void
InitTlsAllocationTracker()
{
if (sInitialized) {
return;
}
sRecentTlsAllocationStacks = new stacks_t();
// Windows DLL interceptor
static WindowsDllInterceptor sKernel32DllInterceptor{};
// Initialize dll interceptor and add hook.
sKernel32DllInterceptor.Init("kernel32.dll");
bool succeeded = sKernel32DllInterceptor.AddHook(
"TlsAlloc",
reinterpret_cast<intptr_t>(InterposedTlsAlloc),
reinterpret_cast<void**>(&gOriginalTlsAlloc));
if (!succeeded) {
return;
}
succeeded = sKernel32DllInterceptor.AddHook(
"TlsFree",
reinterpret_cast<intptr_t>(InterposedTlsFree),
reinterpret_cast<void**>(&gOriginalTlsFree));
if (!succeeded) {
return;
}
sInitialized = true;
}
void
XRE_SetupDllBlocklist()
{
NtDllIntercept.Init("ntdll.dll");
bool ok = NtDllIntercept.AddHook("LdrLoadDll", reinterpret_cast<intptr_t>(patched_LdrLoadDll), (void**) &stub_LdrLoadDll);
#ifdef DEBUG
if (!ok)
printf_stderr ("LdrLoadDll hook failed, no dll blocklisting active\n");
#endif
}
bool TestHook(const char *dll, const char *func)
{
void *orig_func;
WindowsDllInterceptor TestIntercept;
TestIntercept.Init(dll);
if (TestIntercept.AddHook(func, 0, &orig_func)) {
printf("TEST-PASS | WindowsDllInterceptor | Could hook %s from %s\n", func, dll);
return true;
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Failed to hook %s from %s\n", func, dll);
return false;
}
}
void PoisonWrite() {
// Quick sanity check that we don't poison twice.
static bool WritesArePoisoned = false;
MOZ_ASSERT(!WritesArePoisoned);
if (WritesArePoisoned)
return;
WritesArePoisoned = true;
if (!PoisonWriteEnabled())
return;
sNtDllInterceptor.Init("ntdll.dll");
sNtDllInterceptor.AddHook("NtWriteFile", reinterpret_cast<intptr_t>(patched_WriteFile), reinterpret_cast<void**>(&gOriginalWriteFile));
sNtDllInterceptor.AddHook("NtWriteFileGather", reinterpret_cast<intptr_t>(patched_WriteFileGather), reinterpret_cast<void**>(&gOriginalWriteFileGather));
}
static void InstallHooks()
{
gNtdllIntercept.Init("ntdll.dll");
bool ok = gNtdllIntercept.AddHook("RtlAllocateHeap", reinterpret_cast<intptr_t>(RtlAllocateHeapHook), (void**) &gRtlAllocateHeapOrig);
if (ok)
lf("memtrace.dll: Hooked RtlAllocateHeap");
else
lf("memtrace.dll: failed to hook RtlAllocateHeap");
ok = gNtdllIntercept.AddHook("RtlFreeHeap", reinterpret_cast<intptr_t>(RtlFreeHeapHook), (void**) &gRtlFreeHeapOrig);
if (ok)
lf("memtrace.dll: Hooked RtlFreeHeap");
else
lf("memtrace.dll: failed to hook RtlFreeHeap");
}
static void
InitializeHooks()
{
static bool initialized = false;
if (initialized) {
return;
}
initialized = true;
sDeviceNames = new std::unordered_map<std::wstring, std::wstring>();
for (const std::wstring& name : GetDosDeviceNames()) {
sDeviceNames->emplace(name, GetDeviceMapping(name));
}
sKernel32Intercept.Init("kernelbase.dll");
sOriginalQueryDosDeviceWFnPtr.Set(sKernel32Intercept, "QueryDosDeviceW",
&QueryDosDeviceWHook);
}
bool TestDetour(const char *dll, const char *func)
{
void *orig_func;
bool successful = false;
{
WindowsDllInterceptor TestIntercept;
TestIntercept.Init(dll);
successful = TestIntercept.AddDetour(func, 0, &orig_func);
}
if (successful) {
printf("TEST-PASS | WindowsDllInterceptor | Could detour %s from %s\n", func, dll);
return true;
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Failed to detour %s from %s\n", func, dll);
return false;
}
}
bool TestHook(HookTestFunc funcTester, const char *dll, const char *func)
{
void *orig_func;
bool successful = false;
{
WindowsDllInterceptor TestIntercept;
TestIntercept.Init(dll);
successful = TestIntercept.AddHook(func, 0, &orig_func);
}
if (successful) {
printf("TEST-PASS | WindowsDllInterceptor | Could hook %s from %s\n", func, dll);
return CheckHook(funcTester, orig_func, dll, func);
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Failed to hook %s from %s\n", func, dll);
return false;
}
}
void Compatibility::Init() {
// Note we collect some AT statistics/telemetry here for convenience.
InitConsumers();
CrashReporter::AnnotateCrashReport(
CrashReporter::Annotation::AccessibilityInProcClient,
nsPrintfCString("0x%X", sConsumers));
// Gather telemetry
uint32_t temp = sConsumers;
for (int i = 0; temp; i++) {
if (temp & 0x1) statistics::A11yConsumers(i);
temp >>= 1;
}
// Turn off new tab switching for Jaws and WE.
if (sConsumers & (JAWS | OLDJAWS | WE)) {
// Check to see if the pref for disallowing CtrlTab is already set. If so,
// bail out (respect the user settings). If not, set it.
if (!Preferences::HasUserValue("browser.ctrlTab.disallowForScreenReaders"))
Preferences::SetBool("browser.ctrlTab.disallowForScreenReaders", true);
}
// If we have a consumer who is not NVDA, we enable detection for the
// InSendMessageEx compatibility hack. NVDA does not require this.
// We also skip UIA, as we see crashes there.
if ((sConsumers & (~(UIAUTOMATION | NVDA))) && BrowserTabsRemoteAutostart()) {
sUser32Interceptor.Init("user32.dll");
sInSendMessageExStub.Set(sUser32Interceptor, "InSendMessageEx",
&InSendMessageExHook);
// The vectored exception handler allows us to catch exceptions ahead of any
// SEH handlers.
if (!sVectoredExceptionHandler) {
// We need to let ASan's ShadowExceptionHandler remain in the firstHandler
// position, otherwise we'll get infinite recursion when our handler
// faults on shadow memory.
const ULONG firstHandler = FALSE;
sVectoredExceptionHandler = AddVectoredExceptionHandler(
firstHandler, &DetectInSendMessageExCompat);
}
}
}
int main()
{
payload initial = { 0x12345678, 0xfc4e9d31, 0x87654321 };
payload p0, p1;
ZeroMemory(&p0, sizeof(p0));
ZeroMemory(&p1, sizeof(p1));
p0 = rotatePayload(initial);
{
WindowsDllInterceptor ExeIntercept;
ExeIntercept.Init("TestDllInterceptor.exe");
if (ExeIntercept.AddHook("rotatePayload", reinterpret_cast<intptr_t>(patched_rotatePayload), (void**) &orig_rotatePayload)) {
printf("TEST-PASS | WindowsDllInterceptor | Hook added\n");
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Failed to add hook\n");
return 1;
}
p1 = rotatePayload(initial);
if (patched_func_called) {
printf("TEST-PASS | WindowsDllInterceptor | Hook called\n");
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Hook was not called\n");
return 1;
}
if (p0 == p1) {
printf("TEST-PASS | WindowsDllInterceptor | Hook works properly\n");
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Hook didn't return the right information\n");
return 1;
}
}
patched_func_called = false;
ZeroMemory(&p1, sizeof(p1));
p1 = rotatePayload(initial);
if (!patched_func_called) {
printf("TEST-PASS | WindowsDllInterceptor | Hook was not called after unregistration\n");
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Hook was still called after unregistration\n");
return 1;
}
if (p0 == p1) {
printf("TEST-PASS | WindowsDllInterceptor | Original function worked properly\n");
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Original function didn't return the right information\n");
return 1;
}
if (TestHook("user32.dll", "GetWindowInfo") &&
#ifdef _WIN64
TestHook("user32.dll", "SetWindowLongPtrA") &&
TestHook("user32.dll", "SetWindowLongPtrW") &&
#else
TestHook("user32.dll", "SetWindowLongA") &&
TestHook("user32.dll", "SetWindowLongW") &&
#endif
TestHook("user32.dll", "TrackPopupMenu") &&
TestHook("ntdll.dll", "NtFlushBuffersFile") &&
TestHook("ntdll.dll", "LdrLoadDll")) {
printf("TEST-PASS | WindowsDllInterceptor | all checks passed\n");
return 0;
}
return 1;
}
int main()
{
payload initial = { 0x12345678, 0xfc4e9d31, 0x87654321 };
payload p0, p1;
ZeroMemory(&p0, sizeof(p0));
ZeroMemory(&p1, sizeof(p1));
p0 = rotatePayload(initial);
{
WindowsDllInterceptor ExeIntercept;
ExeIntercept.Init("TestDllInterceptor.exe");
if (ExeIntercept.AddHook("rotatePayload", reinterpret_cast<intptr_t>(patched_rotatePayload), (void**) &orig_rotatePayload)) {
printf("TEST-PASS | WindowsDllInterceptor | Hook added\n");
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Failed to add hook\n");
return 1;
}
p1 = rotatePayload(initial);
if (patched_func_called) {
printf("TEST-PASS | WindowsDllInterceptor | Hook called\n");
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Hook was not called\n");
return 1;
}
if (p0 == p1) {
printf("TEST-PASS | WindowsDllInterceptor | Hook works properly\n");
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Hook didn't return the right information\n");
return 1;
}
}
patched_func_called = false;
ZeroMemory(&p1, sizeof(p1));
p1 = rotatePayload(initial);
if (!patched_func_called) {
printf("TEST-PASS | WindowsDllInterceptor | Hook was not called after unregistration\n");
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Hook was still called after unregistration\n");
return 1;
}
if (p0 == p1) {
printf("TEST-PASS | WindowsDllInterceptor | Original function worked properly\n");
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Original function didn't return the right information\n");
return 1;
}
if (TestHook("user32.dll", "GetWindowInfo") &&
#ifdef _WIN64
TestHook("user32.dll", "SetWindowLongPtrA") &&
TestHook("user32.dll", "SetWindowLongPtrW") &&
#else
TestHook("user32.dll", "SetWindowLongA") &&
TestHook("user32.dll", "SetWindowLongW") &&
#endif
TestHook("user32.dll", "TrackPopupMenu") &&
#ifdef _M_IX86
// We keep this test to hook complex code on x86. (Bug 850957)
TestHook("ntdll.dll", "NtFlushBuffersFile") &&
#endif
TestHook("ntdll.dll", "NtWriteFile") &&
TestHook("ntdll.dll", "NtWriteFileGather") &&
// Bug 733892: toolkit/crashreporter/nsExceptionHandler.cpp
TestHook("kernel32.dll", "SetUnhandledExceptionFilter") &&
#ifdef _M_IX86
// Bug 670967: xpcom/base/AvailableMemoryTracker.cpp
TestHook("kernel32.dll", "VirtualAlloc") &&
TestHook("kernel32.dll", "MapViewOfFile") &&
TestHook("gdi32.dll", "CreateDIBSection") &&
#endif
TestHook("ntdll.dll", "LdrLoadDll")) {
printf("TEST-PASS | WindowsDllInterceptor | all checks passed\n");
return 0;
}
return 1;
}
int main()
{
payload initial = { 0x12345678, 0xfc4e9d31, 0x87654321 };
payload p0, p1;
ZeroMemory(&p0, sizeof(p0));
ZeroMemory(&p1, sizeof(p1));
p0 = rotatePayload(initial);
{
WindowsDllInterceptor ExeIntercept;
ExeIntercept.Init("TestDllInterceptor.exe");
if (ExeIntercept.AddHook("rotatePayload", reinterpret_cast<intptr_t>(patched_rotatePayload), (void**) &orig_rotatePayload)) {
printf("TEST-PASS | WindowsDllInterceptor | Hook added\n");
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Failed to add hook\n");
return 1;
}
p1 = rotatePayload(initial);
if (patched_func_called) {
printf("TEST-PASS | WindowsDllInterceptor | Hook called\n");
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Hook was not called\n");
return 1;
}
if (p0 == p1) {
printf("TEST-PASS | WindowsDllInterceptor | Hook works properly\n");
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Hook didn't return the right information\n");
return 1;
}
}
patched_func_called = false;
ZeroMemory(&p1, sizeof(p1));
p1 = rotatePayload(initial);
if (!patched_func_called) {
printf("TEST-PASS | WindowsDllInterceptor | Hook was not called after unregistration\n");
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Hook was still called after unregistration\n");
return 1;
}
if (p0 == p1) {
printf("TEST-PASS | WindowsDllInterceptor | Original function worked properly\n");
} else {
printf("TEST-UNEXPECTED-FAIL | WindowsDllInterceptor | Original function didn't return the right information\n");
return 1;
}
if (TestHook(TestGetWindowInfo, "user32.dll", "GetWindowInfo") &&
#ifdef _WIN64
TestHook(TestSetWindowLongPtr, "user32.dll", "SetWindowLongPtrA") &&
TestHook(TestSetWindowLongPtr, "user32.dll", "SetWindowLongPtrW") &&
#else
TestHook(TestSetWindowLong, "user32.dll", "SetWindowLongA") &&
TestHook(TestSetWindowLong, "user32.dll", "SetWindowLongW") &&
#endif
TestHook(TestTrackPopupMenu, "user32.dll", "TrackPopupMenu") &&
#ifdef _M_IX86
// We keep this test to hook complex code on x86. (Bug 850957)
TestHook(TestNtFlushBuffersFile, "ntdll.dll", "NtFlushBuffersFile") &&
#endif
TestHook(TestNtCreateFile, "ntdll.dll", "NtCreateFile") &&
TestHook(TestNtReadFile, "ntdll.dll", "NtReadFile") &&
TestHook(TestNtReadFileScatter, "ntdll.dll", "NtReadFileScatter") &&
TestHook(TestNtWriteFile, "ntdll.dll", "NtWriteFile") &&
TestHook(TestNtWriteFileGather, "ntdll.dll", "NtWriteFileGather") &&
TestHook(TestNtQueryFullAttributesFile, "ntdll.dll", "NtQueryFullAttributesFile") &&
// Bug 733892: toolkit/crashreporter/nsExceptionHandler.cpp
TestHook(TestSetUnhandledExceptionFilter, "kernel32.dll", "SetUnhandledExceptionFilter") &&
#ifdef _M_IX86
// Bug 670967: xpcom/base/AvailableMemoryTracker.cpp
TestHook(TestVirtualAlloc, "kernel32.dll", "VirtualAlloc") &&
TestHook(TestMapViewOfFile, "kernel32.dll", "MapViewOfFile") &&
TestHook(TestCreateDIBSection, "gdi32.dll", "CreateDIBSection") &&
TestHook(TestCreateFileW, "kernel32.dll", "CreateFileW") && // see Bug 1316415
#endif
TestHook(TestCreateFileA, "kernel32.dll", "CreateFileA") &&
TestDetour("user32.dll", "CreateWindowExW") &&
TestHook(TestInSendMessageEx, "user32.dll", "InSendMessageEx") &&
TestHook(TestImmGetContext, "imm32.dll", "ImmGetContext") &&
// TestHook("imm32.dll", "ImmReleaseContext") && // see Bug 1316415
TestHook(TestImmGetCompositionStringW, "imm32.dll", "ImmGetCompositionStringW") &&
TestHook(TestImmSetCandidateWindow, "imm32.dll", "ImmSetCandidateWindow") &&
TestHook(TestImmNotifyIME, "imm32.dll", "ImmNotifyIME") &&
TestHook(TestGetSaveFileNameW, "comdlg32.dll", "GetSaveFileNameW") &&
TestHook(TestGetOpenFileNameW, "comdlg32.dll", "GetOpenFileNameW") &&
#ifdef _M_X64
TestHook(TestGetKeyState, "user32.dll", "GetKeyState") && // see Bug 1316415
TestHook(TestLdrUnloadDll, "ntdll.dll", "LdrUnloadDll") &&
MaybeTestHook(IsWin8OrLater(), TestLdrResolveDelayLoadedAPI, "ntdll.dll", "LdrResolveDelayLoadedAPI") &&
MaybeTestHook(!IsWin8OrLater(), TestRtlInstallFunctionTableCallback, "kernel32.dll", "RtlInstallFunctionTableCallback") &&
#endif
MaybeTestHook(ShouldTestTipTsf(), TestProcessCaretEvents, "tiptsf.dll", "ProcessCaretEvents") &&
#ifdef _M_IX86
TestHook(TestSendMessageTimeoutW, "user32.dll", "SendMessageTimeoutW") &&
#endif
TestHook(TestTlsAlloc, "kernel32.dll", "TlsAlloc") &&
TestHook(TestTlsFree, "kernel32.dll", "TlsFree") &&
TestDetour("ntdll.dll", "LdrLoadDll")) {
printf("TEST-PASS | WindowsDllInterceptor | all checks passed\n");
return 0;
}
return 1;
}