cmake_minimum_required(VERSION 3.6)
project(GmSSL)

SET(CMAKE_PROJECT_HOMEPAGE_URL "http://gmssl.org")

set(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)
set(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)
SET(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH};${CMAKE_CURRENT_SOURCE_DIR}/cmake")

include_directories(include)

set(src
	src/version.c
	src/debug.c
	src/sm4_common.c
	src/sm4_enc.c
	src/sm4_modes.c
	src/sm4_setkey.c
	src/sm3.c
	src/sm3_hmac.c
	src/sm3_kdf.c
	src/sm2_alg.c
	src/sm2_key.c
	src/sm2_lib.c
	src/sm9_alg.c
	src/sm9_key.c
	src/sm9_lib.c
	src/zuc.c
	src/zuc_modes.c
	src/aes.c
	src/aes_modes.c
	src/sha256.c
	src/sha512.c
	src/chacha20.c
	src/hash_drbg.c
	src/block_cipher.c
	src/digest.c
	src/hmac.c
	src/hkdf.c
	src/pbkdf2.c
	src/gf128.c
	src/gcm.c
	src/aead.c
	src/pkcs8.c
	src/ec.c
	src/rsa.c
	src/asn1.c
	src/hex.c
	src/base64.c
	src/pem.c
	src/x509_alg.c
	src/x509_cer.c
	src/x509_ext.c
	src/x509_req.c
	src/x509_crl.c
	src/x509_new.c
	src/cms.c
	src/sdf/sdf.c
	src/sdf/sdf_lib.c
	src/sdf/sdf_meth.c
	src/sdf/sdf_ext.c
	src/sdf/sdf_sansec.c
	src/skf/skf.c
	src/skf/skf_lib.c
	src/skf/skf_meth.c
	src/skf/skf_ext.c
	src/skf/skf_prn.c
	src/skf/skf_wisec.c
	src/socket.c
	src/tls.c
	src/tls_ext.c
	src/tls_trace.c
	src/tlcp.c
	src/tls12.c
	src/tls13.c
	src/file.c
)

set(tools
	tools/gmssl.c
	tools/version.c
	tools/sm4.c
	tools/sm3.c
	tools/sm3hmac.c
	tools/sm2keygen.c
	tools/sm2sign.c
	tools/sm2verify.c
	tools/sm2encrypt.c
	tools/sm2decrypt.c
	tools/sm9setup.c
	tools/sm9keygen.c
	tools/sm9sign.c
	tools/sm9verify.c
	tools/sm9encrypt.c
	tools/sm9decrypt.c
	tools/zuc.c
	tools/rand.c
	tools/pbkdf2.c
	tools/certgen.c
	tools/certparse.c
	tools/certverify.c
	tools/certrevoke.c
	tools/reqgen.c
	tools/reqparse.c
	tools/reqsign.c
	tools/crlgen.c
	tools/crlget.c
	tools/crlparse.c
	tools/crlverify.c
	tools/cmssign.c
	tools/cmsverify.c
	tools/cmsencrypt.c
	tools/cmsdecrypt.c
	tools/cmsparse.c
	tools/sdfutil.c
	tools/skfutil.c
	tools/tlcp_client.c
	tools/tlcp_server.c
	tools/tls12_client.c
	tools/tls12_server.c
	tools/tls13_client.c
	tools/tls13_server.c
)

set(tests
	sm4
	sm3
	sm2
	sm9
	zuc
	aes
	sha224
	sha256
	sha384
	sha512
	chacha20
	hash_drbg
	block_cipher
	digest
	hmac
	hkdf
	pbkdf2
	gf128
	gcm
	aead
	pkcs8
	ec
	asn1
	hex
	base64
	pem
	x509
	x509_oid
	x509_alg
	x509_str
	x509_ext
	x509_req
	x509_crl
	cms
	tls
	tls13
)

set(demos
	demo_sm2_encrypt
	demo_sm2_keygen
	demo_sm2_keyparse
	demo_sm2_private_key
	demo_sm2_private_key_parse
	demo_sm2_public_key
	demo_sm2_sign
	demo_sm2_sign_ctx
	demo_sm3
	demo_sm3_hmac
	demo_sm3_kdf
	demo_sm4
	demo_sm4_cbc
	demo_sm4_cbc_decrypt_update
	demo_sm4_cbc_encrypt_update
	demo_sm4_cbc_padding
	demo_sm4_ctr
	demo_sm4_ctr_encrypt_update
	demo_sm4_gcm
	demo_sm9_encrypt
	demo_sm9_keygen
	demo_sm9_sign
#	demo_tlcp_get
#	demo_tlcp_post
#	demo_wget
	demo_zuc
)

# when an option has been enabled, `cmake ..` will not refresh the value
# use `cmake .. -DENABLE_XXX=OFF` to disable the option

option(ENABLE_SM2_ALGOR_ID_ENCODE_NULL "Enable AlgorithmIdenifier with algorithm sm2sign_with_sm3 encode a NULL object as parameters" OFF)
if (ENABLE_SM2_ALGOR_ID_ENCODE_NULL)
	message(STATUS "ENABLE_SM2_ALGOR_ID_ENCODE_NULL")
	add_definitions(-DSM2_ALGOR_ID_ENCODE_NULL)
endif()


option(ENABLE_SM2_PRIVATE_KEY_EXPORT "Enable export un-encrypted SM2 private key" OFF)
if (ENABLE_SM2_PRIVATE_KEY_EXPORT)
	message(STATUS "ENABLE_SM2_PRIVATE_KEY_EXPORT")
	add_definitions(-DSM2_PRIVATE_KEY_EXPORT)
	list(APPEND demos demo_sm2_key_export)
endif()


option(ENABLE_TLS_DEBUG "Enable TLS and TLCP print debug message" OFF)
if (ENABLE_TLS_DEBUG)
	message(STATUS "ENABLE_TLS_DEBUG")
	add_definitions(-DTLS_DEBUG)
endif()

option(ENABLE_SM3_AVX_BMI2 "Enable SM3 AVX+BMI2 assembly implementation" OFF)
if (ENABLE_SM3_AVX_BMI2)
	message(STATUS "ENABLE_SM3_AVX_BMI2")
	add_definitions(-DSM3_AVX_BMI2)
	enable_language(ASM)
	list(APPEND src src/sm3_avx_bmi2.s)
endif()


option(ENABLE_SM4_AESNI_AVX "Enable SM4 AESNI+AVX assembly implementation" OFF)
if (ENABLE_SM4_AESNI_AVX)
	message(STATUS "ENABLE_SM4_AESNI_AVX")
	add_definitions(-DSM4_AESNI_AVX)
	list(APPEND src src/sm4_aesni_avx.c)
	list(APPEND tests sm4_aesni_avx)
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=native")
endif()


option(ENABLE_SM2_EXTS "Enable SM2 Extensions" OFF)
if (ENABLE_SM2_EXTS)
	message(STATUS "ENABLE_SM4_AESNI_AVX")
	list(APPEND src
		src/sm2_key_share.c
		src/sm2_recover.c
		src/sm2_blind.c
		src/sm2_ring.c
		src/sm2_elgamal.c
		src/sm2_commit.c)
	list(APPEND tests sm2_key_share sm2_blind sm2_ring sm2_elgamal sm2_commit)
endif()


option(ENABLE_BROKEN_CRYPTO "Enable broken crypto algorithms" OFF)
if (ENABLE_BROKEN_CRYPTO)
	message(STATUS "ENABLE_BROKEN_CRYPTO")
	list(APPEND src src/des.c src/sha1.c src/md5.c src/rc4.c)
	list(APPEND tests des sha1 md5 rc4)
endif()


option(ENABLE_RDRND "Enable Intel RDRND instructions" OFF)
if (${CMAKE_SYSTEM_PROCESSOR} MATCHES x86_64)
	set(ENABLE_RDRND ON)
endif()
if (ENABLE_RDRND)
	message(STATUS "ENABLE_RDRND")
	list(APPEND src src/rdrand.c)
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mrdrnd -mrdseed")
endif()

option(ENABLE_GMT_0105_RNG "Enable GM/T 0105 Software RNG" OFF)
if (ENABLE_GMT_0105_RNG)
	message(STATUS "ENABLE_GMT_0105_RNG")
	list(APPEND src src/sm3_rng.c src/sm4_cbc_mac.c src/sm4_rng.c)
	list(APPEND tests sm3_rng sm4_cbc_mac sm4_rng)
endif()

if (WIN32)
	list(APPEND src src/rand_win.c src/http_win.c)
elseif (APPLE)
	list(APPEND src src/rand_apple.c src/http.c)
elseif (ANDROID)
	list(APPEND src src/rand.c src/http.c)
else()
	list(APPEND src src/rand_unix.c src/http.c)
endif()

option(ENABLE_HTTP_TESTS "Enable HTTP GET/POST related tests" OFF)
if (ENABLE_HTTP_TESTS)
	message(STATUS "ENABLE_HTTP_TESTS")
	list(APPEND tests http http_crl)
endif()


option(BUILD_SHARED_LIBS "Build using shared libraries" ON)

if (CMAKE_C_COMPILER_ID MATCHES "MSVC")
	message(STATUS "CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS")
	set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON) # set before add_library
endif()

add_library(gmssl ${src})


if (WIN32)
	target_link_libraries(gmssl -lws2_32)
elseif (APPLE)
	target_link_libraries(gmssl dl)
	target_link_libraries(gmssl "-framework Security")
	#target_link_libraries(gmssl "-framework CoreFoundation") # rand_apple.c CFRelease()
elseif (MINGW)
	target_link_libraries(gmssl PRIVATE wsock32)
else()
	target_link_libraries(gmssl dl)
endif()


SET_TARGET_PROPERTIES(gmssl PROPERTIES VERSION 3.0 SOVERSION 3)


install(TARGETS gmssl ARCHIVE DESTINATION lib LIBRARY DESTINATION lib RUNTIME DESTINATION bin)
install(DIRECTORY ${CMAKE_SOURCE_DIR}/include/gmssl DESTINATION include)

if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "iOS")

	add_library(sdf_dummy SHARED src/sdf/sdf_dummy.c)
	set_target_properties(sdf_dummy PROPERTIES VERSION 3.0 SOVERSION 3)

	add_library(skf_dummy SHARED src/skf/skf_dummy.c)
	set_target_properties(skf_dummy PROPERTIES VERSION 3.0 SOVERSION 3)

	add_executable(gmssl-bin ${tools})
	target_link_libraries(gmssl-bin LINK_PUBLIC gmssl)
	set_target_properties(gmssl-bin PROPERTIES RUNTIME_OUTPUT_NAME gmssl)
	if (MINGW)
		target_link_libraries(gmssl-bin PRIVATE Ws2_32)
	endif()

	enable_testing()
	foreach(name ${tests})
		add_test(NAME ${name} COMMAND ${name}test)
		add_executable(${name}test tests/${name}test.c)
		target_link_libraries (${name}test LINK_PUBLIC gmssl)
	endforeach()

	foreach(name ${demos})
		add_executable(${name} demos/src/${name}.c)
		target_link_libraries(${name} LINK_PUBLIC gmssl)
	endforeach()

	install(TARGETS gmssl-bin RUNTIME DESTINATION bin)
endif()

if (CMAKE_C_COMPILER_ID MATCHES "MSVC")
	set_property(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT gmssl-bin)
	set(CMAKE_INSTALL_PREFIX "C:/Program Files/GmSSL") # change by `cmake -DCMAKE_INSTALL_PREFIX=C:\path\to\install`
	# run `set path=%path%;C:\Program Files\GmSSL\bin`
	add_compile_definitions(_CRT_SECURE_NO_WARNINGS)
#	target_compile_options(gmssl PRIVATE /wd4996)
#	target_compile_options(gmssl-bin PRIVATE /wd4996)
endif()

if (UNIX)
	# packaging
	include(LinuxPacking)
	include(DebPacking)
	include(RpmPacking)
	include(CPack)
endif (UNIX)