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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 | ||
07016a8a | 13 | #include "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> |
dd27f16e RS |
35 | |
36 | static int stopped = 0; | |
db6bcc81 | 37 | static uint64_t optsdone = 0; |
b184e3ef | 38 | |
7253fd55 | 39 | typedef struct ossl_init_stop_st OPENSSL_INIT_STOP; |
b184e3ef MC |
40 | struct ossl_init_stop_st { |
41 | void (*handler)(void); | |
42 | OPENSSL_INIT_STOP *next; | |
43 | }; | |
44 | ||
45 | static OPENSSL_INIT_STOP *stop_handlers = NULL; | |
c292b105 | 46 | static CRYPTO_RWLOCK *init_lock = NULL; |
b184e3ef | 47 | |
b1f1e7ae | 48 | static CRYPTO_ONCE base = CRYPTO_ONCE_STATIC_INIT; |
b184e3ef | 49 | static int base_inited = 0; |
c2e4e5d2 | 50 | DEFINE_RUN_ONCE_STATIC(ossl_init_base) |
b184e3ef | 51 | { |
cf0932cd | 52 | /* no need to init trace */ |
5c641735 RL |
53 | |
54 | OSSL_TRACE(INIT, "ossl_init_base: setting up stop handlers\n"); | |
f7edeced RS |
55 | #ifndef OPENSSL_NO_CRYPTO_MDEBUG |
56 | ossl_malloc_setup_failures(); | |
b184e3ef | 57 | #endif |
72592b86 | 58 | |
eb2b9892 BE |
59 | if ((init_lock = CRYPTO_THREAD_lock_new()) == NULL) |
60 | goto err; | |
b184e3ef | 61 | OPENSSL_cpuid_setup(); |
8aa9cf7e | 62 | |
2be8c56a | 63 | if (!ossl_init_thread()) |
72592b86 MC |
64 | return 0; |
65 | ||
b184e3ef | 66 | base_inited = 1; |
eb2b9892 BE |
67 | return 1; |
68 | ||
69 | err: | |
5c641735 | 70 | OSSL_TRACE(INIT, "ossl_init_base failed!\n"); |
eb2b9892 BE |
71 | CRYPTO_THREAD_lock_free(init_lock); |
72 | init_lock = NULL; | |
5836780f | 73 | |
eb2b9892 BE |
74 | return 0; |
75 | } | |
76 | ||
8f6a5c56 | 77 | static CRYPTO_ONCE register_atexit = CRYPTO_ONCE_STATIC_INIT; |
de2debc5 MC |
78 | #if !defined(OPENSSL_SYS_UEFI) && defined(_WIN32) |
79 | static int win32atexit(void) | |
80 | { | |
81 | OPENSSL_cleanup(); | |
82 | return 0; | |
83 | } | |
84 | #endif | |
85 | ||
8f6a5c56 MC |
86 | DEFINE_RUN_ONCE_STATIC(ossl_init_register_atexit) |
87 | { | |
de2debc5 | 88 | #ifdef OPENSSL_INIT_DEBUG |
8f6a5c56 | 89 | fprintf(stderr, "OPENSSL_INIT: ossl_init_register_atexit()\n"); |
de2debc5 | 90 | #endif |
8f6a5c56 | 91 | #ifndef OPENSSL_SYS_UEFI |
f1ee757d | 92 | # if defined(_WIN32) && !defined(__BORLANDC__) |
de2debc5 MC |
93 | /* We use _onexit() in preference because it gets called on DLL unload */ |
94 | if (_onexit(win32atexit) == NULL) | |
95 | return 0; | |
96 | # else | |
8f6a5c56 MC |
97 | if (atexit(OPENSSL_cleanup) != 0) |
98 | return 0; | |
de2debc5 | 99 | # endif |
8f6a5c56 MC |
100 | #endif |
101 | ||
102 | return 1; | |
103 | } | |
104 | ||
105 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_register_atexit, | |
106 | ossl_init_register_atexit) | |
107 | { | |
108 | #ifdef OPENSSL_INIT_DEBUG | |
109 | fprintf(stderr, "OPENSSL_INIT: ossl_init_no_register_atexit ok!\n"); | |
110 | #endif | |
111 | /* Do nothing in this case */ | |
112 | return 1; | |
113 | } | |
114 | ||
eb2b9892 BE |
115 | static CRYPTO_ONCE load_crypto_nodelete = CRYPTO_ONCE_STATIC_INIT; |
116 | DEFINE_RUN_ONCE_STATIC(ossl_init_load_crypto_nodelete) | |
117 | { | |
5c641735 RL |
118 | OSSL_TRACE(INIT, "ossl_init_load_crypto_nodelete()\n"); |
119 | ||
31b6ed76 | 120 | #if !defined(OPENSSL_USE_NODELETE) \ |
41999e7d | 121 | && !defined(OPENSSL_NO_PINSHARED) |
9c98aa35 | 122 | # if defined(DSO_WIN32) && !defined(_WIN32_WCE) |
2b59d1be MC |
123 | { |
124 | HMODULE handle = NULL; | |
125 | BOOL ret; | |
126 | ||
127 | /* We don't use the DSO route for WIN32 because there is a better way */ | |
128 | ret = GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | |
129 | | GET_MODULE_HANDLE_EX_FLAG_PIN, | |
130 | (void *)&base_inited, &handle); | |
131 | ||
5c641735 RL |
132 | OSSL_TRACE1(INIT, |
133 | "ossl_init_load_crypto_nodelete: " | |
134 | "obtained DSO reference? %s\n", | |
135 | (ret == TRUE ? "No!" : "Yes.")); | |
2b59d1be MC |
136 | return (ret == TRUE) ? 1 : 0; |
137 | } | |
31b6ed76 | 138 | # elif !defined(DSO_NONE) |
5836780f MC |
139 | /* |
140 | * Deliberately leak a reference to ourselves. This will force the library | |
689f112d | 141 | * to remain loaded until the atexit() handler is run at process exit. |
5836780f MC |
142 | */ |
143 | { | |
eb2b9892 BE |
144 | DSO *dso; |
145 | void *err; | |
146 | ||
147 | if (!err_shelve_state(&err)) | |
148 | return 0; | |
5836780f MC |
149 | |
150 | dso = DSO_dsobyaddr(&base_inited, DSO_FLAG_NO_UNLOAD_ON_FREE); | |
4af14b7b MK |
151 | /* |
152 | * In case of No!, it is uncertain our exit()-handlers can still be | |
153 | * called. After dlclose() the whole library might have been unloaded | |
154 | * already. | |
155 | */ | |
5c641735 RL |
156 | OSSL_TRACE1(INIT, "obtained DSO reference? %s\n", |
157 | (dso == NULL ? "No!" : "Yes.")); | |
5836780f | 158 | DSO_free(dso); |
eb2b9892 | 159 | err_unshelve_state(err); |
5836780f | 160 | } |
2b59d1be | 161 | # endif |
b6d5ba1a | 162 | #endif |
5836780f | 163 | |
c2e4e5d2 | 164 | return 1; |
b184e3ef MC |
165 | } |
166 | ||
b1f1e7ae | 167 | static CRYPTO_ONCE load_crypto_strings = CRYPTO_ONCE_STATIC_INIT; |
b184e3ef | 168 | static int load_crypto_strings_inited = 0; |
c2e4e5d2 | 169 | DEFINE_RUN_ONCE_STATIC(ossl_init_load_crypto_strings) |
b184e3ef | 170 | { |
69588edb | 171 | int ret = 1; |
498abff0 MC |
172 | /* |
173 | * OPENSSL_NO_AUTOERRINIT is provided here to prevent at compile time | |
174 | * pulling in all the error strings during static linking | |
175 | */ | |
176 | #if !defined(OPENSSL_NO_ERR) && !defined(OPENSSL_NO_AUTOERRINIT) | |
b93f6c2d P |
177 | OSSL_TRACE(INIT, "ossl_err_load_crypto_strings()\n"); |
178 | ret = ossl_err_load_crypto_strings(); | |
b184e3ef | 179 | load_crypto_strings_inited = 1; |
bd91e3c8 | 180 | #endif |
69588edb | 181 | return ret; |
b184e3ef MC |
182 | } |
183 | ||
660a1e04 MC |
184 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_load_crypto_strings, |
185 | ossl_init_load_crypto_strings) | |
186 | { | |
187 | /* Do nothing in this case */ | |
188 | return 1; | |
189 | } | |
190 | ||
b1f1e7ae | 191 | static CRYPTO_ONCE add_all_ciphers = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 192 | DEFINE_RUN_ONCE_STATIC(ossl_init_add_all_ciphers) |
b184e3ef MC |
193 | { |
194 | /* | |
195 | * OPENSSL_NO_AUTOALGINIT is provided here to prevent at compile time | |
196 | * pulling in all the ciphers during static linking | |
197 | */ | |
198 | #ifndef OPENSSL_NO_AUTOALGINIT | |
5c641735 | 199 | OSSL_TRACE(INIT, "openssl_add_all_ciphers_int()\n"); |
b3599dbb | 200 | openssl_add_all_ciphers_int(); |
b184e3ef | 201 | #endif |
c2e4e5d2 | 202 | return 1; |
b184e3ef MC |
203 | } |
204 | ||
660a1e04 MC |
205 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_add_all_ciphers, |
206 | ossl_init_add_all_ciphers) | |
207 | { | |
208 | /* Do nothing */ | |
209 | return 1; | |
210 | } | |
211 | ||
b1f1e7ae | 212 | static CRYPTO_ONCE add_all_digests = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 213 | DEFINE_RUN_ONCE_STATIC(ossl_init_add_all_digests) |
b184e3ef MC |
214 | { |
215 | /* | |
216 | * OPENSSL_NO_AUTOALGINIT is provided here to prevent at compile time | |
217 | * pulling in all the ciphers during static linking | |
218 | */ | |
219 | #ifndef OPENSSL_NO_AUTOALGINIT | |
5c641735 | 220 | OSSL_TRACE(INIT, "openssl_add_all_digests()\n"); |
b3599dbb | 221 | openssl_add_all_digests_int(); |
b184e3ef | 222 | #endif |
c2e4e5d2 | 223 | return 1; |
b184e3ef MC |
224 | } |
225 | ||
660a1e04 MC |
226 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_add_all_digests, |
227 | ossl_init_add_all_digests) | |
228 | { | |
229 | /* Do nothing */ | |
230 | return 1; | |
231 | } | |
232 | ||
b1f1e7ae | 233 | static CRYPTO_ONCE config = CRYPTO_ONCE_STATIC_INIT; |
b184e3ef | 234 | static int config_inited = 0; |
df1f538f | 235 | static const OPENSSL_INIT_SETTINGS *conf_settings = NULL; |
c2e4e5d2 | 236 | DEFINE_RUN_ONCE_STATIC(ossl_init_config) |
ae031148 | 237 | { |
f148f703 | 238 | int ret = ossl_config_int(NULL); |
ae031148 MC |
239 | |
240 | config_inited = 1; | |
241 | return ret; | |
242 | } | |
243 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_config_settings, ossl_init_config) | |
b184e3ef | 244 | { |
f148f703 | 245 | int ret = ossl_config_int(conf_settings); |
ae031148 | 246 | |
b184e3ef | 247 | config_inited = 1; |
df1f538f | 248 | return ret; |
b184e3ef | 249 | } |
660a1e04 | 250 | DEFINE_RUN_ONCE_STATIC_ALT(ossl_init_no_config, ossl_init_config) |
b184e3ef | 251 | { |
f148f703 SL |
252 | OSSL_TRACE(INIT, "ossl_no_config_int()\n"); |
253 | ossl_no_config_int(); | |
b184e3ef | 254 | config_inited = 1; |
c2e4e5d2 | 255 | return 1; |
b184e3ef MC |
256 | } |
257 | ||
b1f1e7ae | 258 | static CRYPTO_ONCE async = CRYPTO_ONCE_STATIC_INIT; |
b184e3ef | 259 | static int async_inited = 0; |
c2e4e5d2 | 260 | DEFINE_RUN_ONCE_STATIC(ossl_init_async) |
b184e3ef | 261 | { |
5c641735 | 262 | OSSL_TRACE(INIT, "async_init()\n"); |
c2e4e5d2 RL |
263 | if (!async_init()) |
264 | return 0; | |
b184e3ef | 265 | async_inited = 1; |
c2e4e5d2 | 266 | return 1; |
b184e3ef MC |
267 | } |
268 | ||
269 | #ifndef OPENSSL_NO_ENGINE | |
b1f1e7ae | 270 | static CRYPTO_ONCE engine_openssl = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 271 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_openssl) |
b184e3ef | 272 | { |
5c641735 | 273 | OSSL_TRACE(INIT, "engine_load_openssl_int()\n"); |
b3599dbb | 274 | engine_load_openssl_int(); |
c2e4e5d2 | 275 | return 1; |
b184e3ef | 276 | } |
b184e3ef | 277 | # ifndef OPENSSL_NO_RDRAND |
b1f1e7ae | 278 | static CRYPTO_ONCE engine_rdrand = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 279 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_rdrand) |
b184e3ef | 280 | { |
5c641735 | 281 | OSSL_TRACE(INIT, "engine_load_rdrand_int()\n"); |
b3599dbb | 282 | engine_load_rdrand_int(); |
c2e4e5d2 | 283 | return 1; |
b184e3ef MC |
284 | } |
285 | # endif | |
b1f1e7ae | 286 | static CRYPTO_ONCE engine_dynamic = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 287 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_dynamic) |
b184e3ef | 288 | { |
5c641735 | 289 | OSSL_TRACE(INIT, "engine_load_dynamic_int()\n"); |
b3599dbb | 290 | engine_load_dynamic_int(); |
c2e4e5d2 | 291 | return 1; |
b184e3ef MC |
292 | } |
293 | # ifndef OPENSSL_NO_STATIC_ENGINE | |
2afebe0b EQ |
294 | # ifndef OPENSSL_NO_DEVCRYPTOENG |
295 | static CRYPTO_ONCE engine_devcrypto = CRYPTO_ONCE_STATIC_INIT; | |
296 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_devcrypto) | |
297 | { | |
5c641735 | 298 | OSSL_TRACE(INIT, "engine_load_devcrypto_int()\n"); |
2afebe0b EQ |
299 | engine_load_devcrypto_int(); |
300 | return 1; | |
301 | } | |
302 | # endif | |
469ce8ff | 303 | # if !defined(OPENSSL_NO_PADLOCKENG) |
b1f1e7ae | 304 | static CRYPTO_ONCE engine_padlock = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 305 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_padlock) |
b184e3ef | 306 | { |
5c641735 | 307 | OSSL_TRACE(INIT, "engine_load_padlock_int()\n"); |
b3599dbb | 308 | engine_load_padlock_int(); |
c2e4e5d2 | 309 | return 1; |
b184e3ef MC |
310 | } |
311 | # endif | |
312 | # if defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_NO_CAPIENG) | |
b1f1e7ae | 313 | static CRYPTO_ONCE engine_capi = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 314 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_capi) |
b184e3ef | 315 | { |
5c641735 | 316 | OSSL_TRACE(INIT, "engine_load_capi_int()\n"); |
b3599dbb | 317 | engine_load_capi_int(); |
c2e4e5d2 | 318 | return 1; |
b184e3ef MC |
319 | } |
320 | # endif | |
6cba4a66 | 321 | # if !defined(OPENSSL_NO_AFALGENG) |
a4d8bcf1 | 322 | static CRYPTO_ONCE engine_afalg = CRYPTO_ONCE_STATIC_INIT; |
c2e4e5d2 | 323 | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_afalg) |
6cba4a66 | 324 | { |
5c641735 | 325 | OSSL_TRACE(INIT, "engine_load_afalg_int()\n"); |
b3599dbb | 326 | engine_load_afalg_int(); |
c2e4e5d2 | 327 | return 1; |
6cba4a66 | 328 | } |
329 | # endif | |
b184e3ef MC |
330 | # endif |
331 | #endif | |
332 | ||
f672aee4 | 333 | void OPENSSL_cleanup(void) |
b184e3ef MC |
334 | { |
335 | OPENSSL_INIT_STOP *currhandler, *lasthandler; | |
336 | ||
65a1e917 | 337 | /* |
50864bd2 MC |
338 | * At some point we should consider looking at this function with a view to |
339 | * moving most/all of this into onfree handlers in OSSL_LIB_CTX. | |
65a1e917 MC |
340 | */ |
341 | ||
deca5df2 MC |
342 | /* If we've not been inited then no need to deinit */ |
343 | if (!base_inited) | |
344 | return; | |
345 | ||
dd27f16e RS |
346 | /* Might be explicitly called and also by atexit */ |
347 | if (stopped) | |
348 | return; | |
349 | stopped = 1; | |
350 | ||
b184e3ef MC |
351 | /* |
352 | * Thread stop may not get automatically called by the thread library for | |
353 | * the very last thread in some situations, so call it directly. | |
354 | */ | |
72592b86 | 355 | OPENSSL_thread_stop(); |
b184e3ef MC |
356 | |
357 | currhandler = stop_handlers; | |
358 | while (currhandler != NULL) { | |
359 | currhandler->handler(); | |
360 | lasthandler = currhandler; | |
361 | currhandler = currhandler->next; | |
362 | OPENSSL_free(lasthandler); | |
363 | } | |
364 | stop_handlers = NULL; | |
c292b105 MC |
365 | |
366 | CRYPTO_THREAD_lock_free(init_lock); | |
adeb4bc7 | 367 | init_lock = NULL; |
c292b105 | 368 | |
b184e3ef MC |
369 | /* |
370 | * We assume we are single-threaded for this function, i.e. no race | |
371 | * conditions for the various "*_inited" vars below. | |
372 | */ | |
373 | ||
e4ad0763 | 374 | #ifndef OPENSSL_NO_COMP |
309c6fba TS |
375 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_comp_zlib_cleanup()\n"); |
376 | ossl_comp_zlib_cleanup(); | |
e4ad0763 | 377 | #endif |
b184e3ef | 378 | |
ed49f43a | 379 | if (async_inited) { |
5c641735 | 380 | OSSL_TRACE(INIT, "OPENSSL_cleanup: async_deinit()\n"); |
ed49f43a MC |
381 | async_deinit(); |
382 | } | |
ed49f43a | 383 | |
b184e3ef | 384 | if (load_crypto_strings_inited) { |
5c641735 | 385 | OSSL_TRACE(INIT, "OPENSSL_cleanup: err_free_strings_int()\n"); |
b3599dbb | 386 | err_free_strings_int(); |
b184e3ef MC |
387 | } |
388 | ||
58a8fc25 MC |
389 | /* |
390 | * Note that cleanup order is important: | |
1335ca4b | 391 | * - ossl_rand_cleanup_int could call an ENGINE's RAND cleanup function so |
b3599dbb | 392 | * must be called before engine_cleanup_int() |
58a8fc25 | 393 | * - ENGINEs use CRYPTO_EX_DATA and therefore, must be cleaned up |
b4250010 | 394 | * before the ex data handlers are wiped during default ossl_lib_ctx deinit. |
f148f703 | 395 | * - ossl_config_modules_free() can end up in ENGINE code so must be called |
b3599dbb | 396 | * before engine_cleanup_int() |
a535fe12 | 397 | * - ENGINEs and additional EVP algorithms might use added OIDs names so |
f148f703 | 398 | * ossl_obj_cleanup_int() must be called last |
58a8fc25 | 399 | */ |
1335ca4b SL |
400 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_rand_cleanup_int()\n"); |
401 | ossl_rand_cleanup_int(); | |
5c641735 | 402 | |
f148f703 SL |
403 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_config_modules_free()\n"); |
404 | ossl_config_modules_free(); | |
1aedc35f | 405 | |
773fd0ba | 406 | #ifndef OPENSSL_NO_ENGINE |
5c641735 | 407 | OSSL_TRACE(INIT, "OPENSSL_cleanup: engine_cleanup_int()\n"); |
b3599dbb | 408 | engine_cleanup_int(); |
773fd0ba | 409 | #endif |
a1447076 RL |
410 | |
411 | #ifndef OPENSSL_NO_DEPRECATED_3_0 | |
5c641735 | 412 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_store_cleanup_int()\n"); |
71a5516d | 413 | ossl_store_cleanup_int(); |
a1447076 | 414 | #endif |
5c641735 | 415 | |
b4250010 DMSP |
416 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_lib_ctx_default_deinit()\n"); |
417 | ossl_lib_ctx_default_deinit(); | |
5c641735 | 418 | |
6913f5fe MC |
419 | ossl_cleanup_thread(); |
420 | ||
5c641735 | 421 | OSSL_TRACE(INIT, "OPENSSL_cleanup: bio_cleanup()\n"); |
ff234405 | 422 | bio_cleanup(); |
5c641735 RL |
423 | |
424 | OSSL_TRACE(INIT, "OPENSSL_cleanup: evp_cleanup_int()\n"); | |
b3599dbb | 425 | evp_cleanup_int(); |
5c641735 | 426 | |
f148f703 SL |
427 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_obj_cleanup_int()\n"); |
428 | ossl_obj_cleanup_int(); | |
5c641735 RL |
429 | |
430 | OSSL_TRACE(INIT, "OPENSSL_cleanup: err_int()\n"); | |
ff234405 MC |
431 | err_cleanup(); |
432 | ||
5c641735 | 433 | OSSL_TRACE(INIT, "OPENSSL_cleanup: CRYPTO_secure_malloc_done()\n"); |
d7c402c4 DMSP |
434 | CRYPTO_secure_malloc_done(); |
435 | ||
7960dbec DDO |
436 | #ifndef OPENSSL_NO_CMP |
437 | OSSL_TRACE(INIT, "OPENSSL_cleanup: OSSL_CMP_log_close()\n"); | |
438 | OSSL_CMP_log_close(); | |
439 | #endif | |
440 | ||
5c641735 RL |
441 | OSSL_TRACE(INIT, "OPENSSL_cleanup: ossl_trace_cleanup()\n"); |
442 | ossl_trace_cleanup(); | |
443 | ||
deca5df2 | 444 | base_inited = 0; |
b184e3ef MC |
445 | } |
446 | ||
b184e3ef MC |
447 | /* |
448 | * If this function is called with a non NULL settings value then it must be | |
449 | * called prior to any threads making calls to any OpenSSL functions, | |
450 | * i.e. passing a non-null settings value is assumed to be single-threaded. | |
451 | */ | |
0fc32b07 | 452 | int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings) |
b184e3ef | 453 | { |
db6bcc81 MC |
454 | uint64_t tmp; |
455 | int aloaddone = 0; | |
456 | ||
457 | /* | |
458 | * We ignore failures from this function. It is probably because we are | |
459 | * on a platform that doesn't support lockless atomic loads (we may not | |
460 | * have created init_lock yet so we can't use it). This is just an | |
461 | * optimisation to skip the full checks in this function if we don't need | |
462 | * to, so we carry on regardless in the event of failure. | |
463 | * | |
464 | * There could be a race here with other threads, so that optsdone has not | |
465 | * been updated yet, even though the options have in fact been initialised. | |
466 | * This doesn't matter - it just means we will run the full function | |
467 | * unnecessarily - but all the critical code is contained in RUN_ONCE | |
468 | * functions anyway so we are safe. | |
469 | */ | |
470 | if (CRYPTO_atomic_load(&optsdone, &tmp, NULL)) { | |
471 | if ((tmp & opts) == opts) | |
472 | return 1; | |
473 | aloaddone = 1; | |
474 | } | |
475 | ||
65a1e917 | 476 | /* |
50864bd2 MC |
477 | * At some point we should look at this function with a view to moving |
478 | * most/all of this into OSSL_LIB_CTX. | |
65a1e917 MC |
479 | */ |
480 | ||
302f7588 | 481 | if (stopped) { |
eb2b9892 | 482 | if (!(opts & OPENSSL_INIT_BASE_ONLY)) |
9311d0c4 | 483 | ERR_raise(ERR_LIB_CRYPTO, ERR_R_INIT_FAIL); |
0fc32b07 | 484 | return 0; |
302f7588 | 485 | } |
dd27f16e | 486 | |
df1f538f VD |
487 | /* |
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) { | |
b1f1e7ae | 570 | int ret; |
ae031148 MC |
571 | |
572 | if (settings == NULL) { | |
573 | ret = RUN_ONCE(&config, ossl_init_config); | |
574 | } else { | |
cd3f8c1b RS |
575 | if (!CRYPTO_THREAD_write_lock(init_lock)) |
576 | return 0; | |
ae031148 MC |
577 | conf_settings = settings; |
578 | ret = RUN_ONCE_ALT(&config, ossl_init_config_settings, | |
579 | ossl_init_config); | |
580 | conf_settings = NULL; | |
581 | CRYPTO_THREAD_unlock(init_lock); | |
582 | } | |
583 | ||
e3af453b | 584 | if (ret <= 0) |
b1f1e7ae | 585 | return 0; |
b184e3ef MC |
586 | } |
587 | ||
b1f1e7ae | 588 | if ((opts & OPENSSL_INIT_ASYNC) |
c2e4e5d2 | 589 | && !RUN_ONCE(&async, ossl_init_async)) |
b1f1e7ae | 590 | return 0; |
7626fbf2 | 591 | |
b184e3ef | 592 | #ifndef OPENSSL_NO_ENGINE |
b1f1e7ae | 593 | if ((opts & OPENSSL_INIT_ENGINE_OPENSSL) |
c2e4e5d2 | 594 | && !RUN_ONCE(&engine_openssl, ossl_init_engine_openssl)) |
b1f1e7ae | 595 | return 0; |
b184e3ef | 596 | # ifndef OPENSSL_NO_RDRAND |
b1f1e7ae | 597 | if ((opts & OPENSSL_INIT_ENGINE_RDRAND) |
c2e4e5d2 | 598 | && !RUN_ONCE(&engine_rdrand, ossl_init_engine_rdrand)) |
b1f1e7ae | 599 | return 0; |
b184e3ef | 600 | # endif |
b1f1e7ae | 601 | if ((opts & OPENSSL_INIT_ENGINE_DYNAMIC) |
c2e4e5d2 | 602 | && !RUN_ONCE(&engine_dynamic, ossl_init_engine_dynamic)) |
b1f1e7ae | 603 | return 0; |
b184e3ef | 604 | # ifndef OPENSSL_NO_STATIC_ENGINE |
2afebe0b EQ |
605 | # ifndef OPENSSL_NO_DEVCRYPTOENG |
606 | if ((opts & OPENSSL_INIT_ENGINE_CRYPTODEV) | |
607 | && !RUN_ONCE(&engine_devcrypto, ossl_init_engine_devcrypto)) | |
608 | return 0; | |
609 | # endif | |
469ce8ff | 610 | # if !defined(OPENSSL_NO_PADLOCKENG) |
b1f1e7ae | 611 | if ((opts & OPENSSL_INIT_ENGINE_PADLOCK) |
c2e4e5d2 | 612 | && !RUN_ONCE(&engine_padlock, ossl_init_engine_padlock)) |
b1f1e7ae | 613 | return 0; |
b184e3ef MC |
614 | # endif |
615 | # if defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_NO_CAPIENG) | |
b1f1e7ae | 616 | if ((opts & OPENSSL_INIT_ENGINE_CAPI) |
c2e4e5d2 | 617 | && !RUN_ONCE(&engine_capi, ossl_init_engine_capi)) |
b1f1e7ae | 618 | return 0; |
b184e3ef | 619 | # endif |
6cba4a66 | 620 | # if !defined(OPENSSL_NO_AFALGENG) |
b1f1e7ae | 621 | if ((opts & OPENSSL_INIT_ENGINE_AFALG) |
c2e4e5d2 | 622 | && !RUN_ONCE(&engine_afalg, ossl_init_engine_afalg)) |
b1f1e7ae | 623 | return 0; |
6cba4a66 | 624 | # endif |
b184e3ef MC |
625 | # endif |
626 | if (opts & (OPENSSL_INIT_ENGINE_ALL_BUILTIN | |
8d00e30f | 627 | | OPENSSL_INIT_ENGINE_OPENSSL |
6cba4a66 | 628 | | OPENSSL_INIT_ENGINE_AFALG)) { |
b184e3ef MC |
629 | ENGINE_register_all_complete(); |
630 | } | |
631 | #endif | |
632 | ||
db6bcc81 MC |
633 | if (!CRYPTO_atomic_or(&optsdone, opts, &tmp, init_lock)) |
634 | return 0; | |
635 | ||
0fc32b07 | 636 | return 1; |
b184e3ef MC |
637 | } |
638 | ||
f672aee4 | 639 | int OPENSSL_atexit(void (*handler)(void)) |
b184e3ef MC |
640 | { |
641 | OPENSSL_INIT_STOP *newhand; | |
642 | ||
31b6ed76 | 643 | #if !defined(OPENSSL_USE_NODELETE)\ |
41999e7d | 644 | && !defined(OPENSSL_NO_PINSHARED) |
5836780f | 645 | { |
5836780f MC |
646 | union { |
647 | void *sym; | |
648 | void (*func)(void); | |
649 | } handlersym; | |
650 | ||
651 | handlersym.func = handler; | |
9c98aa35 | 652 | # if defined(DSO_WIN32) && !defined(_WIN32_WCE) |
2b59d1be MC |
653 | { |
654 | HMODULE handle = NULL; | |
655 | BOOL ret; | |
5836780f | 656 | |
2b59d1be MC |
657 | /* |
658 | * We don't use the DSO route for WIN32 because there is a better | |
659 | * way | |
660 | */ | |
661 | ret = GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | |
662 | | GET_MODULE_HANDLE_EX_FLAG_PIN, | |
663 | handlersym.sym, &handle); | |
664 | ||
665 | if (!ret) | |
666 | return 0; | |
667 | } | |
31b6ed76 | 668 | # elif !defined(DSO_NONE) |
2b59d1be MC |
669 | /* |
670 | * Deliberately leak a reference to the handler. This will force the | |
671 | * library/code containing the handler to remain loaded until we run the | |
672 | * atexit handler. If -znodelete has been used then this is | |
c9a41d7d | 673 | * unnecessary. |
2b59d1be MC |
674 | */ |
675 | { | |
676 | DSO *dso = NULL; | |
677 | ||
689f112d | 678 | ERR_set_mark(); |
2b59d1be | 679 | dso = DSO_dsobyaddr(handlersym.sym, DSO_FLAG_NO_UNLOAD_ON_FREE); |
4af14b7b | 680 | /* See same code above in ossl_init_base() for an explanation. */ |
5c641735 RL |
681 | OSSL_TRACE1(INIT, |
682 | "atexit: obtained DSO reference? %s\n", | |
683 | (dso == NULL ? "No!" : "Yes.")); | |
2b59d1be | 684 | DSO_free(dso); |
689f112d | 685 | ERR_pop_to_mark(); |
2b59d1be MC |
686 | } |
687 | # endif | |
5836780f | 688 | } |
b6d5ba1a | 689 | #endif |
5836780f | 690 | |
cdb10bae | 691 | if ((newhand = OPENSSL_malloc(sizeof(*newhand))) == NULL) { |
9311d0c4 | 692 | ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE); |
b184e3ef | 693 | return 0; |
cdb10bae | 694 | } |
b184e3ef MC |
695 | |
696 | newhand->handler = handler; | |
697 | newhand->next = stop_handlers; | |
698 | stop_handlers = newhand; | |
699 | ||
700 | return 1; | |
701 | } | |
2915fe19 | 702 |