idf_build_get_property(idf_target IDF_TARGET) idf_build_get_property(python PYTHON) set(priv_requires soc esp_hw_support) if(NOT BOOTLOADER_BUILD) list(APPEND priv_requires esp_pm) endif() set(mbedtls_srcs "") set(mbedtls_include_dirs "port/include" "mbedtls/include" "./mbedtls/library") if(CONFIG_MBEDTLS_CERTIFICATE_BUNDLE) list(APPEND mbedtls_srcs "esp_crt_bundle/esp_crt_bundle.c") list(APPEND mbedtls_include_dirs "esp_crt_bundle/include") endif() idf_component_register(SRCS "${mbedtls_srcs}" INCLUDE_DIRS "${mbedtls_include_dirs}" PRIV_REQUIRES "${priv_requires}" ) # Determine the type of mbedtls component library if(mbedtls_srcs STREQUAL "") # For no sources in component library we must use "INTERFACE" set(linkage_type INTERFACE) else() set(linkage_type PUBLIC) endif() if(CONFIG_MBEDTLS_CERTIFICATE_BUNDLE) set(bundle_name "x509_crt_bundle") set(DEFAULT_CRT_DIR ${COMPONENT_DIR}/esp_crt_bundle) # Generate custom certificate bundle using the generate_cert_bundle utility set(GENERATE_CERT_BUNDLEPY ${python} ${COMPONENT_DIR}/esp_crt_bundle/gen_crt_bundle.py) if(CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_FULL) list(APPEND crt_paths ${DEFAULT_CRT_DIR}/cacrt_all.pem ${DEFAULT_CRT_DIR}/cacrt_local.pem) elseif(CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_CMN) list(APPEND crt_paths ${DEFAULT_CRT_DIR}/cacrt_all.pem ${DEFAULT_CRT_DIR}/cacrt_local.pem) list(APPEND args --filter ${DEFAULT_CRT_DIR}/cmn_crt_authorities.csv) endif() if(CONFIG_MBEDTLS_CUSTOM_CERTIFICATE_BUNDLE) get_filename_component(custom_bundle_path ${CONFIG_MBEDTLS_CUSTOM_CERTIFICATE_BUNDLE_PATH} ABSOLUTE BASE_DIR "${project_dir}") list(APPEND crt_paths ${custom_bundle_path}) endif() list(APPEND args --input ${crt_paths} -q) get_filename_component(crt_bundle ${bundle_name} ABSOLUTE BASE_DIR "${CMAKE_CURRENT_BINARY_DIR}") # Generate bundle according to config add_custom_command(OUTPUT ${crt_bundle} COMMAND ${GENERATE_CERT_BUNDLEPY} ${args} DEPENDS ${custom_bundle_path} VERBATIM) add_custom_target(custom_bundle DEPENDS ${cert_bundle}) add_dependencies(${COMPONENT_LIB} custom_bundle) target_add_binary_data(${COMPONENT_LIB} ${crt_bundle} BINARY) set_property(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES "${crt_bundle}") endif() # Only build mbedtls libraries set(ENABLE_TESTING CACHE BOOL OFF) set(ENABLE_PROGRAMS CACHE BOOL OFF) # Use pre-generated source files in mbedtls repository set(GEN_FILES CACHE BOOL OFF) # Make sure mbedtls finds the same Python interpreter as IDF uses idf_build_get_property(python PYTHON) set(Python3_EXECUTABLE ${python}) # Needed to for include_next includes to work from within mbedtls include_directories("${COMPONENT_DIR}/port/include") # Import mbedtls library targets add_subdirectory(mbedtls) # Use port specific implementation of net_socket.c instead of one from mbedtls get_target_property(src_tls mbedtls SOURCES) list(REMOVE_ITEM src_tls net_sockets.c) set_property(TARGET mbedtls PROPERTY SOURCES ${src_tls}) if(CONFIG_MBEDTLS_SSL_PROTO_GMTSSL1_1) get_target_property(src_tls mbedtls SOURCES) list(REMOVE_ITEM src_tls ssl_ciphersuites.c ssl_cli.c ssl_tls.c) set_property(TARGET mbedtls PROPERTY SOURCES ${src_tls}) get_target_property(src_crypto mbedcrypto SOURCES) list(REMOVE_ITEM src_crypto cipher_wrap.c ecdsa.c ecp.c ecp_curves.c oid.c pk_wrap.c) set_property(TARGET mbedcrypto PROPERTY SOURCES ${src_crypto}) get_target_property(src_x509 mbedx509 SOURCES) list(REMOVE_ITEM src_x509 x509_crt.c) set_property(TARGET mbedx509 PROPERTY SOURCES ${src_x509}) endif() set(mbedtls_targets mbedtls mbedcrypto mbedx509) set(mbedtls_target_sources "${COMPONENT_DIR}/port/mbedtls_debug.c") if(CONFIG_MBEDTLS_DYNAMIC_BUFFER) set(mbedtls_target_sources ${mbedtls_target_sources} "${COMPONENT_DIR}/port/dynamic/esp_mbedtls_dynamic_impl.c" "${COMPONENT_DIR}/port/dynamic/esp_ssl_cli.c" "${COMPONENT_DIR}/port/dynamic/esp_ssl_srv.c" "${COMPONENT_DIR}/port/dynamic/esp_ssl_tls.c") endif() # net_sockets.c should only be compiled if BSD socket functions are available. # Do this by checking if lwip component is included into the build. idf_build_get_property(build_components BUILD_COMPONENTS) if(lwip IN_LIST build_components) list(APPEND mbedtls_target_sources "${COMPONENT_DIR}/port/net_sockets.c") idf_component_get_property(lwip_lib lwip COMPONENT_LIB) target_link_libraries(${COMPONENT_LIB} ${linkage_type} ${lwip_lib}) endif() # Add port files to mbedtls targets target_sources(mbedtls PRIVATE ${mbedtls_target_sources}) # Choose perihperal type if(CONFIG_SOC_SHA_SUPPORTED) if(CONFIG_SOC_SHA_SUPPORT_DMA) set(SHA_PERIPHERAL_TYPE "dma") elseif(CONFIG_SOC_SHA_SUPPORT_PARALLEL_ENG) set(SHA_PERIPHERAL_TYPE "parallel_engine") else() set(SHA_PERIPHERAL_TYPE "block") endif() endif() if(CONFIG_SOC_AES_SUPPORTED) if(CONFIG_SOC_AES_SUPPORT_DMA) set(AES_PERIPHERAL_TYPE "dma") else() set(AES_PERIPHERAL_TYPE "block") endif() endif() if(SHA_PERIPHERAL_TYPE STREQUAL "dma") target_include_directories(mbedcrypto PRIVATE "${COMPONENT_DIR}/port/sha/dma/include") if(NOT CONFIG_SOC_SHA_GDMA) set(SHA_DMA_SRCS "${COMPONENT_DIR}/port/sha/dma/esp_sha_crypto_dma_impl.c") else() set(SHA_DMA_SRCS "${COMPONENT_DIR}/port/sha/dma/esp_sha_gdma_impl.c") endif() target_sources(mbedcrypto PRIVATE "${SHA_DMA_SRCS}") endif() if(AES_PERIPHERAL_TYPE STREQUAL "dma") if(NOT CONFIG_SOC_AES_GDMA) set(AES_DMA_SRCS "${COMPONENT_DIR}/port/aes/dma/esp_aes_crypto_dma_impl.c") else() set(AES_DMA_SRCS "${COMPONENT_DIR}/port/aes/dma/esp_aes_gdma_impl.c" "${COMPONENT_DIR}/port/crypto_shared_gdma/esp_crypto_shared_gdma.c") endif() target_include_directories(mbedcrypto PRIVATE "${COMPONENT_DIR}/port/aes/dma/include") target_sources(mbedcrypto PRIVATE "${AES_DMA_SRCS}") endif() target_sources(mbedcrypto PRIVATE "${COMPONENT_DIR}/port/esp_hardware.c" "${COMPONENT_DIR}/port/esp_mem.c" "${COMPONENT_DIR}/port/esp_timing.c" "${COMPONENT_DIR}/port/sha/esp_sha.c" ) if(CONFIG_SOC_AES_SUPPORTED) target_sources(mbedcrypto PRIVATE "${COMPONENT_DIR}/port/aes/esp_aes_xts.c" "${COMPONENT_DIR}/port/aes/esp_aes_common.c" "${COMPONENT_DIR}/port/aes/${AES_PERIPHERAL_TYPE}/esp_aes.c" ) endif() if(CONFIG_SOC_SHA_SUPPORTED) target_sources(mbedcrypto PRIVATE "${COMPONENT_DIR}/port/sha/${SHA_PERIPHERAL_TYPE}/sha.c") endif() # CONFIG_ESP_TLS_USE_DS_PERIPHERAL can be enabled only for the supported targets. if(CONFIG_ESP_TLS_USE_DS_PERIPHERAL) target_sources(mbedcrypto PRIVATE "${COMPONENT_DIR}/port/esp_ds/esp_rsa_sign_alt.c") endif() # Note: some mbedTLS hardware acceleration can be enabled/disabled by config. # # We don't need to filter aes.c as this uses a different prefix (esp_aes_x) and the # config option only changes the prefixes in the header so mbedtls_aes_x compiles to esp_aes_x # # The other port-specific files don't override internal mbedTLS functions, they just add new functions. if(CONFIG_MBEDTLS_HARDWARE_MPI) target_sources(mbedcrypto PRIVATE "${COMPONENT_DIR}/port/esp_bignum.c" "${COMPONENT_DIR}/port/${idf_target}/bignum.c" ) endif() if(CONFIG_MBEDTLS_HARDWARE_SHA) target_sources(mbedcrypto PRIVATE "${COMPONENT_DIR}/port/sha/${SHA_PERIPHERAL_TYPE}/esp_sha1.c" "${COMPONENT_DIR}/port/sha/${SHA_PERIPHERAL_TYPE}/esp_sha256.c" "${COMPONENT_DIR}/port/sha/${SHA_PERIPHERAL_TYPE}/esp_sha512.c" ) endif() if(CONFIG_MBEDTLS_HARDWARE_GCM) target_sources(mbedcrypto PRIVATE "${COMPONENT_DIR}/port/aes/esp_aes_gcm.c") endif() if(CONFIG_MBEDTLS_HARDWARE_ECC) target_sources(mbedcrypto PRIVATE "${COMPONENT_DIR}/port/ecc/esp_ecc.c" "${COMPONENT_DIR}/port/ecc/ecc_alt.c") endif() if(CONFIG_MBEDTLS_ROM_MD5) target_sources(mbedcrypto PRIVATE "${COMPONENT_DIR}/port/md/esp_md.c") endif() foreach(target ${mbedtls_targets}) target_compile_definitions(${target} PUBLIC -DMBEDTLS_CONFIG_FILE="mbedtls/esp_config.h") endforeach() if(CONFIG_MBEDTLS_DYNAMIC_BUFFER) set(WRAP_FUNCTIONS mbedtls_ssl_handshake_client_step mbedtls_ssl_handshake_server_step mbedtls_ssl_read mbedtls_ssl_write mbedtls_ssl_session_reset mbedtls_ssl_free mbedtls_ssl_setup mbedtls_ssl_send_alert_message mbedtls_ssl_close_notify) foreach(wrap ${WRAP_FUNCTIONS}) target_link_libraries(${COMPONENT_LIB} INTERFACE "-Wl,--wrap=${wrap}") endforeach() endif() set_property(TARGET mbedcrypto APPEND PROPERTY LINK_INTERFACE_LIBRARIES mbedtls) set_property(TARGET mbedcrypto APPEND PROPERTY LINK_LIBRARIES idf::driver) set_property(TARGET mbedcrypto APPEND PROPERTY INTERFACE_LINK_LIBRARIES idf::driver) target_link_libraries(${COMPONENT_LIB} ${linkage_type} ${mbedtls_targets}) if(CONFIG_ESP_TLS_USE_DS_PERIPHERAL) # The linker seems to be unable to resolve all the dependencies without increasing this set_property(TARGET mbedcrypto APPEND PROPERTY LINK_INTERFACE_MULTIPLICITY 6) endif() # Link esp-cryptoauthlib to mbedtls if(CONFIG_ATCA_MBEDTLS_ECDSA) idf_component_get_property(cryptoauthlib esp-cryptoauthlib COMPONENT_LIB) target_link_libraries(${COMPONENT_LIB} ${linkage_type} ${cryptoauthlib}) endif()