From 8218777d44ab30c8a5e2d5d637a62f924c83b65c Mon Sep 17 00:00:00 2001 From: Jesse Fang Date: Tue, 14 Jan 2020 12:18:27 +0800 Subject: [PATCH] mbed TLS cmake support FindMbedTLS.cmake is come from https://github.com/AVSystem/avs_commons/blob/master/cmake/FindMbedTLS.cmake, which is licensed under Apache 2.0 alternatives: https://github.com/curl/curl/blob/master/CMake/FindMbedTLS.cmake without variable MBEDTLS_ROOT_DIR https://github.com/libgit2/libgit2/blob/master/cmake/Modules/FindmbedTLS.cmake GPLv2 with a special Linking Exception --- CMakeLists.txt | 24 ++++++ cmake/FindMbedTLS.cmake | 159 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 183 insertions(+) create mode 100644 cmake/FindMbedTLS.cmake diff --git a/CMakeLists.txt b/CMakeLists.txt index 960e2e1e..f3072aa4 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -132,6 +132,9 @@ option(EVENT__DISABLE_THREAD_SUPPORT option(EVENT__DISABLE_OPENSSL "Define if libevent should build without support for OpenSSL encryption" OFF) +option(EVENT__DISABLE_MBEDTLS + "Define if libevent should build without support for mbed TLS encryption" OFF) + option(EVENT__DISABLE_BENCHMARK "Defines if libevent should build without the benchmark executables" OFF) @@ -866,6 +869,21 @@ if (NOT EVENT__DISABLE_OPENSSL) list(APPEND LIB_APPS ${OPENSSL_LIBRARIES}) endif() +if (NOT EVENT__DISABLE_MBEDTLS) + find_package(MbedTLS REQUIRED) + + set(EVENT__HAVE_MBEDTLS 1) + + message(STATUS "mbed TLS include: ${MBEDTLS_INCLUDE_DIR}") + message(STATUS "mbed TLS lib: ${MBEDTLS_LIBRARIES}") + + include_directories(${MBEDTLS_INCLUDE_DIR}) + + list(APPEND SRC_MBEDTLS bufferevent_mbedtls.c) + list(APPEND HDR_PUBLIC include/event2/bufferevent_ssl.h) + list(APPEND LIB_APPS ${MBEDTLS_LIBRARIES}) +endif() + if (NOT EVENT__DISABLE_THREAD_SUPPORT) if (WIN32) list(APPEND SRC_CORE evthread_win32.c) @@ -971,6 +989,12 @@ if (NOT EVENT__DISABLE_OPENSSL) SOURCES ${SRC_OPENSSL}) endif() +if (NOT EVENT__DISABLE_MBEDTLS) + add_event_library(event_mbedtls + LIBRARIES event_core_shared ${MBEDTLS_LIBRARIES} + SOURCES ${SRC_MBEDTLS}) +endif() + if (EVENT__HAVE_PTHREADS) set(SRC_PTHREADS evthread_pthread.c) add_event_library(event_pthreads diff --git a/cmake/FindMbedTLS.cmake b/cmake/FindMbedTLS.cmake new file mode 100644 index 00000000..d82baa41 --- /dev/null +++ b/cmake/FindMbedTLS.cmake @@ -0,0 +1,159 @@ +# Copyright 2017-2019 AVSystem +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +#.rst: +# FindMbedTLS +# ----------- +# +# Find the mbedTLS encryption library. +# +# Imported Targets +# ^^^^^^^^^^^^^^^^ +# +# This module defines the following :prop_tgt:`IMPORTED` targets: +# +# ``mbedtls`` +# The mbedTLS ``mbedtls`` library, if found. +# ``mbedcrypto`` +# The mbedtls ``crypto`` library, if found. +# ``mbedx509`` +# The mbedtls ``x509`` library, if found. +# +# Result Variables +# ^^^^^^^^^^^^^^^^ +# +# This module will set the following variables in your project: +# +# ``MBEDTLS_FOUND`` +# System has the mbedTLS library. +# ``MBEDTLS_INCLUDE_DIR`` +# The mbedTLS include directory. +# ``MBEDTLS_LIBRARY`` +# The mbedTLS SSL library. +# ``MBEDTLS_CRYPTO_LIBRARY`` +# The mbedTLS crypto library. +# ``MBEDTLS_X509_LIBRARY`` +# The mbedTLS x509 library. +# ``MBEDTLS_LIBRARIES`` +# All mbedTLS libraries. +# ``MBEDTLS_VERSION`` +# This is set to ``$major.$minor.$patch``. +# ``MBEDTLS_VERSION_MAJOR`` +# Set to major mbedTLS version number. +# ``MBEDTLS_VERSION_MINOR`` +# Set to minor mbedTLS version number. +# ``MBEDTLS_VERSION_PATCH`` +# Set to patch mbedTLS version number. +# +# Hints +# ^^^^^ +# +# Set ``MBEDTLS_ROOT_DIR`` to the root directory of an mbedTLS installation. +# Set ``MBEDTLS_USE_STATIC_LIBS`` to ``TRUE`` to look for static libraries. + +if(MBEDTLS_ROOT_DIR) + # Disable re-rooting paths in find_path/find_library. + # This assumes MBEDTLS_ROOT_DIR is an absolute path. + set(_EXTRA_FIND_ARGS "NO_CMAKE_FIND_ROOT_PATH") +endif() + +find_path(MBEDTLS_INCLUDE_DIR + NAMES mbedtls/ssl.h + PATH_SUFFIXES include + HINTS ${MBEDTLS_ROOT_DIR} + ${_EXTRA_FIND_ARGS}) + +# based on https://github.com/ARMmbed/mbedtls/issues/298 +if(MBEDTLS_INCLUDE_DIR AND EXISTS "${MBEDTLS_INCLUDE_DIR}/mbedtls/version.h") + file(STRINGS "${MBEDTLS_INCLUDE_DIR}/mbedtls/version.h" VERSION_STRING_LINE REGEX "^#define MBEDTLS_VERSION_STRING[ \\t\\n\\r]+\"[^\"]*\"$") + file(STRINGS "${MBEDTLS_INCLUDE_DIR}/mbedtls/version.h" VERSION_MAJOR_LINE REGEX "^#define MBEDTLS_VERSION_MAJOR[ \\t\\n\\r]+[0-9]+$") + file(STRINGS "${MBEDTLS_INCLUDE_DIR}/mbedtls/version.h" VERSION_MINOR_LINE REGEX "^#define MBEDTLS_VERSION_MINOR[ \\t\\n\\r]+[0-9]+$") + file(STRINGS "${MBEDTLS_INCLUDE_DIR}/mbedtls/version.h" VERSION_PATCH_LINE REGEX "^#define MBEDTLS_VERSION_PATCH[ \\t\\n\\r]+[0-9]+$") + + string(REGEX REPLACE "^#define MBEDTLS_VERSION_STRING[ \\t\\n\\r]+\"([^\"]*)\"$" "\\1" MBEDTLS_VERSION "${VERSION_STRING_LINE}") + string(REGEX REPLACE "^#define MBEDTLS_VERSION_MAJOR[ \\t\\n\\r]+([0-9]+)$" "\\1" MBEDTLS_VERSION_MAJOR "${VERSION_MAJOR_LINE}") + string(REGEX REPLACE "^#define MBEDTLS_VERSION_MINOR[ \\t\\n\\r]+([0-9]+)$" "\\1" MBEDTLS_VERSION_MINOR "${VERSION_MINOR_LINE}") + string(REGEX REPLACE "^#define MBEDTLS_VERSION_PATCH[ \\t\\n\\r]+([0-9]+)$" "\\1" MBEDTLS_VERSION_PATCH "${VERSION_PATCH_LINE}") +endif() + + +if(MBEDTLS_USE_STATIC_LIBS) + set(_MBEDTLS_LIB_NAME libmbedtls.a) + set(_MBEDTLS_CRYPTO_LIB_NAME libmbedcrypto.a) + set(_MBEDTLS_X509_LIB_NAME libmbedx509.a) +else() + set(_MBEDTLS_LIB_NAME mbedtls) + set(_MBEDTLS_CRYPTO_LIB_NAME mbedcrypto) + set(_MBEDTLS_X509_LIB_NAME mbedx509) +endif() + +find_library(MBEDTLS_LIBRARY + NAMES ${_MBEDTLS_LIB_NAME} + PATH_SUFFIXES lib + HINTS ${MBEDTLS_ROOT_DIR} + ${_EXTRA_FIND_ARGS}) + +find_library(MBEDTLS_CRYPTO_LIBRARY + NAMES ${_MBEDTLS_CRYPTO_LIB_NAME} + PATH_SUFFIXES lib + HINTS ${MBEDTLS_ROOT_DIR} + ${_EXTRA_FIND_ARGS}) + +find_library(MBEDTLS_X509_LIBRARY + NAMES ${_MBEDTLS_X509_LIB_NAME} + PATH_SUFFIXES lib + HINTS ${MBEDTLS_ROOT_DIR} + ${_EXTRA_FIND_ARGS}) + +set(MBEDTLS_LIBRARIES ${MBEDTLS_LIBRARY} ${MBEDTLS_CRYPTO_LIBRARY} ${MBEDTLS_X509_LIBRARY}) + +if(MBEDTLS_INCLUDE_DIR) + set(MBEDTLS_FOUND TRUE) +endif() + + +include(FindPackageHandleStandardArgs) +find_package_handle_standard_args(mbedTLS + FOUND_VAR MBEDTLS_FOUND + REQUIRED_VARS + MBEDTLS_INCLUDE_DIR + MBEDTLS_LIBRARY + MBEDTLS_CRYPTO_LIBRARY + MBEDTLS_X509_LIBRARY + MBEDTLS_LIBRARIES + MBEDTLS_VERSION + VERSION_VAR MBEDTLS_VERSION) + + +if(NOT TARGET mbedtls) + add_library(mbedtls UNKNOWN IMPORTED) + set_target_properties(mbedtls PROPERTIES + INTERFACE_INCLUDE_DIRECTORIES "${MBEDTLS_INCLUDE_DIR}" + IMPORTED_LINK_INTERFACE_LANGUAGES "C" + IMPORTED_LOCATION "${MBEDTLS_LIBRARY}") +endif() + +if(NOT TARGET mbedcrypto) + add_library(mbedcrypto UNKNOWN IMPORTED) + set_target_properties(mbedcrypto PROPERTIES + IMPORTED_LINK_INTERFACE_LANGUAGES "C" + IMPORTED_LOCATION "${MBEDTLS_CRYPTO_LIBRARY}") +endif() + +if(NOT TARGET mbedx509) + add_library(mbedx509 UNKNOWN IMPORTED) + set_target_properties(mbedx509 PROPERTIES + IMPORTED_LINK_INTERFACE_LANGUAGES "C" + IMPORTED_LOCATION "${MBEDTLS_X509_LIBRARY}") +endif() -- 2.40.0