| /*************************************************************************** |
| * _ _ ____ _ |
| * Project ___| | | | _ \| | |
| * / __| | | | |_) | | |
| * | (__| |_| | _ <| |___ |
| * \___|\___/|_| \_\_____| |
| * |
| * Copyright (C) 2016 - 2020, Steve Holme, <steve_holme@hotmail.com>. |
| * |
| * 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.haxx.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. |
| * |
| ***************************************************************************/ |
| |
| #include "curl_setup.h" |
| |
| #if defined(WIN32) |
| |
| #include <curl/curl.h> |
| #include "system_win32.h" |
| #include "curl_sspi.h" |
| #include "warnless.h" |
| |
| /* The last #include files should be: */ |
| #include "curl_memory.h" |
| #include "memdebug.h" |
| |
| LARGE_INTEGER Curl_freq; |
| bool Curl_isVistaOrGreater; |
| |
| /* Handle of iphlpapp.dll */ |
| static HMODULE s_hIpHlpApiDll = NULL; |
| |
| /* Pointer to the if_nametoindex function */ |
| IF_NAMETOINDEX_FN Curl_if_nametoindex = NULL; |
| |
| /* Curl_win32_init() performs win32 global initialization */ |
| CURLcode Curl_win32_init(long flags) |
| { |
| /* CURL_GLOBAL_WIN32 controls the *optional* part of the initialization which |
| is just for Winsock at the moment. Any required win32 initialization |
| should take place after this block. */ |
| if(flags & CURL_GLOBAL_WIN32) { |
| #ifdef USE_WINSOCK |
| WORD wVersionRequested; |
| WSADATA wsaData; |
| int res; |
| |
| #if defined(ENABLE_IPV6) && (USE_WINSOCK < 2) |
| #error IPV6_requires_winsock2 |
| #endif |
| |
| wVersionRequested = MAKEWORD(USE_WINSOCK, USE_WINSOCK); |
| |
| res = WSAStartup(wVersionRequested, &wsaData); |
| |
| if(res != 0) |
| /* Tell the user that we couldn't find a usable */ |
| /* winsock.dll. */ |
| return CURLE_FAILED_INIT; |
| |
| /* Confirm that the Windows Sockets DLL supports what we need.*/ |
| /* Note that if the DLL supports versions greater */ |
| /* than wVersionRequested, it will still return */ |
| /* wVersionRequested in wVersion. wHighVersion contains the */ |
| /* highest supported version. */ |
| |
| if(LOBYTE(wsaData.wVersion) != LOBYTE(wVersionRequested) || |
| HIBYTE(wsaData.wVersion) != HIBYTE(wVersionRequested) ) { |
| /* Tell the user that we couldn't find a usable */ |
| |
| /* winsock.dll. */ |
| WSACleanup(); |
| return CURLE_FAILED_INIT; |
| } |
| /* The Windows Sockets DLL is acceptable. Proceed. */ |
| #elif defined(USE_LWIPSOCK) |
| lwip_init(); |
| #endif |
| } /* CURL_GLOBAL_WIN32 */ |
| |
| #ifdef USE_WINDOWS_SSPI |
| { |
| CURLcode result = Curl_sspi_global_init(); |
| if(result) |
| return result; |
| } |
| #endif |
| |
| s_hIpHlpApiDll = Curl_load_library(TEXT("iphlpapi.dll")); |
| if(s_hIpHlpApiDll) { |
| /* Get the address of the if_nametoindex function */ |
| IF_NAMETOINDEX_FN pIfNameToIndex = |
| CURLX_FUNCTION_CAST(IF_NAMETOINDEX_FN, |
| (GetProcAddress(s_hIpHlpApiDll, "if_nametoindex"))); |
| |
| if(pIfNameToIndex) |
| Curl_if_nametoindex = pIfNameToIndex; |
| } |
| |
| if(Curl_verify_windows_version(6, 0, PLATFORM_WINNT, |
| VERSION_GREATER_THAN_EQUAL)) { |
| Curl_isVistaOrGreater = TRUE; |
| } |
| else |
| Curl_isVistaOrGreater = FALSE; |
| |
| QueryPerformanceFrequency(&Curl_freq); |
| return CURLE_OK; |
| } |
| |
| /* Curl_win32_cleanup() is the opposite of Curl_win32_init() */ |
| void Curl_win32_cleanup(long init_flags) |
| { |
| if(s_hIpHlpApiDll) { |
| FreeLibrary(s_hIpHlpApiDll); |
| s_hIpHlpApiDll = NULL; |
| Curl_if_nametoindex = NULL; |
| } |
| |
| #ifdef USE_WINDOWS_SSPI |
| Curl_sspi_global_cleanup(); |
| #endif |
| |
| if(init_flags & CURL_GLOBAL_WIN32) { |
| #ifdef USE_WINSOCK |
| WSACleanup(); |
| #endif |
| } |
| } |
| |
| #if !defined(LOAD_WITH_ALTERED_SEARCH_PATH) |
| #define LOAD_WITH_ALTERED_SEARCH_PATH 0x00000008 |
| #endif |
| |
| #if !defined(LOAD_LIBRARY_SEARCH_SYSTEM32) |
| #define LOAD_LIBRARY_SEARCH_SYSTEM32 0x00000800 |
| #endif |
| |
| /* We use our own typedef here since some headers might lack these */ |
| typedef HMODULE (APIENTRY *LOADLIBRARYEX_FN)(LPCTSTR, HANDLE, DWORD); |
| |
| /* See function definitions in winbase.h */ |
| #ifdef UNICODE |
| # ifdef _WIN32_WCE |
| # define LOADLIBARYEX L"LoadLibraryExW" |
| # else |
| # define LOADLIBARYEX "LoadLibraryExW" |
| # endif |
| #else |
| # define LOADLIBARYEX "LoadLibraryExA" |
| #endif |
| |
| /* |
| * Curl_verify_windows_version() |
| * |
| * This is used to verify if we are running on a specific windows version. |
| * |
| * Parameters: |
| * |
| * majorVersion [in] - The major version number. |
| * minorVersion [in] - The minor version number. |
| * platform [in] - The optional platform identifier. |
| * condition [in] - The test condition used to specifier whether we are |
| * checking a version less then, equal to or greater than |
| * what is specified in the major and minor version |
| * numbers. |
| * |
| * Returns TRUE if matched; otherwise FALSE. |
| */ |
| bool Curl_verify_windows_version(const unsigned int majorVersion, |
| const unsigned int minorVersion, |
| const PlatformIdentifier platform, |
| const VersionCondition condition) |
| { |
| bool matched = FALSE; |
| |
| #if defined(CURL_WINDOWS_APP) |
| /* We have no way to determine the Windows version from Windows apps, |
| so let's assume we're running on the target Windows version. */ |
| const WORD fullVersion = MAKEWORD(minorVersion, majorVersion); |
| const WORD targetVersion = (WORD)_WIN32_WINNT; |
| |
| switch(condition) { |
| case VERSION_LESS_THAN: |
| matched = targetVersion < fullVersion; |
| break; |
| |
| case VERSION_LESS_THAN_EQUAL: |
| matched = targetVersion <= fullVersion; |
| break; |
| |
| case VERSION_EQUAL: |
| matched = targetVersion == fullVersion; |
| break; |
| |
| case VERSION_GREATER_THAN_EQUAL: |
| matched = targetVersion >= fullVersion; |
| break; |
| |
| case VERSION_GREATER_THAN: |
| matched = targetVersion > fullVersion; |
| break; |
| } |
| |
| if(matched && (platform == PLATFORM_WINDOWS)) { |
| /* we're always running on PLATFORM_WINNT */ |
| matched = FALSE; |
| } |
| #elif !defined(_WIN32_WINNT) || !defined(_WIN32_WINNT_WIN2K) || \ |
| (_WIN32_WINNT < _WIN32_WINNT_WIN2K) |
| OSVERSIONINFO osver; |
| |
| memset(&osver, 0, sizeof(osver)); |
| osver.dwOSVersionInfoSize = sizeof(osver); |
| |
| /* Find out Windows version */ |
| if(GetVersionEx(&osver)) { |
| /* Verify the Operating System version number */ |
| switch(condition) { |
| case VERSION_LESS_THAN: |
| if(osver.dwMajorVersion < majorVersion || |
| (osver.dwMajorVersion == majorVersion && |
| osver.dwMinorVersion < minorVersion)) |
| matched = TRUE; |
| break; |
| |
| case VERSION_LESS_THAN_EQUAL: |
| if(osver.dwMajorVersion < majorVersion || |
| (osver.dwMajorVersion == majorVersion && |
| osver.dwMinorVersion <= minorVersion)) |
| matched = TRUE; |
| break; |
| |
| case VERSION_EQUAL: |
| if(osver.dwMajorVersion == majorVersion && |
| osver.dwMinorVersion == minorVersion) |
| matched = TRUE; |
| break; |
| |
| case VERSION_GREATER_THAN_EQUAL: |
| if(osver.dwMajorVersion > majorVersion || |
| (osver.dwMajorVersion == majorVersion && |
| osver.dwMinorVersion >= minorVersion)) |
| matched = TRUE; |
| break; |
| |
| case VERSION_GREATER_THAN: |
| if(osver.dwMajorVersion > majorVersion || |
| (osver.dwMajorVersion == majorVersion && |
| osver.dwMinorVersion > minorVersion)) |
| matched = TRUE; |
| break; |
| } |
| |
| /* Verify the platform identifier (if necessary) */ |
| if(matched) { |
| switch(platform) { |
| case PLATFORM_WINDOWS: |
| if(osver.dwPlatformId != VER_PLATFORM_WIN32_WINDOWS) |
| matched = FALSE; |
| break; |
| |
| case PLATFORM_WINNT: |
| if(osver.dwPlatformId != VER_PLATFORM_WIN32_NT) |
| matched = FALSE; |
| |
| default: /* like platform == PLATFORM_DONT_CARE */ |
| break; |
| } |
| } |
| } |
| #else |
| ULONGLONG cm = 0; |
| OSVERSIONINFOEX osver; |
| BYTE majorCondition; |
| BYTE minorCondition; |
| BYTE spMajorCondition; |
| BYTE spMinorCondition; |
| |
| switch(condition) { |
| case VERSION_LESS_THAN: |
| majorCondition = VER_LESS; |
| minorCondition = VER_LESS; |
| spMajorCondition = VER_LESS_EQUAL; |
| spMinorCondition = VER_LESS_EQUAL; |
| break; |
| |
| case VERSION_LESS_THAN_EQUAL: |
| majorCondition = VER_LESS_EQUAL; |
| minorCondition = VER_LESS_EQUAL; |
| spMajorCondition = VER_LESS_EQUAL; |
| spMinorCondition = VER_LESS_EQUAL; |
| break; |
| |
| case VERSION_EQUAL: |
| majorCondition = VER_EQUAL; |
| minorCondition = VER_EQUAL; |
| spMajorCondition = VER_GREATER_EQUAL; |
| spMinorCondition = VER_GREATER_EQUAL; |
| break; |
| |
| case VERSION_GREATER_THAN_EQUAL: |
| majorCondition = VER_GREATER_EQUAL; |
| minorCondition = VER_GREATER_EQUAL; |
| spMajorCondition = VER_GREATER_EQUAL; |
| spMinorCondition = VER_GREATER_EQUAL; |
| break; |
| |
| case VERSION_GREATER_THAN: |
| majorCondition = VER_GREATER; |
| minorCondition = VER_GREATER; |
| spMajorCondition = VER_GREATER_EQUAL; |
| spMinorCondition = VER_GREATER_EQUAL; |
| break; |
| |
| default: |
| return FALSE; |
| } |
| |
| memset(&osver, 0, sizeof(osver)); |
| osver.dwOSVersionInfoSize = sizeof(osver); |
| osver.dwMajorVersion = majorVersion; |
| osver.dwMinorVersion = minorVersion; |
| if(platform == PLATFORM_WINDOWS) |
| osver.dwPlatformId = VER_PLATFORM_WIN32_WINDOWS; |
| else if(platform == PLATFORM_WINNT) |
| osver.dwPlatformId = VER_PLATFORM_WIN32_NT; |
| |
| cm = VerSetConditionMask(cm, VER_MAJORVERSION, majorCondition); |
| cm = VerSetConditionMask(cm, VER_MINORVERSION, minorCondition); |
| cm = VerSetConditionMask(cm, VER_SERVICEPACKMAJOR, spMajorCondition); |
| cm = VerSetConditionMask(cm, VER_SERVICEPACKMINOR, spMinorCondition); |
| if(platform != PLATFORM_DONT_CARE) |
| cm = VerSetConditionMask(cm, VER_PLATFORMID, VER_EQUAL); |
| |
| if(VerifyVersionInfo(&osver, (VER_MAJORVERSION | VER_MINORVERSION | |
| VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR), |
| cm)) |
| matched = TRUE; |
| #endif |
| |
| return matched; |
| } |
| |
| /* |
| * Curl_load_library() |
| * |
| * This is used to dynamically load DLLs using the most secure method available |
| * for the version of Windows that we are running on. |
| * |
| * Parameters: |
| * |
| * filename [in] - The filename or full path of the DLL to load. If only the |
| * filename is passed then the DLL will be loaded from the |
| * Windows system directory. |
| * |
| * Returns the handle of the module on success; otherwise NULL. |
| */ |
| HMODULE Curl_load_library(LPCTSTR filename) |
| { |
| #ifndef CURL_WINDOWS_APP |
| HMODULE hModule = NULL; |
| LOADLIBRARYEX_FN pLoadLibraryEx = NULL; |
| |
| /* Get a handle to kernel32 so we can access it's functions at runtime */ |
| HMODULE hKernel32 = GetModuleHandle(TEXT("kernel32")); |
| if(!hKernel32) |
| return NULL; |
| |
| /* Attempt to find LoadLibraryEx() which is only available on Windows 2000 |
| and above */ |
| pLoadLibraryEx = |
| CURLX_FUNCTION_CAST(LOADLIBRARYEX_FN, |
| (GetProcAddress(hKernel32, LOADLIBARYEX))); |
| |
| /* Detect if there's already a path in the filename and load the library if |
| there is. Note: Both back slashes and forward slashes have been supported |
| since the earlier days of DOS at an API level although they are not |
| supported by command prompt */ |
| if(_tcspbrk(filename, TEXT("\\/"))) { |
| /** !checksrc! disable BANNEDFUNC 1 **/ |
| hModule = pLoadLibraryEx ? |
| pLoadLibraryEx(filename, NULL, LOAD_WITH_ALTERED_SEARCH_PATH) : |
| LoadLibrary(filename); |
| } |
| /* Detect if KB2533623 is installed, as LOAD_LIBARY_SEARCH_SYSTEM32 is only |
| supported on Windows Vista, Windows Server 2008, Windows 7 and Windows |
| Server 2008 R2 with this patch or natively on Windows 8 and above */ |
| else if(pLoadLibraryEx && GetProcAddress(hKernel32, "AddDllDirectory")) { |
| /* Load the DLL from the Windows system directory */ |
| hModule = pLoadLibraryEx(filename, NULL, LOAD_LIBRARY_SEARCH_SYSTEM32); |
| } |
| else { |
| /* Attempt to get the Windows system path */ |
| UINT systemdirlen = GetSystemDirectory(NULL, 0); |
| if(systemdirlen) { |
| /* Allocate space for the full DLL path (Room for the null terminator |
| is included in systemdirlen) */ |
| size_t filenamelen = _tcslen(filename); |
| TCHAR *path = malloc(sizeof(TCHAR) * (systemdirlen + 1 + filenamelen)); |
| if(path && GetSystemDirectory(path, systemdirlen)) { |
| /* Calculate the full DLL path */ |
| _tcscpy(path + _tcslen(path), TEXT("\\")); |
| _tcscpy(path + _tcslen(path), filename); |
| |
| /* Load the DLL from the Windows system directory */ |
| /** !checksrc! disable BANNEDFUNC 1 **/ |
| hModule = pLoadLibraryEx ? |
| pLoadLibraryEx(path, NULL, LOAD_WITH_ALTERED_SEARCH_PATH) : |
| LoadLibrary(path); |
| |
| } |
| free(path); |
| } |
| } |
| return hModule; |
| #else |
| /* the Universal Windows Platform (UWP) can't do this */ |
| (void)filename; |
| return NULL; |
| #endif |
| } |
| |
| #endif /* WIN32 */ |
