xref: /freebsd/crypto/openssl/test/threadstest.c (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
1 /*
2  * Copyright 2016-2022 The OpenSSL Project Authors. All Rights Reserved.
3  *
4  * Licensed under the Apache License 2.0 (the "License").  You may not use
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
8  */
9 
10 /* test_multi below tests the thread safety of a deprecated function */
11 #define OPENSSL_SUPPRESS_DEPRECATED
12 
13 #if defined(_WIN32)
14 # include <windows.h>
15 #endif
16 
17 #include <string.h>
18 #include <openssl/crypto.h>
19 #include <openssl/rsa.h>
20 #include <openssl/aes.h>
21 #include <openssl/rsa.h>
22 #include "testutil.h"
23 #include "threadstest.h"
24 
25 /* Limit the maximum number of threads */
26 #define MAXIMUM_THREADS     10
27 
28 /* Limit the maximum number of providers loaded into a library context */
29 #define MAXIMUM_PROVIDERS   4
30 
31 static int do_fips = 0;
32 static char *privkey;
33 static char *config_file = NULL;
34 static int multidefault_run = 0;
35 static const char *default_provider[] = { "default", NULL };
36 
37 static int test_lock(void)
38 {
39     CRYPTO_RWLOCK *lock = CRYPTO_THREAD_lock_new();
40     int res;
41 
42     res = TEST_true(CRYPTO_THREAD_read_lock(lock))
43           && TEST_true(CRYPTO_THREAD_unlock(lock))
44           && TEST_true(CRYPTO_THREAD_write_lock(lock))
45           && TEST_true(CRYPTO_THREAD_unlock(lock));
46 
47     CRYPTO_THREAD_lock_free(lock);
48 
49     return res;
50 }
51 
52 static CRYPTO_ONCE once_run = CRYPTO_ONCE_STATIC_INIT;
53 static unsigned once_run_count = 0;
54 
55 static void once_do_run(void)
56 {
57     once_run_count++;
58 }
59 
60 static void once_run_thread_cb(void)
61 {
62     CRYPTO_THREAD_run_once(&once_run, once_do_run);
63 }
64 
65 static int test_once(void)
66 {
67     thread_t thread;
68 
69     if (!TEST_true(run_thread(&thread, once_run_thread_cb))
70         || !TEST_true(wait_for_thread(thread))
71         || !CRYPTO_THREAD_run_once(&once_run, once_do_run)
72         || !TEST_int_eq(once_run_count, 1))
73         return 0;
74     return 1;
75 }
76 
77 static CRYPTO_THREAD_LOCAL thread_local_key;
78 static unsigned destructor_run_count = 0;
79 static int thread_local_thread_cb_ok = 0;
80 
81 static void thread_local_destructor(void *arg)
82 {
83     unsigned *count;
84 
85     if (arg == NULL)
86         return;
87 
88     count = arg;
89 
90     (*count)++;
91 }
92 
93 static void thread_local_thread_cb(void)
94 {
95     void *ptr;
96 
97     ptr = CRYPTO_THREAD_get_local(&thread_local_key);
98     if (!TEST_ptr_null(ptr)
99         || !TEST_true(CRYPTO_THREAD_set_local(&thread_local_key,
100                                               &destructor_run_count)))
101         return;
102 
103     ptr = CRYPTO_THREAD_get_local(&thread_local_key);
104     if (!TEST_ptr_eq(ptr, &destructor_run_count))
105         return;
106 
107     thread_local_thread_cb_ok = 1;
108 }
109 
110 static int test_thread_local(void)
111 {
112     thread_t thread;
113     void *ptr = NULL;
114 
115     if (!TEST_true(CRYPTO_THREAD_init_local(&thread_local_key,
116                                             thread_local_destructor)))
117         return 0;
118 
119     ptr = CRYPTO_THREAD_get_local(&thread_local_key);
120     if (!TEST_ptr_null(ptr)
121         || !TEST_true(run_thread(&thread, thread_local_thread_cb))
122         || !TEST_true(wait_for_thread(thread))
123         || !TEST_int_eq(thread_local_thread_cb_ok, 1))
124         return 0;
125 
126 #if defined(OPENSSL_THREADS) && !defined(CRYPTO_TDEBUG)
127 
128     ptr = CRYPTO_THREAD_get_local(&thread_local_key);
129     if (!TEST_ptr_null(ptr))
130         return 0;
131 
132 # if !defined(OPENSSL_SYS_WINDOWS)
133     if (!TEST_int_eq(destructor_run_count, 1))
134         return 0;
135 # endif
136 #endif
137 
138     if (!TEST_true(CRYPTO_THREAD_cleanup_local(&thread_local_key)))
139         return 0;
140     return 1;
141 }
142 
143 static int test_atomic(void)
144 {
145     int val = 0, ret = 0, testresult = 0;
146     uint64_t val64 = 1, ret64 = 0;
147     CRYPTO_RWLOCK *lock = CRYPTO_THREAD_lock_new();
148 
149     if (!TEST_ptr(lock))
150         return 0;
151 
152     if (CRYPTO_atomic_add(&val, 1, &ret, NULL)) {
153         /* This succeeds therefore we're on a platform with lockless atomics */
154         if (!TEST_int_eq(val, 1) || !TEST_int_eq(val, ret))
155             goto err;
156     } else {
157         /* This failed therefore we're on a platform without lockless atomics */
158         if (!TEST_int_eq(val, 0) || !TEST_int_eq(val, ret))
159             goto err;
160     }
161     val = 0;
162     ret = 0;
163 
164     if (!TEST_true(CRYPTO_atomic_add(&val, 1, &ret, lock)))
165         goto err;
166     if (!TEST_int_eq(val, 1) || !TEST_int_eq(val, ret))
167         goto err;
168 
169     if (CRYPTO_atomic_or(&val64, 2, &ret64, NULL)) {
170         /* This succeeds therefore we're on a platform with lockless atomics */
171         if (!TEST_uint_eq((unsigned int)val64, 3)
172                 || !TEST_uint_eq((unsigned int)val64, (unsigned int)ret64))
173             goto err;
174     } else {
175         /* This failed therefore we're on a platform without lockless atomics */
176         if (!TEST_uint_eq((unsigned int)val64, 1)
177                 || !TEST_int_eq((unsigned int)ret64, 0))
178             goto err;
179     }
180     val64 = 1;
181     ret64 = 0;
182 
183     if (!TEST_true(CRYPTO_atomic_or(&val64, 2, &ret64, lock)))
184         goto err;
185 
186     if (!TEST_uint_eq((unsigned int)val64, 3)
187             || !TEST_uint_eq((unsigned int)val64, (unsigned int)ret64))
188         goto err;
189 
190     ret64 = 0;
191     if (CRYPTO_atomic_load(&val64, &ret64, NULL)) {
192         /* This succeeds therefore we're on a platform with lockless atomics */
193         if (!TEST_uint_eq((unsigned int)val64, 3)
194                 || !TEST_uint_eq((unsigned int)val64, (unsigned int)ret64))
195             goto err;
196     } else {
197         /* This failed therefore we're on a platform without lockless atomics */
198         if (!TEST_uint_eq((unsigned int)val64, 3)
199                 || !TEST_int_eq((unsigned int)ret64, 0))
200             goto err;
201     }
202 
203     ret64 = 0;
204     if (!TEST_true(CRYPTO_atomic_load(&val64, &ret64, lock)))
205         goto err;
206 
207     if (!TEST_uint_eq((unsigned int)val64, 3)
208             || !TEST_uint_eq((unsigned int)val64, (unsigned int)ret64))
209         goto err;
210 
211     testresult = 1;
212  err:
213     CRYPTO_THREAD_lock_free(lock);
214     return testresult;
215 }
216 
217 static OSSL_LIB_CTX *multi_libctx = NULL;
218 static int multi_success;
219 static OSSL_PROVIDER *multi_provider[MAXIMUM_PROVIDERS + 1];
220 static size_t multi_num_threads;
221 static thread_t multi_threads[MAXIMUM_THREADS];
222 
223 static void multi_intialise(void)
224 {
225     multi_success = 1;
226     multi_libctx = NULL;
227     multi_num_threads = 0;
228     memset(multi_threads, 0, sizeof(multi_threads));
229     memset(multi_provider, 0, sizeof(multi_provider));
230 }
231 
232 static void thead_teardown_libctx(void)
233 {
234     OSSL_PROVIDER **p;
235 
236     for (p = multi_provider; *p != NULL; p++)
237         OSSL_PROVIDER_unload(*p);
238     OSSL_LIB_CTX_free(multi_libctx);
239     multi_intialise();
240 }
241 
242 static int thread_setup_libctx(int libctx, const char *providers[])
243 {
244     size_t n;
245 
246     if (libctx && !TEST_true(test_get_libctx(&multi_libctx, NULL, config_file,
247                                              NULL, NULL)))
248         return 0;
249 
250     if (providers != NULL)
251         for (n = 0; providers[n] != NULL; n++)
252             if (!TEST_size_t_lt(n, MAXIMUM_PROVIDERS)
253                 || !TEST_ptr(multi_provider[n] = OSSL_PROVIDER_load(multi_libctx,
254                                                                     providers[n]))) {
255                 thead_teardown_libctx();
256                 return 0;
257             }
258     return 1;
259 }
260 
261 static int teardown_threads(void)
262 {
263     size_t i;
264 
265     for (i = 0; i < multi_num_threads; i++)
266         if (!TEST_true(wait_for_thread(multi_threads[i])))
267             return 0;
268     return 1;
269 }
270 
271 static int start_threads(size_t n, void (*thread_func)(void))
272 {
273     size_t i;
274 
275     if (!TEST_size_t_le(multi_num_threads + n, MAXIMUM_THREADS))
276         return 0;
277 
278     for (i = 0 ; i < n; i++)
279         if (!TEST_true(run_thread(multi_threads + multi_num_threads++, thread_func)))
280             return 0;
281     return 1;
282 }
283 
284 /* Template multi-threaded test function */
285 static int thread_run_test(void (*main_func)(void),
286                            size_t num_threads, void (*thread_func)(void),
287                            int libctx, const char *providers[])
288 {
289     int testresult = 0;
290 
291     multi_intialise();
292     if (!thread_setup_libctx(libctx, providers)
293             || !start_threads(num_threads, thread_func))
294         goto err;
295 
296     if (main_func != NULL)
297         main_func();
298 
299     if (!teardown_threads()
300             || !TEST_true(multi_success))
301         goto err;
302     testresult = 1;
303  err:
304     thead_teardown_libctx();
305     return testresult;
306 }
307 
308 static void thread_general_worker(void)
309 {
310     EVP_MD_CTX *mdctx = EVP_MD_CTX_new();
311     EVP_MD *md = EVP_MD_fetch(multi_libctx, "SHA2-256", NULL);
312     EVP_CIPHER_CTX *cipherctx = EVP_CIPHER_CTX_new();
313     EVP_CIPHER *ciph = EVP_CIPHER_fetch(multi_libctx, "AES-128-CBC", NULL);
314     const char *message = "Hello World";
315     size_t messlen = strlen(message);
316     /* Should be big enough for encryption output too */
317     unsigned char out[EVP_MAX_MD_SIZE];
318     const unsigned char key[AES_BLOCK_SIZE] = {
319         0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
320         0x0c, 0x0d, 0x0e, 0x0f
321     };
322     const unsigned char iv[AES_BLOCK_SIZE] = {
323         0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
324         0x0c, 0x0d, 0x0e, 0x0f
325     };
326     unsigned int mdoutl;
327     int ciphoutl;
328     EVP_PKEY *pkey = NULL;
329     int testresult = 0;
330     int i, isfips;
331 
332     isfips = OSSL_PROVIDER_available(multi_libctx, "fips");
333 
334     if (!TEST_ptr(mdctx)
335             || !TEST_ptr(md)
336             || !TEST_ptr(cipherctx)
337             || !TEST_ptr(ciph))
338         goto err;
339 
340     /* Do some work */
341     for (i = 0; i < 5; i++) {
342         if (!TEST_true(EVP_DigestInit_ex(mdctx, md, NULL))
343                 || !TEST_true(EVP_DigestUpdate(mdctx, message, messlen))
344                 || !TEST_true(EVP_DigestFinal(mdctx, out, &mdoutl)))
345             goto err;
346     }
347     for (i = 0; i < 5; i++) {
348         if (!TEST_true(EVP_EncryptInit_ex(cipherctx, ciph, NULL, key, iv))
349                 || !TEST_true(EVP_EncryptUpdate(cipherctx, out, &ciphoutl,
350                                                 (unsigned char *)message,
351                                                 messlen))
352                 || !TEST_true(EVP_EncryptFinal(cipherctx, out, &ciphoutl)))
353             goto err;
354     }
355 
356     /*
357      * We want the test to run quickly - not securely.
358      * Therefore we use an insecure bit length where we can (512).
359      * In the FIPS module though we must use a longer length.
360      */
361     pkey = EVP_PKEY_Q_keygen(multi_libctx, NULL, "RSA", isfips ? 2048 : 512);
362     if (!TEST_ptr(pkey))
363         goto err;
364 
365     testresult = 1;
366  err:
367     EVP_MD_CTX_free(mdctx);
368     EVP_MD_free(md);
369     EVP_CIPHER_CTX_free(cipherctx);
370     EVP_CIPHER_free(ciph);
371     EVP_PKEY_free(pkey);
372     if (!testresult)
373         multi_success = 0;
374 }
375 
376 static void thread_multi_simple_fetch(void)
377 {
378     EVP_MD *md = EVP_MD_fetch(multi_libctx, "SHA2-256", NULL);
379 
380     if (md != NULL)
381         EVP_MD_free(md);
382     else
383         multi_success = 0;
384 }
385 
386 static EVP_PKEY *shared_evp_pkey = NULL;
387 
388 static void thread_shared_evp_pkey(void)
389 {
390     char *msg = "Hello World";
391     unsigned char ctbuf[256];
392     unsigned char ptbuf[256];
393     size_t ptlen, ctlen = sizeof(ctbuf);
394     EVP_PKEY_CTX *ctx = NULL;
395     int success = 0;
396     int i;
397 
398     for (i = 0; i < 1 + do_fips; i++) {
399         if (i > 0)
400             EVP_PKEY_CTX_free(ctx);
401         ctx = EVP_PKEY_CTX_new_from_pkey(multi_libctx, shared_evp_pkey,
402                                          i == 0 ? "provider=default"
403                                                 : "provider=fips");
404         if (!TEST_ptr(ctx))
405             goto err;
406 
407         if (!TEST_int_ge(EVP_PKEY_encrypt_init(ctx), 0)
408                 || !TEST_int_ge(EVP_PKEY_encrypt(ctx, ctbuf, &ctlen,
409                                                 (unsigned char *)msg, strlen(msg)),
410                                                 0))
411             goto err;
412 
413         EVP_PKEY_CTX_free(ctx);
414         ctx = EVP_PKEY_CTX_new_from_pkey(multi_libctx, shared_evp_pkey, NULL);
415 
416         if (!TEST_ptr(ctx))
417             goto err;
418 
419         ptlen = sizeof(ptbuf);
420         if (!TEST_int_ge(EVP_PKEY_decrypt_init(ctx), 0)
421                 || !TEST_int_gt(EVP_PKEY_decrypt(ctx, ptbuf, &ptlen, ctbuf, ctlen),
422                                                 0)
423                 || !TEST_mem_eq(msg, strlen(msg), ptbuf, ptlen))
424             goto err;
425     }
426 
427     success = 1;
428 
429  err:
430     EVP_PKEY_CTX_free(ctx);
431     if (!success)
432         multi_success = 0;
433 }
434 
435 static void thread_downgrade_shared_evp_pkey(void)
436 {
437 #ifndef OPENSSL_NO_DEPRECATED_3_0
438     /*
439      * This test is only relevant for deprecated functions that perform
440      * downgrading
441      */
442     if (EVP_PKEY_get0_RSA(shared_evp_pkey) == NULL)
443         multi_success = 0;
444 #else
445     /* Shouldn't ever get here */
446     multi_success = 0;
447 #endif
448 }
449 
450 static void thread_provider_load_unload(void)
451 {
452     OSSL_PROVIDER *deflt = OSSL_PROVIDER_load(multi_libctx, "default");
453 
454     if (!TEST_ptr(deflt)
455             || !TEST_true(OSSL_PROVIDER_available(multi_libctx, "default")))
456         multi_success = 0;
457 
458     OSSL_PROVIDER_unload(deflt);
459 }
460 
461 /*
462  * Do work in multiple worker threads at the same time.
463  * Test 0: General worker, using the default provider
464  * Test 1: General worker, using the fips provider
465  * Test 2: Simple fetch worker
466  * Test 3: Worker downgrading a shared EVP_PKEY
467  * Test 4: Worker using a shared EVP_PKEY
468  * Test 5: Worker loading and unloading a provider
469  */
470 static int test_multi(int idx)
471 {
472     thread_t thread1, thread2;
473     int testresult = 0;
474     OSSL_PROVIDER *prov = NULL, *prov2 = NULL;
475     void (*worker)(void) = NULL;
476     void (*worker2)(void) = NULL;
477     EVP_MD *sha256 = NULL;
478 
479     if (idx == 1 && !do_fips)
480         return TEST_skip("FIPS not supported");
481 
482 #ifdef OPENSSL_NO_DEPRECATED_3_0
483     if (idx == 3)
484         return TEST_skip("Skipping tests for deprected functions");
485 #endif
486 
487     multi_success = 1;
488     if (!TEST_true(test_get_libctx(&multi_libctx, NULL, config_file,
489                                    NULL, NULL)))
490         return 0;
491 
492     prov = OSSL_PROVIDER_load(multi_libctx, (idx == 1) ? "fips" : "default");
493     if (!TEST_ptr(prov))
494         goto err;
495 
496     switch (idx) {
497     case 0:
498     case 1:
499         worker = thread_general_worker;
500         break;
501     case 2:
502         worker = thread_multi_simple_fetch;
503         break;
504     case 3:
505         worker2 = thread_downgrade_shared_evp_pkey;
506         /* fall through */
507     case 4:
508         /*
509          * If available we have both the default and fips providers for this
510          * test
511          */
512         if (do_fips
513                 && !TEST_ptr(prov2 = OSSL_PROVIDER_load(multi_libctx, "fips")))
514             goto err;
515         if (!TEST_ptr(shared_evp_pkey = load_pkey_pem(privkey, multi_libctx)))
516             goto err;
517         worker = thread_shared_evp_pkey;
518         break;
519     case 5:
520         /*
521          * We ensure we get an md from the default provider, and then unload the
522          * provider. This ensures the provider remains around but in a
523          * deactivated state.
524          */
525         sha256 = EVP_MD_fetch(multi_libctx, "SHA2-256", NULL);
526         OSSL_PROVIDER_unload(prov);
527         prov = NULL;
528         worker = thread_provider_load_unload;
529         break;
530     default:
531         TEST_error("Invalid test index");
532         goto err;
533     }
534     if (worker2 == NULL)
535         worker2 = worker;
536 
537     if (!TEST_true(run_thread(&thread1, worker))
538             || !TEST_true(run_thread(&thread2, worker2)))
539         goto err;
540 
541     worker();
542 
543     testresult = 1;
544     /*
545      * Don't combine these into one if statement; must wait for both threads.
546      */
547     if (!TEST_true(wait_for_thread(thread1)))
548         testresult = 0;
549     if (!TEST_true(wait_for_thread(thread2)))
550         testresult = 0;
551     if (!TEST_true(multi_success))
552         testresult = 0;
553 
554  err:
555     EVP_MD_free(sha256);
556     OSSL_PROVIDER_unload(prov);
557     OSSL_PROVIDER_unload(prov2);
558     OSSL_LIB_CTX_free(multi_libctx);
559     EVP_PKEY_free(shared_evp_pkey);
560     shared_evp_pkey = NULL;
561     multi_libctx = NULL;
562     return testresult;
563 }
564 
565 static char *multi_load_provider = "legacy";
566 /*
567  * This test attempts to load several providers at the same time, and if
568  * run with a thread sanitizer, should crash if the core provider code
569  * doesn't synchronize well enough.
570  */
571 #define MULTI_LOAD_THREADS 10
572 static void test_multi_load_worker(void)
573 {
574     OSSL_PROVIDER *prov;
575 
576     if (!TEST_ptr(prov = OSSL_PROVIDER_load(NULL, multi_load_provider))
577             || !TEST_true(OSSL_PROVIDER_unload(prov)))
578         multi_success = 0;
579 }
580 
581 static int test_multi_default(void)
582 {
583     thread_t thread1, thread2;
584     int testresult = 0;
585     OSSL_PROVIDER *prov = NULL;
586 
587     /* Avoid running this test twice */
588     if (multidefault_run) {
589         TEST_skip("multi default test already run");
590         return 1;
591     }
592     multidefault_run = 1;
593 
594     multi_success = 1;
595     multi_libctx = NULL;
596     prov = OSSL_PROVIDER_load(multi_libctx, "default");
597     if (!TEST_ptr(prov))
598         goto err;
599 
600     if (!TEST_true(run_thread(&thread1, thread_multi_simple_fetch))
601             || !TEST_true(run_thread(&thread2, thread_multi_simple_fetch)))
602         goto err;
603 
604     thread_multi_simple_fetch();
605 
606     if (!TEST_true(wait_for_thread(thread1))
607             || !TEST_true(wait_for_thread(thread2))
608             || !TEST_true(multi_success))
609         goto err;
610 
611     testresult = 1;
612 
613  err:
614     OSSL_PROVIDER_unload(prov);
615     return testresult;
616 }
617 
618 static int test_multi_load(void)
619 {
620     thread_t threads[MULTI_LOAD_THREADS];
621     int i, res = 1;
622     OSSL_PROVIDER *prov;
623 
624     /* The multidefault test must run prior to this test */
625     if (!multidefault_run) {
626         TEST_info("Running multi default test first");
627         res = test_multi_default();
628     }
629 
630     /*
631      * We use the legacy provider in test_multi_load_worker because it uses a
632      * child libctx that might hit more codepaths that might be sensitive to
633      * threading issues. But in a no-legacy build that won't be loadable so
634      * we use the default provider instead.
635      */
636     prov = OSSL_PROVIDER_load(NULL, "legacy");
637     if (prov == NULL) {
638         TEST_info("Cannot load legacy provider - assuming this is a no-legacy build");
639         multi_load_provider = "default";
640     }
641     OSSL_PROVIDER_unload(prov);
642 
643     multi_success = 1;
644     for (i = 0; i < MULTI_LOAD_THREADS; i++)
645         (void)TEST_true(run_thread(&threads[i], test_multi_load_worker));
646 
647     for (i = 0; i < MULTI_LOAD_THREADS; i++)
648         (void)TEST_true(wait_for_thread(threads[i]));
649 
650     return res && multi_success;
651 }
652 
653 static void test_lib_ctx_load_config_worker(void)
654 {
655     if (!TEST_int_eq(OSSL_LIB_CTX_load_config(multi_libctx, config_file), 1))
656         multi_success = 0;
657 }
658 
659 static int test_lib_ctx_load_config(void)
660 {
661     return thread_run_test(&test_lib_ctx_load_config_worker,
662                            MAXIMUM_THREADS, &test_lib_ctx_load_config_worker,
663                            1, default_provider);
664 }
665 
666 typedef enum OPTION_choice {
667     OPT_ERR = -1,
668     OPT_EOF = 0,
669     OPT_FIPS, OPT_CONFIG_FILE,
670     OPT_TEST_ENUM
671 } OPTION_CHOICE;
672 
673 const OPTIONS *test_get_options(void)
674 {
675     static const OPTIONS options[] = {
676         OPT_TEST_OPTIONS_DEFAULT_USAGE,
677         { "fips", OPT_FIPS, '-', "Test the FIPS provider" },
678         { "config", OPT_CONFIG_FILE, '<',
679           "The configuration file to use for the libctx" },
680         { NULL }
681     };
682     return options;
683 }
684 
685 int setup_tests(void)
686 {
687     OPTION_CHOICE o;
688     char *datadir;
689 
690     while ((o = opt_next()) != OPT_EOF) {
691         switch (o) {
692         case OPT_FIPS:
693             do_fips = 1;
694             break;
695         case OPT_CONFIG_FILE:
696             config_file = opt_arg();
697             break;
698         case OPT_TEST_CASES:
699             break;
700         default:
701             return 0;
702         }
703     }
704 
705     if (!TEST_ptr(datadir = test_get_argument(0)))
706         return 0;
707 
708     privkey = test_mk_file_path(datadir, "rsakey.pem");
709     if (!TEST_ptr(privkey))
710         return 0;
711 
712     /* Keep first to validate auto creation of default library context */
713     ADD_TEST(test_multi_default);
714 
715     ADD_TEST(test_lock);
716     ADD_TEST(test_once);
717     ADD_TEST(test_thread_local);
718     ADD_TEST(test_atomic);
719     ADD_TEST(test_multi_load);
720     ADD_ALL_TESTS(test_multi, 6);
721     ADD_TEST(test_lib_ctx_load_config);
722     return 1;
723 }
724 
725 void cleanup_tests(void)
726 {
727     OPENSSL_free(privkey);
728 }
729