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Add a threading test for loading/unloading providers

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Check that we don't see any threading issues when loading/unloading a
provider from multiple threads.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15010)
This commit is contained in:
Matt Caswell 2021-04-23 14:10:07 +01:00
parent 4189dc3782
commit 98369ef25f
1 changed files with 25 additions and 1 deletions
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26
test/threadstest.c
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@ -419,6 +419,16 @@ static void thread_downgrade_shared_evp_pkey(void)
#endif
}
static void thread_provider_load_unload(void)
{
OSSL_PROVIDER *deflt = OSSL_PROVIDER_load(multi_libctx, "default");
if (!TEST_ptr(deflt)
|| !TEST_true(OSSL_PROVIDER_available(multi_libctx, "default")))
multi_success = 0;
OSSL_PROVIDER_unload(deflt);
}
/*
* Do work in multiple worker threads at the same time.
@ -427,6 +437,7 @@ static void thread_downgrade_shared_evp_pkey(void)
* Test 2: Simple fetch worker
* Test 3: Worker downgrading a shared EVP_PKEY
* Test 4: Worker using a shared EVP_PKEY
* Test 5: Workder loading and unloading a provider
*/
static int test_multi(int idx)
{
@ -435,6 +446,7 @@ static int test_multi(int idx)
OSSL_PROVIDER *prov = NULL, *prov2 = NULL;
void (*worker)(void) = NULL;
void (*worker2)(void) = NULL;
EVP_MD *sha256 = NULL;
if (idx == 1 && !do_fips)
return TEST_skip("FIPS not supported");
@ -475,6 +487,17 @@ static int test_multi(int idx)
goto err;
worker = thread_shared_evp_pkey;
break;
case 5:
/*
* We ensure we get an md from the default provider, and then unload the
* provider. This ensures the provider remains around but in a
* deactivated state.
*/
sha256 = EVP_MD_fetch(multi_libctx, "SHA2-256", NULL);
OSSL_PROVIDER_unload(prov);
prov = NULL;
worker = thread_provider_load_unload;
break;
default:
TEST_error("Invalid test index");
goto err;
@ -496,6 +519,7 @@ static int test_multi(int idx)
testresult = 1;
err:
EVP_MD_free(sha256);
OSSL_PROVIDER_unload(prov);
OSSL_PROVIDER_unload(prov2);
OSSL_LIB_CTX_free(multi_libctx);
@ -612,7 +636,7 @@ int setup_tests(void)
ADD_TEST(test_thread_local);
ADD_TEST(test_atomic);
ADD_TEST(test_multi_load);
ADD_ALL_TESTS(test_multi, 5);
ADD_ALL_TESTS(test_multi, 6);
return 1;
}