From 0760b15d4564a2925f9a88272ec3a75a6792986d Mon Sep 17 00:00:00 2001
From: David Horstmann <david.horstmann@arm.com>
Date: Fri, 24 Nov 2023 16:21:04 +0000
Subject: [PATCH] Add memory poisoning hooks

Signed-off-by: David Horstmann <david.horstmann@arm.com>
---
 library/CMakeLists.txt |  5 ++++-
 library/psa_crypto.c   | 20 ++++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index c7105a1fdf..80a323702c 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -226,7 +226,10 @@ foreach(target IN LISTS target_libraries)
         PUBLIC ${MBEDTLS_DIR}/include/
         PUBLIC ${thirdparty_inc_public}
         PRIVATE ${MBEDTLS_DIR}/library/
-        PRIVATE ${thirdparty_inc})
+        PRIVATE ${thirdparty_inc}
+        # Needed to include psa_crypto_driver_wrappers.h
+        ${CMAKE_CURRENT_BINARY_DIR}
+        ${MBEDTLS_DIR}/tests/include/)
     target_compile_definitions(${target}
         PRIVATE ${thirdparty_def})
     # Pass-through MBEDTLS_CONFIG_FILE and MBEDTLS_USER_CONFIG_FILE
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 094b526311..60c81a572d 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -73,6 +73,10 @@
 #include "mbedtls/sha512.h"
 #include "mbedtls/xtea.h"
 
+#if defined(MBEDTLS_TEST_HOOKS)
+#include "test/memory.h"
+#endif
+
 #define ARRAY_LENGTH(array) (sizeof(array) / sizeof(*(array)))
 
 /****************************************************************/
@@ -5531,10 +5535,18 @@ psa_status_t psa_crypto_copy_input(const uint8_t *input, size_t input_len,
         return PSA_ERROR_CORRUPTION_DETECTED;
     }
 
+#if defined(MBEDTLS_TEST_HOOKS)
+    MBEDTLS_TEST_MEMORY_UNPOISON(input, input_len);
+#endif
+
     if (input_len > 0) {
         memcpy(input_copy, input, input_len);
     }
 
+#if defined(MBEDTLS_TEST_HOOKS)
+    MBEDTLS_TEST_MEMORY_POISON(input, input_len);
+#endif
+
     return PSA_SUCCESS;
 }
 
@@ -5558,10 +5570,18 @@ psa_status_t psa_crypto_copy_output(const uint8_t *output_copy, size_t output_co
         return PSA_ERROR_BUFFER_TOO_SMALL;
     }
 
+#if defined(MBEDTLS_TEST_HOOKS)
+    MBEDTLS_TEST_MEMORY_UNPOISON(output, output_len);
+#endif
+
     if (output_copy_len > 0) {
         memcpy(output, output_copy, output_copy_len);
     }
 
+#if defined(MBEDTLS_TEST_HOOKS)
+    MBEDTLS_TEST_MEMORY_POISON(output, output_len);
+#endif
+
     return PSA_SUCCESS;
 }