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+############################################################################
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+# FindMdebTLS.txt
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+# Copyright (C) 2015 Belledonne Communications, Grenoble France
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+#
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+############################################################################
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+#
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+# This program is free software; you can redistribute it and/or
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+# modify it under the terms of the GNU General Public License
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+# as published by the Free Software Foundation; either version 2
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+# of the License, or (at your option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program; if not, write to the Free Software
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+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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+#
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+############################################################################
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+#
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+# - Find the mbedTLS include file and library
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+#
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+# MBEDTLS_FOUND - system has mbedTLS
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+# MBEDTLS_INCLUDE_DIRS - the mbedTLS include directory
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+# MBEDTLS_LIBRARIES - The libraries needed to use mbedTLS
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+
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+include(CMakePushCheckState)
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+include(CheckIncludeFile)
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+include(CheckCSourceCompiles)
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+include(CheckSymbolExists)
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+
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+
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+find_path(MBEDTLS_INCLUDE_DIRS
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+ NAMES mbedtls/ssl.h
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+ PATH_SUFFIXES include
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+)
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+
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+# find the three mbedtls library
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+find_library(MBEDTLS_LIBRARY
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+ NAMES mbedtls
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+)
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+
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+find_library(MBEDX509_LIBRARY
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+ NAMES mbedx509
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+)
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+
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+find_library(MBEDCRYPTO_LIBRARY
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+ NAMES mbedcrypto
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+)
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+
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+cmake_push_check_state(RESET)
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+set(CMAKE_REQUIRED_INCLUDES ${MBEDTLS_INCLUDE_DIRS} ${CMAKE_REQUIRED_INCLUDES_${BUILD_TYPE}})
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+list(APPEND CMAKE_REQUIRED_LIBRARIES ${MBEDTLS_LIBRARY} ${MBEDX509_LIBRARY} ${MBEDCRYPTO_LIBRARY})
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+
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+# check we have a mbedTLS version 2 or above(all functions are prefixed mbedtls_)
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+if(MBEDTLS_LIBRARY AND MBEDX509_LIBRARY AND MBEDCRYPTO_LIBRARY)
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+ check_symbol_exists(mbedtls_ssl_init "mbedtls/ssl.h" MBEDTLS_V2)
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+ if(NOT MBEDTLS_V2)
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+ message ("MESSAGE: NO MBEDTLS_V2")
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+ message ("MESSAGE: MBEDTLS_LIBRARY=" ${MBEDTLS_LIBRARY})
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+ message ("MESSAGE: MBEDX509_LIBRARY=" ${MBEDX509_LIBRARY})
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+ message ("MESSAGE: MBEDCRYPTO_LIBRARY=" ${MBEDCRYPTO_LIBRARY})
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+ set (MBEDTLS_VERSION_1 On)
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+ else()
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+ # Are we mbdetls 2 or 3?
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+ # from version 3 and on, version number is given in include/mbedtls/build_info.h.
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+ # This file does not exists before version 3
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+ if (EXISTS "${MBEDTLS_INCLUDE_DIRS}/mbedtls/build_info.h")
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+ set (MBEDTLS_VERSION_3 On)
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+ else()
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+ set (MBEDTLS_VERSION_2 On)
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+ endif()
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+ endif()
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+
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+endif()
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+
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+check_symbol_exists(mbedtls_ssl_conf_dtls_srtp_protection_profiles "mbedtls/ssl.h" DTLS_SRTP_AVAILABLE)
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+
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+# Define the imported target for the three mbedtls libraries
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+foreach(targetname "mbedtls" "mbedx509" "mbedcrypto")
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+ string(TOUPPER ${targetname} varprefix)
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+ add_library(${targetname} SHARED IMPORTED)
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+ if (WIN32)
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+ set_target_properties(${targetname} PROPERTIES
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+ INTERFACE_INCLUDE_DIRECTORIES "${${varprefix}_INCLUDE_DIRS}"
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+ IMPORTED_IMPLIB "${${varprefix}_LIBRARY}"
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+ )
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+ else()
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+ set_target_properties(${targetname} PROPERTIES
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+ INTERFACE_INCLUDE_DIRECTORIES "${${varprefix}_INCLUDE_DIRS}"
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+ IMPORTED_LOCATION "${${varprefix}_LIBRARY}"
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+ )
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+ endif()
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+endforeach()
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+unset(varprefix)
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+
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+# MBEDTLS_LIBRARIES only needs to contain the name of the targets
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+set (MBEDTLS_LIBRARIES
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+ mbedtls
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+ mbedx509
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+ mbedcrypto
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+)
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+
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+
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+include(FindPackageHandleStandardArgs)
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+find_package_handle_standard_args(MbedTLS
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+ DEFAULT_MSG
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+ MBEDTLS_INCLUDE_DIRS MBEDTLS_LIBRARIES
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+)
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+
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+cmake_pop_check_state()
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+
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+
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+
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+mark_as_advanced(MBEDTLS_INCLUDE_DIRS MBEDTLS_LIBRARIES DTLS_SRTP_AVAILABLE)
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