tests: Add build of a PSA test driver library

PR #3959 has proven that by adding a prefix
(LIBTESTDRIVER1/libtestdriver1_ in this commit) to
all MBEDTLS/PSA_* and mbedtls/psa_* symbols of a copy
of the Mbed TLS library, we can build a library that
can be linked with the Mbed TLS library.

This commit leverages this to build a PSA test driver
library based on the Mbed TLS library code.

The cryptographic features supported by the test
library are defined by:
. a minimal configuration (in the sense of config.h),
  see config_test_driver.h
. PSA_WANT_* and PSA_ACCEL_* defined macros.

The PSA_WANT_* macros have to be the same as the ones
used to build the Mbed TLS library the test driver
library is supposed to be linked to as the PSA_WANT_*
macros are used in the definition of structures and
macros that are shared by the PSA crypto core,
Mbed TLS drivers and the driver test library.

The PSA_ACCEL_* macros are intended to define the
cryptographic features that have to be removed
from the Mbed TLS library and thus supported by the
test library in test scenarios. The PSA_ACCEL_* macros
to build the test library are thus mirrored from the
ones to build the Mbed TLS library by extended the
crypto_config.h: see
crypto_config_test_driver_entension.h.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>

tests/.gitignore

@@ -18,3 +18,5 @@ include/test/instrument_record_status.h
 src/*.o
 src/drivers/*.o
 src/libmbed*
+
+libtestdriver1/*

tests/Makefile

@@ -176,6 +176,7 @@ ifndef WINDOWS
 	rm -rf $(BINARIES) *.c *.datax
 	rm -f src/*.o src/drivers/*.o src/libmbed*
 	rm -f include/test/instrument_record_status.h
+	rm -rf libtestdriver1
 else
 	if exist *.c del /Q /F *.c
 	if exist *.exe del /Q /F *.exe
@@ -199,6 +200,51 @@ check: $(BINARIES)
 
 test: check
 
+# Generate test library
+
+# Perl code that is executed to transform each original line from a library
+# source file into the corresponding line in the test driver copy of the
+# library. Add a LIBTESTDRIVER1_/libtestdriver1_ to mbedtls_xxx and psa_xxx
+# symbols.
+define libtestdriver1_rewrite :=
+	s!^(\s*#\s*include\s*[\"<])(mbedtls|psa)/!$${1}libtestdriver1/include/$${2}/!; \
+	next if /^\s*#\s*include/; \
+	s/\b(?=MBEDTLS_|PSA_)/LIBTESTDRIVER1_/g; \
+	s/\b(?=mbedtls_|psa_)/libtestdriver1_/g;
+endef
+
+libtestdriver1.a:
+	# Copy the library and fake a 3rdparty Makefile include.
+	rm -Rf ./libtestdriver1
+	mkdir ./libtestdriver1
+	cp -Rf ../library ./libtestdriver1
+	cp -Rf ../include ./libtestdriver1
+	cp -Rf ../scripts ./libtestdriver1
+	mkdir ./libtestdriver1/3rdparty
+	touch ./libtestdriver1/3rdparty/Makefile.inc
+
+	# Set the test driver base (minimal) configuration.
+	cp ./include/test/drivers/config_test_driver.h ./libtestdriver1/include/mbedtls/mbedtls_config.h
+
+	# Set the PSA cryptography configuration for the test library.
+	# It is set from the copied include/psa/crypto_config.h of the Mbed TLS
+        # library the test library is intended to be linked with extended by
+        # ./include/test/drivers/crypto_config_test_driver_extension.h to
+        # mirror the PSA_ACCEL_* macros.
+	mv ./libtestdriver1/include/psa/crypto_config.h ./libtestdriver1/include/psa/crypto_config.h.bak
+	head -n -1 ./libtestdriver1/include/psa/crypto_config.h.bak > ./libtestdriver1/include/psa/crypto_config.h
+	cat ./include/test/drivers/crypto_config_test_driver_extension.h >> ./libtestdriver1/include/psa/crypto_config.h
+	echo "#endif /* PSA_CRYPTO_CONFIG_H */" >> ./libtestdriver1/include/psa/crypto_config.h
+
+	# Prefix MBEDTLS_* PSA_* symbols with LIBTESTDRIVER1_ as well as
+	# mbedtls_* psa_* symbols with libtestdriver1_ to avoid symbol clash
+	# when this test driver library is linked with the Mbed TLS library.
+	perl -pi -e '$(libtestdriver1_rewrite)' ./libtestdriver1/library/*.[ch]
+	perl -pi -e '$(libtestdriver1_rewrite)' ./libtestdriver1/include/*/*.h
+
+	$(MAKE) -C ./libtestdriver1/library CFLAGS="-I../../ $(CFLAGS)" LDFLAGS="$(LDFLAGS)" libmbedcrypto.a
+	cp ./libtestdriver1/library/libmbedcrypto.a ../library/libtestdriver1.a
+
 ifdef RECORD_PSA_STATUS_COVERAGE_LOG
 include/test/instrument_record_status.h: ../include/psa/crypto.h Makefile
 	echo "  Gen  $@"

tests/include/test/drivers/config_test_driver.h

@@ -0,0 +1,59 @@
+/**
+ * \file config.h
+ *
+ * \brief Configuration options (set of defines)
+ *
+ *  This set of compile-time options may be used to enable
+ *  or disable features selectively, and reduce the global
+ *  memory footprint.
+ */
+/*
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#ifndef MBEDTLS_CONFIG_H
+#define MBEDTLS_CONFIG_H
+
+#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_DEPRECATE)
+#define _CRT_SECURE_NO_DEPRECATE 1
+#endif
+
+#define MBEDTLS_PSA_CRYPTO_C
+#define MBEDTLS_PSA_CRYPTO_CONFIG
+
+/* PSA core mandatory configuration options */
+#define MBEDTLS_CIPHER_C
+#define MBEDTLS_AES_C
+#define MBEDTLS_SHA224_C
+#define MBEDTLS_SHA256_C
+#define MBEDTLS_PSA_BUILTIN_ALG_SHA_256 1
+#define MBEDTLS_CTR_DRBG_C
+#define MBEDTLS_ENTROPY_C
+
+/*
+ * Configuration options that may need to be additionally enabled for the
+ * purpose of a specific set of tests.
+ */
+//#define MBEDTLS_SHA1_C
+//#define MBEDTLS_SHA384_C
+//#define MBEDTLS_SHA512_C
+//#define MBEDTLS_PEM_PARSE_C
+//#define MBEDTLS_BASE64_C
+
+#include "mbedtls/config_psa.h"
+#include "mbedtls/check_config.h"
+
+#endif /* MBEDTLS_CONFIG_H */

tests/include/test/drivers/crypto_config_test_driver_extension.h

@@ -0,0 +1,237 @@
+/**
+ * \file psa/crypto_config.h
+ * \brief PSA crypto configuration options (set of defines)
+ *
+ */
+
+#if defined(PSA_WANT_ALG_CBC_NO_PADDING)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_CBC_NO_PADDING)
+#undef MBEDTLS_PSA_ACCEL_ALG_CBC_NO_PADDING
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_CBC_NO_PADDING 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_CBC_PKCS7)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_CBC_PKCS7)
+#undef MBEDTLS_PSA_ACCEL_ALG_CBC_PKCS7
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_CBC_PKCS7 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_CFB)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_CFB)
+#undef MBEDTLS_PSA_ACCEL_ALG_CFB
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_CFB 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_CTR)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_CTR)
+#undef MBEDTLS_PSA_ACCEL_ALG_CTR
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_CTR 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_DETERMINISTIC_ECDSA)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_DETERMINISTIC_ECDSA)
+#undef MBEDTLS_PSA_ACCEL_ALG_DETERMINISTIC_ECDSA
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_DETERMINISTIC_ECDSA 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_ECDSA)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA)
+#undef MBEDTLS_PSA_ACCEL_ALG_ECDSA
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_ECDSA 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_MD2)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_MD2)
+#undef MBEDTLS_PSA_ACCEL_ALG_MD2
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_MD2 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_MD4)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_MD4)
+#undef MBEDTLS_PSA_ACCEL_ALG_MD4
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_MD4 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_MD5)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_MD5)
+#undef MBEDTLS_PSA_ACCEL_ALG_MD5
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_MD5 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_OFB)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_OFB)
+#undef MBEDTLS_PSA_ACCEL_ALG_OFB
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_OFB 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_RIPEMD160)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_RIPEMD160)
+#undef MBEDTLS_PSA_ACCEL_ALG_RIPEMD160
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_RIPEMD160 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_RSA_PKCS1V15_SIGN)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN)
+#undef MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_SIGN 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_RSA_PSS)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_RSA_PSS)
+#undef MBEDTLS_PSA_ACCEL_ALG_RSA_PSS
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_RSA_PSS 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_SHA_1)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_SHA_1)
+#undef MBEDTLS_PSA_ACCEL_ALG_SHA_1
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_SHA_1 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_SHA_224)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_SHA_224)
+#undef MBEDTLS_PSA_ACCEL_ALG_SHA_224
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_SHA_224 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_SHA_256)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_SHA_256)
+#undef MBEDTLS_PSA_ACCEL_ALG_SHA_256
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_SHA_256 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_SHA_384)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_SHA_384)
+#undef MBEDTLS_PSA_ACCEL_ALG_SHA_384
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_SHA_384 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_SHA_512)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_SHA_512)
+#undef MBEDTLS_PSA_ACCEL_ALG_SHA_512
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_SHA_512 1
+#endif
+#endif
+
+#if defined(PSA_WANT_ALG_XTS)
+#if defined(MBEDTLS_PSA_ACCEL_ALG_XTS)
+#undef MBEDTLS_PSA_ACCEL_ALG_XTS
+#else
+#define MBEDTLS_PSA_ACCEL_ALG_XTS 1
+#endif
+#endif
+
+#if defined(PSA_WANT_KEY_TYPE_AES)
+#if defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_AES)
+#undef MBEDTLS_PSA_ACCEL_KEY_TYPE_AES
+#else
+#define MBEDTLS_PSA_ACCEL_KEY_TYPE_AES 1
+#endif
+#endif
+
+#if defined(PSA_WANT_KEY_TYPE_ARIA)
+#if defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ARIA)
+#undef MBEDTLS_PSA_ACCEL_KEY_TYPE_ARIA
+#else
+#define MBEDTLS_PSA_ACCEL_KEY_TYPE_ARIA 1
+#endif
+#endif
+
+#if defined(PSA_WANT_KEY_TYPE_CAMELLIA)
+#if defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_CAMELLIA)
+#undef MBEDTLS_PSA_ACCEL_KEY_TYPE_CAMELLIA
+#else
+#define MBEDTLS_PSA_ACCEL_KEY_TYPE_CAMELLIA 1
+#endif
+#endif
+
+#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR)
+#if defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR)
+#undef MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR
+#else
+#define MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR 1
+#endif
+#endif
+
+#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR)
+#if defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR)
+#undef MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR
+#else
+#define MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR 1
+#endif
+#endif
+
+#define MBEDTLS_PSA_ACCEL_ALG_CBC_MAC 1
+#define MBEDTLS_PSA_ACCEL_ALG_CCM 1
+#define MBEDTLS_PSA_ACCEL_ALG_CHACHA20_POLY1305 1
+#define MBEDTLS_PSA_ACCEL_ALG_CMAC 1
+#define MBEDTLS_PSA_ACCEL_ALG_ECB_NO_PADDING 1
+#define MBEDTLS_PSA_ACCEL_ALG_ECDH 1
+#define MBEDTLS_PSA_ACCEL_ALG_GCM 1
+#define MBEDTLS_PSA_ACCEL_ALG_HKDF 1
+#define MBEDTLS_PSA_ACCEL_ALG_HMAC 1
+#define MBEDTLS_PSA_ACCEL_ALG_RSA_OAEP 1
+#define MBEDTLS_PSA_ACCEL_ALG_RSA_PKCS1V15_CRYPT 1
+#define MBEDTLS_PSA_ACCEL_ALG_STREAM_CIPHER 1
+#define MBEDTLS_PSA_ACCEL_ALG_TLS12_PRF 1
+#define MBEDTLS_PSA_ACCEL_ALG_TLS12_PSK_TO_MS 1
+
+#if defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA)
+#define MBEDTLS_PSA_ACCEL_ECC_BRAINPOOL_P_R1_256 1
+#define MBEDTLS_PSA_ACCEL_ECC_BRAINPOOL_P_R1_384 1
+#define MBEDTLS_PSA_ACCEL_ECC_BRAINPOOL_P_R1_512 1
+#define MBEDTLS_PSA_ACCEL_ECC_MONTGOMERY_255 1
+#define MBEDTLS_PSA_ACCEL_ECC_MONTGOMERY_448 1
+#define MBEDTLS_PSA_ACCEL_ECC_SECP_K1_192 1
+#define MBEDTLS_PSA_ACCEL_ECC_SECP_K1_224 1
+#define MBEDTLS_PSA_ACCEL_ECC_SECP_K1_256 1
+#define MBEDTLS_PSA_ACCEL_ECC_SECP_R1_192 1
+#define MBEDTLS_PSA_ACCEL_ECC_SECP_R1_224 1
+#define MBEDTLS_PSA_ACCEL_ECC_SECP_R1_256 1
+#define MBEDTLS_PSA_ACCEL_ECC_SECP_R1_384 1
+#define MBEDTLS_PSA_ACCEL_ECC_SECP_R1_521 1
+#endif
+
+#define MBEDTLS_PSA_ACCEL_KEY_TYPE_DERIVE 1
+#define MBEDTLS_PSA_ACCEL_KEY_TYPE_HMAC 1
+#define MBEDTLS_PSA_ACCEL_KEY_TYPE_ARC4 1
+#define MBEDTLS_PSA_ACCEL_KEY_TYPE_CHACHA20 1
+#define MBEDTLS_PSA_ACCEL_KEY_TYPE_DES 1
+#define MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_PUBLIC_KEY 1
+#define MBEDTLS_PSA_ACCEL_KEY_TYPE_RAW_DATA 1
+#define MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_PUBLIC_KEY 1