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kernel32/tests: Add test to show ATL thunk emulator exceptions are not passed to usermode.

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Sebastian Lackner 2014-10-11 00:35:02 +02:00 committed by Alexandre Julliard
parent 1ec64dcd23
commit 511a849046
1 changed files with 66 additions and 6 deletions
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72
dlls/kernel32/tests/virtual.c
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@ -35,7 +35,7 @@
#define NUM_THREADS 4
#define MAPPING_SIZE 0x100000
static HINSTANCE hkernel32;
static HINSTANCE hkernel32, hntdll;
static LPVOID (WINAPI *pVirtualAllocEx)(HANDLE, LPVOID, SIZE_T, DWORD, DWORD);
static BOOL (WINAPI *pVirtualFreeEx)(HANDLE, LPVOID, SIZE_T, DWORD);
static UINT (WINAPI *pGetWriteWatch)(DWORD,LPVOID,SIZE_T,LPVOID*,ULONG_PTR*,ULONG*);
@ -44,6 +44,8 @@ static NTSTATUS (WINAPI *pNtAreMappedFilesTheSame)(PVOID,PVOID);
static NTSTATUS (WINAPI *pNtMapViewOfSection)(HANDLE, HANDLE, PVOID *, ULONG, SIZE_T, const LARGE_INTEGER *, SIZE_T *, ULONG, ULONG, ULONG);
static DWORD (WINAPI *pNtUnmapViewOfSection)(HANDLE, PVOID);
static struct _TEB * (WINAPI *pNtCurrentTeb)(void);
static PVOID (WINAPI *pRtlAddVectoredExceptionHandler)(ULONG, PVECTORED_EXCEPTION_HANDLER);
static ULONG (WINAPI *pRtlRemoveVectoredExceptionHandler)(PVOID);
/* ############################### */
@ -1843,6 +1845,33 @@ static DWORD execute_fault_seh_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTR
return ExceptionContinueExecution;
}
static LONG CALLBACK execute_fault_vec_handler( EXCEPTION_POINTERS *ExceptionInfo )
{
PEXCEPTION_RECORD rec = ExceptionInfo->ExceptionRecord;
DWORD old_prot;
BOOL success;
trace( "exception: %08x flags:%x addr:%p info[0]:%ld info[1]:%p\n",
rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress,
rec->ExceptionInformation[0], (void *)rec->ExceptionInformation[1] );
ok( rec->NumberParameters == 2, "NumberParameters is %d instead of 2\n", rec->NumberParameters );
ok( rec->ExceptionCode == STATUS_ACCESS_VIOLATION,
"ExceptionCode is %08x instead of STATUS_ACCESS_VIOLATION\n", rec->ExceptionCode );
if (rec->ExceptionCode == STATUS_ACCESS_VIOLATION)
num_execute_fault_calls++;
if (rec->ExceptionInformation[0] == EXCEPTION_READ_FAULT)
return EXCEPTION_CONTINUE_SEARCH;
success = VirtualProtect( (void *)rec->ExceptionInformation[1], 16, PAGE_EXECUTE_READWRITE, &old_prot );
ok( success, "VirtualProtect failed %u\n", GetLastError() );
ok( old_prot == PAGE_NOACCESS, "wrong old prot %x\n", old_prot );
return EXCEPTION_CONTINUE_EXECUTION;
}
static inline DWORD send_message_excpt( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
{
EXCEPTION_REGISTRATION_RECORD frame;
@ -2021,6 +2050,34 @@ static void test_atl_thunk_emulation( ULONG dep_flags )
ok( num_guard_page_calls == 0, "expected no STATUS_GUARD_PAGE_VIOLATION exception, got %d exceptions\n", num_guard_page_calls );
ok( num_execute_fault_calls == 0, "expected no STATUS_ACCESS_VIOLATION exception, got %d exceptions\n", num_execute_fault_calls );
/* The following test shows that on Windows, even a vectored exception handler
* cannot intercept internal exceptions thrown by the ATL thunk emulation layer. */
if ((dep_flags & MEM_EXECUTE_OPTION_DISABLE) && !(dep_flags & MEM_EXECUTE_OPTION_DISABLE_THUNK_EMULATION))
{
if (pRtlAddVectoredExceptionHandler && pRtlRemoveVectoredExceptionHandler)
{
PVOID vectored_handler;
success = VirtualProtect( base, size, PAGE_NOACCESS, &old_prot );
ok( success, "VirtualProtect failed %u\n", GetLastError() );
vectored_handler = pRtlAddVectoredExceptionHandler( TRUE, &execute_fault_vec_handler );
ok( vectored_handler != 0, "RtlAddVectoredExceptionHandler failed\n" );
num_execute_fault_calls = 0;
ret = SendMessageA( hWnd, WM_USER, 0, 0 );
pRtlRemoveVectoredExceptionHandler( vectored_handler );
ok( ret == 43, "call returned wrong result, expected 43, got %d\n", ret );
todo_wine
ok( num_execute_fault_calls == 1, "expected one STATUS_ACCESS_VIOLATION exception, got %d exceptions\n", num_execute_fault_calls );
}
else
win_skip( "RtlAddVectoredExceptionHandler or RtlRemoveVectoredExceptionHandler not found\n" );
}
/* Restore the JMP instruction, set to executable, and then destroy the Window */
memcpy( base, code_jmp, sizeof(code_jmp) );
@ -3265,15 +3322,18 @@ START_TEST(virtual)
}
hkernel32 = GetModuleHandleA("kernel32.dll");
hntdll = GetModuleHandleA("ntdll.dll");
pVirtualAllocEx = (void *) GetProcAddress(hkernel32, "VirtualAllocEx");
pVirtualFreeEx = (void *) GetProcAddress(hkernel32, "VirtualFreeEx");
pGetWriteWatch = (void *) GetProcAddress(hkernel32, "GetWriteWatch");
pResetWriteWatch = (void *) GetProcAddress(hkernel32, "ResetWriteWatch");
pNtAreMappedFilesTheSame = (void *)GetProcAddress( GetModuleHandleA("ntdll.dll"),
"NtAreMappedFilesTheSame" );
pNtMapViewOfSection = (void *)GetProcAddress(GetModuleHandleA("ntdll.dll"), "NtMapViewOfSection");
pNtUnmapViewOfSection = (void *)GetProcAddress(GetModuleHandleA("ntdll.dll"), "NtUnmapViewOfSection");
pNtCurrentTeb = (void *)GetProcAddress( GetModuleHandleA("ntdll.dll"), "NtCurrentTeb" );
pNtAreMappedFilesTheSame = (void *)GetProcAddress( hntdll, "NtAreMappedFilesTheSame" );
pNtMapViewOfSection = (void *)GetProcAddress( hntdll, "NtMapViewOfSection" );
pNtUnmapViewOfSection = (void *)GetProcAddress( hntdll, "NtUnmapViewOfSection" );
pNtCurrentTeb = (void *)GetProcAddress( hntdll, "NtCurrentTeb" );
pRtlAddVectoredExceptionHandler = (void *)GetProcAddress( hntdll, "RtlAddVectoredExceptionHandler" );
pRtlRemoveVectoredExceptionHandler = (void *)GetProcAddress( hntdll, "RtlRemoveVectoredExceptionHandler" );
test_shared_memory(FALSE);
test_shared_memory_ro(FALSE, FILE_MAP_READ|FILE_MAP_WRITE);