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libssh/ConfigureChecks.cmake

514 lines
15 KiB
CMake

include(CheckIncludeFile)
include(CheckIncludeFiles)
include(CheckSymbolExists)
include(CheckFunctionExists)
include(CheckLibraryExists)
include(CheckTypeSize)
include(CheckStructHasMember)
include(TestBigEndian)
set(PACKAGE ${PROJECT_NAME})
set(VERSION ${PROJECT_VERSION})
set(SYSCONFDIR ${CMAKE_INSTALL_SYSCONFDIR})
set(BINARYDIR ${CMAKE_BINARY_DIR})
set(SOURCEDIR ${CMAKE_SOURCE_DIR})
function(COMPILER_DUMPVERSION _OUTPUT_VERSION)
# Remove whitespaces from the argument.
# This is needed for CC="ccache gcc" cmake ..
string(REPLACE " " "" _C_COMPILER_ARG "${CMAKE_C_COMPILER_ARG1}")
execute_process(
COMMAND
${CMAKE_C_COMPILER} ${_C_COMPILER_ARG} -dumpversion
OUTPUT_VARIABLE _COMPILER_VERSION
)
string(REGEX REPLACE "([0-9])\\.([0-9])(\\.[0-9])?" "\\1\\2"
_COMPILER_VERSION "${_COMPILER_VERSION}")
set(${_OUTPUT_VERSION} ${_COMPILER_VERSION} PARENT_SCOPE)
endfunction()
if(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2)
compiler_dumpversion(GNUCC_VERSION)
if (NOT GNUCC_VERSION EQUAL 34)
set(CMAKE_REQUIRED_FLAGS "-fvisibility=hidden")
check_c_source_compiles(
"void __attribute__((visibility(\"default\"))) test() {}
int main(void){ return 0; }
" WITH_VISIBILITY_HIDDEN)
unset(CMAKE_REQUIRED_FLAGS)
endif (NOT GNUCC_VERSION EQUAL 34)
endif(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2)
# HEADER FILES
set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES} ${ARGP_INCLUDE_DIR})
check_include_file(argp.h HAVE_ARGP_H)
unset(CMAKE_REQUIRED_INCLUDES)
check_include_file(pty.h HAVE_PTY_H)
check_include_file(utmp.h HAVE_UTMP_H)
check_include_file(termios.h HAVE_TERMIOS_H)
check_include_file(unistd.h HAVE_UNISTD_H)
check_include_file(stdint.h HAVE_STDINT_H)
check_include_file(util.h HAVE_UTIL_H)
check_include_file(libutil.h HAVE_LIBUTIL_H)
check_include_file(sys/time.h HAVE_SYS_TIME_H)
check_include_file(sys/utime.h HAVE_SYS_UTIME_H)
check_include_file(sys/param.h HAVE_SYS_PARAM_H)
check_include_file(arpa/inet.h HAVE_ARPA_INET_H)
check_include_file(byteswap.h HAVE_BYTESWAP_H)
check_include_file(glob.h HAVE_GLOB_H)
check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H)
if (WIN32)
check_include_file(io.h HAVE_IO_H)
check_include_files("winsock2.h;ws2tcpip.h;wspiapi.h" HAVE_WSPIAPI_H)
if (NOT HAVE_WSPIAPI_H)
message(STATUS "WARNING: Without wspiapi.h, this build will only work on Windows XP and newer versions")
endif (NOT HAVE_WSPIAPI_H)
check_include_files("winsock2.h;ws2tcpip.h" HAVE_WS2TCPIP_H)
endif (WIN32)
if (OPENSSL_FOUND)
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
check_include_file(openssl/des.h HAVE_OPENSSL_DES_H)
if (NOT HAVE_OPENSSL_DES_H)
message(FATAL_ERROR "Could not detect openssl/des.h")
endif()
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
check_include_file(openssl/aes.h HAVE_OPENSSL_AES_H)
if (NOT HAVE_OPENSSL_AES_H)
message(FATAL_ERROR "Could not detect openssl/aes.h")
endif()
if (WITH_BLOWFISH_CIPHER)
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
check_include_file(openssl/blowfish.h HAVE_OPENSSL_BLOWFISH_H)
endif()
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
check_include_file(openssl/ecdh.h HAVE_OPENSSL_ECDH_H)
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
check_include_file(openssl/ec.h HAVE_OPENSSL_EC_H)
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
check_include_file(openssl/ecdsa.h HAVE_OPENSSL_ECDSA_H)
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARIES})
check_function_exists(EVP_KDF_CTX_new_id HAVE_OPENSSL_EVP_KDF_CTX_NEW_ID)
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARIES})
check_function_exists(EVP_KDF_CTX_new HAVE_OPENSSL_EVP_KDF_CTX_NEW)
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARIES})
check_function_exists(FIPS_mode HAVE_OPENSSL_FIPS_MODE)
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARIES})
check_function_exists(RAND_priv_bytes HAVE_OPENSSL_RAND_PRIV_BYTES)
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARIES})
check_function_exists(EVP_DigestSign HAVE_OPENSSL_EVP_DIGESTSIGN)
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARIES})
check_function_exists(EVP_DigestVerify HAVE_OPENSSL_EVP_DIGESTVERIFY)
check_function_exists(OPENSSL_ia32cap_loc HAVE_OPENSSL_IA32CAP_LOC)
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARIES})
check_symbol_exists(EVP_PKEY_ED25519 "openssl/evp.h" FOUND_OPENSSL_ED25519)
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARIES})
check_function_exists(EVP_chacha20 HAVE_OPENSSL_EVP_CHACHA20)
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARIES})
check_symbol_exists(EVP_PKEY_POLY1305 "openssl/evp.h" HAVE_OPENSSL_EVP_POLY1305)
if (HAVE_OPENSSL_EVP_DIGESTSIGN AND HAVE_OPENSSL_EVP_DIGESTVERIFY AND
FOUND_OPENSSL_ED25519)
set(HAVE_OPENSSL_ED25519 1)
endif()
set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_CRYPTO_LIBRARIES})
check_symbol_exists(EVP_PKEY_X25519 "openssl/evp.h" HAVE_OPENSSL_X25519)
unset(CMAKE_REQUIRED_INCLUDES)
unset(CMAKE_REQUIRED_LIBRARIES)
endif()
if (CMAKE_HAVE_PTHREAD_H)
set(HAVE_PTHREAD_H 1)
endif (CMAKE_HAVE_PTHREAD_H)
if (NOT WITH_GCRYPT AND NOT WITH_MBEDTLS)
if (HAVE_OPENSSL_EC_H AND HAVE_OPENSSL_ECDSA_H)
set(HAVE_OPENSSL_ECC 1)
endif (HAVE_OPENSSL_EC_H AND HAVE_OPENSSL_ECDSA_H)
if (HAVE_OPENSSL_ECC)
set(HAVE_ECC 1)
endif (HAVE_OPENSSL_ECC)
if (HAVE_OPENSSL_EVP_KDF_CTX_NEW_ID OR HAVE_OPENSSL_EVP_KDF_CTX_NEW)
set(HAVE_OPENSSL_EVP_KDF_CTX 1)
endif (HAVE_OPENSSL_EVP_KDF_CTX_NEW_ID OR HAVE_OPENSSL_EVP_KDF_CTX_NEW)
endif ()
if (WITH_DSA)
if (NOT WITH_MBEDTLS)
set(HAVE_DSA 1)
endif (NOT WITH_MBEDTLS)
endif()
# FUNCTIONS
check_function_exists(isblank HAVE_ISBLANK)
check_function_exists(strncpy HAVE_STRNCPY)
check_function_exists(strndup HAVE_STRNDUP)
check_function_exists(strtoull HAVE_STRTOULL)
check_function_exists(explicit_bzero HAVE_EXPLICIT_BZERO)
check_function_exists(memset_s HAVE_MEMSET_S)
if (HAVE_GLOB_H)
check_struct_has_member(glob_t gl_flags glob.h HAVE_GLOB_GL_FLAGS_MEMBER)
check_function_exists(glob HAVE_GLOB)
endif (HAVE_GLOB_H)
if (NOT WIN32)
check_function_exists(vsnprintf HAVE_VSNPRINTF)
check_function_exists(snprintf HAVE_SNPRINTF)
endif (NOT WIN32)
if (WIN32)
check_symbol_exists(vsnprintf "stdio.h" HAVE_VSNPRINTF)
check_symbol_exists(snprintf "stdio.h" HAVE_SNPRINTF)
check_symbol_exists(_vsnprintf_s "stdio.h" HAVE__VSNPRINTF_S)
check_symbol_exists(_vsnprintf "stdio.h" HAVE__VSNPRINTF)
check_symbol_exists(_snprintf "stdio.h" HAVE__SNPRINTF)
check_symbol_exists(_snprintf_s "stdio.h" HAVE__SNPRINTF_S)
if (HAVE_WSPIAPI_H OR HAVE_WS2TCPIP_H)
check_symbol_exists(ntohll winsock2.h HAVE_NTOHLL)
check_symbol_exists(htonll winsock2.h HAVE_HTONLL)
set(CMAKE_REQUIRED_LIBRARIES ws2_32)
check_symbol_exists(select "winsock2.h;ws2tcpip.h" HAVE_SELECT)
check_symbol_exists(poll "winsock2.h;ws2tcpip.h" HAVE_SELECT)
# The getaddrinfo function is defined to the WspiapiGetAddrInfo inline function
check_symbol_exists(getaddrinfo "winsock2.h;ws2tcpip.h" HAVE_GETADDRINFO)
unset(CMAKE_REQUIRED_LIBRARIES)
endif (HAVE_WSPIAPI_H OR HAVE_WS2TCPIP_H)
check_function_exists(_strtoui64 HAVE__STRTOUI64)
set(HAVE_SELECT TRUE)
check_symbol_exists(SecureZeroMemory "windows.h" HAVE_SECURE_ZERO_MEMORY)
else (WIN32)
check_function_exists(poll HAVE_POLL)
check_function_exists(select HAVE_SELECT)
check_function_exists(getaddrinfo HAVE_GETADDRINFO)
check_symbol_exists(ntohll arpa/inet.h HAVE_NTOHLL)
check_symbol_exists(htonll arpa/inet.h HAVE_HTONLL)
endif (WIN32)
if (UNIX)
if (NOT LINUX)
# libsocket (Solaris)
check_library_exists(socket getaddrinfo "" HAVE_LIBSOCKET)
if (HAVE_LIBSOCKET)
set(HAVE_GETADDRINFO TRUE)
set(_REQUIRED_LIBRARIES ${_REQUIRED_LIBRARIES} socket)
endif (HAVE_LIBSOCKET)
# libnsl/inet_pton (Solaris)
check_library_exists(nsl inet_pton "" HAVE_LIBNSL)
if (HAVE_LIBNSL)
set(_REQUIRED_LIBRARIES ${_REQUIRED_LIBRARIES} nsl)
endif (HAVE_LIBNSL)
# librt
check_library_exists(rt nanosleep "" HAVE_LIBRT)
endif (NOT LINUX)
check_library_exists(rt clock_gettime "" HAVE_CLOCK_GETTIME)
if (HAVE_LIBRT OR HAVE_CLOCK_GETTIME)
set(_REQUIRED_LIBRARIES ${_REQUIRED_LIBRARIES} rt)
endif (HAVE_LIBRT OR HAVE_CLOCK_GETTIME)
check_library_exists(util forkpty "" HAVE_LIBUTIL)
check_function_exists(cfmakeraw HAVE_CFMAKERAW)
check_function_exists(__strtoull HAVE___STRTOULL)
endif (UNIX)
set(LIBSSH_REQUIRED_LIBRARIES ${_REQUIRED_LIBRARIES} CACHE INTERNAL "libssh required system libraries")
# LIBRARIES
if (OPENSSL_FOUND)
set(HAVE_LIBCRYPTO 1)
endif (OPENSSL_FOUND)
if (GCRYPT_FOUND)
set(HAVE_LIBGCRYPT 1)
if (GCRYPT_VERSION VERSION_GREATER "1.4.6")
set(HAVE_GCRYPT_ECC 1)
set(HAVE_ECC 1)
endif (GCRYPT_VERSION VERSION_GREATER "1.4.6")
if (NOT GCRYPT_VERSION VERSION_LESS "1.7.0")
set(HAVE_GCRYPT_CHACHA_POLY 1)
endif (NOT GCRYPT_VERSION VERSION_LESS "1.7.0")
endif (GCRYPT_FOUND)
if (MBEDTLS_FOUND)
set(HAVE_LIBMBEDCRYPTO 1)
set(HAVE_ECC 1)
set(CMAKE_REQUIRED_INCLUDES "${MBEDTLS_INCLUDE_DIR}/mbedtls")
check_include_file(chacha20.h HAVE_MBEDTLS_CHACHA20_H)
check_include_file(poly1305.h HAVE_MBEDTLS_POLY1305_H)
unset(CMAKE_REQUIRED_INCLUDES)
endif (MBEDTLS_FOUND)
if (CMAKE_USE_PTHREADS_INIT)
set(HAVE_PTHREAD 1)
endif (CMAKE_USE_PTHREADS_INIT)
if (UNIT_TESTING)
if (CMOCKA_FOUND)
set(CMAKE_REQUIRED_LIBRARIES ${CMOCKA_LIBRARIES})
check_function_exists(cmocka_set_test_filter HAVE_CMOCKA_SET_TEST_FILTER)
unset(CMAKE_REQUIRED_LIBRARIES)
endif ()
endif ()
# OPTIONS
check_c_source_compiles("
__thread int tls;
int main(void) {
return 0;
}" HAVE_GCC_THREAD_LOCAL_STORAGE)
check_c_source_compiles("
__declspec(thread) int tls;
int main(void) {
return 0;
}" HAVE_MSC_THREAD_LOCAL_STORAGE)
###########################################################
# For detecting attributes we need to treat warnings as
# errors
if (UNIX OR MINGW)
# Get warnings for attributs
check_c_compiler_flag("-Wattributes" REQUIRED_FLAGS_WERROR)
if (REQUIRED_FLAGS_WERROR)
string(APPEND CMAKE_REQUIRED_FLAGS "-Wattributes ")
endif()
# Turn warnings into errors
check_c_compiler_flag("-Werror" REQUIRED_FLAGS_WERROR)
if (REQUIRED_FLAGS_WERROR)
string(APPEND CMAKE_REQUIRED_FLAGS "-Werror ")
endif()
endif ()
check_c_source_compiles("
void test_constructor_attribute(void) __attribute__ ((constructor));
void test_constructor_attribute(void)
{
return;
}
int main(void) {
return 0;
}" HAVE_CONSTRUCTOR_ATTRIBUTE)
check_c_source_compiles("
void test_destructor_attribute(void) __attribute__ ((destructor));
void test_destructor_attribute(void)
{
return;
}
int main(void) {
return 0;
}" HAVE_DESTRUCTOR_ATTRIBUTE)
check_c_source_compiles("
#define FALL_THROUGH __attribute__((fallthrough))
int main(void) {
int i = 2;
switch (i) {
case 0:
FALL_THROUGH;
case 1:
break;
default:
break;
}
return 0;
}" HAVE_FALLTHROUGH_ATTRIBUTE)
check_c_source_compiles("
#define WEAK __attribute__((weak))
WEAK int sum(int a, int b)
{
return a + b;
}
int main(void)
{
int i = sum(2, 2);
(void)i;
return 0;
}" HAVE_WEAK_ATTRIBUTE)
if (NOT WIN32)
check_c_source_compiles("
#define __unused __attribute__((unused))
static int do_nothing(int i __unused)
{
return 0;
}
int main(void)
{
int i;
i = do_nothing(5);
if (i > 5) {
return 1;
}
return 0;
}" HAVE_UNUSED_ATTRIBUTE)
endif()
check_c_source_compiles("
#include <string.h>
int main(void)
{
char buf[] = \"This is some content\";
memset(buf, '\\\\0', sizeof(buf)); __asm__ volatile(\"\" : : \"g\"(&buf) : \"memory\");
return 0;
}" HAVE_GCC_VOLATILE_MEMORY_PROTECTION)
check_c_source_compiles("
#include <stdio.h>
int main(void) {
printf(\"%s\", __func__);
return 0;
}" HAVE_COMPILER__FUNC__)
check_c_source_compiles("
#include <stdio.h>
int main(void) {
printf(\"%s\", __FUNCTION__);
return 0;
}" HAVE_COMPILER__FUNCTION__)
# This is only available with OpenBSD's gcc implementation */
if (OPENBSD)
check_c_source_compiles("
#define ARRAY_LEN 16
void test_attr(const unsigned char *k)
__attribute__((__bounded__(__minbytes__, 2, 16)));
int main(void) {
return 0;
}" HAVE_GCC_BOUNDED_ATTRIBUTE)
endif(OPENBSD)
# Stop treating warnings as errors
unset(CMAKE_REQUIRED_FLAGS)
# Check for version script support
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map" "VERS_1 {
global: sym;
};
VERS_2 {
global: sym;
} VERS_1;
")
set(CMAKE_REQUIRED_FLAGS "-Wl,--version-script=\"${CMAKE_CURRENT_BINARY_DIR}/conftest.map\"")
check_c_source_compiles("int main(void) { return 0; }" HAVE_LD_VERSION_SCRIPT)
unset(CMAKE_REQUIRED_FLAGS)
file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map")
if (WITH_DEBUG_CRYPTO)
set(DEBUG_CRYPTO 1)
endif (WITH_DEBUG_CRYPTO)
if (WITH_DEBUG_PACKET)
set(DEBUG_PACKET 1)
endif (WITH_DEBUG_PACKET)
if (WITH_DEBUG_CALLTRACE)
set(DEBUG_CALLTRACE 1)
endif (WITH_DEBUG_CALLTRACE)
if (WITH_GSSAPI AND NOT GSSAPI_FOUND)
set(WITH_GSSAPI 0)
endif (WITH_GSSAPI AND NOT GSSAPI_FOUND)
if (WITH_PKCS11_URI)
if (WITH_GCRYPT)
message(FATAL_ERROR "PKCS #11 is not supported for gcrypt.")
set(WITH_PKCS11_URI 0)
endif()
if (WITH_MBEDTLS)
message(FATAL_ERROR "PKCS #11 is not supported for mbedcrypto")
set(WITH_PKCS11_URI 0)
endif()
if (HAVE_OPENSSL AND NOT OPENSSL_VERSION VERSION_GREATER_EQUAL "1.1.1")
message(FATAL_ERROR "PKCS #11 requires at least OpenSSL 1.1.1")
set(WITH_PKCS11_URI 0)
endif()
endif()
if (WITH_MBEDTLS)
if (WITH_DSA)
message(FATAL_ERROR "DSA is not supported with mbedTLS crypto")
set(HAVE_DSA 0)
endif()
endif()
# ENDIAN
if (NOT WIN32)
test_big_endian(WORDS_BIGENDIAN)
endif (NOT WIN32)