crypto: Add an Mbed Crypto exporter script

Create a tarball-based ditribution of the Mbed Crypto source code using the
code from Mbed TLS. Only export the files needed by Mbed Crypto to
implement the PSA Crypto API. Rename "mbedtls_*" and "MBEDTLS_*" symbols to
"mbedcrypto_*" and "MBEDCRYPTO_*".

The exported distribution can stand alone, without any Mbed TLS repository
needing to be present. "make test" will continue to work as before and will
run only the PSA Crypto test suite.

scripts/mbed_crypto.make

@@ -0,0 +1,226 @@
+###########################################################################
+#
+#  Copyright (c) 2018, ARM Limited, All Rights Reserved
+#  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.
+#
+###########################################################################
+
+#
+# Use this file to export an Mbed Crypto release tarball as follows, from the
+# top level of the mbedtls repo:
+#
+#   1) make -f scripts/mbed_crypto.make
+#
+
+.PHONY: all clean FORCE
+
+all: mbedcrypto.tar.gz
+
+#
+# Crypto-necessary library files
+#
+LIB_FILES := \
+	aes.c \
+	aesni.c \
+	arc4.c \
+	asn1parse.c \
+	asn1write.c \
+	base64.c \
+	bignum.c \
+	blowfish.c \
+	camellia.c \
+	ccm.c \
+	cipher.c \
+	cipher_wrap.c \
+	cmac.c \
+	ctr_drbg.c \
+	des.c \
+	ecdsa.c \
+	ecp.c \
+	ecp_curves.c \
+	entropy.c \
+	entropy_poll.c \
+	gcm.c \
+	hmac_drbg.c \
+	md.c \
+	md2.c \
+	md4.c \
+	md5.c \
+	md_wrap.c \
+	oid.c \
+	pem.c \
+	pk.c \
+	pk_wrap.c \
+	pkcs12.c \
+	pkcs5.c \
+	pkparse.c \
+	pkwrite.c \
+	platform.c \
+	platform_util.c \
+	psa_crypto.c \
+	ripemd160.c \
+	rsa_internal.c \
+	rsa.c \
+	sha1.c \
+	sha256.c \
+	sha512.c \
+	xtea.c \
+# Don't delete this line.
+
+#
+# Crypto-necessary include files
+#
+INC_FILES := \
+	mbedcrypto/aes.h \
+	mbedcrypto/aesni.h \
+	mbedcrypto/arc4.h \
+	mbedcrypto/asn1.h \
+	mbedcrypto/asn1write.h \
+	mbedcrypto/base64.h \
+	mbedcrypto/bignum.h \
+	mbedcrypto/blowfish.h \
+	mbedcrypto/bn_mul.h \
+	mbedcrypto/camellia.h \
+	mbedcrypto/ccm.h \
+	mbedcrypto/certs.h \
+	mbedcrypto/check_config.h \
+	mbedcrypto/cipher.h \
+	mbedcrypto/cipher_internal.h \
+	mbedcrypto/cmac.h \
+	mbedcrypto/config.h \
+	mbedcrypto/ctr_drbg.h \
+	mbedcrypto/des.h \
+	mbedcrypto/ecdsa.h \
+	mbedcrypto/ecp.h \
+	mbedcrypto/ecp_internal.h \
+	mbedcrypto/entropy.h \
+	mbedcrypto/entropy_poll.h \
+	mbedcrypto/error.h \
+	mbedcrypto/gcm.h \
+	mbedcrypto/hmac_drbg.h \
+	mbedcrypto/md.h \
+	mbedcrypto/md2.h \
+	mbedcrypto/md4.h \
+	mbedcrypto/md5.h \
+	mbedcrypto/md_internal.h \
+	mbedcrypto/oid.h \
+	mbedcrypto/pem.h \
+	mbedcrypto/pk.h \
+	mbedcrypto/pk_internal.h \
+	mbedcrypto/pkcs11.h \
+	mbedcrypto/pkcs12.h \
+	mbedcrypto/pkcs5.h \
+	mbedcrypto/platform.h \
+	mbedcrypto/platform_util.h \
+	mbedcrypto/ripemd160.h \
+	mbedcrypto/rsa.h \
+	mbedcrypto/rsa_internal.h \
+	mbedcrypto/sha1.h \
+	mbedcrypto/sha256.h \
+	mbedcrypto/sha512.h \
+	mbedcrypto/threading.h \
+	mbedcrypto/xtea.h \
+	psa/crypto.h \
+	psa/crypto_extra.h \
+	psa/crypto_platform.h \
+	psa/crypto_sizes.h \
+	psa/crypto_struct.h \
+# Don't delete this line.
+
+TEST_FILES := \
+	tests/scripts/generate_test_code.py \
+	tests/scripts/mbedtls_test.py \
+	tests/scripts/test_generate_test_code.py \
+	tests/scripts/run-test-suites.pl \
+	tests/suites/helpers.function \
+	tests/suites/host_test.function \
+	tests/suites/main_test.function \
+	tests/suites/target_test.function \
+	tests/suites/test_suite_psa_crypto.data \
+	tests/suites/test_suite_psa_crypto.function \
+# Don't delete this line.
+
+OTHER_FILES := \
+	LICENSE \
+	VERSION.txt \
+	programs/psa/crypto_examples.c \
+	programs/psa/key_ladder_demo.c \
+	programs/psa/psa_constant_names.c \
+	scripts/config.pl \
+	scripts/generate_psa_constants.py \
+# Don't delete this line.
+
+# Prepend destination directory
+LIB_FILES := $(addprefix crypto/library/,$(LIB_FILES))
+INC_FILES := $(addprefix crypto/include/,$(INC_FILES))
+TEST_FILES := $(addprefix crypto/,$(TEST_FILES))
+OTHER_FILES := $(addprefix crypto/,$(OTHER_FILES))
+
+define rename_mbedcrypto
+	@sed -i -e 's/Mbed TLS/Mbed Crypto/g' $(1)
+	@sed -i -e 's/mbed TLS/Mbed Crypto/g' $(1)
+	@sed -i -e 's/MBEDTLS_/MBEDCRYPTO_/g' $(1)
+	@sed -i -e 's/mbedtls/mbedcrypto/g' $(1)
+	@sed -i -e 's/MbedTls/MbedCrypto/g' $(1)
+	@sed -i -e 's/include\/mbedtls/include\/mbedcrypto/g' $(1)
+endef
+
+crypto/include/mbedcrypto/config.h: configs/config-psa-crypto.h
+	@echo $@
+	@mkdir -p $(dir $@)
+	@cp $< $@
+	@#Rename the file in the comments
+	@sed -i -e 's/config-psa-crypto.h/config.h/g' $@
+	$(call rename_mbedcrypto,$@)
+
+crypto/tests/data_files/%: tests/data_files/%
+	@echo $@
+	@mkdir -p $(dir $@)
+	@cp $< $@
+	@#Don't rename things inside data files
+
+crypto/include/mbedcrypto/%.h: include/mbedtls/%.h
+	@echo $@
+	@mkdir -p $(dir $@)
+	@cp $< $@
+	$(call rename_mbedcrypto,$@)
+
+crypto/LICENSE: apache-2.0.txt
+	@echo $@
+	@mkdir -p $(dir $@)
+	@cp $< $@
+	@#Don't rename anything in the license
+
+crypto/%: %
+	@echo $@
+	@mkdir -p $(dir $@)
+	@cp $< $@
+	$(call rename_mbedcrypto,$@)
+
+crypto/VERSION.txt: FORCE
+	@git describe --tags --abbrev=12 --dirty > $@
+
+mbedcrypto.tar.gz: $(LIB_FILES) $(INC_FILES) $(TEST_FILES) $(OTHER_FILES)
+	@echo $@
+	@tar czf mbedcrypto.tar.gz crypto
+
+clean:
+	@echo clean
+	@rm -rf mbedcrypto.tar.gz \
+		$(LIB_FILES) $(INC_FILES) $(TEST_FILES) $(OTHER_FILES)
+
+FORCE:
+
+# vi: ft=make