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CMakeLists.txt
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CMakeLists.txt
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# Copyright (c) 2018 Yubico AB. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# detect AppleClang; needs to come before project()
cmake_policy(SET CMP0025 NEW)
project(libfido2 C)
cmake_minimum_required(VERSION 3.0)
include(CheckCCompilerFlag)
include(CheckFunctionExists)
include(CheckIncludeFiles)
include(CheckTypeSize)
include(GNUInstallDirs)
set(CMAKE_COLOR_MAKEFILE off)
set(CMAKE_VERBOSE_MAKEFILE on)
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
set(FIDO_MAJOR "2")
set(FIDO_MINOR "0")
set(FIDO_PATCH "0")
set(FIDO_VERSION ${FIDO_MAJOR}.${FIDO_MINOR}.${FIDO_PATCH})
add_definitions(-D_FIDO_MAJOR=${FIDO_MAJOR})
add_definitions(-D_FIDO_MINOR=${FIDO_MINOR})
add_definitions(-D_FIDO_PATCH=${FIDO_PATCH})
if(WIN32)
add_definitions(-DWIN32_LEAN_AND_MEAN)
endif()
if(APPLE)
set(CMAKE_INSTALL_NAME_DIR
"${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}")
endif()
# Observe OpenBSD's library versioning scheme.
if(CMAKE_SYSTEM_NAME STREQUAL "OpenBSD")
set(LIB_VERSION ${FIDO_MAJOR}.${FIDO_MINOR})
set(LIB_SOVERSION ${LIB_VERSION})
else()
set(LIB_VERSION ${FIDO_VERSION})
set(LIB_SOVERSION ${FIDO_MAJOR})
endif()
if(MSVC)
if((NOT CBOR_INCLUDE_DIRS) OR (NOT CBOR_LIBRARY_DIRS) OR
(NOT CRYPTO_INCLUDE_DIRS) OR (NOT CRYPTO_LIBRARY_DIRS))
message(FATAL_ERROR "please provide definitions for "
"{CBOR,CRYPTO}_{INCLUDE,LIBRARY}_DIRS when building "
"under msvc")
endif()
set(CBOR_LIBRARIES cbor)
set(CRYPTO_LIBRARIES crypto-45)
set(MSVC_DISABLED_WARNINGS_LIST
"C4200" # nonstandard extension used: zero-sized array in
# struct/union;
"C4204" # nonstandard extension used: non-constant aggregate
# initializer;
"C4706" # assignment within conditional expression;
"C4996" # The POSIX name for this item is deprecated. Instead,
# use the ISO C and C++ conformant name
)
# The construction in the following 3 lines was taken from LibreSSL's
# CMakeLists.txt.
string(REPLACE "C" " -wd" MSVC_DISABLED_WARNINGS_STR
${MSVC_DISABLED_WARNINGS_LIST})
string(REGEX REPLACE "[/-]W[1234][ ]?" "" CMAKE_C_FLAGS ${CMAKE_C_FLAGS})
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -MP -W4 ${MSVC_DISABLED_WARNINGS_STR}")
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /Z7")
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /Zi")
else()
include(FindPkgConfig)
pkg_search_module(CBOR libcbor)
pkg_search_module(CRYPTO libcrypto)
# XXX workaround libcbor's missing .pc file
if(NOT CBOR_FOUND)
check_include_files(cbor.h HAVE_CBOR_H)
if(NOT HAVE_CBOR_H)
message(FATAL_ERROR "could not find cbor header files")
endif()
set(CBOR_LIBRARIES "cbor")
endif()
# XXX workaround libcrypto's missing .pc file
if(NOT CRYPTO_FOUND)
check_include_files(openssl/opensslv.h HAVE_OPENSSLV_H)
if(NOT HAVE_OPENSSLV_H)
message(FATAL_ERROR "could not find crypto header files")
endif()
set(CRYPTO_LIBRARIES "crypto")
endif()
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
pkg_search_module(UDEV libudev REQUIRED)
set(UDEV_NAME "udev")
# Define be32toh().
add_definitions(-D_GNU_SOURCE)
# If using hidapi, use hidapi-hidraw.
set(HIDAPI_SUFFIX -hidraw)
elseif(CMAKE_SYSTEM_NAME STREQUAL "OpenBSD")
set(BASE_LIBRARIES usbhid)
endif()
if(MINGW)
# MinGW is stuck with a flavour of C89.
add_definitions(-DFIDO_NO_DIAGNOSTIC)
add_definitions(-DWC_ERR_INVALID_CHARS=0x80)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-unused-parameter")
endif()
if(USE_HIDAPI)
add_definitions(-DUSE_HIDAPI)
pkg_search_module(HIDAPI hidapi${HIDAPI_SUFFIX} REQUIRED)
if(HIDAPI_FOUND)
set(HIDAPI_LIBRARIES hidapi${HIDAPI_SUFFIX})
endif()
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wextra")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wshadow")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wwrite-strings")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wmissing-prototypes")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wbad-function-cast")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pedantic")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pedantic-errors")
check_c_compiler_flag("-fstack-protector-all" HAVE_STACK_PROTECTOR_ALL)
if(HAVE_STACK_PROTECTOR_ALL)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstack-protector-all")
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99")
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g2")
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -fno-omit-frame-pointer")
if(FUZZ)
if(LIBFUZZER)
set(FUZZ_LDFLAGS "-fsanitize=fuzzer")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=fuzzer-no-link")
endif()
add_definitions(-DFIDO_FUZZ)
endif()
if(ASAN)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address,leak")
endif()
if(MSAN)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=memory")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize-memory-track-origins")
endif()
if(UBSAN)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=undefined")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize-trap=undefined")
endif()
if(COVERAGE)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fprofile-instr-generate -fcoverage-mapping")
endif()
endif()
# Use -Wshorten-64-to-32 if available.
check_c_compiler_flag("-Wshorten-64-to-32" HAVE_SHORTEN_64_TO_32)
if(HAVE_SHORTEN_64_TO_32)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wshorten-64-to-32")
endif()
# Avoid https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66425
if(CMAKE_COMPILER_IS_GNUCC)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-unused-result")
endif()
# Decide which keyword to use for thread-local storage.
if(CMAKE_COMPILER_IS_GNUCC OR
CMAKE_C_COMPILER_ID STREQUAL "Clang" OR
CMAKE_C_COMPILER_ID STREQUAL "AppleClang")
set(TLS "__thread")
elseif(WIN32)
set(TLS "__declspec(thread)")
endif()
add_definitions(-DTLS=${TLS})
# endian.h
check_include_files(endian.h HAVE_ENDIAN_H)
if(HAVE_ENDIAN_H)
add_definitions(-DHAVE_ENDIAN_H)
endif()
# err.h
check_include_files(err.h HAVE_ERR_H)
if(HAVE_ERR_H)
add_definitions(-DHAVE_ERR_H)
endif()
# unistd.h
check_include_files(unistd.h HAVE_UNISTD_H)
if(HAVE_UNISTD_H)
add_definitions(-DHAVE_UNISTD_H)
endif()
# signal.h
check_include_files(signal.h HAVE_SIGNAL_H)
if(HAVE_SIGNAL_H)
add_definitions(-DHAVE_SIGNAL_H)
endif()
# sys/random.h
check_include_files(sys/random.h HAVE_SYS_RANDOM_H)
if(HAVE_SYS_RANDOM_H)
add_definitions(-DHAVE_SYS_RANDOM_H)
endif()
# strlcpy
check_function_exists(strlcpy HAVE_STRLCPY)
if(HAVE_STRLCPY)
add_definitions(-DHAVE_STRLCPY)
endif()
# strlcat
check_function_exists(strlcpy HAVE_STRLCAT)
if(HAVE_STRLCAT)
add_definitions(-DHAVE_STRLCAT)
endif()
# recallocarray
check_function_exists(recallocarray HAVE_RECALLOCARRAY)
if(HAVE_RECALLOCARRAY)
add_definitions(-DHAVE_RECALLOCARRAY)
endif()
# XXX getpagesize is incorrectly detected when cross-compiling
# with mingw on Linux. Avoid.
if(NOT WIN32)
check_function_exists(getpagesize HAVE_GETPAGESIZE)
endif()
if(HAVE_GETPAGESIZE)
add_definitions(-DHAVE_GETPAGESIZE)
endif()
# sysconf
check_function_exists(sysconf HAVE_SYSCONF)
if(HAVE_SYSCONF)
add_definitions(-DHAVE_SYSCONF)
endif()
# memset_s
if(APPLE)
add_definitions(-D__STDC_WANT_LIB_EXT1__=1)
endif()
check_function_exists(memset_s HAVE_MEMSET_S)
if(HAVE_MEMSET_S)
add_definitions(-DHAVE_MEMSET_S)
endif()
# explicit_bzero
if(NOT LIBFUZZER)
check_function_exists(explicit_bzero HAVE_EXPLICIT_BZERO)
if(HAVE_EXPLICIT_BZERO)
add_definitions(-DHAVE_EXPLICIT_BZERO)
endif()
endif()
# timingsafe_bcmp
check_function_exists(timingsafe_bcmp HAVE_TIMINGSAFE_BCMP)
if(HAVE_TIMINGSAFE_BCMP)
add_definitions(-DHAVE_TIMINGSAFE_BCMP)
endif()
# readpassphrase
check_function_exists(readpassphrase HAVE_READPASSPHRASE)
if(HAVE_READPASSPHRASE)
add_definitions(-DHAVE_READPASSPHRASE)
endif()
# getline
check_function_exists(getline HAVE_GETLINE)
if(HAVE_GETLINE)
add_definitions(-DHAVE_GETLINE)
endif()
# getopt
check_function_exists(getopt HAVE_GETOPT)
if(HAVE_GETOPT)
add_definitions(-DHAVE_GETOPT)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wcast-qual")
else()
if(CMAKE_COMPILER_IS_GNUCC)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-discarded-qualifiers")
endif()
if(CMAKE_C_COMPILER_ID STREQUAL "Clang")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-incompatible-pointer-types-discards-qualifiers")
endif()
endif()
# usable sigaction
set(CMAKE_EXTRA_INCLUDE_FILES signal.h)
check_function_exists(sigaction HAVE_SIGACTION)
check_type_size("sig_atomic_t" HAVE_SIG_ATOMIC_T)
if(HAVE_SIGACTION AND (NOT HAVE_SIG_ATOMIC_T STREQUAL ""))
add_definitions(-DSIGNAL_EXAMPLE)
endif()
set(CMAKE_EXTRA_INCLUDE_FILES)
# arc4random_buf
check_function_exists(arc4random_buf HAVE_ARC4RANDOM_BUF)
if(HAVE_ARC4RANDOM_BUF)
add_definitions(-DHAVE_ARC4RANDOM_BUF)
endif()
# getrandom
check_function_exists(getrandom HAVE_GETRANDOM)
if(HAVE_GETRANDOM)
add_definitions(-DHAVE_GETRANDOM)
endif()
# /dev/urandom
if(UNIX)
add_definitions(-DHAVE_DEV_URANDOM)
endif()
# export list
if(APPLE AND (CMAKE_C_COMPILER_ID STREQUAL "Clang" OR
CMAKE_C_COMPILER_ID STREQUAL "AppleClang"))
# clang + lld
string(CONCAT CMAKE_SHARED_LINKER_FLAGS ${CMAKE_SHARED_LINKER_FLAGS}
" -exported_symbols_list ${CMAKE_CURRENT_SOURCE_DIR}/src/export.llvm")
elseif(NOT MSVC)
# clang/gcc + gnu ld
if(FUZZ)
string(CONCAT CMAKE_SHARED_LINKER_FLAGS ${CMAKE_SHARED_LINKER_FLAGS}
" -Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/fuzz/export.gnu")
else()
string(CONCAT CMAKE_SHARED_LINKER_FLAGS ${CMAKE_SHARED_LINKER_FLAGS}
" -Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/src/export.gnu")
endif()
if(NOT WIN32)
string(CONCAT CMAKE_SHARED_LINKER_FLAGS
${CMAKE_SHARED_LINKER_FLAGS}
" -Wl,-z,noexecstack -Wl,-z,relro,-z,now")
string(CONCAT CMAKE_EXE_LINKER_FLAGS
${CMAKE_EXE_LINKER_FLAGS}
" -Wl,-z,noexecstack -Wl,-z,relro,-z,now")
if(FUZZ)
file(STRINGS fuzz/wrapped.sym WRAPPED_SYMBOLS)
foreach(s ${WRAPPED_SYMBOLS})
string(CONCAT CMAKE_SHARED_LINKER_FLAGS
${CMAKE_SHARED_LINKER_FLAGS}
" -Wl,--wrap=${s}")
endforeach()
endif()
endif()
else()
string(CONCAT CMAKE_SHARED_LINKER_FLAGS ${CMAKE_SHARED_LINKER_FLAGS}
" /def:\"${CMAKE_CURRENT_SOURCE_DIR}/src/export.msvc\"")
endif()
include_directories(${CMAKE_SOURCE_DIR}/src)
include_directories(${CBOR_INCLUDE_DIRS})
include_directories(${CRYPTO_INCLUDE_DIRS})
link_directories(${CBOR_LIBRARY_DIRS})
link_directories(${CRYPTO_LIBRARY_DIRS})
message(STATUS "CMAKE_C_COMPILER: ${CMAKE_C_COMPILER}")
message(STATUS "CMAKE_C_COMPILER_ID: ${CMAKE_C_COMPILER_ID}")
message(STATUS "CMAKE_INSTALL_PREFIX: ${CMAKE_INSTALL_PREFIX}")
message(STATUS "CMAKE_INSTALL_LIBDIR: ${CMAKE_INSTALL_LIBDIR}")
message(STATUS "CMAKE_BUILD_TYPE: ${CMAKE_BUILD_TYPE}")
message(STATUS "CBOR_INCLUDE_DIRS: ${CBOR_INCLUDE_DIRS}")
message(STATUS "CBOR_LIBRARY_DIRS: ${CBOR_LIBRARY_DIRS}")
message(STATUS "CBOR_LIBRARIES: ${CBOR_LIBRARIES}")
message(STATUS "CRYPTO_INCLUDE_DIRS: ${CRYPTO_INCLUDE_DIRS}")
message(STATUS "CRYPTO_LIBRARY_DIRS: ${CRYPTO_LIBRARY_DIRS}")
message(STATUS "CRYPTO_LIBRARIES: ${CRYPTO_LIBRARIES}")
message(STATUS "BASE_LIBRARIES: ${BASE_LIBRARIES}")
message(STATUS "HIDAPI_LIBRARIES: ${HIDAPI_LIBRARIES}")
message(STATUS "VERSION: ${FIDO_VERSION}")
message(STATUS "LIB_VERSION: ${LIB_VERSION}")
message(STATUS "LIB_SOVERSION: ${LIB_SOVERSION}")
message(STATUS "FUZZ: ${FUZZ}")
message(STATUS "AFL: ${AFL}")
message(STATUS "LIBFUZZER: ${LIBFUZZER}")
message(STATUS "ASAN: ${ASAN}")
message(STATUS "MSAN: ${MSAN}")
message(STATUS "COVERAGE: ${COVERAGE}")
message(STATUS "TLS: ${TLS}")
message(STATUS "USE_HIDAPI: ${USE_HIDAPI}")
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
message(STATUS "UDEV_INCLUDE_DIRS: ${UDEV_INCLUDE_DIRS}")
message(STATUS "UDEV_LIBRARY_DIRS: ${UDEV_LIBRARY_DIRS}")
message(STATUS "UDEV_LIBRARIES: ${UDEV_LIBRARIES}")
message(STATUS "UDEV_RULES_DIR: ${UDEV_RULES_DIR}")
endif()
subdirs(src)
subdirs(examples)
subdirs(tools)
subdirs(man)
if(NOT WIN32)
if(CMAKE_BUILD_TYPE STREQUAL "Debug")
if(NOT MSAN AND NOT LIBFUZZER)
subdirs(regress)
endif()
endif()
if(FUZZ)
subdirs(fuzz)
endif()
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
subdirs(udev)
endif()
endif()