【QGIS跨平台编译】之【libSSH2跨平台编译】：源码及跨平台编译工程（支撑QGIS跨平台编译，以及二次研发）

# Copyright (c) 2014 Alexander Lamaison <alexander.lamaison@gmail.com> # # Redistribution and use in source and binary forms, # with or without modification, are permitted provided # that the following conditions are met: # # Redistributions of source code must retain the above # copyright notice, this list of conditions and the # following disclaimer. # # Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following # disclaimer in the documentation and/or other materials # provided with the distribution. # # Neither the name of the copyright holder nor the names # of any other contributors may be used to endorse or # promote products derived from this software without # specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND # CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, # INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE # USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY # OF SUCH DAMAGE. include(CheckFunctionExists) include(CheckSymbolExists) include(CheckFunctionExistsMayNeedLibrary) include(CheckIncludeFiles) include(CheckTypeSize) include(CheckSymbolExists) include(CheckNonblockingSocketSupport) include(SocketLibraries) ## Cryptography backend choice set(CRYPTO_BACKEND "" CACHE STRING "The backend to use for cryptography: OpenSSL, Libgcrypt or WinCNG, mbedTLS or empty to try any available") # If the crypto backend was given, rather than searching for the first # we are able to find, the find_package commands must abort configuration # and report to the user. if(CRYPTO_BACKEND) set(SPECIFIC_CRYPTO_REQUIREMENT REQUIRED) endif() if(CRYPTO_BACKEND STREQUAL "OpenSSL" OR NOT CRYPTO_BACKEND) find_package(OpenSSL ${SPECIFIC_CRYPTO_REQUIREMENT}) if(OPENSSL_FOUND) set(CRYPTO_BACKEND "OpenSSL") set(CRYPTO_SOURCES openssl.c openssl.h) list(APPEND PRIVATE_COMPILE_DEFINITIONS LIBSSH2_OPENSSL) list(APPEND PRIVATE_INCLUDE_DIRECTORIES ${OPENSSL_INCLUDE_DIR}) list(APPEND LIBRARIES ${OPENSSL_LIBRARIES}) list(APPEND PC_REQUIRES_PRIVATE libssl libcrypto) if (WIN32) # Statically linking to OpenSSL requires crypt32 for some Windows APIs. # This should really be handled by FindOpenSSL.cmake. list(APPEND LIBRARIES crypt32) list(APPEND PC_LIBS -lcrypt32) find_file(DLL_LIBEAY32 NAMES libeay32.dll crypto.dll libcrypto-1_1.dll libcrypto-1_1-x64.dll HINTS ${_OPENSSL_ROOT_HINTS} PATHS ${_OPENSSL_ROOT_PATHS} PATH_SUFFIXES bin) if (NOT DLL_LIBEAY32) message(WARNING "Unable to find OpenSSL crypto (aka libeay32) DLL, executables may not run") endif() find_file(DLL_SSLEAY32 NAMES ssleay32.dll ssl.dll libssl-1_1.dll libssl-1_1-x64.dll HINTS ${_OPENSSL_ROOT_HINTS} PATHS ${_OPENSSL_ROOT_PATHS} PATH_SUFFIXES bin) if (NOT DLL_SSLEAY32) message(WARNING "Unable to find OpenSSL ssl (aka ssleay32) DLL, executables may not run") endif() if(DLL_LIBEAY32 AND DLL_SSLEAY32) list(APPEND _RUNTIME_DEPENDENCIES ${DLL_LIBEAY32} ${DLL_SSLEAY32}) endif() endif() # Not all OpenSSL have AES-CTR functions. set(SAVE_CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES}) set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_LIBRARIES}) check_function_exists(EVP_aes_128_ctr HAVE_EVP_AES_128_CTR) set(CMAKE_REQUIRED_LIBRARIES ${SAVE_CMAKE_REQUIRED_LIBRARIES}) endif() endif() if(CRYPTO_BACKEND STREQUAL "Libgcrypt" OR NOT CRYPTO_BACKEND) find_package(Libgcrypt ${SPECIFIC_CRYPTO_REQUIREMENT}) if(LIBGCRYPT_FOUND) set(CRYPTO_BACKEND "Libgcrypt") set(CRYPTO_SOURCES libgcrypt.c libgcrypt.h) list(APPEND PRIVATE_COMPILE_DEFINITIONS LIBSSH2_LIBGCRYPT) list(APPEND PRIVATE_INCLUDE_DIRECTORIES ${LIBGCRYPT_INCLUDE_DIRS}) list(APPEND LIBRARIES ${LIBGCRYPT_LIBRARIES}) list(APPEND PC_LIBS -lgcrypt) endif() endif() if(CRYPTO_BACKEND STREQUAL "WinCNG" OR NOT CRYPTO_BACKEND) # The check actually compiles the header. This requires windows.h. check_include_files("windows.h;bcrypt.h" HAVE_BCRYPT_H) if(HAVE_BCRYPT_H) set(CRYPTO_BACKEND "WinCNG") set(CRYPTO_SOURCES wincng.c wincng.h) list(APPEND PRIVATE_COMPILE_DEFINITIONS LIBSSH2_WINCNG) set(HAVE_LIBCRYPT32 TRUE) list(APPEND LIBRARIES bcrypt) list(APPEND PC_LIBS -lbcrypt) check_include_files(ntdef.h HAVE_NTDEF_H) check_include_files(ntstatus.h HAVE_NTSTATUS_H) # Reading keys from files is optional and depends on Wincrypt check_include_files("windows.h;wincrypt.h" HAVE_WINCRYPT_H) if(HAVE_WINCRYPT_H) list(APPEND LIBRARIES crypt32) list(APPEND PC_LIBS -lcrypt32) endif() elseif(${SPECIFIC_CRYPTO_REQUIREMENT} STREQUAL ${REQUIRED}) message(FATAL_ERROR "WinCNG not available") endif() endif() if(CRYPTO_BACKEND STREQUAL "mbedTLS" OR NOT CRYPTO_BACKEND) find_package(mbedTLS ${SPECIFIC_CRYPTO_REQUIREMENT}) if(MBEDTLS_FOUND) set(CRYPTO_BACKEND "mbedTLS") set(CRYPTO_SOURCES mbedtls.c mbedtls.h) list(APPEND PRIVATE_COMPILE_DEFINITIONS LIBSSH2_MBEDTLS) list(APPEND PRIVATE_INCLUDE_DIRECTORIES ${MBEDTLS_INCLUDE_DIR}) list(APPEND LIBRARIES ${MBEDTLS_LIBRARIES}) list(APPEND PC_LIBS -lmbedcrypto) link_directories(${MBEDTLS_LIBRARY_DIR}) endif() endif() if(NOT CRYPTO_BACKEND) message(FATAL_ERROR "No suitable cryptography backend found.") endif() ## Library definition include(GNUInstallDirs) set(SOURCES ${CRYPTO_SOURCES} agent.c agent_win.c blf.h bcrypt_pbkdf.c blowfish.c channel.c channel.h comp.c comp.h crypt.c crypto.h global.c hostkey.c keepalive.c kex.c knownhost.c libssh2_priv.h mac.c mac.h misc.c misc.h packet.c packet.h pem.c publickey.c scp.c session.c session.h sftp.c sftp.h transport.c transport.h userauth.c userauth.h version.c) if(WIN32) list(APPEND SOURCES ${PROJECT_SOURCE_DIR}/win32/libssh2.rc) endif() add_library(libssh2 ${SOURCES}) # we want it to be called libssh2 on all platforms set_target_properties(libssh2 PROPERTIES PREFIX "") target_compile_definitions(libssh2 PRIVATE ${PRIVATE_COMPILE_DEFINITIONS}) target_include_directories(libssh2 PRIVATE "${PROJECT_SOURCE_DIR}/include/" ${PRIVATE_INCLUDE_DIRECTORIES} PUBLIC $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include> $<INSTALL_INTERFACE:$<INSTALL_PREFIX>/${CMAKE_INSTALL_INCLUDEDIR}>) ## Options option(CLEAR_MEMORY "Enable clearing of memory before being freed" ON) if(CLEAR_MEMORY) add_definitions(-DLIBSSH2_CLEAR_MEMORY) endif(CLEAR_MEMORY) add_feature_info("Shared library" BUILD_SHARED_LIBS "creating libssh2 as a shared library (.so/.dll)") option(ENABLE_ZLIB_COMPRESSION "Use zlib for compression") add_feature_info(Compression ENABLE_ZLIB_COMPRESSION "using zlib for compression") if(ENABLE_ZLIB_COMPRESSION) find_package(ZLIB REQUIRED) target_include_directories(libssh2 PRIVATE ${ZLIB_INCLUDE_DIRS}) list(APPEND LIBRARIES ${ZLIB_LIBRARIES}) list(APPEND PC_REQUIRES_PRIVATE zlib) if(ZLIB_FOUND) target_compile_definitions(libssh2 PRIVATE LIBSSH2_HAVE_ZLIB=1) endif() endif() option(ENABLE_CRYPT_NONE "Permit \"none\" cipher -- NOT RECOMMENDED") add_feature_info("\"none\" cipher" ENABLE_CRYPT_NONE "") if(ENABLE_CRYPT_NONE) target_compile_definitions(libssh2 PRIVATE LIBSSH2_CRYPT_NONE=