[Openvpn-devel,XL] Change in openvpn[release/2.6]: add basic CMake based build

Message ID 5686a39411cec135016dd392f76ed665e9f067ee-HTML@gerrit.openvpn.net
State Not Applicable
Headers show
Series [Openvpn-devel,XL] Change in openvpn[release/2.6]: add basic CMake based build | expand

Commit Message

flichtenheld (Code Review) July 31, 2023, 11:27 a.m. UTC
Attention is currently required from: flichtenheld, plaisthos.

stipa has uploaded this change for review. ( http://gerrit.openvpn.net/c/openvpn/+/322?usp=email )


Change subject: add basic CMake based build
......................................................................

add basic CMake based build

This helps with IDE integration among other things.

This is a basic implementation for development purposes
that can't replace any of the existing release builds.

Change-Id: I666314a223d324ca72dbe7ba7d22f764996d3ca2
Signed-off-by: Arne Schwabe <arne@rfc2549.org>
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com>
---
A CMakeLists.txt
A config.h.cmake.in
M src/openvpn/lzo.h
3 files changed, 1,091 insertions(+), 1 deletion(-)



  git pull ssh://gerrit.openvpn.net:29418/openvpn refs/changes/22/322/1

Patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..9978ea4
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,591 @@ 
+  cmake_minimum_required(VERSION 3.3)
+project(openvpn)
+
+# This CMake file implements building OpenVPN with CMAKE
+#
+# Note that this is *NOT* the official way to build openvpn on anything
+# other than Windows/mingw despite working on other platforms too. You will need
+# to add -DUNSUPPORTED_BUILDS=true to build on non Windows platforms.
+#
+# This cmake also makes a few assertions like lzo, lz4 being used
+# and OpenSSL having version 1.1.1+ and generally does not offer the same
+# configurability like autoconf
+
+# -DCMAKE_TOOLCHAIN_FILE=C:/Users/User/source/repos/vcpkg/scripts/buildsystems/vcpkg.cmake
+#-DVCPKG_OVERLAY_PORTS=C:/Users/User/source/repos/openvpn/contrib/vcpkg-ports
+#-GNinja
+
+option(UNSUPPORTED_BUILDS "Allow unsupported builds" OFF)
+
+if (NOT WIN32 AND NOT ${UNSUPPORTED_BUILDS})
+    message(FATAL_ERROR "Note: on Unix platform the official and supported build method is using autoconfig. CMake based build should be only used for Windows and internal testing/development.")
+endif()
+
+option(MBED "BUILD with mbed" OFF)
+option(WOLFSSL "BUILD with wolfSSL" OFF)
+if (MSVC)
+    option(USE_WERROR "Treat compiler warnings as errors (-Werror)" OFF)
+else ()
+    option(USE_WERROR "Treat compiler warnings as errors (-Werror)" ON)
+endif ()
+option(PLUGIN_DIR "Location of the plugin directory" /usr/local/lib/openvpn/plugins)
+
+# AddressSanitize - use CXX=clang++ CC=clang cmake -DCMAKE_BUILD_TYPE=asan to build with ASAN
+set(CMAKE_C_FLAGS_ASAN
+        "-fsanitize=address,undefined -fno-sanitize-recover=all -fno-optimize-sibling-calls -fsanitize-address-use-after-scope -fno-omit-frame-pointer -g -O1"
+        CACHE STRING "Flags used by the C compiler during AddressSanitizer builds."
+        FORCE)
+set(CMAKE_CXX_FLAGS_ASAN
+        "-fsanitize=address,undefined -fno-sanitize-recover=all -fno-optimize-sibling-calls -fsanitize-address-use-after-scope -fno-omit-frame-pointer -g -O1"
+        CACHE STRING "Flags used by the C++ compiler during AddressSanitizer builds."
+        FORCE)
+
+if (MSVC)
+    target_compile_options(${target} PRIVATE /W3)
+else ()
+    add_compile_options(-Wall -Wuninitialized)
+    # We are not ready for this
+    #add_compile_options(-Wsign-compare)
+endif ()
+
+find_package(PkgConfig)
+INCLUDE(CheckSymbolExists)
+INCLUDE(CheckIncludeFiles)
+INCLUDE(CheckTypeSize)
+INCLUDE(CheckStructHasMember)
+
+set(OPENVPN_VERSION_MAJOR 2)
+set(OPENVPN_VERSION_MINOR 6)
+set(OPENVPN_VERSION_PATCH _git)
+
+if (NOT WIN32)
+    add_definitions(-DPLUGIN_LIBDIR=\"${PLUGIN_DIR}\")
+endif ()
+
+# TODO remove later when msvc-config.h is removed and we can always include config.h
+add_definitions(-DHAVE_CONFIG_H)
+
+
+# Set the various defines for config.h.cmake.in
+if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
+    set(TARGET_LINUX YES)
+    set(ENABLE_ASYNC_PUSH YES)
+    set(ENABLE_LINUXDCO YES)
+    set(ENABLE_SITNL YES)
+    set(HAVE_DECL_SO_MARK YES)
+    set(ENABLE_FEATURE_TUN_PERSIST 1)
+    set(HAVE_LINUX_TYPES_H 1)
+    set(ENABLE_DCO YES)
+    set(HAVE_CMSGHDR YES)
+elseif (${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD")
+    set(TARGET_FREEBSD YES)
+    set(ENABLE_DCO YES)
+    link_libraries(-lnv)
+elseif (WIN32)
+    set(ENABLE_DCO YES)
+elseif (APPLE)
+    set(TARGET_DARWIN YES)
+    set(HAVE_NET_IF_UTUN_H YES)
+endif ()
+
+if (UNIX)
+    set(PATH_SEPARATOR /)
+    set(ENABLE_PORT_SHARE YES)
+    set(HAVE_SA_FAMILY_T YES)
+elseif (WIN32)
+    set(PATH_SEPARATOR \\\\)
+    set(TARGET_WIN32 YES)
+endif ()
+
+CHECK_SYMBOL_EXISTS(chroot unistd.h HAVE_CHROOT)
+CHECK_SYMBOL_EXISTS(chdir unistd.h HAVE_CHDIR)
+CHECK_SYMBOL_EXISTS(dup unistd.h HAVE_DUP)
+CHECK_SYMBOL_EXISTS(dup2 unistd.h HAVE_DUP2)
+CHECK_SYMBOL_EXISTS(fork unistd.h HAVE_FORK)
+CHECK_SYMBOL_EXISTS(execve unistd.h HAVE_EXECVE)
+CHECK_SYMBOL_EXISTS(ftruncate unistd.h HAVE_FTRUNCATE)
+CHECK_SYMBOL_EXISTS(setgid unistd.h HAVE_SETGID)
+CHECK_SYMBOL_EXISTS(setuid unistd.h HAVE_SETUID)
+CHECK_SYMBOL_EXISTS(getpeereid unistd.h HAVE_GETPEEREID)
+
+CHECK_SYMBOL_EXISTS(epoll_create sys/epoll.h HAVE_EPOLL_CREATE)
+
+CHECK_SYMBOL_EXISTS(gettimeofday sys/time.h HAVE_GETTIMEOFDAY)
+CHECK_SYMBOL_EXISTS(basename libgen.h HAVE_BASENAME)
+CHECK_SYMBOL_EXISTS(chsize io.h HAVE_CHSIZE)
+CHECK_SYMBOL_EXISTS(daemon stdlib.h HAVE_DAEMON)
+CHECK_SYMBOL_EXISTS(dirname libgen.h HAVE_DIRNAME)
+CHECK_SYMBOL_EXISTS(getrlimit sys/resource.h HAVE_GETRLIMIT)
+CHECK_SYMBOL_EXISTS(mlockall sys/mman.h HAVE_MLOCKALL)
+
+CHECK_SYMBOL_EXISTS(sendmsg sys/socket.h HAVE_SENDMSG)
+CHECK_SYMBOL_EXISTS(recvmsg sys/socket.h HAVE_RECVMSG)
+CHECK_SYMBOL_EXISTS(cmsghdr sys/socket.h HAVE_CMSGHDR)
+CHECK_SYMBOL_EXISTS(openlog syslog.h HAVE_OPENLOG)
+CHECK_SYMBOL_EXISTS(syslog syslog.h HAVE_SYSLOG)
+CHECK_SYMBOL_EXISTS(getgrnam grp.h HAVE_GETGRNAM)
+CHECK_SYMBOL_EXISTS(getpwnam pwd.h HAVE_GETPWNAM)
+CHECK_SYMBOL_EXISTS(getsockname sys/socket.h HAVE_GETSOCKNAME)
+
+# Some OS (e.g. FreeBSD) need some basic headers to allow
+# including network headers
+SET(NETEXTRA sys/types.h)
+CHECK_INCLUDE_FILES("${NETEXTRA};netinet/in.h" HAVE_NETINET_IN_H)
+
+if (HAVE_NETINET_IN_H)
+    LIST(APPEND NETEXTRA netinet/in.h)
+endif ()
+
+CHECK_INCLUDE_FILES("${NETEXTRA};netinet/in6.h" HAVE_NETINET_IN_H)
+CHECK_INCLUDE_FILES(linux/if_tun.h HAVE_LINUX_IF_TUN_H)
+CHECK_INCLUDE_FILES(linux/sockios.h HAVE_LINUX_SOCKIOS_H)
+CHECK_INCLUDE_FILES(dlfcn.h HAVE_DLFCN_H)
+CHECK_INCLUDE_FILES(fcntl.h HAVE_FCNTL_H)
+CHECK_INCLUDE_FILES(dmalloc.h HAVE_DMALLOC_H)
+CHECK_INCLUDE_FILES(err.h HAVE_ERR_H)
+CHECK_INCLUDE_FILES(sys/epoll.h HAVE_SYS_EPOLL_H)
+CHECK_INCLUDE_FILES(poll.h HAVE_POLL_H)
+CHECK_INCLUDE_FILES(sys/socket.h HAVE_SYS_SOCKET_H)
+CHECK_INCLUDE_FILES(sys/time.h HAVE_SYS_TIME_H)
+CHECK_INCLUDE_FILES(netdb.h HAVE_NETDB_H)
+CHECK_INCLUDE_FILES(unistd.h HAVE_UNISTD_H)
+CHECK_INCLUDE_FILES(sys/un.h HAVE_SYS_UN_H)
+CHECK_INCLUDE_FILES(libgen.h HAVE_LIBGEN_H)
+CHECK_INCLUDE_FILES(net/if.h HAVE_NET_IF_H)
+CHECK_INCLUDE_FILES("${NETEXTRA};netinet/ip.h" HAVE_NETINET_IP_H)
+CHECK_INCLUDE_FILES(arpa/inet.h HAVE_ARPA_INET_H)
+CHECK_INCLUDE_FILES(net/if_utun.h HAVE_NET_UTUN_H)
+CHECK_INCLUDE_FILES(sys/ioctl.h HAVE_SYS_IOCTL_H)
+CHECK_INCLUDE_FILES(sys/inotify.h HAVE_SYS_INOTIFY_H)
+CHECK_INCLUDE_FILES("${NETEXTRA};sys/uio.h" HAVE_SYS_UIO_H)
+CHECK_INCLUDE_FILES(syslog.h HAVE_SYSLOG_H)
+CHECK_INCLUDE_FILES(sys/wait.h HAVE_SYS_WAIT_H)
+CHECK_INCLUDE_FILES(grp.h HAVE_GRP_H)
+CHECK_INCLUDE_FILES(pwd.h HAVE_PWD_H)
+CHECK_INCLUDE_FILES(sys/mman.h HAVE_SYS_MMAN_H)
+
+
+CHECK_INCLUDE_FILES("${NETEXTRA};resolv.h" HAVE_RESOLV_H)
+CHECK_INCLUDE_FILES("${NETEXTRA};net/if_tun.h" HAVE_NET_IF_TUN_H)
+
+# Is this obscure header needed anywhere?!
+CHECK_INCLUDE_FILES(netinet/in_systm.h HAVE_NETINET_IN_SYSTM_H)
+
+
+SET(CMAKE_EXTRA_INCLUDE_FILES netinet/ip.h)
+CHECK_TYPE_SIZE("struct in_pktinfo" IN_PKTINFO)
+CHECK_STRUCT_HAS_MEMBER("struct in_pktinfo" ipi_spec_dst netinet/ip.h HAVE_IPI_SPEC_DST)
+CHECK_TYPE_SIZE("struct msghdr" MSGHDR)
+SET(CMAKE_EXTRA_INCLUDE_FILES)
+
+find_program(IFCONFIG_PATH ifconfig)
+find_program(IPROUTE_PATH ip)
+find_program(ROUTE_PATH route)
+
+
+if (NOT WIN32)
+    set(ENABLE_LZ4 YES)
+    set(ENABLE_LZO YES)
+endif ()
+
+function(add_library_deps target)
+    if (${MBED})
+        target_include_directories(${target} PRIVATE $ENV{HOME}/oss/mbedtls2/include)
+        message("Building ${target} for mbed TLS")
+        target_link_libraries(${target} PUBLIC -L$ENV{HOME}/oss/mbedtls2/library -L/usr/local/opt/lzo/lib -lmbedtls -lmbedx509 -lmbedcrypto)
+    elseif (${WOLFSSL})
+        pkg_search_module(wolfssl wolfssl REQUIRED)
+        target_link_libraries(${target} PUBLIC ${wolfssl_LINK_LIBRARIES})
+        target_include_directories(${target} PRIVATE ${wolfssl_INCLUDE_DIRS}/wolfssl)
+        message("Building ${target} for WolfSSL: ${wolfssl_LINK_LIBRARIES} ${wolfssl_INCLUDE_DIRS}/wolfsll")
+    else ()
+        set(ENABLE_X509ALTUSERNAME YES)
+
+        find_package(OpenSSL REQUIRED)
+        target_link_libraries(${target} PUBLIC OpenSSL::SSL)
+
+        message("Building ${target} for default OpenSSL")
+    endif ()
+
+
+    if (${ENABLE_LZ4})
+        pkg_search_module(liblz4 liblz4 REQUIRED IMPORTED_TARGET)
+        target_link_libraries(${target} PUBLIC PkgConfig::liblz4)
+    endif ()
+
+    if (${ENABLE_LZO})
+        pkg_search_module(lzo2 lzo2 REQUIRED IMPORTED_TARGET)
+        target_link_libraries(${target} PUBLIC PkgConfig::lzo2)
+    endif ()
+
+    if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
+        target_include_directories(${target} PUBLIC ${LIBNL_INCLUDE_DIRS})
+        target_link_libraries(${target} PUBLIC ${LIBNL_LIBRARIES})
+    endif ()
+
+    if (USE_WERROR)
+        if (MSVC)
+            target_compile_options(${target} PRIVATE /WX)
+        else ()
+            target_compile_options(${target} PRIVATE -Werror)
+        endif ()
+    endif ()
+endfunction()
+
+if (${MBED})
+    set(ENABLE_CRYPTO_MBEDTLS YES)
+elseif (${WOLFSSL})
+    set(ENABLE_CRYPTO_OPENSSL YES)
+    set(ENABLE_CRYPTO_WOLFSSL YES)
+    set(ENABLE_X509ALTUSERNAME YES)
+else ()
+    set(ENABLE_CRYPTO_OPENSSL YES)
+    set(ENABLE_X509ALTUSERNAME YES)
+endif ()
+
+include_directories(${CMAKE_CURRENT_SOURCE_DIR} src/compat include)
+
+if (WIN32)
+    find_package(OpenSSL REQUIRED)
+
+    link_libraries(OpenSSL::SSL OpenSSL::Crypto ws2_32.lib Crypt32.lib fwpuclnt.lib iphlpapi.lib
+            wininet.lib setupapi.lib rpcrt4.lib wtsapi32.lib Ncrypt.lib)
+    add_definitions(-D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_DEPRECATE -D _WINSOCK_DEPRECATED_NO_WARNINGS -D_CONSOLE)
+endif ()
+
+configure_file(config.h.cmake.in config.h)
+configure_file(include/openvpn-plugin.h.in openvpn-plugin.h)
+
+include_directories(${CMAKE_CURRENT_BINARY_DIR})
+
+set(SOURCE_FILES
+        ${CMAKE_CURRENT_BINARY_DIR}/config.h
+        ${CMAKE_CURRENT_BINARY_DIR}/openvpn-plugin.h
+
+        src/compat/compat-basename.c
+        src/compat/compat-daemon.c
+        src/compat/compat-dirname.c
+        src/compat/compat-gettimeofday.c
+        src/compat/compat-strsep.c
+        src/compat/compat-versionhelpers.h
+        src/openvpn/argv.c
+        src/openvpn/argv.h
+        src/openvpn/base64.c
+        src/openvpn/base64.h
+        src/openvpn/basic.h
+        src/openvpn/block_dns.h
+        src/openvpn/block_dns.c
+        src/openvpn/buffer.c
+        src/openvpn/buffer.h
+        src/openvpn/circ_list.h
+        src/openvpn/clinat.c
+        src/openvpn/clinat.h
+        src/openvpn/common.h
+        src/openvpn/comp-lz4.c
+        src/openvpn/comp-lz4.h
+        src/openvpn/comp.c
+        src/openvpn/comp.h
+        src/openvpn/compstub.c
+        src/openvpn/console.c
+        src/openvpn/console_builtin.c
+        src/openvpn/console.h
+        src/openvpn/crypto.c
+        src/openvpn/crypto.h
+        src/openvpn/crypto_backend.h
+        src/openvpn/crypto_openssl.c
+        src/openvpn/crypto_openssl.h
+        src/openvpn/crypto_mbedtls.c
+        src/openvpn/crypto_mbedtls.h
+        src/openvpn/cryptoapi.c
+        src/openvpn/cryptoapi.h
+        src/openvpn/dco.c
+        src/openvpn/dco.h
+        src/openvpn/dco_win.c
+        src/openvpn/dco_win.h
+        src/openvpn/dco_linux.c
+        src/openvpn/dco_linux.h
+        src/openvpn/dco_freebsd.c
+        src/openvpn/dco_freebsd.h
+        src/openvpn/dhcp.c
+        src/openvpn/dhcp.h
+        src/openvpn/dns.c
+        src/openvpn/dns.h
+        src/openvpn/errlevel.h
+        src/openvpn/env_set.c
+        src/openvpn/env_set.h
+        src/openvpn/error.c
+        src/openvpn/error.h
+        src/openvpn/event.c
+        src/openvpn/event.h
+        src/openvpn/fdmisc.c
+        src/openvpn/fdmisc.h
+        src/openvpn/forward.c
+        src/openvpn/forward.h
+        src/openvpn/fragment.c
+        src/openvpn/fragment.h
+        src/openvpn/gremlin.c
+        src/openvpn/gremlin.h
+        src/openvpn/helper.c
+        src/openvpn/helper.h
+        src/openvpn/httpdigest.c
+        src/openvpn/httpdigest.h
+        src/openvpn/init.c
+        src/openvpn/init.h
+        src/openvpn/integer.h
+        src/openvpn/interval.c
+        src/openvpn/interval.h
+        src/openvpn/list.c
+        src/openvpn/list.h
+        src/openvpn/lladdr.c
+        src/openvpn/lladdr.h
+        src/openvpn/lzo.c
+        src/openvpn/lzo.h
+        src/openvpn/manage.c
+        src/openvpn/manage.h
+        src/openvpn/mbuf.c
+        src/openvpn/mbuf.h
+        src/openvpn/memdbg.h
+        src/openvpn/misc.c
+        src/openvpn/misc.h
+        src/openvpn/mroute.c
+        src/openvpn/mroute.h
+        src/openvpn/mss.c
+        src/openvpn/mss.h
+        src/openvpn/mstats.c
+        src/openvpn/mstats.h
+        src/openvpn/mtcp.c
+        src/openvpn/mtcp.h
+        src/openvpn/mtu.c
+        src/openvpn/mtu.h
+        src/openvpn/mudp.c
+        src/openvpn/mudp.h
+        src/openvpn/multi.c
+        src/openvpn/multi.h
+        src/openvpn/ntlm.c
+        src/openvpn/ntlm.h
+        src/openvpn/occ.c
+        src/openvpn/occ.h
+        src/openvpn/openvpn.c
+        src/openvpn/openvpn.h
+        src/openvpn/options.c
+        src/openvpn/options.h
+        src/openvpn/options_util.c
+        src/openvpn/options_util.h
+        src/openvpn/otime.c
+        src/openvpn/otime.h
+        src/openvpn/ovpn_dco_win.h
+        src/openvpn/packet_id.c
+        src/openvpn/packet_id.h
+        src/openvpn/perf.c
+        src/openvpn/perf.h
+        src/openvpn/ping.c
+        src/openvpn/ping.h
+        src/openvpn/pkcs11.c
+        src/openvpn/pkcs11.h
+        src/openvpn/pkcs11_backend.h
+        src/openvpn/pkcs11_openssl.c
+        src/openvpn/pkcs11_mbedtls.c
+        src/openvpn/platform.c
+        src/openvpn/platform.h
+        src/openvpn/plugin.c
+        src/openvpn/plugin.h
+        src/openvpn/pool.c
+        src/openvpn/pool.h
+        src/openvpn/proto.c
+        src/openvpn/proto.h
+        src/openvpn/proxy.c
+        src/openvpn/proxy.h
+        src/openvpn/ps.c
+        src/openvpn/ps.h
+        src/openvpn/push.c
+        src/openvpn/push.h
+        src/openvpn/pushlist.h
+        src/openvpn/reliable.c
+        src/openvpn/reliable.h
+        src/openvpn/route.c
+        src/openvpn/route.h
+        src/openvpn/run_command.c
+        src/openvpn/run_command.h
+        src/openvpn/schedule.c
+        src/openvpn/schedule.h
+        src/openvpn/session_id.c
+        src/openvpn/session_id.h
+        src/openvpn/shaper.c
+        src/openvpn/shaper.h
+        src/openvpn/sig.c
+        src/openvpn/sig.h
+        src/openvpn/socket.c
+        src/openvpn/socket.h
+        src/openvpn/socks.c
+        src/openvpn/socks.h
+        src/openvpn/ssl.c
+        src/openvpn/ssl.h
+        src/openvpn/ssl_backend.h
+        src/openvpn/ssl_common.h
+        src/openvpn/ssl_openssl.c
+        src/openvpn/ssl_openssl.h
+        src/openvpn/ssl_mbedtls.c
+        src/openvpn/ssl_mbedtls.h
+        src/openvpn/ssl_verify.c
+        src/openvpn/ssl_verify.h
+        src/openvpn/ssl_verify_backend.h
+        src/openvpn/ssl_verify_openssl.c
+        src/openvpn/ssl_verify_openssl.h
+        src/openvpn/ssl_verify_mbedtls.c
+        src/openvpn/ssl_verify_mbedtls.h
+        src/openvpn/status.c
+        src/openvpn/status.h
+        src/openvpn/syshead.h
+        src/openvpn/tls_crypt.c
+        src/openvpn/tun.c
+        src/openvpn/tun.h
+        src/openvpn/networking_sitnl.c
+        src/openvpn/networking_freebsd.c
+        src/openvpn/auth_token.c
+        src/openvpn/auth_token.h
+        src/openvpn/ssl_ncp.c
+        src/openvpn/ssl_ncp.h
+        src/openvpn/ssl_pkt.c
+        src/openvpn/ssl_pkt.h
+        src/openvpn/ssl_util.c
+        src/openvpn/ssl_util.h
+        src/openvpn/vlan.c
+        src/openvpn/vlan.h
+        src/openvpn/win32.c
+        src/openvpn/win32-util.c
+        src/openvpn/win32.h
+        src/openvpn/win32-util.h
+        src/openvpn/xkey_helper.c
+        src/openvpn/xkey_provider.c
+        )
+
+add_executable(openvpn ${SOURCE_FILES})
+
+add_library_deps(openvpn)
+
+if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
+    target_link_libraries(openvpn PUBLIC -ldl)
+
+    find_package(PkgConfig)
+    pkg_search_module(LIBNL REQUIRED libnl-genl-3.0)
+
+    target_link_libraries(openvpn PUBLIC ${LIBNL_LIBRARIES})
+    target_include_directories(openvpn PRIVATE ${LIBNL_INCLUDE_DIRS})
+endif ()
+
+
+if (MINGW)
+    target_link_options(openvpn PRIVATE -municode)
+endif ()
+
+if (NOT WIN32)
+    find_library(resolv resolv)
+    # some platform like BSDs already include resolver functionality in the libc and not have an extra resolv library
+    if (${resolv} OR APPLE)
+        target_link_libraries(openvpn PUBLIC -lresolv)
+    endif ()
+endif ()
+
+
+pkg_search_module(cmocka cmocka REQUIRED IMPORTED_TARGET)
+enable_testing()
+
+SET(unit_tests "test_packet_id" "test_crypto" "test_ncp" "test_auth_token" "test_misc" "test_buffer" "test_provider" "test_pkt")
+
+# These tests work on only on Linux since they depend on special linker features
+if (WIN32)
+    LIST(APPEND unit_tests "test_cryptoapi")
+elseif (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
+    LIST(APPEND unit_tests "test_networking" "test_tls_crypt" "test_argv")
+endif ()
+
+
+FOREACH (test_name ${unit_tests})
+    add_executable(${test_name}
+            tests/unit_tests/openvpn/${test_name}.c
+            tests/unit_tests/openvpn/mock_msg.c
+            src/openvpn/platform.c
+            src/openvpn/crypto_mbedtls.c
+            src/openvpn/crypto_openssl.c
+            src/openvpn/crypto.c
+            src/openvpn/otime.c
+            src/openvpn/packet_id.c
+            src/openvpn/base64.c
+            src/openvpn/win32-util.c
+            src/openvpn/mtu.c
+            src/openvpn/networking_sitnl.c
+            src/compat/compat-strsep.c
+            src/compat/compat-gettimeofday.c
+            src/openvpn/ssl_util.c
+            src/openvpn/reliable.c
+            src/openvpn/session_id.c
+            src/openvpn/mss.c
+            src/openvpn/xkey_provider.c
+            )
+
+    add_library_deps(${test_name})
+    target_link_libraries(${test_name} PUBLIC PkgConfig::cmocka)
+
+    target_include_directories(${test_name} PRIVATE src/openvpn)
+
+    if (NOT ${test_name} STREQUAL "test_buffer")
+        target_sources(${test_name} PRIVATE
+                src/openvpn/buffer.c
+                )
+    endif ()
+    add_test(NAME ${test_name} COMMAND ${test_name})
+ENDFOREACH ()
+
+target_sources(test_pkt PRIVATE
+        src/openvpn/argv.c
+        src/openvpn/env_set.c
+        src/openvpn/reliable.c
+        src/openvpn/run_command.c
+        src/openvpn/session_id.c
+        src/openvpn/ssl_pkt.c
+        src/openvpn/tls_crypt.c
+        )
+
+if (TARGET test_cryptoapi)
+    target_sources(test_cryptoapi PRIVATE
+            src/openvpn/xkey_helper.c
+            src/openvpn/xkey_provider.c
+            )
+endif ()
+
+target_sources(test_provider PRIVATE
+        src/openvpn/xkey_provider.c
+        src/openvpn/xkey_helper.c
+        )
+
+target_sources(test_misc PRIVATE
+        src/openvpn/options_util.c
+        )
+
+IF (TARGET test_tls_crypt)
+    target_sources(test_tls_crypt PRIVATE
+            src/openvpn/argv.c
+            src/openvpn/env_set.c
+            src/openvpn/run_command.c)
+endif ()
+
+if (TARGET test_argv)
+    target_sources(test_argv PRIVATE
+            src/openvpn/argv.c
+            src/openvpn/env_set.c
+            src/openvpn/run_command.c)
+endif ()
+
+
+FOREACH (test_name "networking" "tls_crypt" "argv")
+    if (TARGET test_${test_name})
+        target_link_options(test_${test_name} PRIVATE -Wl,--wrap=parse_line)
+    endif ()
+ENDFOREACH ()
+
+if (TARGET test_tls_crypt)
+    target_link_options("test_tls_crypt" PRIVATE
+            -Wl,--wrap=buffer_read_from_file
+            -Wl,--wrap=buffer_write_file
+            -Wl,--wrap=rand_bytes)
+ENDIF ()
\ No newline at end of file
diff --git a/config.h.cmake.in b/config.h.cmake.in
new file mode 100644
index 0000000..6185971
--- /dev/null
+++ b/config.h.cmake.in
@@ -0,0 +1,492 @@ 
+
+/* Configuration settings */
+#define CONFIGURE_DEFINES "N/A"
+
+/* Enable async push */
+#cmakedefine ENABLE_ASYNC_PUSH
+
+/* Use mbed TLS library */
+#cmakedefine ENABLE_CRYPTO_MBEDTLS
+
+/* Use Openssl */
+#cmakedefine ENABLE_CRYPTO_OPENSSL
+
+/* Use wolfSSL crypto library */
+#cmakedefine ENABLE_CRYPTO_WOLFSSL
+
+/* Enable shared data channel offload */
+#cmakedefine ENABLE_DCO
+
+/* Enable debugging support (needed for verb>=4) */
+#define ENABLE_DEBUG 1
+
+/* We have persist tun capability */
+#cmakedefine ENABLE_FEATURE_TUN_PERSIST
+
+/* Enable internal fragmentation support */
+#define ENABLE_FRAGMENT 1
+
+/* Enable linux data channel offload */
+#cmakedefine ENABLE_LINUXDCO
+
+/* Enable LZ4 compression library */
+#cmakedefine ENABLE_LZ4
+
+/* Enable LZO compression library */
+#cmakedefine ENABLE_LZO
+
+/* Enable management server capability */
+#define ENABLE_MANAGEMENT 1
+
+/* Enable OFB and CFB cipher modes */
+#define ENABLE_OFB_CFB_MODE
+
+/* Enable PKCS11 */
+/* #undef ENABLE_PKCS11 */
+
+/* Enable plug-in support */
+#define ENABLE_PLUGIN 1
+
+/* Enable TCP Server port sharing */
+#cmakedefine ENABLE_PORT_SHARE
+
+/* SELinux support */
+#cmakedefine ENABLE_SELINUX
+
+/* enable sitnl support */
+#cmakedefine ENABLE_SITNL
+
+/* Enable systemd integration */
+/* #undef ENABLE_SYSTEMD */
+
+/* Enable --x509-username-field feature */
+#cmakedefine ENABLE_X509ALTUSERNAME
+
+/* Compiler supports anonymous unions */
+#define HAVE_ANONYMOUS_UNION_SUPPORT
+
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#cmakedefine HAVE_ARPA_INET_H 1
+
+/* Define to 1 if you have the `basename' function. */
+#cmakedefine HAVE_BASENAME
+
+/* Define to 1 if you have the `chdir' function. */
+#cmakedefine HAVE_CHDIR
+
+/* Define to 1 if you have the `chroot' function. */
+#cmakedefine HAVE_CHROOT
+
+/* Define to 1 if you have the `chsize' function. */
+#cmakedefine HAVE_CHSIZE
+
+/* struct cmsghdr needed for extended socket error support */
+#cmakedefine HAVE_CMSGHDR
+
+/* Define to 1 if you have the `daemon' function. */
+#cmakedefine HAVE_DAEMON
+
+/* Define to 1 if you have the declaration of `SO_MARK', and to 0 if you
+don't. */
+#cmakedefine01 HAVE_DECL_SO_MARK
+
+/* Define to 1 if you have the <direct.h> header file. */
+#cmakedefine HAVE_DIRECT_H
+
+/* Define to 1 if you have the `dirname' function. */
+#cmakedefine HAVE_DIRNAME
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#cmakedefine HAVE_DLFCN_H
+
+/* Define to 1 if you have the <dmalloc.h> header file. */
+#cmakedefine HAVE_DMALLOC_H
+
+/* Define to 1 if you have the `dup' function. */
+#cmakedefine HAVE_DUP
+
+/* Define to 1 if you have the `dup2' function. */
+#cmakedefine HAVE_DUP2
+
+/* Define to 1 if you have the `epoll_create' function. */
+#cmakedefine HAVE_EPOLL_CREATE
+
+/* Define to 1 if you have the <err.h> header file. */
+#cmakedefine HAVE_ERR_H
+
+/* Crypto library supports keying material exporter */
+#define HAVE_EXPORT_KEYING_MATERIAL 1
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#cmakedefine HAVE_FCNTL_H
+
+/* Define to 1 if you have the `fork' function. */
+#cmakedefine HAVE_FORK
+#cmakedefine HAVE_EXECVE
+
+/* Define to 1 if you have the `ftruncate' function. */
+#cmakedefine HAVE_FTRUNCATE
+
+/* Define to 1 if you have the `getgrnam' function. */
+#cmakedefine HAVE_GETGRNAM
+
+/* Define to 1 if you have the `getpeereid' function. */
+#cmakedefine HAVE_GETPEEREID
+
+/* Define to 1 if you have the `getpwnam' function. */
+#cmakedefine HAVE_GETPWNAM
+
+/* Define to 1 if you have the `getrlimit' function. */
+#undef HAVE_GETRLIMIT
+
+/* Define to 1 if you have the `getsockname' function. */
+#cmakedefine HAVE_GETSOCKNAME
+
+/* Define to 1 if you have the `gettimeofday' function. */
+#cmakedefine HAVE_GETTIMEOFDAY
+
+/* Define to 1 if you have the <grp.h> header file. */
+#cmakedefine HAVE_GRP_H
+
+/* struct in_pktinfo needed for IP_PKTINFO support */
+#cmakedefine HAVE_IN_PKTINFO
+
+/* Define to 1 if you have the <io.h> header file. */
+#cmakedefine HAVE_IO_H
+
+/* struct in_pktinfo.ipi_spec_dst needed for IP_PKTINFO support */
+#cmakedefine HAVE_IPI_SPEC_DST
+
+/* Define to 1 if you have the <libgen.h> header file. */
+#cmakedefine HAVE_LIBGEN_H
+
+/* Define to 1 if you have the <limits.h> header file. */
+#define HAVE_LIMITS_H 1
+
+/* Define to 1 if you have the <linux/if_tun.h> header file. */
+#cmakedefine HAVE_LINUX_IF_TUN_H
+
+/* Define to 1 if you have the <linux/sockios.h> header file. */
+#cmakedefine HAVE_LINUX_SOCKIOS_H
+
+/* Define to 1 if you have the <linux/types.h> header file. */
+#cmakedefine HAVE_LINUX_TYPES_H
+
+/* Define to 1 if you have the <lzoconf.h> header file. */
+#define HAVE_LZO_CONF_H
+
+/* Define to 1 if you have the <lzo1x.h> header file. */
+#define HAVE_LZO1X_H 1
+
+/* Define to 1 if you have the <lzoutil.h> header file. */
+#define HAVE_LZOUTIL_H 1
+
+/* Define to 1 if you have the `mlockall' function. */
+#cmakedefine HAVE_MLOCKALL
+
+/* struct msghdr needed for extended socket error support */
+#cmakedefine HAVE_MSGHDR
+
+/* Define to 1 if you have the <netdb.h> header file. */
+#cmakedefine HAVE_NETDB_H
+
+/* Define to 1 if you have the <netinet/in.h> header file. */
+#cmakedefine HAVE_NETINET_IN_H
+
+/* Define to 1 if you have the <netinet/in_systm.h> header file. */
+#undef HAVE_NETINET_IN_SYSTM_H
+
+/* Define to 1 if you have the <netinet/ip.h> header file. */
+#cmakedefine HAVE_NETINET_IP_H
+
+/* Define to 1 if you have the <netinet/tcp.h> header file. */
+#undef HAVE_NETINET_TCP_H
+
+/* Define to 1 if you have the <net/if.h> header file. */
+#cmakedefine HAVE_NET_IF_H
+
+/* Define to 1 if you have the <net/if_tun.h> header file. */
+#cmakedefine HAVE_NET_IF_TUN_H
+
+/* Define to 1 if you have the <net/if_utun.h> header file. */
+#cmakedefine01 HAVE_NET_IF_UTUN_H
+
+/* Define to 1 if you have the <net/tun/if_tun.h> header file. */
+#cmakedefine HAVE_NET_TUN_IF_TUN_H
+
+/* Define to 1 if you have the `nice' function. */
+#undef HAVE_NICE
+
+/* Define to 1 if you have the `openlog' function. */
+#undef HAVE_OPENLOG
+
+/* OpenSSL engine support available */
+#undef HAVE_OPENSSL_ENGINE
+
+/* Define to 1 if you have the `poll' function. */
+#undef HAVE_POLL
+
+/* Define to 1 if you have the <poll.h> header file. */
+#cmakedefine HAVE_POLL_H
+
+/* Define to 1 if you have the `putenv' function. */
+#undef HAVE_PUTENV
+
+/* Define to 1 if you have the <pwd.h> header file. */
+#cmakedefine HAVE_PWD_H
+
+/* Define to 1 if you have the `readv' function. */
+#undef HAVE_READV
+
+/* Define to 1 if you have the `recvmsg' function. */
+#cmakedefine HAVE_RECVMSG
+#cmakedefine HAVE_SENDMSG
+
+/* Define to 1 if you have the <resolv.h> header file. */
+#cmakedefine HAVE_RESOLV_H
+
+/* sa_family_t, needed to hold AF_* info */
+#cmakedefine HAVE_SA_FAMILY_T
+
+/* Define to 1 if you have the `sd_booted' function. */
+#undef HAVE_SD_BOOTED
+
+/* Define to 1 if you have the `setgid' function. */
+#cmakedefine HAVE_SETGID
+
+/* Define to 1 if you have the `setgroups' function. */
+#undef HAVE_SETGROUPS
+
+/* Define to 1 if you have the `setsid' function. */
+#undef HAVE_SETSID
+
+/* Define to 1 if you have the `setsockopt' function. */
+#define HAVE_SETSOCKOPT 1
+
+/* Define to 1 if you have the `setuid' function. */
+#cmakedefine HAVE_SETUID
+
+/* Define to 1 if you have the <signal.h> header file. */
+#undef HAVE_SIGNAL_H
+
+/* Define to 1 if you have the `socket' function. */
+#undef HAVE_SOCKET
+
+/* struct sock_extended_err needed for extended socket error support */
+#undef HAVE_SOCK_EXTENDED_ERR
+
+/* Define to 1 if you have the `stat' function. */
+#define HAVE_STAT 1
+
+/* Define to 1 if you have the <stdarg.h> header file. */
+#define HAVE_STDARG_H 1
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdio.h> header file. */
+#define HAVE_STDIO_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the `strdup' function. */
+#undef HAVE_STRDUP
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the `strsep' function. */
+#undef HAVE_STRSEP
+
+/* Define to 1 if you have the `syslog' function. */
+#undef HAVE_SYSLOG
+
+/* Define to 1 if you have the <syslog.h> header file. */
+#cmakedefine HAVE_SYSLOG_H
+
+/* Define to 1 if you have the `system' function. */
+#undef HAVE_SYSTEM
+
+/* Define to 1 if you have the <systemd/sd-daemon.h> header file. */
+#undef HAVE_SYSTEMD_SD_DAEMON_H
+
+/* Define to 1 if you have the <sys/epoll.h> header file. */
+#cmakedefine HAVE_SYS_EPOLL_H
+
+/* Define to 1 if you have the <sys/file.h> header file. */
+#undef HAVE_SYS_FILE_H
+
+/* Define to 1 if you have the <sys/inotify.h> header file. */
+#cmakedefine HAVE_SYS_INOTIFY_H
+
+/* Define to 1 if you have the <sys/ioctl.h> header file. */
+#cmakedefine HAVE_SYS_IOCTL_H
+
+/* Define to 1 if you have the <sys/kern_control.h> header file. */
+#undef HAVE_SYS_KERN_CONTROL_H
+
+/* Define to 1 if you have the <sys/mman.h> header file. */
+#cmakedefine HAVE_SYS_MMAN_H
+
+/* Define to 1 if you have the <sys/socket.h> header file. */
+#cmakedefine HAVE_SYS_SOCKET_H
+
+/* Define to 1 if you have the <sys/sockio.h> header file. */
+#undef HAVE_SYS_SOCKIO_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#cmakedefine HAVE_SYS_TIME_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <sys/uio.h> header file. */
+#cmakedefine HAVE_SYS_UIO_H
+
+/* Define to 1 if you have the <sys/un.h> header file. */
+#cmakedefine HAVE_SYS_UN_H
+
+/* Define to 1 if you have the <sys/wait.h> header file. */
+#cmakedefine HAVE_SYS_WAIT_H
+
+/* Define to 1 if you have the <tap-windows.h> header file. */
+#undef HAVE_TAP_WINDOWS_H
+
+/* Define to 1 if you have the `time' function. */
+#define HAVE_TIME 1
+
+/* Define to 1 if you have the <time.h> header file. */
+#define HAVE_TIME_H 1
+
+/* Define to 1 if you have the <uapi.h> header file. */
+#undef HAVE_UAPI_H
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#cmakedefine HAVE_UNISTD_H
+
+/* Define to 1 if you have the <valgrind/memcheck.h> header file. */
+#undef HAVE_VALGRIND_MEMCHECK_H
+
+/* Define to 1 if you have the <versionhelpers.h> header file. */
+#undef HAVE_VERSIONHELPERS_H
+
+/* Define to 1 if you have the `vfork' function. */
+#undef HAVE_VFORK
+
+/* Define to 1 if you have the <vfork.h> header file. */
+#undef HAVE_VFORK_H
+
+/* Define to 1 if you have the `vsnprintf' function. */
+#undef HAVE_VSNPRINTF
+
+/* we always assume a recent mbed TLS version */
+#define HAVE_CTR_DRBG_UPDATE_RET 1
+
+/* Path to ifconfig tool */
+#define IFCONFIG_PATH "@IFCONFIG_PATH@"
+
+/* Path to iproute tool */
+#define IPROUTE_PATH "@IPROUTE_PATH@"
+
+/* Path to route tool */
+#define ROUTE_PATH "@ROUTE_PATH@"
+
+/* OpenVPN major version - integer */
+#undef OPENVPN_VERSION_MAJOR
+
+/* OpenVPN minor version - integer */
+#undef OPENVPN_VERSION_MINOR
+
+/* OpenVPN patch level - may be a string or integer */
+#define OPENVPN_VERSION_PATCH "@OPENVPN_VERSION_PATCH@"
+
+/* Name of package */
+#define PACKAGE "openvpn"
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "OpenVPN"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "OpenVPN @OPENVPN_VERSION_MAJOR@.@OPENVPN_VERSION_MINOR@@OPENVPN_VERSION_PATCH@"
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "@OPENVPN_VERSION_MAJOR@.@OPENVPN_VERSION_MINOR@@OPENVPN_VERSION_PATCH@"
+
+/* OpenVPN major version - integer */
+#define OPENVPN_VERSION_MAJOR @OPENVPN_VERSION_MAJOR@
+
+/* OpenVPN minor version - integer */
+#define OPENVPN_VERSION_MINOR @OPENVPN_VERSION_MINOR@
+
+/* Path to systemd-ask-password tool */
+#undef SYSTEMD_ASK_PASSWORD_PATH
+
+/* systemd is newer than v216 */
+#define SYSTEMD_NEWER_THAN_216
+
+/* The tap-windows id */
+#define TAP_WIN_COMPONENT_ID "tap0901"
+
+/* The tap-windows version number is required for OpenVPN */
+#define TAP_WIN_MIN_MAJOR 9
+
+/* The tap-windows version number is required for OpenVPN */
+#define TAP_WIN_MIN_MINOR 9
+
+/* Are we running on Mac OS X? */
+#cmakedefine TARGET_DARWIN
+
+/* Are we running on FreeBSD? */
+#cmakedefine TARGET_FREEBSD
+
+/* Are we running on Linux? */
+#cmakedefine TARGET_LINUX
+
+/* Are we running WIN32? */
+#cmakedefine TARGET_WIN32
+
+#define TARGET_ALIAS "@CMAKE_SYSTEM_NAME@"
+
+/* Enable GNU extensions on systems that have them.  */
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE 1
+#endif
+
+
+#if defined(_WIN32)
+#include <inttypes.h>
+typedef uint32_t in_addr_t;
+typedef uint16_t in_port_t;
+
+#define SIGHUP    1
+#define SIGINT    2
+#define SIGUSR1   10
+#define SIGUSR2   12
+#define SIGTERM   15
+#endif
+
+#if defined(_MSC_VER)
+#include <BaseTsd.h>
+typedef SSIZE_T ssize_t;
+#define strncasecmp strnicmp
+#define strcasecmp _stricmp
+
+
+#define S_IRUSR 0
+#define S_IWUSR 0
+#define R_OK 4
+#define W_OK 2
+#define X_OK 1
+#define F_OK 0
+#endif
+
diff --git a/src/openvpn/lzo.h b/src/openvpn/lzo.h
index c572354..f05c002 100644
--- a/src/openvpn/lzo.h
+++ b/src/openvpn/lzo.h
@@ -37,7 +37,14 @@ 
  * @addtogroup compression
  * @{
  */
-
+#if defined(HAVE_LZO_CONF_H)
+/* The lzo.h magic gets confused and still wants
+ * to include lzo/lzoconf.h even if our include paths
+ * are setup to include the paths without lzo/ include lzoconf.h to
+ * avoid it being include by lzoutil.h */
+#include <lzodefs.h>
+#include <lzoconf.h>
+#endif
 #if defined(HAVE_LZO_LZOUTIL_H)
 #include <lzo/lzoutil.h>
 #elif defined(HAVE_LZOUTIL_H)