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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 17:43:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 17:43:51 +0000
commitbe58c81aff4cd4c0ccf43dbd7998da4a6a08c03b (patch)
tree779c248fb61c83f65d1f0dc867f2053d76b4e03a /include/drivers/auth/mbedtls/psa_mbedtls_config.h
parentInitial commit. (diff)
downloadarm-trusted-firmware-be58c81aff4cd4c0ccf43dbd7998da4a6a08c03b.tar.xz
arm-trusted-firmware-be58c81aff4cd4c0ccf43dbd7998da4a6a08c03b.zip
Adding upstream version 2.10.0+dfsg.upstream/2.10.0+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/drivers/auth/mbedtls/psa_mbedtls_config.h')
-rw-r--r--include/drivers/auth/mbedtls/psa_mbedtls_config.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/include/drivers/auth/mbedtls/psa_mbedtls_config.h b/include/drivers/auth/mbedtls/psa_mbedtls_config.h
new file mode 100644
index 0000000..ad825f0
--- /dev/null
+++ b/include/drivers/auth/mbedtls/psa_mbedtls_config.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2023, Arm Ltd. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PSA_MBEDTLS_CONFIG_H
+#define PSA_MBEDTLS_CONFIG_H
+
+#include "mbedtls_config-3.h"
+
+#define MBEDTLS_PSA_CRYPTO_C
+
+/*
+ * Using PSA crypto API requires an RNG right now. If we don't define the macro
+ * below then we get build errors.
+ *
+ * This is a functionality gap in mbedTLS. The technical limitation is that
+ * psa_crypto_init() is all-or-nothing, and fixing that would require separate
+ * initialization of the keystore, the RNG, etc.
+ *
+ * By defining MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG, we pretend using an external
+ * RNG. As a result, the PSA crypto init code does nothing when it comes to
+ * initializing the RNG, as we are supposed to take care of that ourselves.
+ */
+#define MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG
+
+#endif /* PSA_MBEDTLS_CONFIG_H */