MBEDTLS_PSA_INJECT_ENTROPY: Make sure the seed file exist when running tests
The seed file must exist before running tests. Because the location is
somewhat platform- and configuration-dependent, and to be friendly to
developers who run test suites individually and aren't familiar with this
feature, rely on the test framework code rather than on test scripts to
create the seed file.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/tests/src/psa_crypto_helpers.c b/tests/src/psa_crypto_helpers.c
index 7861185..cab96ab 100644
--- a/tests/src/psa_crypto_helpers.c
+++ b/tests/src/psa_crypto_helpers.c
@@ -178,6 +178,20 @@
return 0;
}
+int mbedtls_test_inject_entropy_restore(void)
+{
+ unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE];
+ for (size_t i = 0; i < sizeof(buf); i++) {
+ buf[i] = (unsigned char) i;
+ }
+ psa_status_t status = mbedtls_psa_inject_entropy(buf, sizeof(buf));
+ /* It's ok if the file was just created, or if it already exists. */
+ if (status != PSA_SUCCESS && status != PSA_ERROR_NOT_PERMITTED) {
+ return status;
+ }
+ return PSA_SUCCESS;
+}
+
#endif /* MBEDTLS_PSA_INJECT_ENTROPY */
#endif /* MBEDTLS_PSA_CRYPTO_C */