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controllers/npad: Validate device handles before use

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Some games such as NEKOPARA Vol. 3 send invalid device handles when calling InitializeVibrationDevice. Introduce a check to validate the device handle before use.
This commit is contained in:
Morph 2020-12-12 06:37:08 -05:00
parent 69b46dd607
commit 1c773c0869
2 changed files with 45 additions and 0 deletions
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41
src/core/hle/service/hid/controllers/npad.cpp
View file

@ -116,6 +116,31 @@ u32 Controller_NPad::IndexToNPad(std::size_t index) {
}
}
bool Controller_NPad::IsNpadIdValid(u32 npad_id) {
switch (npad_id) {
case 0:
case 1:
case 2:
case 3:
case 4:
case 5:
case 6:
case 7:
case NPAD_UNKNOWN:
case NPAD_HANDHELD:
return true;
default:
LOG_ERROR(Service_HID, "Invalid npad id {}", npad_id);
return false;
}
}
bool Controller_NPad::IsDeviceHandleValid(const DeviceHandle& device_handle) {
return IsNpadIdValid(device_handle.npad_id) &&
device_handle.npad_type < NpadType::MaxNpadType &&
device_handle.device_index < DeviceIndex::MaxDeviceIndex;
}
Controller_NPad::Controller_NPad(Core::System& system) : ControllerBase(system), system(system) {}
Controller_NPad::~Controller_NPad() {
@ -742,6 +767,10 @@ bool Controller_NPad::VibrateControllerAtIndex(std::size_t npad_index, std::size
void Controller_NPad::VibrateController(const DeviceHandle& vibration_device_handle,
const VibrationValue& vibration_value) {
if (!IsDeviceHandleValid(vibration_device_handle)) {
return;
}
if (!Settings::values.vibration_enabled.GetValue() && !permit_vibration_session_enabled) {
return;
}
@ -798,12 +827,20 @@ void Controller_NPad::VibrateControllers(const std::vector<DeviceHandle>& vibrat
Controller_NPad::VibrationValue Controller_NPad::GetLastVibration(
const DeviceHandle& vibration_device_handle) const {
if (!IsDeviceHandleValid(vibration_device_handle)) {
return {};
}
const auto npad_index = NPadIdToIndex(vibration_device_handle.npad_id);
const auto device_index = static_cast<std::size_t>(vibration_device_handle.device_index);
return latest_vibration_values[npad_index][device_index];
}
void Controller_NPad::InitializeVibrationDevice(const DeviceHandle& vibration_device_handle) {
if (!IsDeviceHandleValid(vibration_device_handle)) {
return;
}
const auto npad_index = NPadIdToIndex(vibration_device_handle.npad_id);
const auto device_index = static_cast<std::size_t>(vibration_device_handle.device_index);
InitializeVibrationDeviceAtIndex(npad_index, device_index);
@ -824,6 +861,10 @@ void Controller_NPad::SetPermitVibrationSession(bool permit_vibration_session) {
}
bool Controller_NPad::IsVibrationDeviceMounted(const DeviceHandle& vibration_device_handle) const {
if (!IsDeviceHandleValid(vibration_device_handle)) {
return false;
}
const auto npad_index = NPadIdToIndex(vibration_device_handle.npad_id);
const auto device_index = static_cast<std::size_t>(vibration_device_handle.device_index);
return vibration_devices_mounted[npad_index][device_index];

4
src/core/hle/service/hid/controllers/npad.h
View file

@ -56,12 +56,14 @@ public:
JoyconLeft = 6,
JoyconRight = 7,
Pokeball = 9,
MaxNpadType = 10,
};
enum class DeviceIndex : u8 {
Left = 0,
Right = 1,
None = 2,
MaxDeviceIndex = 3,
};
enum class GyroscopeZeroDriftMode : u32 {
@ -213,6 +215,8 @@ public:
static Settings::ControllerType MapNPadToSettingsType(Controller_NPad::NPadControllerType type);
static std::size_t NPadIdToIndex(u32 npad_id);
static u32 IndexToNPad(std::size_t index);
static bool IsNpadIdValid(u32 npad_id);
static bool IsDeviceHandleValid(const DeviceHandle& device_handle);
private:
struct CommonHeader {