Move bignum code path testing out of the library
Without this, it's not at all obvious that turning on MBEDTLS_TEST_HOOKS
doesn't change the functional behavior of the code.
Signed-off-by: Janos Follath <janos.follath@arm.com>
diff --git a/tests/src/bignum_codepath_check.c b/tests/src/bignum_codepath_check.c
new file mode 100644
index 0000000..b6b85d9
--- /dev/null
+++ b/tests/src/bignum_codepath_check.c
@@ -0,0 +1,39 @@
+/** Support for path tracking in optionally safe bignum functions
+ */
+/*
+ * Copyright The Mbed TLS Contributors
+ * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+ */
+
+#include "test/bignum_codepath_check.h"
+#include "bignum_core_invasive.h"
+
+#if defined(MBEDTLS_TEST_HOOKS) && !defined(MBEDTLS_THREADING_C)
+int mbedtls_codepath_check = MBEDTLS_MPI_IS_TEST;
+
+void mbedtls_codepath_take_safe(void)
+{
+ if(mbedtls_codepath_check == MBEDTLS_MPI_IS_TEST) {
+ mbedtls_codepath_check = MBEDTLS_MPI_IS_SECRET;
+ }
+}
+
+void mbedtls_codepath_take_unsafe(void)
+{
+ mbedtls_codepath_check = MBEDTLS_MPI_IS_PUBLIC;
+}
+
+void mbedtls_codepath_test_hooks_setup(void)
+{
+ mbedtls_safe_codepath_hook = mbedtls_codepath_take_safe;
+ mbedtls_unsafe_codepath_hook = mbedtls_codepath_take_unsafe;
+}
+
+void mbedtls_codepath_test_hooks_teardown(void)
+{
+ mbedtls_safe_codepath_hook = NULL;
+ mbedtls_unsafe_codepath_hook = NULL;
+}
+
+#endif /* MBEDTLS_TEST_HOOKS && !MBEDTLS_THREADING_C */
+