summaryrefslogtreecommitdiffstats
path: root/crypto/init.c
blob: d9f40001a2491a798d0304bb258377e1df4d80db (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
/*
 * Written by Matt Caswell for the OpenSSL project.
 */
/* ====================================================================
 * Copyright (c) 2016 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#include <internal/threads.h>
#include <internal/cryptlib_int.h>
#include <openssl/err.h>
#include <internal/rand.h>
#include <internal/bio.h>
#include <openssl/evp.h>
#include <internal/evp_int.h>
#include <internal/conf.h>
#include <internal/async.h>
#include <internal/engine.h>
#include <internal/comp.h>
#include <internal/err.h>
#include <internal/objects.h>
#include <stdlib.h>
#include <assert.h>

static int stopped = 0;

static void ossl_init_thread_stop(struct thread_local_inits_st *locals);

static CRYPTO_THREAD_LOCAL threadstopkey;

static void ossl_init_thread_stop_wrap(void *local)
{
    ossl_init_thread_stop((struct thread_local_inits_st *)local);
}

static struct thread_local_inits_st *ossl_init_get_thread_local(int alloc)
{
    struct thread_local_inits_st *local =
        CRYPTO_THREAD_get_local(&threadstopkey);

    if (local == NULL && alloc) {
        local = OPENSSL_zalloc(sizeof *local);
        CRYPTO_THREAD_set_local(&threadstopkey, local);
    }
    if (!alloc) {
        CRYPTO_THREAD_set_local(&threadstopkey, NULL);
    }

    return local;
}

typedef struct ossl_init_stop_st OPENSSL_INIT_STOP;
struct ossl_init_stop_st {
    void (*handler)(void);
    OPENSSL_INIT_STOP *next;
};

static OPENSSL_INIT_STOP *stop_handlers = NULL;
static CRYPTO_RWLOCK *init_lock = NULL;

static CRYPTO_ONCE base = CRYPTO_ONCE_STATIC_INIT;
static int base_inited = 0;
static void ossl_init_base(void)
{
#ifdef OPENSSL_INIT_DEBUG
    fprintf(stderr, "OPENSSL_INIT: ossl_init_base: Setting up stop handlers\n");
#endif
    /*
     * We use a dummy thread local key here. We use the destructor to detect
     * when the thread is going to stop (where that feature is available)
     */
    CRYPTO_THREAD_init_local(&threadstopkey, ossl_init_thread_stop_wrap);
#ifndef OPENSSL_SYS_UEFI
    atexit(OPENSSL_cleanup);
#endif
    init_lock = CRYPTO_THREAD_lock_new();
    OPENSSL_cpuid_setup();
    base_inited = 1;
}

static CRYPTO_ONCE load_crypto_strings = CRYPTO_ONCE_STATIC_INIT;
static int load_crypto_strings_inited = 0;
static void ossl_init_no_load_crypto_strings(void)
{
    /* Do nothing in this case */
    return;
}

static void ossl_init_load_crypto_strings(void)
{
    /*
     * OPENSSL_NO_AUTOERRINIT is provided here to prevent at compile time
     * pulling in all the error strings during static linking
     */
#if !defined(OPENSSL_NO_ERR) && !defined(OPENSSL_NO_AUTOERRINIT)
# ifdef OPENSSL_INIT_DEBUG
    fprintf(stderr, "OPENSSL_INIT: ossl_init_load_crypto_strings: "
                    "err_load_crypto_strings_int()\n");
# endif
    err_load_crypto_strings_int();
#endif
    load_crypto_strings_inited = 1;
}

static CRYPTO_ONCE add_all_ciphers = CRYPTO_ONCE_STATIC_INIT;
static void ossl_init_add_all_ciphers(void)
{
    /*
     * OPENSSL_NO_AUTOALGINIT is provided here to prevent at compile time
     * pulling in all the ciphers during static linking
     */
#ifndef OPENSSL_NO_AUTOALGINIT
# ifdef OPENSSL_INIT_DEBUG
    fprintf(stderr, "OPENSSL_INIT: ossl_init_add_all_ciphers: "
                    "openssl_add_all_ciphers_int()\n");
# endif
    openssl_add_all_ciphers_int();
# ifndef OPENSSL_NO_ENGINE
#  if defined(__OpenBSD__) || defined(__FreeBSD__) || defined(HAVE_CRYPTODEV)
    ENGINE_setup_bsd_cryptodev();
#  endif
# endif
#endif
}

static CRYPTO_ONCE add_all_digests = CRYPTO_ONCE_STATIC_INIT;
static void ossl_init_add_all_digests(void)
{
    /*
     * OPENSSL_NO_AUTOALGINIT is provided here to prevent at compile time
     * pulling in all the ciphers during static linking
     */
#ifndef OPENSSL_NO_AUTOALGINIT
# ifdef OPENSSL_INIT_DEBUG
    fprintf(stderr, "OPENSSL_INIT: ossl_init_add_all_digests: "
                    "openssl_add_all_digests()\n");
# endif
    openssl_add_all_digests_int();
# ifndef OPENSSL_NO_ENGINE
#  if defined(__OpenBSD__) || defined(__FreeBSD__) || defined(HAVE_CRYPTODEV)
    ENGINE_setup_bsd_cryptodev();
#  endif
# endif
#endif
}

static void ossl_init_no_add_algs(void)
{
    /* Do nothing */
    return;
}

static CRYPTO_ONCE config = CRYPTO_ONCE_STATIC_INIT;
static int config_inited = 0;
static const char *config_filename;
static void ossl_init_config(void)
{
#ifdef OPENSSL_INIT_DEBUG
    fprintf(stderr,
            "OPENSSL_INIT: ossl_init_config: openssl_config(%s)\n",
            config_filename==NULL?"NULL":config_filename);
#endif
    openssl_config_int(config_filename);
    config_inited = 1;
}
static void ossl_init_no_config(void)
{
#ifdef OPENSSL_INIT_DEBUG
    fprintf(stderr,
            "OPENSSL_INIT: ossl_init_config: openssl_no_config_int()\n");
#endif
    openssl_no_config_int();
    config_inited = 1;
}

static CRYPTO_ONCE async = CRYPTO_ONCE_STATIC_INIT;
static int async_inited = 0;
static void ossl_init_async(void)
{
#ifdef OPENSSL_INIT_DEBUG
    fprintf(stderr, "OPENSSL_INIT: ossl_init_async: async_init()\n");
#endif
    async_init();
    async_inited = 1;
}

#ifndef OPENSSL_NO_ENGINE
static CRYPTO_ONCE engine_openssl = CRYPTO_ONCE_STATIC_INIT;
static void ossl_init_engine_openssl(void)
{
# ifdef OPENSSL_INIT_DEBUG
    fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_openssl: "
                    "engine_load_openssl_int()\n");
# endif
    engine_load_openssl_int();
}
# if !defined(OPENSSL_NO_HW) && \
    (defined(__OpenBSD__) || defined(__FreeBSD__) || defined(HAVE_CRYPTODEV))
static CRYPTO_ONCE engine_cryptodev = CRYPTO_ONCE_STATIC_INIT;
static void ossl_init_engine_cryptodev(void)
{
#  ifdef OPENSSL_INIT_DEBUG
    fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_cryptodev: "
                    "engine_load_cryptodev_int()\n");
#  endif
    engine_load_cryptodev_int();
}
# endif

# ifndef OPENSSL_NO_RDRAND
static CRYPTO_ONCE engine_rdrand = CRYPTO_ONCE_STATIC_INIT;
static void ossl_init_engine_rdrand(void)
{
#  ifdef OPENSSL_INIT_DEBUG
    fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_rdrand: "
                    "engine_load_rdrand_int()\n");
#  endif
    engine_load_rdrand_int();
}
# endif
static CRYPTO_ONCE engine_dynamic = CRYPTO_ONCE_STATIC_INIT;
static void ossl_init_engine_dynamic(void)
{
# ifdef OPENSSL_INIT_DEBUG
    fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_dynamic: "
                    "engine_load_dynamic_int()\n");
# endif
    engine_load_dynamic_int();
}
# ifndef OPENSSL_NO_STATIC_ENGINE
#  if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_HW_PADLOCK)
static CRYPTO_ONCE engine_padlock = CRYPTO_ONCE_STATIC_INIT;
static void ossl_init_engine_padlock(void)
{
#   ifdef OPENSSL_INIT_DEBUG
    fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_padlock: "
                    "engine_load_padlock_int()\n");
#   endif
    engine_load_padlock_int();
}
#  endif
#  if defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_NO_CAPIENG)
static CRYPTO_ONCE engine_capi = CRYPTO_ONCE_STATIC_INIT;
static void ossl_init_engine_capi(void)
{
#   ifdef OPENSSL_INIT_DEBUG
    fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_capi: "
                    "engine_load_capi_int()\n");
#   endif
    engine_load_capi_int();
}
#  endif
static CRYPTO_ONCE engine_dasync = CRYPTO_ONCE_STATIC_INIT;
static void ossl_init_engine_dasync(void)
{
# ifdef OPENSSL_INIT_DEBUG
    fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_dasync: "
                    "engine_load_dasync_int()\n");
# endif
    engine_load_dasync_int();
}
#  if !defined(OPENSSL_NO_AFALGENG)
static CRYPTO_ONCE engine_afalg = CRYPTO_ONCE_STATIC_INIT;
static void ossl_init_engine_afalg(void)
{
#   ifdef OPENSSL_INIT_DEBUG
    fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_afalg: "
                    "engine_load_afalg_int()\n");
#   endif
    engine_load_afalg_int();
}
#  endif
# endif
#endif

#ifndef OPENSSL_NO_COMP
static CRYPTO_ONCE zlib = CRYPTO_ONCE_STATIC_INIT;

static int zlib_inited = 0;
static void ossl_init_zlib(void)
{
    /* Do nothing - we need to know about this for the later cleanup */
    zlib_inited = 1;
}
#endif

static void ossl_init_thread_stop(struct thread_local_inits_st *locals)
{
    /* Can't do much about this */
    if (locals == NULL)
        return;

    if (locals->async) {
#ifdef OPENSSL_INIT_DEBUG
        fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_stop: "
                        "ASYNC_cleanup_thread()\n");
#endif
        ASYNC_cleanup_thread();
    }

    if (locals->err_state) {
#ifdef OPENSSL_INIT_DEBUG
        fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_stop: "
                        "ERR_remove_thread_state()\n");
#endif
        ERR_remove_thread_state();
    }

    OPENSSL_free(locals);
}

void OPENSSL_thread_stop(void)
{
    ossl_init_thread_stop(
        (struct thread_local_inits_st *)ossl_init_get_thread_local(0));
}

int ossl_init_thread_start(uint64_t opts)
{
    struct thread_local_inits_st *locals = ossl_init_get_thread_local(1);

    if (locals == NULL)
        return 0;

    if (opts & OPENSSL_INIT_THREAD_ASYNC) {
#ifdef OPENSSL_INIT_DEBUG
        fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_start: "
                        "marking thread for async\n");
#endif
        locals->async = 1;
    }

    if (opts & OPENSSL_INIT_THREAD_ERR_STATE) {
#ifdef OPENSSL_INIT_DEBUG
        fprintf(stderr, "OPENSSL_INIT: ossl_init_thread_start: "
                        "marking thread for err_state\n");
#endif
        locals->err_state = 1;
    }

    return 1;
}

void OPENSSL_cleanup(void)
{
    OPENSSL_INIT_STOP *currhandler, *lasthandler;

    /* If we've not been inited then no need to deinit */
    if (!base_inited)
        return;

    /* Might be explicitly called and also by atexit */
    if (stopped)
        return;
    stopped = 1;

    /*
     * Thread stop may not get automatically called by the thread library for
     * the very last thread in some situations, so call it directly.
     */
    ossl_init_thread_stop(ossl_init_get_thread_local(0));

    currhandler = stop_handlers;
    while (currhandler != NULL) {
        currhandler->handler();
        lasthandler = currhandler;
        currhandler = currhandler->next;
        OPENSSL_free(lasthandler);
    }
    stop_handlers = NULL;

    CRYPTO_THREAD_lock_free(init_lock);

    /*
     * We assume we are single-threaded for this function, i.e. no race
     * conditions for the various "*_inited" vars below.
     */

#ifndef OPENSSL_NO_COMP
    if (zlib_inited) {
#ifdef OPENSSL_INIT_DEBUG
        fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
                        "comp_zlib_cleanup_int()\n");
#endif
        comp_zlib_cleanup_int();
    }
#endif

    if (async_inited) {
# ifdef OPENSSL_INIT_DEBUG
        fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
                        "async_deinit()\n");
# endif
        async_deinit();
    }

    if (load_crypto_strings_inited) {
#ifdef OPENSSL_INIT_DEBUG
        fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
                        "err_free_strings_int()\n");
#endif
        err_free_strings_int();
    }

    CRYPTO_THREAD_cleanup_local(&threadstopkey);

#ifdef OPENSSL_INIT_DEBUG
    fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
                    "rand_cleanup_int()\n");
    fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
                    "conf_modules_free_int()\n");
#ifndef OPENSSL_NO_ENGINE
    fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
                    "engine_cleanup_int()\n");
#endif
    fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
                    "crypto_cleanup_all_ex_data_int()\n");
    fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
                    "bio_sock_cleanup_int()\n");
    fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
                    "evp_cleanup_int()\n");
    fprintf(stderr, "OPENSSL_INIT: OPENSSL_cleanup: "
                    "obj_cleanup_int()\n");
#endif
    /*
     * Note that cleanup order is important:
     * - rand_cleanup_int could call an ENINGE's RAND cleanup function so
     * must be called before engine_cleanup_int()
     * - ENGINEs use CRYPTO_EX_DATA and therefore, must be cleaned up
     * before the ex data handlers are wiped in CRYPTO_cleanup_all_ex_data().
     * - conf_modules_free_int() can end up in ENGINE code so must be called
     * before engine_cleanup_int()
     */
    rand_cleanup_int();
    conf_modules_free_int();
#ifndef OPENSSL_NO_ENGINE
    engine_cleanup_int();
#endif
    crypto_cleanup_all_ex_data_int();
#ifndef OPENSSL_NO_SOCK
    bio_sock_cleanup_int();
#endif
    evp_cleanup_int();
    obj_cleanup_int();
    base_inited = 0;
}

/*
 * If this function is called with a non NULL settings value then it must be
 * called prior to any threads making calls to any OpenSSL functions,
 * i.e. passing a non-null settings value is assumed to be single-threaded.
 */
int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings)
{
    static int stoperrset = 0;

    if (stopped) {
        if (!stoperrset) {
            /*
             * We only ever set this once to avoid getting into an infinite
             * loop where the error system keeps trying to init and fails so
             * sets an error etc
             */
            stoperrset = 1;
            CRYPTOerr(CRYPTO_F_OPENSSL_INIT_CRYPTO, ERR_R_INIT_FAIL);
        }
        return 0;
    }

    if (!CRYPTO_THREAD_run_once(&base, ossl_init_base))
        return 0;

    if ((opts & OPENSSL_INIT_NO_LOAD_CRYPTO_STRINGS)
            && !CRYPTO_THREAD_run_once(&load_crypto_strings,
                                       ossl_init_no_load_crypto_strings))
        return 0;

    if ((opts & OPENSSL_INIT_LOAD_CRYPTO_STRINGS)
            && !CRYPTO_THREAD_run_once(&load_crypto_strings,
                                       ossl_init_load_crypto_strings))
        return 0;

    if ((opts & OPENSSL_INIT_NO_ADD_ALL_CIPHERS)
            && !CRYPTO_THREAD_run_once(&add_all_ciphers, ossl_init_no_add_algs))
        return 0;

    if ((opts & OPENSSL_INIT_ADD_ALL_CIPHERS)
            && !CRYPTO_THREAD_run_once(&add_all_ciphers,
                                       ossl_init_add_all_ciphers))
        return 0;

    if ((opts & OPENSSL_INIT_NO_ADD_ALL_DIGESTS)
            && !CRYPTO_THREAD_run_once(&add_all_digests, ossl_init_no_add_algs))
        return 0;

    if ((opts & OPENSSL_INIT_ADD_ALL_DIGESTS)
            && !CRYPTO_THREAD_run_once(&add_all_digests,
                                       ossl_init_add_all_digests))
        return 0;

    if ((opts & OPENSSL_INIT_NO_LOAD_CONFIG)
            && !CRYPTO_THREAD_run_once(&config, ossl_init_no_config))
        return 0;

    if (opts & OPENSSL_INIT_LOAD_CONFIG) {
        int ret;
        CRYPTO_THREAD_write_lock(init_lock);
        config_filename = (settings == NULL) ? NULL : settings->config_name;
        ret = CRYPTO_THREAD_run_once(&config, ossl_init_config);
        CRYPTO_THREAD_unlock(init_lock);
        if (!ret)
            return 0;
    }

    if ((opts & OPENSSL_INIT_ASYNC)
            && !CRYPTO_THREAD_run_once(&async, ossl_init_async))
        return 0;

#ifndef OPENSSL_NO_ENGINE
    if ((opts & OPENSSL_INIT_ENGINE_OPENSSL)
            && !CRYPTO_THREAD_run_once(&engine_openssl,
                                       ossl_init_engine_openssl))
        return 0;
# if !defined(OPENSSL_NO_HW) && \
    (defined(__OpenBSD__) || defined(__FreeBSD__) || defined(HAVE_CRYPTODEV))
    if ((opts & OPENSSL_INIT_ENGINE_CRYPTODEV)
            && !CRYPTO_THREAD_run_once(&engine_cryptodev,
                                       ossl_init_engine_cryptodev))
        return 0;
# endif
# ifndef OPENSSL_NO_RDRAND
    if ((opts & OPENSSL_INIT_ENGINE_RDRAND)
            && !CRYPTO_THREAD_run_once(&engine_rdrand, ossl_init_engine_rdrand))
        return 0;
# endif
    if ((opts & OPENSSL_INIT_ENGINE_DYNAMIC)
            && !CRYPTO_THREAD_run_once(&engine_dynamic,
                                       ossl_init_engine_dynamic))
        return 0;
# ifndef OPENSSL_NO_STATIC_ENGINE
#  if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_HW_PADLOCK)
    if ((opts & OPENSSL_INIT_ENGINE_PADLOCK)
            && !CRYPTO_THREAD_run_once(&engine_padlock,
                                       ossl_init_engine_padlock))
        return 0;
#  endif
#  if defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_NO_CAPIENG)
    if ((opts & OPENSSL_INIT_ENGINE_CAPI)
            && !CRYPTO_THREAD_run_once(&engine_capi, ossl_init_engine_capi))
        return 0;
#  endif
    if ((opts & OPENSSL_INIT_ENGINE_DASYNC)
            && !CRYPTO_THREAD_run_once(&engine_dasync, ossl_init_engine_dasync))
        return 0;
#  if !defined(OPENSSL_NO_AFALGENG)
    if ((opts & OPENSSL_INIT_ENGINE_AFALG)
            && !CRYPTO_THREAD_run_once(&engine_afalg, ossl_init_engine_afalg))
        return 0;
#  endif
# endif
    if (opts & (OPENSSL_INIT_ENGINE_ALL_BUILTIN
                | OPENSSL_INIT_ENGINE_DASYNC | OPENSSL_INIT_ENGINE_OPENSSL
                | OPENSSL_INIT_ENGINE_AFALG)) {
        ENGINE_register_all_complete();
    }
#endif

#ifndef OPENSSL_NO_COMP
    if ((opts & OPENSSL_INIT_ZLIB)
            && !CRYPTO_THREAD_run_once(&zlib, ossl_init_zlib))
        return 0;
#endif

    return 1;
}

int OPENSSL_atexit(void (*handler)(void))
{
    OPENSSL_INIT_STOP *newhand;

    newhand = OPENSSL_malloc(sizeof(*newhand));
    if (newhand == NULL)
        return 0;

    newhand->handler = handler;
    newhand->next = stop_handlers;
    stop_handlers = newhand;

    return 1;
}