Alexandre Julliard : kernel32: Implement the LOAD_LIBRARY_AS_IMAGE_RESOURCE flag.
Module: wine Branch: master Commit: e1d8c176efdd04fb2a0f99426e1ad9962589b9ec URL: https://source.winehq.org/git/wine.git/?a=commit;h=e1d8c176efdd04fb2a0f99426... Author: Alexandre Julliard <julliard(a)winehq.org> Date: Thu Mar 1 17:18:03 2018 +0100 kernel32: Implement the LOAD_LIBRARY_AS_IMAGE_RESOURCE flag. Signed-off-by: Alexandre Julliard <julliard(a)winehq.org> --- dlls/kernel32/module.c | 37 +++++++++++++++++++++---------------- dlls/kernel32/tests/loader.c | 26 ++++++++++++++++++++++++-- 2 files changed, 45 insertions(+), 18 deletions(-) diff --git a/dlls/kernel32/module.c b/dlls/kernel32/module.c index a5346db..d232d7d 100644 --- a/dlls/kernel32/module.c +++ b/dlls/kernel32/module.c @@ -1125,12 +1125,14 @@ static BOOL load_library_as_datafile( LPCWSTR name, HMODULE *hmod, DWORD flags ) WCHAR filenameW[MAX_PATH]; HANDLE hFile = INVALID_HANDLE_VALUE; HANDLE mapping; - HMODULE module; + HMODULE module = 0; + DWORD protect = PAGE_READONLY; DWORD sharing = FILE_SHARE_READ; *hmod = 0; if (!(flags & LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE)) sharing |= FILE_SHARE_WRITE; + if (flags & LOAD_LIBRARY_AS_IMAGE_RESOURCE) protect |= SEC_IMAGE; if (SearchPathW( NULL, name, dotDLL, sizeof(filenameW) / sizeof(filenameW[0]), filenameW, NULL )) @@ -1139,22 +1141,28 @@ static BOOL load_library_as_datafile( LPCWSTR name, HMODULE *hmod, DWORD flags ) } if (hFile == INVALID_HANDLE_VALUE) return FALSE; - mapping = CreateFileMappingW( hFile, NULL, PAGE_READONLY, 0, 0, NULL ); - CloseHandle( hFile ); - if (!mapping) return FALSE; + mapping = CreateFileMappingW( hFile, NULL, protect, 0, 0, NULL ); + if (!mapping) goto failed; module = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 ); CloseHandle( mapping ); - if (!module) return FALSE; + if (!module) goto failed; - /* make sure it's a valid PE file */ - if (!RtlImageNtHeader(module)) + if (!(flags & LOAD_LIBRARY_AS_IMAGE_RESOURCE)) { - UnmapViewOfFile( module ); - return FALSE; + /* make sure it's a valid PE file */ + if (!RtlImageNtHeader( module )) goto failed; + *hmod = (HMODULE)((char *)module + 1); /* set bit 0 for data file module */ } - *hmod = (HMODULE)((char *)module + 1); /* set low bit of handle to indicate datafile module */ + else *hmod = (HMODULE)((char *)module + 2); /* set bit 1 for image resource module */ + + CloseHandle( hFile ); return TRUE; + +failed: + if (module) UnmapViewOfFile( module ); + CloseHandle( hFile ); + return FALSE; } @@ -1174,7 +1182,6 @@ static HMODULE load_library( const UNICODE_STRING *libname, DWORD flags ) LOAD_LIBRARY_SEARCH_SYSTEM32 | LOAD_LIBRARY_SEARCH_DEFAULT_DIRS); const DWORD unsupported_flags = (LOAD_IGNORE_CODE_AUTHZ_LEVEL | - LOAD_LIBRARY_AS_IMAGE_RESOURCE | LOAD_LIBRARY_REQUIRE_SIGNED_TARGET); if (!(flags & load_library_search_flags)) flags |= default_search_flags; @@ -1188,7 +1195,7 @@ static HMODULE load_library( const UNICODE_STRING *libname, DWORD flags ) load_path = MODULE_get_dll_load_path( flags & LOAD_WITH_ALTERED_SEARCH_PATH ? libname->Buffer : NULL, -1 ); if (!load_path) return 0; - if (flags & (LOAD_LIBRARY_AS_DATAFILE | LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE)) + if (flags & (LOAD_LIBRARY_AS_DATAFILE | LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE | LOAD_LIBRARY_AS_IMAGE_RESOURCE)) { ULONG_PTR magic; @@ -1337,11 +1344,9 @@ BOOL WINAPI DECLSPEC_HOTPATCH FreeLibrary(HINSTANCE hLibModule) return FALSE; } - if ((ULONG_PTR)hLibModule & 1) + if ((ULONG_PTR)hLibModule & 3) /* this is a datafile module */ { - /* this is a LOAD_LIBRARY_AS_DATAFILE module */ - char *ptr = (char *)hLibModule - 1; - return UnmapViewOfFile( ptr ); + return UnmapViewOfFile( (void *)((ULONG_PTR)hLibModule & ~3) ); } if ((nts = LdrUnloadDll( hLibModule )) == STATUS_SUCCESS) retv = TRUE; diff --git a/dlls/kernel32/tests/loader.c b/dlls/kernel32/tests/loader.c index 0a65bcd..4d1b3e2 100644 --- a/dlls/kernel32/tests/loader.c +++ b/dlls/kernel32/tests/loader.c @@ -849,7 +849,7 @@ static void test_Loader(void) SetLastError(0xdeadbeef); hlib_as_data_file = LoadLibraryExA(dll_name, 0, LOAD_LIBRARY_AS_DATAFILE); ok(hlib_as_data_file != 0, "LoadLibraryEx error %u\n", GetLastError()); - ok((ULONG_PTR)hlib_as_data_file & 1, "hlib_as_data_file is even\n"); + ok(((ULONG_PTR)hlib_as_data_file & 3) == 1, "hlib_as_data_file got %p\n", hlib_as_data_file); hlib = GetModuleHandleA(dll_name); ok(!hlib, "GetModuleHandle should fail\n"); @@ -865,7 +865,7 @@ static void test_Loader(void) SetLastError(0xdeadbeef); hlib_as_data_file = LoadLibraryExA(dll_name, 0, LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE); - if (!((ULONG_PTR)hlib_as_data_file & 1) || /* winxp */ + if (!((ULONG_PTR)hlib_as_data_file & 3) || /* winxp */ (!hlib_as_data_file && GetLastError() == ERROR_INVALID_PARAMETER)) /* w2k3 */ { win_skip( "LOAD_LIBRARY_AS_DATAFILE_EXCLUSIVE not supported\n" ); @@ -886,6 +886,28 @@ static void test_Loader(void) ok(ret, "FreeLibrary error %d\n", GetLastError()); } + SetLastError(0xdeadbeef); + hlib_as_data_file = LoadLibraryExA(dll_name, 0, LOAD_LIBRARY_AS_IMAGE_RESOURCE); + if (!((ULONG_PTR)hlib_as_data_file & 3) || /* winxp */ + (!hlib_as_data_file && GetLastError() == ERROR_INVALID_PARAMETER)) /* w2k3 */ + { + win_skip( "LOAD_LIBRARY_AS_IMAGE_RESOURCE not supported\n" ); + FreeLibrary(hlib_as_data_file); + } + else + { + ok(hlib_as_data_file != 0, "LoadLibraryEx error %u\n", GetLastError()); + ok(((ULONG_PTR)hlib_as_data_file & 3) == 2, "hlib_as_data_file got %p\n", + hlib_as_data_file); + + hlib = GetModuleHandleA(dll_name); + ok(!hlib, "GetModuleHandle should fail\n"); + + SetLastError(0xdeadbeef); + ret = FreeLibrary(hlib_as_data_file); + ok(ret, "FreeLibrary error %d\n", GetLastError()); + } + query_image_section( i, dll_name, &nt_header, NULL ); } else
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Alexandre Julliard