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/* SPDX-License-Identifier: BSD-3-Clause */
#include <openssl/provider.h>
#include <openssl/rand.h>
#define THREAD_COUNT 10
void *generate_random(void *arg) {
unsigned char buffer[1024];
/* 1 on success */
return (void *)(size_t)(RAND_bytes(buffer, sizeof(buffer)) == 1);
}
int main() {
OSSL_PROVIDER *prov;
pthread_t thread[THREAD_COUNT];
int i, failed = 0;
size_t res;
if ((prov = OSSL_PROVIDER_load(NULL, "tpm2")) == NULL)
return THREAD_COUNT+1;
/* start multiple parallel operations */
for (i = 0; i < THREAD_COUNT; i++) {
if (pthread_create(thread+i, NULL, generate_random, NULL))
return THREAD_COUNT+2;
}
/* count failures */
for (i = 0; i < THREAD_COUNT; i++) {
if (pthread_join(thread[i], (void **)&res) || !res)
failed++;
}
if (!OSSL_PROVIDER_unload(prov))
return THREAD_COUNT+3;
return failed;
}
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