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/helpers.c b/tests/src/helpers.c
index 30fd362..7cac6e0 100644
--- a/tests/src/helpers.c
+++ b/tests/src/helpers.c
@@ -20,6 +20,11 @@
#include <test/macros.h>
#include <string.h>
+#if defined(MBEDTLS_PSA_INJECT_ENTROPY)
+#include <psa/crypto.h>
+#include <test/psa_crypto_helpers.h>
+#endif
+
/*----------------------------------------------------------------------------*/
/* Static global variables */
@@ -35,9 +40,22 @@
int mbedtls_test_platform_setup(void)
{
int ret = 0;
+
+#if defined(MBEDTLS_PSA_INJECT_ENTROPY)
+ /* Make sure that injected entropy is present. Otherwise
+ * psa_crypto_init() will fail. This is not necessary for test suites
+ * that don't use PSA, but it's harmless (except for leaving a file
+ * behind). */
+ ret = mbedtls_test_inject_entropy_restore();
+ if (ret != 0) {
+ return ret;
+ }
+#endif
+
#if defined(MBEDTLS_PLATFORM_C)
ret = mbedtls_platform_setup(&platform_ctx);
#endif /* MBEDTLS_PLATFORM_C */
+
return ret;
}