| #*************************************************************************** |
| # _ _ ____ _ |
| # Project ___| | | | _ \| | |
| # / __| | | | |_) | | |
| # | (__| |_| | _ <| |___ |
| # \___|\___/|_| \_\_____| |
| # |
| # Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. |
| # |
| # This software is licensed as described in the file COPYING, which |
| # you should have received as part of this distribution. The terms |
| # are also available at https://curl.se/docs/copyright.html. |
| # |
| # You may opt to use, copy, modify, merge, publish, distribute and/or sell |
| # copies of the Software, and permit persons to whom the Software is |
| # furnished to do so, under the terms of the COPYING file. |
| # |
| # This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| # KIND, either express or implied. |
| # |
| # SPDX-License-Identifier: curl |
| # |
| ########################################################################### |
| # Find the GSS Kerberos library |
| # |
| # Input variables: |
| # |
| # - `GSS_ROOT_DIR`: Absolute path to the root installation of GSS. (also supported as environment) |
| # |
| # Defines: |
| # |
| # - `GSS_FOUND`: System has a GSS library. |
| # - `GSS_VERSION`: This is set to version advertised by pkg-config or read from manifest. |
| # In case the library is found but no version info available it is set to "unknown" |
| # - `CURL::gss`: GSS library target. |
| # - `CURL_GSS_FLAVOUR`: Custom property. "GNU" or "MIT" if detected. |
| |
| set(_gnu_modname "gss") |
| set(_mit_modname "mit-krb5-gssapi") |
| |
| include(CheckIncludeFile) |
| include(CheckIncludeFiles) |
| include(CheckTypeSize) |
| |
| set(_gss_root_hints "${GSS_ROOT_DIR}" "$ENV{GSS_ROOT_DIR}") |
| |
| set(_gss_CFLAGS "") |
| set(_gss_LIBRARY_DIRS "") |
| |
| # Try to find library using system pkg-config if user did not specify root dir |
| if(NOT GSS_ROOT_DIR AND NOT "$ENV{GSS_ROOT_DIR}") |
| if(CURL_USE_PKGCONFIG) |
| find_package(PkgConfig QUIET) |
| pkg_search_module(_gss ${_gnu_modname} ${_mit_modname}) |
| list(APPEND _gss_root_hints "${_gss_PREFIX}") |
| set(_gss_version "${_gss_VERSION}") |
| endif() |
| if(WIN32) |
| list(APPEND _gss_root_hints "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MIT\\Kerberos;InstallDir]") |
| endif() |
| endif() |
| |
| if(NOT _gss_FOUND) # Not found by pkg-config. Let us take more traditional approach. |
| find_file(_gss_configure_script NAMES "krb5-config" PATH_SUFFIXES "bin" HINTS ${_gss_root_hints} |
| NO_CMAKE_PATH NO_CMAKE_ENVIRONMENT_PATH) |
| # If not found in user-supplied directories, maybe system knows better |
| find_file(_gss_configure_script NAMES "krb5-config" PATH_SUFFIXES "bin") |
| |
| if(_gss_configure_script) |
| |
| set(_gss_INCLUDE_DIRS "") |
| set(_gss_LIBRARIES "") |
| |
| execute_process(COMMAND ${_gss_configure_script} "--cflags" "gssapi" |
| OUTPUT_VARIABLE _gss_cflags_raw |
| RESULT_VARIABLE _gss_configure_failed |
| OUTPUT_STRIP_TRAILING_WHITESPACE) |
| message(STATUS "FindGSS krb5-config --cflags: ${_gss_cflags_raw}") |
| |
| if(NOT _gss_configure_failed) # 0 means success |
| # Should also work in an odd case when multiple directories are given. |
| string(STRIP "${_gss_cflags_raw}" _gss_cflags_raw) |
| string(REGEX REPLACE " +-(I)" ";-\\1" _gss_cflags_raw "${_gss_cflags_raw}") |
| string(REGEX REPLACE " +-([^I][^ \\t;]*)" ";-\\1" _gss_cflags_raw "${_gss_cflags_raw}") |
| |
| foreach(_flag IN LISTS _gss_cflags_raw) |
| if(_flag MATCHES "^-I") |
| string(REGEX REPLACE "^-I" "" _flag "${_flag}") |
| list(APPEND _gss_INCLUDE_DIRS "${_flag}") |
| else() |
| list(APPEND _gss_CFLAGS "${_flag}") |
| endif() |
| endforeach() |
| endif() |
| |
| execute_process(COMMAND ${_gss_configure_script} "--libs" "gssapi" |
| OUTPUT_VARIABLE _gss_lib_flags |
| RESULT_VARIABLE _gss_configure_failed |
| OUTPUT_STRIP_TRAILING_WHITESPACE) |
| message(STATUS "FindGSS krb5-config --libs: ${_gss_lib_flags}") |
| |
| if(NOT _gss_configure_failed) # 0 means success |
| # This script gives us libraries and link directories. |
| string(STRIP "${_gss_lib_flags}" _gss_lib_flags) |
| string(REGEX REPLACE " +-(L|l)" ";-\\1" _gss_lib_flags "${_gss_lib_flags}") |
| string(REGEX REPLACE " +-([^Ll][^ \\t;]*)" ";-\\1" _gss_lib_flags "${_gss_lib_flags}") |
| |
| foreach(_flag IN LISTS _gss_lib_flags) |
| if(_flag MATCHES "^-l") |
| string(REGEX REPLACE "^-l" "" _flag "${_flag}") |
| list(APPEND _gss_LIBRARIES "${_flag}") |
| elseif(_flag MATCHES "^-L") |
| string(REGEX REPLACE "^-L" "" _flag "${_flag}") |
| list(APPEND _gss_LIBRARY_DIRS "${_flag}") |
| endif() |
| endforeach() |
| endif() |
| |
| execute_process(COMMAND ${_gss_configure_script} "--version" |
| OUTPUT_VARIABLE _gss_version |
| RESULT_VARIABLE _gss_configure_failed |
| OUTPUT_STRIP_TRAILING_WHITESPACE) |
| |
| # Older versions may not have the "--version" parameter. In this case we just do not care. |
| if(_gss_configure_failed) |
| set(_gss_version 0) |
| else() |
| # Strip prefix string to leave the version number only |
| string(REPLACE "Kerberos 5 release " "" _gss_version "${_gss_version}") |
| endif() |
| |
| execute_process(COMMAND ${_gss_configure_script} "--vendor" |
| OUTPUT_VARIABLE _gss_vendor |
| RESULT_VARIABLE _gss_configure_failed |
| OUTPUT_STRIP_TRAILING_WHITESPACE) |
| |
| # Older versions may not have the "--vendor" parameter. In this case we just do not care. |
| if(NOT _gss_configure_failed AND NOT _gss_vendor MATCHES "Heimdal|heimdal") |
| set(_gss_flavour "MIT") # assume a default, should not really matter |
| endif() |
| |
| else() # Either there is no config script or we are on a platform that does not provide one (Windows?) |
| |
| find_path(_gss_INCLUDE_DIRS NAMES "gssapi/gssapi.h" HINTS ${_gss_root_hints} PATH_SUFFIXES "include" "inc") |
| |
| if(_gss_INCLUDE_DIRS) # We have found something |
| set(_gss_libdir_suffixes "") |
| |
| cmake_push_check_state() |
| list(APPEND CMAKE_REQUIRED_INCLUDES "${_gss_INCLUDE_DIRS}") |
| check_include_files("gssapi/gssapi_generic.h;gssapi/gssapi_krb5.h" _gss_have_mit_headers) |
| cmake_pop_check_state() |
| |
| if(_gss_have_mit_headers) |
| set(_gss_flavour "MIT") |
| if(WIN32) |
| if(CMAKE_SIZEOF_VOID_P EQUAL 8) |
| list(APPEND _gss_libdir_suffixes "lib/AMD64") |
| set(_gss_libname "gssapi64") |
| else() |
| list(APPEND _gss_libdir_suffixes "lib/i386") |
| set(_gss_libname "gssapi32") |
| endif() |
| else() |
| list(APPEND _gss_libdir_suffixes "lib" "lib64") # those suffixes are not checked for HINTS |
| set(_gss_libname "gssapi_krb5") |
| endif() |
| endif() |
| else() |
| find_path(_gss_INCLUDE_DIRS NAMES "gss.h" HINTS ${_gss_root_hints} PATH_SUFFIXES "include") |
| |
| if(_gss_INCLUDE_DIRS) |
| set(_gss_flavour "GNU") |
| set(_gss_pc_requires ${_gnu_modname}) |
| set(_gss_libname "gss") |
| endif() |
| endif() |
| |
| # If we have headers, look up libraries |
| if(_gss_flavour) |
| set(_gss_libdir_hints ${_gss_root_hints}) |
| if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.20) |
| cmake_path(GET _gss_INCLUDE_DIRS PARENT_PATH _gss_calculated_potential_root) |
| else() |
| get_filename_component(_gss_calculated_potential_root "${_gss_INCLUDE_DIRS}" DIRECTORY) |
| endif() |
| list(APPEND _gss_libdir_hints ${_gss_calculated_potential_root}) |
| |
| find_library(_gss_LIBRARIES NAMES ${_gss_libname} HINTS ${_gss_libdir_hints} PATH_SUFFIXES ${_gss_libdir_suffixes}) |
| endif() |
| endif() |
| if(NOT _gss_flavour) |
| message(FATAL_ERROR "GNU or MIT GSS is required") |
| endif() |
| else() |
| # _gss_MODULE_NAME set since CMake 3.16. |
| # _pkg_check_modules_pkg_name is undocumented and used as a fallback for CMake <3.16 versions. |
| if(_gss_MODULE_NAME STREQUAL _gnu_modname OR _pkg_check_modules_pkg_name STREQUAL _gnu_modname) |
| set(_gss_flavour "GNU") |
| set(_gss_pc_requires ${_gnu_modname}) |
| elseif(_gss_MODULE_NAME STREQUAL _mit_modname OR _pkg_check_modules_pkg_name STREQUAL _mit_modname) |
| set(_gss_flavour "MIT") |
| set(_gss_pc_requires ${_mit_modname}) |
| else() |
| message(FATAL_ERROR "GNU or MIT GSS is required") |
| endif() |
| message(STATUS "Found GSS/${_gss_flavour} (via pkg-config): ${_gss_INCLUDE_DIRS} (found version \"${_gss_version}\")") |
| endif() |
| |
| set(GSS_VERSION ${_gss_version}) |
| |
| if(NOT GSS_VERSION) |
| if(_gss_flavour STREQUAL "MIT") |
| if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.24) |
| cmake_host_system_information(RESULT _mit_version QUERY WINDOWS_REGISTRY |
| "HKLM/SOFTWARE/MIT/Kerberos/SDK/CurrentVersion" VALUE "VersionString") |
| else() |
| get_filename_component(_mit_version |
| "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MIT\\Kerberos\\SDK\\CurrentVersion;VersionString]" NAME CACHE) |
| endif() |
| if(WIN32 AND _mit_version) |
| set(GSS_VERSION "${_mit_version}") |
| else() |
| set(GSS_VERSION "MIT Unknown") |
| endif() |
| else() # GNU |
| if(_gss_INCLUDE_DIRS AND EXISTS "${_gss_INCLUDE_DIRS}/gss.h") |
| set(_version_regex "#[\t ]*define[\t ]+GSS_VERSION[\t ]+\"([^\"]*)\"") |
| file(STRINGS "${_gss_INCLUDE_DIRS}/gss.h" _version_str REGEX "${_version_regex}") |
| string(REGEX REPLACE "${_version_regex}" "\\1" _version_str "${_version_str}") |
| set(GSS_VERSION "${_version_str}") |
| unset(_version_regex) |
| unset(_version_str) |
| endif() |
| endif() |
| endif() |
| |
| include(FindPackageHandleStandardArgs) |
| find_package_handle_standard_args(GSS |
| REQUIRED_VARS |
| _gss_flavour |
| _gss_LIBRARIES |
| VERSION_VAR |
| GSS_VERSION |
| FAIL_MESSAGE |
| "Could NOT find GSS, try to set the absolute path to GSS installation root directory in the environment variable GSS_ROOT_DIR" |
| ) |
| |
| mark_as_advanced( |
| _gss_CFLAGS |
| _gss_FOUND |
| _gss_INCLUDE_DIRS |
| _gss_LIBRARIES |
| _gss_LIBRARY_DIRS |
| _gss_MODULE_NAME |
| _gss_PREFIX |
| _gss_version |
| ) |
| |
| if(GSS_FOUND) |
| if(NOT TARGET CURL::gss) |
| add_library(CURL::gss INTERFACE IMPORTED) |
| set_target_properties(CURL::gss PROPERTIES |
| INTERFACE_CURL_GSS_FLAVOUR "${_gss_flavour}" |
| INTERFACE_LIBCURL_PC_MODULES "${_gss_pc_requires}" |
| INTERFACE_COMPILE_OPTIONS "${_gss_CFLAGS}" |
| INTERFACE_INCLUDE_DIRECTORIES "${_gss_INCLUDE_DIRS}" |
| INTERFACE_LINK_DIRECTORIES "${_gss_LIBRARY_DIRS}" |
| INTERFACE_LINK_LIBRARIES "${_gss_LIBRARIES}") |
| endif() |
| endif() |
