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#
# Copyright 2024 Staysail Systems, Inc. <info@staysail.tech>
# Copyright 2017 Capitar IT Group BV <info@capitar.com>
#
# This software is supplied under the terms of the MIT License, a
# copy of which should be located in the distribution where this
# file was obtained (LICENSE.txt). A copy of the license may also be
# found online at https://opensource.org/licenses/MIT.
#
#
# Try to find the Mbed TLS libraries.
# This tries to emulate the same expectations that the stock Mbed TLS
# module uses in Mbed TLS v3.x.
#
# Sets the following:
#
# MbedTLS_FOUND - True if we found Mbed TLS.
# MbedTLS_TARGET - Target of the mbedtls library.
# MbedX509_TARGET - Target of the mbedx509 library.
# MbedCrypto_TARGET - Target of the mbedcrypto library.
# MbedTLS_VERSION - $major.$minor.$revision (e.g. ``2.6.0``).
#
# MBEDTLS_CRYPTO_LIBRARY - The mbedcrypto library.
# MBEDTLS_X509_LIBRARY - The mbedx509 library.
# MBEDTLS_TLS_LIBRARY - The mbedtls library.
# MBEDTLS_LIBRARIES - List of all three Mbed TLS libraries.
#
# Hints:
#
# Set ``MBEDTLS_ROOT`` to the root directory of Mbed TLS installation.
#
set(_MBEDTLS_ROOT_HINTS ${MBEDTLS_ROOT} ENV MBEDTLS_ROOT)
if (NOT _MBEDTLS_ROOT_HINTS)
set(_MBEDTLS_ROOT_HINTS ${MBEDTLS_ROOT_DIR} ENV MBEDTLS_ROOT_DIR)
endif()
set(_MBED_REQUIRED_VARS MbedTLS_TARGET MbedX509_TARGET MbedCrypto_TARGET MbedTLS_VERSION)
include(FindPackageHandleStandardArgs)
include(CMakePushCheckState)
find_path(_MBEDTLS_INCLUDE_DIR
NAMES mbedtls/ssl.h
HINTS ${_MBEDTLS_ROOT_HINTS}
# PATHS /usr/local
PATH_SUFFIXES include)
find_library(_MBEDCRYPTO_LIBRARY
NAMES mbedcrypto
HINTS ${_MBEDTLS_ROOT_HINTS}
# PATHS /usr/local
# PATH_SUFFIXES lib
)
find_library(_MBEDX509_LIBRARY
NAMES mbedx509
HINTS ${_MBEDTLS_ROOT_HINTS}
#PATHS /usr/local
# PATH_SUFFIXES lib
)
find_library(_MBEDTLS_LIBRARY
NAMES mbedtls
HINTS ${_MBEDTLS_ROOT_HINTS}
#PATHS /usr/local
#PATH_SUFFIXES lib
)
if ("${_MBEDTLS_TLS_LIBRARY}" STREQUAL "_MBEDTLS_TLS_LIBRARY-NOTFOUND")
message("Failed to find Mbed TLS library")
else()
cmake_push_check_state(RESET)
set(CMAKE_REQUIRED_INCLUDES ${_MBEDTLS_INCLUDE_DIR} ${CMAKE_REQUIRED_INCLUDES_${BUILD_TYPE}})
list(APPEND CMAKE_REQUIRED_LIBRARIES ${_MBEDTLS_LIBRARY} ${_MBEDX509_LIBRARY} ${_MBEDCRYPTO_LIBRARY})
check_symbol_exists(mbedtls_ssl_init "mbedtls/ssl.h" _MBEDTLS_V2_OR_NEWER)
cmake_pop_check_state()
if (NOT _MBEDTLS_V2_OR_NEWER)
message("Mbed TLS too old (must be version 2 or newer) ${_MBEDTLS_V2_OR_NEWER} UP ${_MbedTLS_V2}")
else()
# Extract the version from the header... hopefully it matches the library.
if (EXISTS ${_MBEDTLS_INCLUDE_DIR}/mbedtls/build_info.h)
file(STRINGS ${_MBEDTLS_INCLUDE_DIR}/mbedtls/build_info.h _MBEDTLS_VERLINE
REGEX "^#define[ \t]+MBEDTLS_VERSION_STRING[\t ].*")
else ()
file(STRINGS ${_MBEDTLS_INCLUDE_DIR}/mbedtls/version.h _MBEDTLS_VERLINE
REGEX "^#define[ \t]+MBEDTLS_VERSION_STRING[\t ].*")
endif ()
string(REGEX REPLACE ".*MBEDTLS_VERSION_STRING[\t ]+\"(.*)\"" "\\1" MbedTLS_VERSION ${_MBEDTLS_VERLINE})
message("Mbed TLS version: ${MbedTLS_VERSION}")
endif()
endif()
add_library(MbedTLS::mbedtls UNKNOWN IMPORTED)
add_library(MbedTLS::mbedx509 UNKNOWN IMPORTED)
add_library(MbedTLS::mbedcrypto UNKNOWN IMPORTED)
set_target_properties(MbedTLS::mbedtls PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${_MBEDTLS_INCLUDE_DIR}")
set_target_properties(MbedTLS::mbedx509 PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${_MBEDTLS_INCLUDE_DIR}")
set_target_properties(MbedTLS::mbedcrypto PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${_MBEDTLS_INCLUDE_DIR}")
set_target_properties(MbedTLS::mbedtls PROPERTIES IMPORTED_LOCATION "${_MBEDTLS_LIBRARY}")
set_target_properties(MbedTLS::mbedx509 PROPERTIES IMPORTED_LOCATION "${_MBEDX509_LIBRARY}")
set_target_properties(MbedTLS::mbedcrypto PROPERTIES IMPORTED_LOCATION "${_MBEDCRYPTO_LIBRARY}")
set(MbedTLS_TARGET MbedTLS::mbedtls)
set(MbedX509_TARGET MbedTLS::mbedx509)
set(MbedCrypto_TARGET MbedTLS::mbedcrypto)
find_package_handle_standard_args(MbedTLS REQUIRED_VARS ${_MBED_REQUIRED_VARS})
mark_as_advanced(${_MBED_REQUIRED_VARS})
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