Drop obsolete CyaSSL and PolarSSL crypto backends (#4495)

* Drop support for CyaSSL (keep WolfSSL)

* Drop support for PolarSSL (keep MbedTLS)

cmake/FindCyaSSL.cmake

@@ -1,62 +0,0 @@
-if(CYASSL_PREFER_STATIC_LIB)
-    set(CYASSL_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
-    if(WIN32)
-        set(CMAKE_FIND_LIBRARY_SUFFIXES .a .lib ${CMAKE_FIND_LIBRARY_SUFFIXES})
-    else()
-        set(CMAKE_FIND_LIBRARY_SUFFIXES .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
-    endif()
-endif()
-
-if(UNIX)
-    find_package(PkgConfig QUIET)
-    pkg_check_modules(_WOLFSSL QUIET wolfssl)
-endif()
-
-find_path(WOLFSSL_INCLUDE_DIR NAMES wolfssl/version.h HINTS ${_WOLFSSL_INCLUDEDIR})
-find_library(WOLFSSL_LIBRARY NAMES wolfssl HINTS ${_WOLFSSL_LIBDIR})
-if(WOLFSSL_INCLUDE_DIR AND WOLFSSL_LIBRARY)
-    set(CYASSL_INCLUDE_DIR ${WOLFSSL_INCLUDE_DIR})
-    set(CYASSL_LIBRARY ${WOLFSSL_LIBRARY})
-    set(CYASSL_VERSION ${_WOLFSSL_VERSION})
-    set(CYASSL_IS_WOLFSSL ON)
-else()
-    if(UNIX)
-        pkg_check_modules(_CYASSL QUIET cyassl)
-    endif()
-
-    find_path(CYASSL_INCLUDE_DIR NAMES cyassl/version.h HINTS ${_CYASSL_INCLUDEDIR})
-    find_library(CYASSL_LIBRARY NAMES cyassl HINTS ${_CYASSL_LIBDIR})
-    set(CYASSL_VERSION ${_CYASSL_VERSION})
-    set(CYASSL_IS_WOLFSSL OFF)
-endif()
-
-if(NOT CYASSL_VERSION AND CYASSL_INCLUDE_DIR)
-    if(CYASSL_IS_WOLFSSL)
-        file(STRINGS "${CYASSL_INCLUDE_DIR}/wolfssl/version.h" CYASSL_VERSION_STR REGEX "^#define[\t ]+LIBWOLFSSL_VERSION_STRING[\t ]+\"[^\"]+\"")
-    else()
-        file(STRINGS "${CYASSL_INCLUDE_DIR}/cyassl/version.h" CYASSL_VERSION_STR REGEX "^#define[\t ]+LIBCYASSL_VERSION_STRING[\t ]+\"[^\"]+\"")
-    endif()
-    if(CYASSL_VERSION_STR MATCHES "\"([^\"]+)\"")
-        set(CYASSL_VERSION "${CMAKE_MATCH_1}")
-    endif()
-endif()
-
-set(CYASSL_INCLUDE_DIRS ${CYASSL_INCLUDE_DIR})
-set(CYASSL_LIBRARIES ${CYASSL_LIBRARY})
-
-include(FindPackageHandleStandardArgs)
-
-find_package_handle_standard_args(CyaSSL
-    REQUIRED_VARS
-        CYASSL_LIBRARY
-        CYASSL_INCLUDE_DIR
-    VERSION_VAR
-        CYASSL_VERSION
-)
-
-mark_as_advanced(WOLFSSL_INCLUDE_DIR WOLFSSL_LIBRARY CYASSL_INCLUDE_DIR CYASSL_LIBRARY)
-
-if(CYASSL_PREFER_STATIC_LIB)
-    set(CMAKE_FIND_LIBRARY_SUFFIXES ${CYASSL_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
-    unset(CYASSL_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES)
-endif()

cmake/FindMbedTLS.cmake

@@ -0,0 +1,46 @@
+if(MBEDTLS_PREFER_STATIC_LIB)
+    set(MBEDTLS_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
+    if(WIN32)
+        set(CMAKE_FIND_LIBRARY_SUFFIXES .a .lib ${CMAKE_FIND_LIBRARY_SUFFIXES})
+    else()
+        set(CMAKE_FIND_LIBRARY_SUFFIXES .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
+    endif()
+endif()
+
+if(UNIX)
+    find_package(PkgConfig QUIET)
+    pkg_check_modules(_MBEDTLS QUIET mbedtls)
+endif()
+
+find_path(MBEDTLS_INCLUDE_DIR NAMES mbedtls/version.h HINTS ${_MBEDTLS_INCLUDEDIR})
+find_library(MBEDTLS_LIBRARY NAMES mbedtls HINTS ${_MBEDTLS_LIBDIR})
+find_library(MBEDCRYPTO_LIBRARY NAMES mbedcrypto HINTS ${_MBEDTLS_LIBDIR})
+
+if(_MBEDTLS_VERSION)
+    set(MBEDTLS_VERSION ${_MBEDTLS_VERSION})
+elseif(MBEDTLS_INCLUDE_DIR)
+    file(STRINGS "${MBEDTLS_INCLUDE_DIR}/mbedtls/version.h" MBEDTLS_VERSION_STR REGEX "^#define[\t ]+MBEDTLS_VERSION_STRING[\t ]+\"[^\"]+\"")
+    if(MBEDTLS_VERSION_STR MATCHES "\"([^\"]+)\"")
+        set(MBEDTLS_VERSION "${CMAKE_MATCH_1}")
+    endif()
+endif()
+
+set(MBEDTLS_INCLUDE_DIRS ${MBEDTLS_INCLUDE_DIR})
+set(MBEDTLS_LIBRARIES ${MBEDTLS_LIBRARY} ${MBEDCRYPTO_LIBRARY})
+
+include(FindPackageHandleStandardArgs)
+
+find_package_handle_standard_args(MbedTLS
+    REQUIRED_VARS
+        MBEDTLS_LIBRARY
+        MBEDTLS_INCLUDE_DIR
+    VERSION_VAR
+        MBEDTLS_VERSION
+)
+
+mark_as_advanced(MBEDTLS_INCLUDE_DIR MBEDTLS_LIBRARY MBEDCRYPTO_LIBRARY)
+
+if(MBEDTLS_PREFER_STATIC_LIB)
+    set(CMAKE_FIND_LIBRARY_SUFFIXES ${MBEDTLS_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
+    unset(MBEDTLS_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES)
+endif()

cmake/FindPolarSSL.cmake

@@ -1,67 +0,0 @@
-if(POLARSSL_PREFER_STATIC_LIB)
-    set(POLARSSL_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
-    if(WIN32)
-        set(CMAKE_FIND_LIBRARY_SUFFIXES .a .lib ${CMAKE_FIND_LIBRARY_SUFFIXES})
-    else()
-        set(CMAKE_FIND_LIBRARY_SUFFIXES .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
-    endif()
-endif()
-
-if(UNIX)
-    find_package(PkgConfig QUIET)
-    pkg_check_modules(_MBEDTLS QUIET mbedtls)
-endif()
-
-find_path(MBEDTLS_INCLUDE_DIR NAMES mbedtls/version.h HINTS ${_MBEDTLS_INCLUDEDIR})
-find_library(MBEDTLS_LIBRARY NAMES mbedtls HINTS ${_MBEDTLS_LIBDIR})
-find_library(MBEDCRYPTO_LIBRARY NAMES mbedcrypto HINTS ${_MBEDTLS_LIBDIR})
-if(MBEDTLS_INCLUDE_DIR AND MBEDTLS_LIBRARY)
-    set(POLARSSL_INCLUDE_DIR ${MBEDTLS_INCLUDE_DIR})
-    if(MBEDCRYPTO_LIBRARY)
-        set(POLARSSL_LIBRARY ${MBEDTLS_LIBRARY} ${MBEDCRYPTO_LIBRARY})
-    else()
-        set(POLARSSL_LIBRARY ${MBEDTLS_LIBRARY})
-    endif()
-    set(POLARSSL_VERSION ${_MBEDTLS_VERSION})
-    set(POLARSSL_IS_MBEDTLS ON)
-else()
-    if(UNIX)
-        pkg_check_modules(_POLARSSL QUIET polarssl)
-    endif()
-
-    find_path(POLARSSL_INCLUDE_DIR NAMES polarssl/version.h HINTS ${_POLARSSL_INCLUDEDIR})
-    find_library(POLARSSL_LIBRARY NAMES polarssl HINTS ${_POLARSSL_LIBDIR})
-    set(POLARSSL_VERSION ${_POLARSSL_VERSION})
-    set(POLARSSL_IS_MBEDTLS OFF)
-endif()
-
-if(NOT POLARSSL_VERSION AND POLARSSL_INCLUDE_DIR)
-    if(POLARSSL_IS_MBEDTLS)
-        file(STRINGS "${POLARSSL_INCLUDE_DIR}/mbedtls/version.h" POLARSSL_VERSION_STR REGEX "^#define[\t ]+MBEDTLS_VERSION_STRING[\t ]+\"[^\"]+\"")
-    else()
-        file(STRINGS "${POLARSSL_INCLUDE_DIR}/polarssl/version.h" POLARSSL_VERSION_STR REGEX "^#define[\t ]+POLARSSL_VERSION_STRING[\t ]+\"[^\"]+\"")
-    endif()
-    if(POLARSSL_VERSION_STR MATCHES "\"([^\"]+)\"")
-        set(POLARSSL_VERSION "${CMAKE_MATCH_1}")
-    endif()
-endif()
-
-set(POLARSSL_INCLUDE_DIRS ${POLARSSL_INCLUDE_DIR})
-set(POLARSSL_LIBRARIES ${POLARSSL_LIBRARY})
-
-include(FindPackageHandleStandardArgs)
-
-find_package_handle_standard_args(PolarSSL
-    REQUIRED_VARS
-        POLARSSL_LIBRARY
-        POLARSSL_INCLUDE_DIR
-    VERSION_VAR
-        POLARSSL_VERSION
-)
-
-mark_as_advanced(MBEDTLS_INCLUDE_DIR MBEDTLS_LIBRARY MBEDCRYPTO_LIBRARY POLARSSL_INCLUDE_DIR POLARSSL_LIBRARY)
-
-if(POLARSSL_PREFER_STATIC_LIB)
-    set(CMAKE_FIND_LIBRARY_SUFFIXES ${POLARSSL_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
-    unset(POLARSSL_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES)
-endif()

cmake/FindWolfSSL.cmake

@@ -0,0 +1,45 @@
+if(WOLFSSL_PREFER_STATIC_LIB)
+    set(WOLFSSL_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
+    if(WIN32)
+        set(CMAKE_FIND_LIBRARY_SUFFIXES .a .lib ${CMAKE_FIND_LIBRARY_SUFFIXES})
+    else()
+        set(CMAKE_FIND_LIBRARY_SUFFIXES .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
+    endif()
+endif()
+
+if(UNIX)
+    find_package(PkgConfig QUIET)
+    pkg_check_modules(_WOLFSSL QUIET wolfssl)
+endif()
+
+find_path(WOLFSSL_INCLUDE_DIR NAMES wolfssl/version.h HINTS ${_WOLFSSL_INCLUDEDIR})
+find_library(WOLFSSL_LIBRARY NAMES wolfssl HINTS ${_WOLFSSL_LIBDIR})
+
+if(_WOLFSSL_VERSION)
+    set(WOLFSSL_VERSION ${_WOLFSSL_VERSION})
+elseif(WOLFSSL_INCLUDE_DIR)
+    file(STRINGS "${WOLFSSL_INCLUDE_DIR}/wolfssl/version.h" WOLFSSL_VERSION_STR REGEX "^#define[\t ]+LIBWOLFSSL_VERSION_STRING[\t ]+\"[^\"]+\"")
+    if(WOLFSSL_VERSION_STR MATCHES "\"([^\"]+)\"")
+        set(WOLFSSL_VERSION "${CMAKE_MATCH_1}")
+    endif()
+endif()
+
+set(WOLFSSL_INCLUDE_DIRS ${WOLFSSL_INCLUDE_DIR})
+set(WOLFSSL_LIBRARIES ${WOLFSSL_LIBRARY})
+
+include(FindPackageHandleStandardArgs)
+
+find_package_handle_standard_args(WolfSSL
+    REQUIRED_VARS
+        WOLFSSL_LIBRARY
+        WOLFSSL_INCLUDE_DIR
+    VERSION_VAR
+        WOLFSSL_VERSION
+)
+
+mark_as_advanced(WOLFSSL_INCLUDE_DIR WOLFSSL_LIBRARY)
+
+if(WOLFSSL_PREFER_STATIC_LIB)
+    set(CMAKE_FIND_LIBRARY_SUFFIXES ${WOLFSSL_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
+    unset(WOLFSSL_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES)
+endif()