(INIT, "engine_load_dynamic_int()\n"); |
b3599dbb | 294 | engine_load_dynamic_int(); |
c2e4e5d2 | 295 | return 1; |
b184e3ef MC |
296 | } |
297 | # ifndef OPENSSL_NO_STATIC_ENGINE | |
2afebe0b EQ |
298 | # ifndef OPENSSL_NO_DEVCRYPTOENG |
299 | static CRYPTO_ONCE engine_devcrypto = CRYPTO_ONCE_STATIC_INIT; | |
300 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_devcrypto) | |
301 | { | |
5c641735 | 302 | OSSL_TRACE(INIT, "engine_load_devcrypto_int()\n"); |
2afebe0b EQ |
303 | engine_load_devcrypto_int(); |
304 | return 1; | |
305 | } | |
306 | # endif | |
469ce8ff | 307 | # if !defined(OPENSSL_NO_PADLOCKENG) |
b1f1e7ae | 308 | static CRYPTO_ONCE engine_padlock = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 309 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_padlock) |
b184e3ef | 310 | { |
5c641735 | 311 | OSSL_TRACE(INIT, "engine_load_padlock_int()\n"); |
b3599dbb | 312 | engine_load_padlock_int(); |
c2e4e5d2 | 313 | return 1; |
b184e3ef MC |
314 | } |
315 | # endif | |
316 | # if defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_NO_CAPIENG) | |
b1f1e7ae | 317 | static CRYPTO_ONCE engine_capi = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 318 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_capi) |
b184e3ef | 319 | { |
5c641735 | 320 | OSSL_TRACE(INIT, "engine_load_capi_int()\n"); |
b3599dbb | 321 | engine_load_capi_int(); |
c2e4e5d2 | 322 | return 1; |
b184e3ef MC |
323 | } |
324 | # endif | |
6cba4a66 | 325 | # if !defined(OPENSSL_NO_AFALGENG) |
a4d8bcf1 | 326 | static CRYPTO_ONCE engine_afalg = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 327 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_afalg) |
6cba4a66 | 328 | { |
5c641735 | 329 | OSSL_TRACE(INIT, "engine_load_afalg_int()\n"); |
b3599dbb | 330 | engine_load_afalg_int(); |
c2e4e5d2 | 331 | return 1; |
6cba4a66 | 332 | } |
333 | # endif | |
b184e3ef MC |
334 | # endif |
335 | #endif | |
336 | ||
f672aee4 | 337 | void OPENSSL_cleanup(void) |
b184e3ef MC |
338 | { |
339 | OPENSSL_INIT_STOP *currhandler, *lasthandler; | |
340 | ||
65a1e917 | 341 | /* |
50864bd2 MC |
342 | * At some point we should consider looking at this function with a view to |
343 | * moving most/all of this into onfree handlers in OSSL_LIB_CTX. | |
65a1e917 MC |
344 | */ |
345 | ||
deca5df2 MC |
346 | /* If we've not been inited then no need to deinit */ |
347 | if (!base_inited) | |
348 | return; | |
349 | ||
dd27f16e RS |
350 | /* Might be explicitly called and also by atexit */ |
351 | if (stopped) | |
352 | return; | |
353 | stopped = 1; | |
354 | ||
b184e3ef MC |
355 | /* |
356 | * Thread stop may not get automatically called by the thread library for | |
357 | * the very last thread in some situations, so call it directly. | |
358 | */ | |
72592b86 | 359 | OPENSSL_thread_stop(); |
b184e3ef MC |
360 | |
361 | currhandler = stop_handlers; | |
362 | while (currhandler != NULL) { | |
363 | currhandler->handler(); | |
364 | lasthandler = currhandler; | |
365 | currhandler = currhandler->next; | |
366 | OPENSSL_free(lasthandler); | |
367 | } | |
368 | stop_handlers = NULL; | |
c292b105 MC |
369 | |
370 | CRYPTO_THREAD_lock_free(init_lock); | |
adeb4bc7 | 371 | init_lock = NULL; |
c292b105 | 372 | |
b5c4dc6c TM |
373 | CRYPTO_THREAD_cleanup_local(&in_init_config_local); |
374 | ||
b184e3ef MC |
375 | /* |
376 | * We assume we are single-threaded for this function, i.e. no race | |
377 | * conditions for the various "*_inited" vars below. | |
378 | */ | |
379 | ||
e4ad0763 | 380 | #ifndef OPENSSL_NO_COMP |
309c6fba TS |
381 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_comp_zlib_cleanup()\n"); |
382 | ossl_comp_zlib_cleanup(); | |
e4ad0763 | 383 | #endif |
b184e3ef | 384 | |
ed49f43a | 385 | if (async_inited) { |
5c641735 | 386 | OSSL_TRACE(INIT, "OPENSSL_cleanup: async_deinit()\n"); |
ed49f43a MC |
387 | async_deinit(); |
388 | } | |
ed49f43a | 389 | |
58a8fc25 MC |
390 | /* |
391 | * Note that cleanup order is important: | |
1335ca4b | 392 | * - ossl_rand_cleanup_int could call an ENGINE's RAND cleanup function so |
b3599dbb | 393 | * must be called before engine_cleanup_int() |
58a8fc25 | 394 | * - ENGINEs use CRYPTO_EX_DATA and therefore, must be cleaned up |
b4250010 | 395 | * before the ex data handlers are wiped during default ossl_lib_ctx deinit. |
f148f703 | 396 | * - ossl_config_modules_free() can end up in ENGINE code so must be called |
b3599dbb | 397 | * before engine_cleanup_int() |
a535fe12 | 398 | * - ENGINEs and additional EVP algorithms might use added OIDs names so |
f148f703 | 399 | * ossl_obj_cleanup_int() must be called last |
58a8fc25 | 400 | */ |
1335ca4b SL |
401 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_rand_cleanup_int()\n"); |
402 | ossl_rand_cleanup_int(); | |
5c641735 | 403 | |
f148f703 SL |
404 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_config_modules_free()\n"); |
405 | ossl_config_modules_free(); | |
1aedc35f | 406 | |
773fd0ba | 407 | #ifndef OPENSSL_NO_ENGINE |
5c641735 | 408 | OSSL_TRACE(INIT, "OPENSSL_cleanup: engine_cleanup_int()\n"); |
b3599dbb | 409 | engine_cleanup_int(); |
773fd0ba | 410 | #endif |
a1447076 RL |
411 | |
412 | #ifndef OPENSSL_NO_DEPRECATED_3_0 | |
5c641735 | 413 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_store_cleanup_int()\n"); |
71a5516d | 414 | ossl_store_cleanup_int(); |
a1447076 | 415 | #endif |
5c641735 | 416 | |
b4250010 DMSP |
417 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_lib_ctx_default_deinit()\n"); |
418 | ossl_lib_ctx_default_deinit(); | |
5c641735 | 419 | |
6913f5fe MC |
420 | ossl_cleanup_thread(); |
421 | ||
5c641735 | 422 | OSSL_TRACE(INIT, "OPENSSL_cleanup: bio_cleanup()\n"); |
ff234405 | 423 | bio_cleanup(); |
5c641735 RL |
424 | |
425 | OSSL_TRACE(INIT, "OPENSSL_cleanup: evp_cleanup_int()\n"); | |
b3599dbb | 426 | evp_cleanup_int(); |
5c641735 | 427 | |
f148f703 SL |
428 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_obj_cleanup_int()\n"); |
429 | ossl_obj_cleanup_int(); | |
5c641735 RL |
430 | |
431 | OSSL_TRACE(INIT, "OPENSSL_cleanup: err_int()\n"); | |
ff234405 MC |
432 | err_cleanup(); |
433 | ||
5c641735 | 434 | OSSL_TRACE(INIT, "OPENSSL_cleanup: CRYPTO_secure_malloc_done()\n"); |
d7c402c4 DMSP |
435 | CRYPTO_secure_malloc_done(); |
436 | ||
7960dbec DDO |
437 | #ifndef OPENSSL_NO_CMP |
438 | OSSL_TRACE(INIT, "OPENSSL_cleanup: OSSL_CMP_log_close()\n"); | |
439 | OSSL_CMP_log_close(); | |
440 | #endif | |
441 | ||
5c641735 RL |
442 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_trace_cleanup()\n"); |
443 | ossl_trace_cleanup(); | |
444 | ||
deca5df2 | 445 | base_inited = 0; |
b184e3ef MC |
446 | } |
447 | ||
b184e3ef MC |
448 | /* |
449 | * If this function is called with a non NULL settings value then it must be | |
450 | * called prior to any threads making calls to any OpenSSL functions, | |
451 | * i.e. passing a non-null settings value is assumed to be single-threaded. | |
452 | */ | |
0fc32b07 | 453 | int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings) |
b184e3ef | 454 | { |
db6bcc81 MC |
455 | uint64_t tmp; |
456 | int aloaddone = 0; | |
457 | ||
7d69c07d TM |
458 | /* Applications depend on 0 being returned when cleanup was already done */ |
459 | if (stopped) { | |
460 | if (!(opts & OPENSSL_INIT_BASE_ONLY)) | |
461 | ERR_raise(ERR_LIB_CRYPTO, ERR_R_INIT_FAIL); | |
462 | return 0; | |
463 | } | |
464 | ||
db6bcc81 MC |
465 | /* |
466 | * We ignore failures from this function. It is probably because we are | |
467 | * on a platform that doesn't support lockless atomic loads (we may not | |
468 | * have created init_lock yet so we can't use it). This is just an | |
469 | * optimisation to skip the full checks in this function if we don't need | |
470 | * to, so we carry on regardless in the event of failure. | |
471 | * | |
472 | * There could be a race here with other threads, so that optsdone has not | |
473 | * been updated yet, even though the options have in fact been initialised. | |
474 | * This doesn't matter - it just means we will run the full function | |
475 | * unnecessarily - but all the critical code is contained in RUN_ONCE | |
476 | * functions anyway so we are safe. | |
477 | */ | |
478 | if (CRYPTO_atomic_load(&optsdone, &tmp, NULL)) { | |
479 | if ((tmp & opts) == opts) | |
480 | return 1; | |
481 | aloaddone = 1; | |
482 | } | |
483 | ||
65a1e917 | 484 | /* |
50864bd2 MC |
485 | * At some point we should look at this function with a view to moving |
486 | * most/all of this into OSSL_LIB_CTX. | |
7d69c07d | 487 | * |
df1f538f VD |
488 | * When the caller specifies OPENSSL_INIT_BASE_ONLY, that should be the |
489 | * *only* option specified. With that option we return immediately after | |
490 | * doing the requested limited initialization. Note that | |
491 | * err_shelve_state() called by us via ossl_init_load_crypto_nodelete() | |
492 | * re-enters OPENSSL_init_crypto() with OPENSSL_INIT_BASE_ONLY, but with | |
493 | * base already initialized this is a harmless NOOP. | |
494 | * | |
495 | * If we remain the only caller of err_shelve_state() the recursion should | |
496 | * perhaps be removed, but if in doubt, it can be left in place. | |
497 | */ | |
eb2b9892 BE |
498 | if (!RUN_ONCE(&base, ossl_init_base)) |
499 | return 0; | |
500 | ||
df1f538f VD |
501 | if (opts & OPENSSL_INIT_BASE_ONLY) |
502 | return 1; | |
503 | ||
db6bcc81 MC |
504 | /* |
505 | * init_lock should definitely be set up now, so we can now repeat the | |
506 | * same check from above but be sure that it will work even on platforms | |
507 | * without lockless CRYPTO_atomic_load | |
508 | */ | |
509 | if (!aloaddone) { | |
510 | if (!CRYPTO_atomic_load(&optsdone, &tmp, init_lock)) | |
511 | return 0; | |
512 | if ((tmp & opts) == opts) | |
513 | return 1; | |
514 | } | |
515 | ||
df1f538f VD |
516 | /* |
517 | * Now we don't always set up exit handlers, the INIT_BASE_ONLY calls | |
518 | * should not have the side-effect of setting up exit handlers, and | |
519 | * therefore, this code block is below the INIT_BASE_ONLY-conditioned early | |
520 | * return above. | |
521 | */ | |
8f6a5c56 MC |
522 | if ((opts & OPENSSL_INIT_NO_ATEXIT) != 0) { |
523 | if (!RUN_ONCE_ALT(®ister_atexit, ossl_init_no_register_atexit, | |
524 | ossl_init_register_atexit)) | |
525 | return 0; | |
526 | } else if (!RUN_ONCE(®ister_atexit, ossl_init_register_atexit)) { | |
527 | return 0; | |
528 | } | |
529 | ||
df1f538f | 530 | if (!RUN_ONCE(&load_crypto_nodelete, ossl_init_load_crypto_nodelete)) |
b1f1e7ae | 531 | return 0; |
b184e3ef | 532 | |
b1f1e7ae | 533 | if ((opts & OPENSSL_INIT_NO_LOAD_CRYPTO_STRINGS) |
660a1e04 MC |
534 | && !RUN_ONCE_ALT(&load_crypto_strings, |
535 | ossl_init_no_load_crypto_strings, | |
536 | ossl_init_load_crypto_strings)) | |
b1f1e7ae | 537 | return 0; |
b184e3ef | 538 | |
b1f1e7ae | 539 | if ((opts & OPENSSL_INIT_LOAD_CRYPTO_STRINGS) |
c2e4e5d2 | 540 | && !RUN_ONCE(&load_crypto_strings, ossl_init_load_crypto_strings)) |
b1f1e7ae | 541 | return 0; |
b184e3ef | 542 | |
b1f1e7ae | 543 | if ((opts & OPENSSL_INIT_NO_ADD_ALL_CIPHERS) |
660a1e04 MC |
544 | && !RUN_ONCE_ALT(&add_all_ciphers, ossl_init_no_add_all_ciphers, |
545 | ossl_init_add_all_ciphers)) | |
b1f1e7ae | 546 | return 0; |
b184e3ef | 547 | |
b1f1e7ae | 548 | if ((opts & OPENSSL_INIT_ADD_ALL_CIPHERS) |
c2e4e5d2 | 549 | && !RUN_ONCE(&add_all_ciphers, ossl_init_add_all_ciphers)) |
b1f1e7ae | 550 | return 0; |
b184e3ef | 551 | |
b1f1e7ae | 552 | if ((opts & OPENSSL_INIT_NO_ADD_ALL_DIGESTS) |
660a1e04 MC |
553 | && !RUN_ONCE_ALT(&add_all_digests, ossl_init_no_add_all_digests, |
554 | ossl_init_add_all_digests)) | |
b1f1e7ae | 555 | return 0; |
b184e3ef | 556 | |
b1f1e7ae | 557 | if ((opts & OPENSSL_INIT_ADD_ALL_DIGESTS) |
c2e4e5d2 | 558 | && !RUN_ONCE(&add_all_digests, ossl_init_add_all_digests)) |
b1f1e7ae | 559 | return 0; |
b184e3ef | 560 | |
b5319bdb | 561 | if ((opts & OPENSSL_INIT_ATFORK) |
2915fe19 RS |
562 | && !openssl_init_fork_handlers()) |
563 | return 0; | |
564 | ||
b1f1e7ae | 565 | if ((opts & OPENSSL_INIT_NO_LOAD_CONFIG) |
660a1e04 | 566 | && !RUN_ONCE_ALT(&config, ossl_init_no_config, ossl_init_config)) |
b1f1e7ae | 567 | return 0; |
b184e3ef MC |
568 | |
569 | if (opts & OPENSSL_INIT_LOAD_CONFIG) { | |
b5c4dc6c | 570 | int loading = CRYPTO_THREAD_get_local(&in_init_config_local) != NULL; |
ae031148 | 571 | |
b5c4dc6c TM |
572 | /* If called recursively from OBJ_ calls, just skip it. */ |
573 | if (!loading) { | |
574 | int ret; | |
575 | ||
576 | if (!CRYPTO_THREAD_set_local(&in_init_config_local, (void *)-1)) | |
577 | return 0; | |
578 | if (settings == NULL) { | |
579 | ret = RUN_ONCE(&config, ossl_init_config); | |
580 | } else { | |
581 | if (!CRYPTO_THREAD_write_lock(init_lock)) | |
582 | return 0; | |
583 | conf_settings = settings; | |
584 | ret = RUN_ONCE_ALT(&config, ossl_init_config_settings, | |
585 | ossl_init_config); | |
586 | conf_settings = NULL; | |
587 | CRYPTO_THREAD_unlock(init_lock); | |
588 | } | |
589 | ||
590 | if (ret <= 0) | |
cd3f8c1b | 591 | return 0; |
ae031148 | 592 | } |
b184e3ef MC |
593 | } |
594 | ||
b1f1e7ae | 595 | if ((opts & OPENSSL_INIT_ASYNC) |
c2e4e5d2 | 596 | && !RUN_ONCE(&async, ossl_init_async)) |
b1f1e7ae | 597 | return 0; |
7626fbf2 | 598 | |
b184e3ef | 599 | #ifndef OPENSSL_NO_ENGINE |
b1f1e7ae | 600 | if ((opts & OPENSSL_INIT_ENGINE_OPENSSL) |
c2e4e5d2 | 601 | && !RUN_ONCE(&engine_openssl, ossl_init_engine_openssl)) |
b1f1e7ae | 602 | return 0; |
b184e3ef | 603 | # ifndef OPENSSL_NO_RDRAND |
b1f1e7ae | 604 | if ((opts & OPENSSL_INIT_ENGINE_RDRAND) |
c2e4e5d2 | 605 | && !RUN_ONCE(&engine_rdrand, ossl_init_engine_rdrand)) |
b1f1e7ae | 606 | return 0; |
b184e3ef | 607 | # endif |
b1f1e7ae | 608 | if ((opts & OPENSSL_INIT_ENGINE_DYNAMIC) |
c2e4e5d2 | 609 | && !RUN_ONCE(&engine_dynamic, ossl_init_engine_dynamic)) |
b1f1e7ae | 610 | return 0; |
b184e3ef | 611 | # ifndef OPENSSL_NO_STATIC_ENGINE |
2afebe0b EQ |
612 | # ifndef OPENSSL_NO_DEVCRYPTOENG |
613 | if ((opts & OPENSSL_INIT_ENGINE_CRYPTODEV) | |
614 | && !RUN_ONCE(&engine_devcrypto, ossl_init_engine_devcrypto)) | |
615 | return 0; | |
616 | # endif | |
469ce8ff | 617 | # if !defined(OPENSSL_NO_PADLOCKENG) |
b1f1e7ae | 618 | if ((opts & OPENSSL_INIT_ENGINE_PADLOCK) |
c2e4e5d2 | 619 | && !RUN_ONCE(&engine_padlock, ossl_init_engine_padlock)) |
b1f1e7ae | 620 | return 0; |
b184e3ef MC |
621 | # endif |
622 | # if defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_NO_CAPIENG) | |
b1f1e7ae | 623 | if ((opts & OPENSSL_INIT_ENGINE_CAPI) |
c2e4e5d2 | 624 | && !RUN_ONCE(&engine_capi, ossl_init_engine_capi)) |
b1f1e7ae | 625 | return 0; |
b184e3ef | 626 | # endif |
6cba4a66 | 627 | # if !defined(OPENSSL_NO_AFALGENG) |
b1f1e7ae | 628 | if ((opts & OPENSSL_INIT_ENGINE_AFALG) |
c2e4e5d2 | 629 | && !RUN_ONCE(&engine_afalg, ossl_init_engine_afalg)) |
b1f1e7ae | 630 | return 0; |
6cba4a66 | 631 | # endif |
b184e3ef MC |
632 | # endif |
633 | if (opts & (OPENSSL_INIT_ENGINE_ALL_BUILTIN | |
8d00e30f | 634 | | OPENSSL_INIT_ENGINE_OPENSSL |
6cba4a66 | 635 | | OPENSSL_INIT_ENGINE_AFALG)) { |
b184e3ef MC |
636 | ENGINE_register_all_complete(); |
637 | } | |
638 | #endif | |
639 | ||
db6bcc81 MC |
640 | if (!CRYPTO_atomic_or(&optsdone, opts, &tmp, init_lock)) |
641 | return 0; | |
642 | ||
0fc32b07 | 643 | return 1; |
b184e3ef MC |
644 | } |
645 | ||
f672aee4 | 646 | int OPENSSL_atexit(void (*handler)(void)) |
b184e3ef MC |
647 | { |
648 | OPENSSL_INIT_STOP *newhand; | |
649 | ||
31b6ed76 | 650 | #if !defined(OPENSSL_USE_NODELETE)\ |
41999e7d | 651 | && !defined(OPENSSL_NO_PINSHARED) |
5836780f | 652 | { |
979575c6 P |
653 | # if defined(DSO_WIN32) && !defined(_WIN32_WCE) |
654 | HMODULE handle = NULL; | |
655 | BOOL ret; | |
5836780f MC |
656 | union { |
657 | void *sym; | |
658 | void (*func)(void); | |
659 | } handlersym; | |
660 | ||
661 | handlersym.func = handler; | |
979575c6 P |
662 | |
663 | /* | |
664 | * We don't use the DSO route for WIN32 because there is a better | |
665 | * way | |
666 | */ | |
667 | ret = GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | |
668 | | GET_MODULE_HANDLE_EX_FLAG_PIN, | |
669 | handlersym.sym, &handle); | |
670 | ||
671 | if (!ret) | |
672 | return 0; | |
31b6ed76 | 673 | # elif !defined(DSO_NONE) |
2b59d1be MC |
674 | /* |
675 | * Deliberately leak a reference to the handler. This will force the | |
676 | * library/code containing the handler to remain loaded until we run the | |
677 | * atexit handler. If -znodelete has been used then this is | |
c9a41d7d | 678 | * unnecessary. |
2b59d1be | 679 | */ |
979575c6 P |
680 | DSO *dso = NULL; |
681 | union { | |
682 | void *sym; | |
683 | void (*func)(void); | |
684 | } handlersym; | |
685 | ||
686 | handlersym.func = handler; | |
687 | ||
688 | ERR_set_mark(); | |
689 | dso = DSO_dsobyaddr(handlersym.sym, DSO_FLAG_NO_UNLOAD_ON_FREE); | |
690 | /* See same code above in ossl_init_base() for an explanation. */ | |
691 | OSSL_TRACE1(INIT, | |
692 | "atexit: obtained DSO reference? %s\n", | |
693 | (dso == NULL ? "No!" : "Yes.")); | |
694 | DSO_free(dso); | |
695 | ERR_pop_to_mark(); | |
2b59d1be | 696 | # endif |
5836780f | 697 | } |
b6d5ba1a | 698 | #endif |
5836780f | 699 | |
cdb10bae | 700 | if ((newhand = OPENSSL_malloc(sizeof(*newhand))) == NULL) { |
9311d0c4 | 701 | ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE); |
b184e3ef | 702 | return 0; |
cdb10bae | 703 | } |
b184e3ef MC |
704 | |
705 | newhand->handler = handler; | |
706 | newhand->next = stop_handlers; | |
707 | stop_handlers = newhand; | |
708 | ||
709 | return 1; | |
710 | } | |
2915fe19 | 711 |