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Resetting DRBG when calling RAND_reset_for_fuzzing #4

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Resetting DRBG when calling RAND_reset_for_fuzzing #4

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19 changes: 18 additions & 1 deletion crypto/rand_extra/deterministic.c
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,24 @@
static uint64_t g_num_calls = 0;
static CRYPTO_MUTEX g_num_calls_lock = CRYPTO_MUTEX_INIT;

void RAND_reset_for_fuzzing(void) { g_num_calls = 0; }
static void rand_thread_state_free(void *state_in) {
struct rand_thread_state *state = state_in;

if (state_in == NULL) {
return;
}

OPENSSL_free(state);
}

void RAND_reset_for_fuzzing(void) {
g_num_calls = 0;
struct rand_thread_state *state =
CRYPTO_get_thread_local(OPENSSL_THREAD_LOCAL_RAND);
rand_thread_state_free(state);

CRYPTO_set_thread_local(OPENSSL_THREAD_LOCAL_RAND, NULL, NULL);
}

void CRYPTO_sysrand(uint8_t *out, size_t requested) {
static const uint8_t kZeroKey[32];
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