Module: wine Branch: master Commit: 2062df7e6cf62ba616f2d9957ae965957de1d9f8 URL: https://source.winehq.org/git/wine.git/?a=commit;h=2062df7e6cf62ba616f2d9957...
Author: Alexandre Julliard julliard@winehq.org Date: Sat Feb 9 15:29:54 2019 +0100
ntdll: Use the image info to check for fake dlls.
Signed-off-by: Alexandre Julliard julliard@winehq.org
---
dlls/ntdll/loader.c | 68 ++++++++++++++--------------------------------------- 1 file changed, 17 insertions(+), 51 deletions(-)
diff --git a/dlls/ntdll/loader.c b/dlls/ntdll/loader.c index 497b75d..dd6f437 100644 --- a/dlls/ntdll/loader.c +++ b/dlls/ntdll/loader.c @@ -1635,29 +1635,6 @@ NTSTATUS WINAPI LdrGetProcedureAddress(HMODULE module, const ANSI_STRING *name,
/*********************************************************************** - * is_fake_dll - * - * Check if a loaded native dll is a Wine fake dll. - */ -static BOOL is_fake_dll( HANDLE handle ) -{ - static const char fakedll_signature[] = "Wine placeholder DLL"; - char buffer[sizeof(IMAGE_DOS_HEADER) + sizeof(fakedll_signature)]; - const IMAGE_DOS_HEADER *dos = (const IMAGE_DOS_HEADER *)buffer; - IO_STATUS_BLOCK io; - LARGE_INTEGER offset; - - offset.QuadPart = 0; - if (NtReadFile( handle, 0, NULL, 0, &io, buffer, sizeof(buffer), &offset, NULL )) return FALSE; - if (io.Information < sizeof(buffer)) return FALSE; - if (dos->e_magic != IMAGE_DOS_SIGNATURE) return FALSE; - if (dos->e_lfanew >= sizeof(*dos) + sizeof(fakedll_signature) && - !memcmp( dos + 1, fakedll_signature, sizeof(fakedll_signature) )) return TRUE; - return FALSE; -} - - -/*********************************************************************** * get_builtin_fullname * * Build the full pathname for a builtin dll. @@ -2323,7 +2300,7 @@ done: * Open a file for a new dll. Helper for find_dll_file. */ static NTSTATUS open_dll_file( const WCHAR *name, UNICODE_STRING *nt_name, WINE_MODREF **pwm, - HANDLE *handle, void **module, pe_image_info_t *image_info, struct stat *st ) + void **module, pe_image_info_t *image_info, struct stat *st ) { FILE_BASIC_INFORMATION info; OBJECT_ATTRIBUTES attr; @@ -2331,7 +2308,7 @@ static NTSTATUS open_dll_file( const WCHAR *name, UNICODE_STRING *nt_name, WINE_ LARGE_INTEGER size; SIZE_T len = 0; NTSTATUS status; - HANDLE mapping; + HANDLE handle, mapping; int fd, needs_close;
nt_name->Buffer = NULL; @@ -2345,7 +2322,7 @@ static NTSTATUS open_dll_file( const WCHAR *name, UNICODE_STRING *nt_name, WINE_ attr.ObjectName = nt_name; attr.SecurityDescriptor = NULL; attr.SecurityQualityOfService = NULL; - if ((status = NtOpenFile( handle, GENERIC_READ | SYNCHRONIZE, &attr, &io, + if ((status = NtOpenFile( &handle, GENERIC_READ | SYNCHRONIZE, &attr, &io, FILE_SHARE_READ | FILE_SHARE_DELETE, FILE_SYNCHRONOUS_IO_NONALERT | FILE_NON_DIRECTORY_FILE ))) { @@ -2360,7 +2337,7 @@ static NTSTATUS open_dll_file( const WCHAR *name, UNICODE_STRING *nt_name, WINE_ return STATUS_DLL_NOT_FOUND; }
- if (!server_get_unix_fd( *handle, 0, &fd, &needs_close, NULL, NULL )) + if (!server_get_unix_fd( handle, 0, &fd, &needs_close, NULL, NULL )) { fstat( fd, st ); if (needs_close) close( fd ); @@ -2368,8 +2345,7 @@ static NTSTATUS open_dll_file( const WCHAR *name, UNICODE_STRING *nt_name, WINE_ { TRACE( "%s is the same file as existing module %p %s\n", debugstr_w( nt_name->Buffer ), (*pwm)->ldr.BaseAddress, debugstr_w( (*pwm)->ldr.FullDllName.Buffer )); - NtClose( *handle ); - *handle = 0; + NtClose( handle ); return STATUS_SUCCESS; } } @@ -2377,7 +2353,9 @@ static NTSTATUS open_dll_file( const WCHAR *name, UNICODE_STRING *nt_name, WINE_ size.QuadPart = 0; status = NtCreateSection( &mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ | SECTION_MAP_EXECUTE, - NULL, &size, PAGE_EXECUTE_READ, SEC_IMAGE, *handle ); + NULL, &size, PAGE_EXECUTE_READ, SEC_IMAGE, handle ); + NtClose( handle ); + if (!status) { status = virtual_map_section( mapping, module, 0, 0, NULL, &len, @@ -2385,11 +2363,6 @@ static NTSTATUS open_dll_file( const WCHAR *name, UNICODE_STRING *nt_name, WINE_ if (status == STATUS_IMAGE_NOT_AT_BASE) status = STATUS_SUCCESS; NtClose( mapping ); } - if (status) - { - NtClose( *handle ); - *handle = 0; - } return status; }
@@ -2400,8 +2373,8 @@ static NTSTATUS open_dll_file( const WCHAR *name, UNICODE_STRING *nt_name, WINE_ * Search for dll in the specified paths. */ static NTSTATUS search_dll_file( LPCWSTR paths, LPCWSTR search, UNICODE_STRING *nt_name, - WINE_MODREF **pwm, HANDLE *handle, void **module, - pe_image_info_t *image_info, struct stat *st ) + WINE_MODREF **pwm, void **module, pe_image_info_t *image_info, + struct stat *st ) { WCHAR *name; NTSTATUS status = STATUS_DLL_NOT_FOUND; @@ -2423,7 +2396,7 @@ static NTSTATUS search_dll_file( LPCWSTR paths, LPCWSTR search, UNICODE_STRING * memcpy( name, paths, len * sizeof(WCHAR) ); if (len && name[len - 1] != '\') name[len++] = '\'; strcpyW( name + len, search ); - status = open_dll_file( name, nt_name, pwm, handle, module, image_info, st ); + status = open_dll_file( name, nt_name, pwm, module, image_info, st ); if (status != STATUS_DLL_NOT_FOUND) goto done; RtlFreeUnicodeString( nt_name ); paths = ptr; @@ -2447,15 +2420,13 @@ done: */ static NTSTATUS find_dll_file( const WCHAR *load_path, const WCHAR *libname, UNICODE_STRING *nt_name, WINE_MODREF **pwm, - HANDLE *handle, void **module, pe_image_info_t *image_info, - struct stat *st ) + void **module, pe_image_info_t *image_info, struct stat *st ) { WCHAR *ext, *dllname; NTSTATUS status = STATUS_SUCCESS;
/* first append .dll if needed */
- *handle = 0; *pwm = NULL; *module = NULL; dllname = NULL; @@ -2488,9 +2459,9 @@ static NTSTATUS find_dll_file( const WCHAR *load_path, const WCHAR *libname, }
if (RtlDetermineDosPathNameType_U( libname ) == RELATIVE_PATH) - status = search_dll_file( load_path, libname, nt_name, pwm, handle, module, image_info, st ); + status = search_dll_file( load_path, libname, nt_name, pwm, module, image_info, st ); else - status = open_dll_file( libname, nt_name, pwm, handle, module, image_info, st ); + status = open_dll_file( libname, nt_name, pwm, module, image_info, st );
done: RtlFreeHeap( GetProcessHeap(), 0, dllname ); @@ -2510,14 +2481,13 @@ static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_ WINE_MODREF *main_exe; UNICODE_STRING nt_name; struct stat st; - HANDLE handle; void *module; pe_image_info_t image_info; NTSTATUS nts;
TRACE( "looking for %s in %s\n", debugstr_w(libname), debugstr_w(load_path) );
- nts = find_dll_file( load_path, libname, &nt_name, pwm, &handle, &module, &image_info, &st ); + nts = find_dll_file( load_path, libname, &nt_name, pwm, &module, &image_info, &st );
if (*pwm) /* found already loaded module */ { @@ -2554,7 +2524,7 @@ static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_ break;
case STATUS_SUCCESS: /* valid PE file */ - if (!is_fake_dll( handle )) + if (!(image_info.image_flags & IMAGE_FLAGS_WineFakeDll)) { switch (loadorder) { @@ -2587,12 +2557,10 @@ static NTSTATUS load_dll( LPCWSTR load_path, LPCWSTR libname, DWORD flags, WINE_ nts = STATUS_DLL_NOT_FOUND; break; } - NtClose( handle ); if (module) NtUnmapViewOfSection( NtCurrentProcess(), module ); break; } TRACE( "%s is a fake Wine dll\n", debugstr_us(&nt_name) ); - NtClose( handle ); NtUnmapViewOfSection( NtCurrentProcess(), module ); /* fall through */
@@ -2661,7 +2629,6 @@ NTSTATUS WINAPI LdrGetDllHandle( LPCWSTR load_path, ULONG flags, const UNICODE_S NTSTATUS status; UNICODE_STRING nt_name; WINE_MODREF *wm; - HANDLE handle; void *module; pe_image_info_t image_info; struct stat st; @@ -2670,8 +2637,7 @@ NTSTATUS WINAPI LdrGetDllHandle( LPCWSTR load_path, ULONG flags, const UNICODE_S
if (!load_path) load_path = NtCurrentTeb()->Peb->ProcessParameters->DllPath.Buffer;
- status = find_dll_file( load_path, name->Buffer, &nt_name, &wm, &handle, &module, &image_info, &st ); - if (handle) NtClose( handle ); + status = find_dll_file( load_path, name->Buffer, &nt_name, &wm, &module, &image_info, &st );
if (wm) *base = wm->ldr.BaseAddress; else
-
Alexandre Julliard