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FindMbedTLS.cmake uses `check_symbol_exists` macro which requires `include(CheckSymbolExists)` before invocation (see https://cmake.org/cmake/help/latest/module/CheckSymbolExists.html). Signed-off-by: Azamat H. Hackimov <azamat.hackimov@gmail.com>
157 lines
5 KiB
CMake
157 lines
5 KiB
CMake
# Once done these will be defined:
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#
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# * MBEDTLS_FOUND
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# * MBEDTLS_INCLUDE_DIRS
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# * MBEDTLS_LIBRARIES
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#
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find_package(PkgConfig QUIET)
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if(PKG_CONFIG_FOUND)
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pkg_check_modules(_MBEDTLS QUIET mbedtls)
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endif()
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if(CMAKE_SIZEOF_VOID_P EQUAL 8)
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set(_lib_suffix 64)
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else()
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set(_lib_suffix 32)
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endif()
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# If we're on MacOS or Linux, please try to statically-link mbedtls.
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if(ENABLE_STATIC_MBEDTLS AND (APPLE OR UNIX))
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set(_MBEDTLS_LIBRARIES libmbedtls.a)
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set(_MBEDCRYPTO_LIBRARIES libmbedcrypto.a)
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set(_MBEDX509_LIBRARIES libmbedx509.a)
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endif()
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find_path(
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MBEDTLS_INCLUDE_DIR
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NAMES mbedtls/ssl.h
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HINTS ENV MBEDTLS_PATH ${MBEDTLS_PATH} ${CMAKE_SOURCE_DIR}/${MBEDTLS_PATH} ${_MBEDTLS_INCLUDE_DIRS}
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PATHS /usr/include /usr/local/include /opt/local/include /sw/include
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PATH_SUFFIXES include)
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find_library(
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MBEDTLS_LIB
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NAMES ${_MBEDTLS_LIBRARIES} mbedtls libmbedtls
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HINTS ENV MBEDTLS_PATH ${MBEDTLS_PATH} ${CMAKE_SOURCE_DIR}/${MBEDTLS_PATH} ${_MBEDTLS_LIBRARY_DIRS}
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PATHS /usr/lib /usr/local/lib /opt/local/lib /sw/lib
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PATH_SUFFIXES
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lib${_lib_suffix}
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lib
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libs${_lib_suffix}
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libs
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bin${_lib_suffix}
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bin
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../lib${_lib_suffix}
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../lib
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../libs${_lib_suffix}
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../libs
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../bin${_lib_suffix}
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../bin)
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find_library(
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MBEDCRYPTO_LIB
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NAMES ${_MBEDCRYPTO_LIBRARIES} mbedcrypto libmbedcrypto
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HINTS ENV MBEDCRYPTO_PATH ${MBEDCRYPTO_PATH} ${CMAKE_SOURCE_DIR}/${MBEDCRYPTO_PATH} ${_MBEDCRYPTO_LIBRARY_DIRS}
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PATHS /usr/lib /usr/local/lib /opt/local/lib /sw/lib
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PATH_SUFFIXES
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lib${_lib_suffix}
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lib
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libs${_lib_suffix}
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libs
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bin${_lib_suffix}
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bin
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../lib${_lib_suffix}
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../lib
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../libs${_lib_suffix}
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../libs
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../bin${_lib_suffix}
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../bin)
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find_library(
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MBEDX509_LIB
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NAMES ${_MBEDX509_LIBRARIES} mbedx509 libmbedx509
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HINTS ENV MBEDX509_PATH ${MBEDX509_PATH} ${CMAKE_SOURCE_DIR}/${MBEDX509_PATH} ${_MBEDX509_LIBRARY_DIRS}
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PATHS /usr/lib /usr/local/lib /opt/local/lib /sw/lib
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PATH_SUFFIXES
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lib${_lib_suffix}
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lib
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libs${_lib_suffix}
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libs
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bin${_lib_suffix}
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bin
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../lib${_lib_suffix}
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../lib
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../libs${_lib_suffix}
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../libs
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../bin${_lib_suffix}
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../bin)
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# Sometimes mbedtls is split between three libs, and sometimes it isn't. If it isn't, let's check if the symbols we need
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# are all in MBEDTLS_LIB.
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if(MBEDTLS_LIB
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AND NOT MBEDCRYPTO_LIB
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AND NOT MBEDX509_LIB)
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set(CMAKE_REQUIRED_LIBRARIES ${MBEDTLS_LIB})
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set(CMAKE_REQUIRED_INCLUDES ${MBEDTLS_INCLUDE_DIR})
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include(CheckSymbolExists)
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check_symbol_exists(mbedtls_x509_crt_init "mbedtls/x509_crt.h" MBEDTLS_INCLUDES_X509)
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check_symbol_exists(mbedtls_sha256_init "mbedtls/sha256.h" MBEDTLS_INCLUDES_CRYPTO)
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unset(CMAKE_REQUIRED_INCLUDES)
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unset(CMAKE_REQUIRED_LIBRARIES)
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endif()
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# If we find all three libraries, then go ahead.
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if(MBEDTLS_LIB
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AND MBEDCRYPTO_LIB
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AND MBEDX509_LIB)
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set(MBEDTLS_INCLUDE_DIRS ${MBEDTLS_INCLUDE_DIR})
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set(MBEDTLS_LIBRARIES ${MBEDTLS_LIB} ${MBEDCRYPTO_LIB} ${MBEDX509_LIB})
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foreach(component TLS CRYPTO X509)
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if(NOT TARGET Mbedtls::${component} AND MBED${component}_LIB)
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if(IS_ABSOLUTE "${MBED${component}_LIB}")
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add_library(Mbedtls::${component} UNKNOWN IMPORTED)
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set_target_properties(Mbedtls::${component} PROPERTIES IMPORTED_LOCATION "${MBED${component}_LIB}")
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else()
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add_library(Mbedtls::${component} INTERFACE IMPORTED)
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set_target_properties(Mbedtls::${component} PROPERTIES IMPORTED_LIBNAME "${MBED${component}_LIB}")
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endif()
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set_target_properties(Mbedtls::${component} PROPERTIES INTERFACE_INCLUDE_DIRECTORIES
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"${MBED${component}_INCLUDE_DIR}")
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endif()
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endforeach()
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if(NOT TARGET Mbedtls::Mbedtls)
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add_library(Mbedtls::Mbedtls INTERFACE IMPORTED)
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target_link_libraries(Mbedtls::Mbedtls INTERFACE Mbedtls::TLS Mbedtls::CRYPTO Mbedtls::X509)
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endif()
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# Otherwise, if we find MBEDTLS_LIB, and it has both CRYPTO and x509 within the single lib (i.e. a windows build
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# environment), then also feel free to go ahead.
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elseif(
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MBEDTLS_LIB
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AND MBEDTLS_INCLUDES_CRYPTO
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AND MBEDTLS_INCLUDES_X509)
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set(MBEDTLS_INCLUDE_DIRS ${MBEDTLS_INCLUDE_DIR})
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set(MBEDTLS_LIBRARIES ${MBEDTLS_LIB})
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if(NOT TARGET Mbedtls::Mbedtls)
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if(IS_ABSOLUTE "${MBED${component}_LIB}")
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add_library(Mbedtls::${component} UNKNOWN IMPORTED)
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set_target_properties(Mbedtls::${component} PROPERTIES IMPORTED_LOCATION "${MBEDTLS_LIBRARIES}")
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else()
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add_library(Mbedtls::${component} INTERFACE IMPORTED)
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set_target_properties(Mbedtls::${component} PROPERTIES IMPORTED_LIBNAME "${MBEDTLS_LIBRARIES}")
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endif()
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set_target_properties(Mbedtls::${component} PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${MBEDTLS_INCLUDE_DIRS}")
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endif()
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endif()
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# Now we've accounted for the 3-vs-1 library case:
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(MbedTLS DEFAULT_MSG MBEDTLS_LIBRARIES MBEDTLS_INCLUDE_DIRS)
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mark_as_advanced(MBEDTLS_INCLUDE_DIR MBEDTLS_LIB MBEDCRYPTO_LIB MBEDX509_LIB)
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