// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4701) // Potentially uninitialized local variable 'result' used
#endif
#include <boost/crc.hpp>
#ifdef _MSC_VER
#pragma warning(pop)
#endif
#include <fmt/format.h>
#include "common/fs/file.h"
#include "common/fs/fs.h"
#include "common/fs/path_util.h"
#include "common/input.h"
#include "common/logging/log.h"
#include "common/string_util.h"
#include "common/tiny_mt.h"
#include "core/core.h"
#include "core/hid/emulated_controller.h"
#include "core/hid/hid_core.h"
#include "core/hid/hid_types.h"
#include "core/hle/kernel/k_event.h"
#include "core/hle/service/ipc_helpers.h"
#include "core/hle/service/mii/mii_manager.h"
#include "core/hle/service/nfc/common/amiibo_crypto.h"
#include "core/hle/service/nfc/common/device.h"
#include "core/hle/service/nfc/mifare_result.h"
#include "core/hle/service/nfc/nfc_result.h"
#include "core/hle/service/time/time_manager.h"
namespace Service::NFC {
NfcDevice::NfcDevice(Core::HID::NpadIdType npad_id_, Core::System& system_,
KernelHelpers::ServiceContext& service_context_,
Kernel::KEvent* availability_change_event_)
: npad_id{npad_id_}, system{system_}, service_context{service_context_},
availability_change_event{availability_change_event_} {
activate_event = service_context.CreateEvent("NFC:ActivateEvent");
deactivate_event = service_context.CreateEvent("NFC:DeactivateEvent");
npad_device = system.HIDCore().GetEmulatedController(npad_id);
Core::HID::ControllerUpdateCallback engine_callback{
.on_change = [this](Core::HID::ControllerTriggerType type) { NpadUpdate(type); },
.is_npad_service = false,
};
is_controller_set = true;
callback_key = npad_device->SetCallback(engine_callback);
}
NfcDevice::~NfcDevice() {
service_context.CloseEvent(activate_event);
service_context.CloseEvent(deactivate_event);
if (!is_controller_set) {
return;
}
npad_device->DeleteCallback(callback_key);
is_controller_set = false;
};
void NfcDevice::NpadUpdate(Core::HID::ControllerTriggerType type) {
if (type == Core::HID::ControllerTriggerType::Connected) {
Initialize();
availability_change_event->Signal();
return;
}
if (type == Core::HID::ControllerTriggerType::Disconnected) {
Finalize();
availability_change_event->Signal();
return;
}
if (!is_initalized) {
return;
}
if (!npad_device->IsConnected()) {
return;
}
// Ensure nfc mode is always active
if (npad_device->GetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex) ==
Common::Input::PollingMode::Active) {
npad_device->SetPollingMode(Core::HID::EmulatedDeviceIndex::RightIndex,
Common::Input::PollingMode::NFC);
}
if (type != Core::HID::ControllerTriggerType::Nfc) {
return;
}
const auto nfc_status = npad_device->GetNfc();
switch (nfc_status.state) {
case Common::Input::NfcState::NewAmiibo:
LoadNfcTag(nfc_status.protocol, nfc_status.tag_type, nfc_status.uuid_length,
nfc_status.uuid);
break;
case Common::Input::NfcState::AmiiboRemoved:
if (device_state == DeviceState::Initialized || device_state == DeviceState::TagRemoved) {
break;
}
if (device_state != DeviceState::SearchingForTag) {
CloseNfcTag();
}
break;
default:
break;
}
}
bool NfcDevice::LoadNfcTag(u8 protocol, u8 tag_type, u8 uuid_length, UniqueSerialNumber uuid) {
if (device_state != DeviceState::SearchingForTag) {
LOG_ERROR(Service_NFC, "Game is not looking for nfc tag, current state {}", device_state);
return false;
}
if ((protocol & static_cast<u8>(allowed_protocols)) == 0) {
LOG_ERROR(Service_NFC, "Protocol not supported {}", protocol);
return false;
}
real_tag_info = {
.uuid = uuid,
.uuid_length = uuid_length,
.protocol = static_cast<NfcProtocol>(protocol),
.tag_type = static_cast<TagType>(tag_type),
};
device_state = DeviceState::TagFound;
deactivate_event->GetReadableEvent().Clear();
activate_event->Signal();
return true;
}
bool NfcDevice::LoadAmiiboData() {
std::vector<u8> data{};
if (!npad_device->ReadAmiiboData(data)) {
return false;
}
if (data.size() < sizeof(NFP::EncryptedNTAG215File)) {
LOG_ERROR(Service_NFC, "Not an amiibo, size={}", data.size());
return false;
}
memcpy(&tag_data, data.data(), sizeof(NFP::EncryptedNTAG215File));
is_plain_amiibo = NFP::AmiiboCrypto::IsAmiiboValid(tag_data);
is_write_protected = false;
// Fallback for plain amiibos
if (is_plain_amiibo) {
LOG_INFO(Service_NFP, "Using plain amiibo");
encrypted_tag_data = NFP::AmiiboCrypto::EncodedDataToNfcData(tag_data);
return true;
}
// Fallback for encrypted amiibos without keys
if (!NFP::AmiiboCrypto::IsKeyAvailable()) {
LOG_INFO(Service_NFC, "Loading amiibo without keys");
memcpy(&encrypted_tag_data, data.data(), sizeof(NFP::EncryptedNTAG215File));
BuildAmiiboWithoutKeys(tag_data, encrypted_tag_data);
is_plain_amiibo = true;
is_write_protected = true;
return true;
}
LOG_INFO(Service_NFP, "Using encrypted amiibo");
tag_data = {};
memcpy(&encrypted_tag_data, data.data(), sizeof(NFP::EncryptedNTAG215File));
return true;
}
void NfcDevice::CloseNfcTag() {
LOG_INFO(Service_NFC, "Remove nfc tag");
if (device_state == DeviceState::TagMounted) {
Unmount();
}
device_state = DeviceState::TagRemoved;
encrypted_tag_data = {};
tag_data = {};
activate_event->GetReadableEvent().Clear();
deactivate_event->Signal();
}
Kernel::KReadableEvent& NfcDevice::GetActivateEvent() const {
return activate_event->GetReadableEvent();
}
Kernel::KReadableEvent& NfcDevice::GetDeactivateEvent() const {
return deactivate_event->GetReadableEvent();
}
void NfcDevice::Initialize() {
device_state = npad_device->HasNfc() ? DeviceState::Initialized : DeviceState::Unavailable;
encrypted_tag_data = {};
tag_data = {};
if (device_state != DeviceState::Initialized) {
return;
}
is_initalized = npad_device->AddNfcHandle();
}
void NfcDevice::Finalize() {
if (npad_device->IsConnected()) {
if (device_state == DeviceState::TagMounted) {
Unmount();
}
if (device_state == DeviceState::SearchingForTag ||
device_state == DeviceState::TagRemoved) {
StopDetection();
}
}
if (device_state != DeviceState::Unavailable) {
npad_device->RemoveNfcHandle();
}
device_state = DeviceState::Unavailable;
is_initalized = false;
}
Result NfcDevice::StartDetection(NfcProtocol allowed_protocol) {
if (device_state != DeviceState::Initialized && device_state != DeviceState::TagRemoved) {
LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
return ResultWrongDeviceState;
}
if (!npad_device->StartNfcPolling()) {
LOG_ERROR(Service_NFC, "Nfc polling not supported");
return ResultNfcDisabled;
}
device_state = DeviceState::SearchingForTag;
allowed_protocols = allowed_protocol;
return ResultSuccess;
}
Result NfcDevice::StopDetection() {
if (device_state == DeviceState::Initialized) {
return ResultSuccess;
}
if (device_state == DeviceState::TagFound || device_state == DeviceState::TagMounted) {
CloseNfcTag();
}
if (device_state == DeviceState::SearchingForTag || device_state == DeviceState::TagRemoved) {
npad_device->StopNfcPolling();
device_state = DeviceState::Initialized;
return ResultSuccess;
}
LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
return ResultWrongDeviceState;
}
Result NfcDevice::GetTagInfo(NFP::TagInfo& tag_info) const {
if (device_state != DeviceState::TagFound && device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
tag_info = real_tag_info;
// Generate random UUID to bypass amiibo load limits
if (real_tag_info.tag_type == TagType::Type2 && Settings::values.random_amiibo_id) {
Common::TinyMT rng{};
rng.Initialize(static_cast<u32>(GetCurrentPosixTime()));
rng.GenerateRandomBytes(tag_info.uuid.data(), tag_info.uuid_length);
}
return ResultSuccess;
}
Result NfcDevice::ReadMifare(std::span<const MifareReadBlockParameter> parameters,
std::span<MifareReadBlockData> read_block_data) const {
if (device_state != DeviceState::TagFound && device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
Result result = ResultSuccess;
TagInfo tag_info{};
result = GetTagInfo(tag_info);
if (result.IsError()) {
return result;
}
if (tag_info.protocol != NfcProtocol::TypeA || tag_info.tag_type != TagType::Mifare) {
return ResultInvalidTagType;
}
if (parameters.size() == 0) {
return ResultInvalidArgument;
}
Common::Input::MifareRequest request{};
Common::Input::MifareRequest out_data{};
const auto unknown = parameters[0].sector_key.unknown;
for (std::size_t i = 0; i < parameters.size(); i++) {
if (unknown != parameters[i].sector_key.unknown) {
return ResultInvalidArgument;
}
}
for (std::size_t i = 0; i < parameters.size(); i++) {
if (parameters[i].sector_key.command == MifareCmd::None) {
continue;
}
request.data[i].command = static_cast<u8>(parameters[i].sector_key.command);
request.data[i].sector = parameters[i].sector_number;
memcpy(request.data[i].key.data(), parameters[i].sector_key.sector_key.data(),
sizeof(KeyData));
}
if (!npad_device->ReadMifareData(request, out_data)) {
return ResultMifareError288;
}
for (std::size_t i = 0; i < read_block_data.size(); i++) {
if (static_cast<MifareCmd>(out_data.data[i].command) == MifareCmd::None) {
continue;
}
read_block_data[i] = {
.data = out_data.data[i].data,
.sector_number = out_data.data[i].sector,
};
}
return ResultSuccess;
}
Result NfcDevice::WriteMifare(std::span<const MifareWriteBlockParameter> parameters) {
Result result = ResultSuccess;
TagInfo tag_info{};
result = GetTagInfo(tag_info);
if (result.IsError()) {
return result;
}
if (tag_info.protocol != NfcProtocol::TypeA || tag_info.tag_type != TagType::Mifare) {
return ResultInvalidTagType;
}
if (parameters.size() == 0) {
return ResultInvalidArgument;
}
const auto unknown = parameters[0].sector_key.unknown;
for (std::size_t i = 0; i < parameters.size(); i++) {
if (unknown != parameters[i].sector_key.unknown) {
return ResultInvalidArgument;
}
}
Common::Input::MifareRequest request{};
for (std::size_t i = 0; i < parameters.size(); i++) {
if (parameters[i].sector_key.command == MifareCmd::None) {
continue;
}
request.data[i].command = static_cast<u8>(parameters[i].sector_key.command);
request.data[i].sector = parameters[i].sector_number;
memcpy(request.data[i].key.data(), parameters[i].sector_key.sector_key.data(),
sizeof(KeyData));
memcpy(request.data[i].data.data(), parameters[i].data.data(), sizeof(KeyData));
}
if (!npad_device->WriteMifareData(request)) {
return ResultMifareError288;
}
return result;
}
Result NfcDevice::SendCommandByPassThrough(const Time::Clock::TimeSpanType& timeout,
std::span<const u8> command_data,
std::span<u8> out_data) {
// Not implemented
return ResultSuccess;
}
Result NfcDevice::Mount(NFP::ModelType model_type, NFP::MountTarget mount_target_) {
if (device_state != DeviceState::TagFound) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
return ResultWrongDeviceState;
}
if (!LoadAmiiboData()) {
LOG_ERROR(Service_NFP, "Not an amiibo");
return ResultInvalidTagType;
}
if (!NFP::AmiiboCrypto::IsAmiiboValid(encrypted_tag_data)) {
LOG_ERROR(Service_NFP, "Not an amiibo");
return ResultInvalidTagType;
}
// The loaded amiibo is not encrypted
if (is_plain_amiibo) {
std::vector<u8> data(sizeof(NFP::NTAG215File));
memcpy(data.data(), &tag_data, sizeof(tag_data));
WriteBackupData(tag_data.uid, data);
device_state = DeviceState::TagMounted;
mount_target = mount_target_;
return ResultSuccess;
}
if (!NFP::AmiiboCrypto::DecodeAmiibo(encrypted_tag_data, tag_data)) {
bool has_backup = HasBackup(encrypted_tag_data.uuid).IsSuccess();
LOG_ERROR(Service_NFP, "Can't decode amiibo, has_backup= {}", has_backup);
return has_backup ? ResultCorruptedDataWithBackup : ResultCorruptedData;
}
std::vector<u8> data(sizeof(NFP::EncryptedNTAG215File));
memcpy(data.data(), &encrypted_tag_data, sizeof(encrypted_tag_data));
WriteBackupData(encrypted_tag_data.uuid, data);
device_state = DeviceState::TagMounted;
mount_target = mount_target_;
return ResultSuccess;
}
Result NfcDevice::Unmount() {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
// Save data before unloading the amiibo
if (is_data_moddified) {
Flush();
}
device_state = DeviceState::TagFound;
mount_target = NFP::MountTarget::None;
is_app_area_open = false;
return ResultSuccess;
}
Result NfcDevice::Flush() {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFP, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
auto& settings = tag_data.settings;
const auto& current_date = GetAmiiboDate(GetCurrentPosixTime());
if (settings.write_date.raw_date != current_date.raw_date) {
settings.write_date = current_date;
UpdateSettingsCrc();
}
tag_data.write_counter++;
const auto result = FlushWithBreak(NFP::BreakType::Normal);
is_data_moddified = false;
return result;
}
Result NfcDevice::FlushDebug() {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFC, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
tag_data.write_counter++;
const auto result = FlushWithBreak(NFP::BreakType::Normal);
is_data_moddified = false;
return result;
}
Result NfcDevice::FlushWithBreak(NFP::BreakType break_type) {
if (break_type != NFP::BreakType::Normal) {
LOG_ERROR(Service_NFC, "Break type not implemented {}", break_type);
return ResultWrongDeviceState;
}
if (is_write_protected) {
LOG_ERROR(Service_NFP, "No keys available skipping write request");
return ResultSuccess;
}
std::vector<u8> data(sizeof(NFP::EncryptedNTAG215File));
if (is_plain_amiibo) {
memcpy(data.data(), &tag_data, sizeof(tag_data));
WriteBackupData(tag_data.uid, data);
} else {
if (!NFP::AmiiboCrypto::EncodeAmiibo(tag_data, encrypted_tag_data)) {
LOG_ERROR(Service_NFP, "Failed to encode data");
return ResultWriteAmiiboFailed;
}
memcpy(data.data(), &encrypted_tag_data, sizeof(encrypted_tag_data));
WriteBackupData(encrypted_tag_data.uuid, data);
}
if (!npad_device->WriteNfc(data)) {
LOG_ERROR(Service_NFP, "Error writing to file");
return ResultWriteAmiiboFailed;
}
return ResultSuccess;
}
Result NfcDevice::Restore() {
if (device_state != DeviceState::TagFound) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
NFC::TagInfo tag_info{};
std::array<u8, sizeof(NFP::EncryptedNTAG215File)> data{};
Result result = GetTagInfo(tag_info);
if (result.IsError()) {
return result;
}
result = ReadBackupData(tag_info.uuid, tag_info.uuid_length, data);
if (result.IsError()) {
return result;
}
NFP::NTAG215File temporary_tag_data{};
NFP::EncryptedNTAG215File temporary_encrypted_tag_data{};
// Fallback for encrypted amiibos without keys
if (is_write_protected) {
return ResultWriteAmiiboFailed;
}
// Fallback for plain amiibos
if (is_plain_amiibo) {
LOG_INFO(Service_NFP, "Restoring backup of plain amiibo");
memcpy(&temporary_tag_data, data.data(), sizeof(NFP::EncryptedNTAG215File));
temporary_encrypted_tag_data = NFP::AmiiboCrypto::EncodedDataToNfcData(temporary_tag_data);
}
if (!is_plain_amiibo) {
LOG_INFO(Service_NFP, "Restoring backup of encrypted amiibo");
temporary_tag_data = {};
memcpy(&temporary_encrypted_tag_data, data.data(), sizeof(NFP::EncryptedNTAG215File));
}
if (!NFP::AmiiboCrypto::IsAmiiboValid(temporary_encrypted_tag_data)) {
return ResultInvalidTagType;
}
if (!is_plain_amiibo) {
if (!NFP::AmiiboCrypto::DecodeAmiibo(temporary_encrypted_tag_data, temporary_tag_data)) {
LOG_ERROR(Service_NFP, "Can't decode amiibo");
return ResultCorruptedData;
}
}
// Overwrite tag contents with backup and mount the tag
tag_data = temporary_tag_data;
encrypted_tag_data = temporary_encrypted_tag_data;
device_state = DeviceState::TagMounted;
mount_target = NFP::MountTarget::All;
is_data_moddified = true;
return ResultSuccess;
}
Result NfcDevice::GetCommonInfo(NFP::CommonInfo& common_info) const {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFP, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
const auto& settings = tag_data.settings;
// TODO: Validate this data
common_info = {
.last_write_date = settings.write_date.GetWriteDate(),
.write_counter = tag_data.application_write_counter,
.version = tag_data.amiibo_version,
.application_area_size = sizeof(NFP::ApplicationArea),
};
return ResultSuccess;
}
Result NfcDevice::GetModelInfo(NFP::ModelInfo& model_info) const {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
const auto& model_info_data = encrypted_tag_data.user_memory.model_info;
model_info = {
.character_id = model_info_data.character_id,
.character_variant = model_info_data.character_variant,
.amiibo_type = model_info_data.amiibo_type,
.model_number = model_info_data.model_number,
.series = model_info_data.series,
};
return ResultSuccess;
}
Result NfcDevice::GetRegisterInfo(NFP::RegisterInfo& register_info) const {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFP, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
if (tag_data.settings.settings.amiibo_initialized == 0) {
return ResultRegistrationIsNotInitialized;
}
Service::Mii::MiiManager manager;
const auto& settings = tag_data.settings;
// TODO: Validate this data
register_info = {
.mii_char_info = manager.ConvertV3ToCharInfo(tag_data.owner_mii),
.creation_date = settings.init_date.GetWriteDate(),
.amiibo_name = GetAmiiboName(settings),
.font_region = settings.settings.font_region,
};
return ResultSuccess;
}
Result NfcDevice::GetRegisterInfoPrivate(NFP::RegisterInfoPrivate& register_info) const {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFP, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
if (tag_data.settings.settings.amiibo_initialized == 0) {
return ResultRegistrationIsNotInitialized;
}
Service::Mii::MiiManager manager;
const auto& settings = tag_data.settings;
// TODO: Validate and complete this data
register_info = {
.mii_store_data = {},
.creation_date = settings.init_date.GetWriteDate(),
.amiibo_name = GetAmiiboName(settings),
.font_region = settings.settings.font_region,
};
return ResultSuccess;
}
Result NfcDevice::GetAdminInfo(NFP::AdminInfo& admin_info) const {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFC, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
u8 flags = static_cast<u8>(tag_data.settings.settings.raw >> 0x4);
if (tag_data.settings.settings.amiibo_initialized == 0) {
flags = flags & 0xfe;
}
u64 application_id = 0;
u32 application_area_id = 0;
NFP::AppAreaVersion app_area_version = NFP::AppAreaVersion::NotSet;
if (tag_data.settings.settings.appdata_initialized != 0) {
application_id = tag_data.application_id;
app_area_version = static_cast<NFP::AppAreaVersion>(
application_id >> NFP::application_id_version_offset & 0xf);
// Restore application id to original value
if (application_id >> 0x38 != 0) {
const u8 application_byte = tag_data.application_id_byte & 0xf;
application_id =
RemoveVersionByte(application_id) |
(static_cast<u64>(application_byte) << NFP::application_id_version_offset);
}
application_area_id = tag_data.application_area_id;
}
// TODO: Validate this data
admin_info = {
.application_id = application_id,
.application_area_id = application_area_id,
.crc_change_counter = tag_data.settings.crc_counter,
.flags = flags,
.tag_type = PackedTagType::Type2,
.app_area_version = app_area_version,
};
return ResultSuccess;
}
Result NfcDevice::DeleteRegisterInfo() {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFC, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
if (tag_data.settings.settings.amiibo_initialized == 0) {
return ResultRegistrationIsNotInitialized;
}
Common::TinyMT rng{};
rng.Initialize(static_cast<u32>(GetCurrentPosixTime()));
rng.GenerateRandomBytes(&tag_data.owner_mii, sizeof(tag_data.owner_mii));
rng.GenerateRandomBytes(&tag_data.settings.amiibo_name, sizeof(tag_data.settings.amiibo_name));
rng.GenerateRandomBytes(&tag_data.unknown, sizeof(u8));
rng.GenerateRandomBytes(&tag_data.unknown2[0], sizeof(u32));
rng.GenerateRandomBytes(&tag_data.unknown2[1], sizeof(u32));
rng.GenerateRandomBytes(&tag_data.register_info_crc, sizeof(u32));
rng.GenerateRandomBytes(&tag_data.settings.init_date, sizeof(u32));
tag_data.settings.settings.font_region.Assign(0);
tag_data.settings.settings.amiibo_initialized.Assign(0);
return Flush();
}
Result NfcDevice::SetRegisterInfoPrivate(const NFP::RegisterInfoPrivate& register_info) {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFP, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
Service::Mii::MiiManager manager;
const auto mii = manager.BuildBase(Mii::Gender::Male);
auto& settings = tag_data.settings;
if (tag_data.settings.settings.amiibo_initialized == 0) {
settings.init_date = GetAmiiboDate(GetCurrentPosixTime());
settings.write_date.raw_date = 0;
}
SetAmiiboName(settings, register_info.amiibo_name);
tag_data.owner_mii.BuildFromStoreData(mii);
tag_data.mii_extension = manager.SetFromStoreData(mii);
tag_data.unknown = 0;
tag_data.unknown2 = {};
settings.country_code_id = 0;
settings.settings.font_region.Assign(0);
settings.settings.amiibo_initialized.Assign(1);
UpdateRegisterInfoCrc();
return Flush();
}
Result NfcDevice::RestoreAmiibo() {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFP, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
// TODO: Load amiibo from backup on system
LOG_ERROR(Service_NFP, "Not Implemented");
return ResultSuccess;
}
Result NfcDevice::Format() {
auto result1 = DeleteApplicationArea();
auto result2 = DeleteRegisterInfo();
if (result1.IsError()) {
return result1;
}
if (result2.IsError()) {
return result2;
}
return Flush();
}
Result NfcDevice::OpenApplicationArea(u32 access_id) {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFP, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
if (tag_data.settings.settings.appdata_initialized.Value() == 0) {
LOG_WARNING(Service_NFP, "Application area is not initialized");
return ResultApplicationAreaIsNotInitialized;
}
if (tag_data.application_area_id != access_id) {
LOG_WARNING(Service_NFP, "Wrong application area id");
return ResultWrongApplicationAreaId;
}
is_app_area_open = true;
return ResultSuccess;
}
Result NfcDevice::GetApplicationAreaId(u32& application_area_id) const {
application_area_id = {};
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFP, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
if (tag_data.settings.settings.appdata_initialized.Value() == 0) {
LOG_WARNING(Service_NFP, "Application area is not initialized");
return ResultApplicationAreaIsNotInitialized;
}
application_area_id = tag_data.application_area_id;
return ResultSuccess;
}
Result NfcDevice::GetApplicationArea(std::span<u8> data) const {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFP, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
if (!is_app_area_open) {
LOG_ERROR(Service_NFP, "Application area is not open");
return ResultWrongDeviceState;
}
if (tag_data.settings.settings.appdata_initialized.Value() == 0) {
LOG_ERROR(Service_NFP, "Application area is not initialized");
return ResultApplicationAreaIsNotInitialized;
}
memcpy(data.data(), tag_data.application_area.data(),
std::min(data.size(), sizeof(NFP::ApplicationArea)));
return ResultSuccess;
}
Result NfcDevice::SetApplicationArea(std::span<const u8> data) {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFP, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
if (!is_app_area_open) {
LOG_ERROR(Service_NFP, "Application area is not open");
return ResultWrongDeviceState;
}
if (tag_data.settings.settings.appdata_initialized.Value() == 0) {
LOG_ERROR(Service_NFP, "Application area is not initialized");
return ResultApplicationAreaIsNotInitialized;
}
if (data.size() > sizeof(NFP::ApplicationArea)) {
LOG_ERROR(Service_NFP, "Wrong data size {}", data.size());
return ResultUnknown;
}
Common::TinyMT rng{};
rng.Initialize(static_cast<u32>(GetCurrentPosixTime()));
std::memcpy(tag_data.application_area.data(), data.data(), data.size());
// Fill remaining data with random numbers
rng.GenerateRandomBytes(tag_data.application_area.data() + data.size(),
sizeof(NFP::ApplicationArea) - data.size());
if (tag_data.application_write_counter != NFP::counter_limit) {
tag_data.application_write_counter++;
}
is_data_moddified = true;
return ResultSuccess;
}
Result NfcDevice::CreateApplicationArea(u32 access_id, std::span<const u8> data) {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (tag_data.settings.settings.appdata_initialized.Value() != 0) {
LOG_ERROR(Service_NFP, "Application area already exist");
return ResultApplicationAreaExist;
}
return RecreateApplicationArea(access_id, data);
}
Result NfcDevice::RecreateApplicationArea(u32 access_id, std::span<const u8> data) {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (is_app_area_open) {
LOG_ERROR(Service_NFP, "Application area is open");
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFP, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
if (data.size() > sizeof(NFP::ApplicationArea)) {
LOG_ERROR(Service_NFP, "Wrong data size {}", data.size());
return ResultWrongApplicationAreaSize;
}
Common::TinyMT rng{};
rng.Initialize(static_cast<u32>(GetCurrentPosixTime()));
std::memcpy(tag_data.application_area.data(), data.data(), data.size());
// Fill remaining data with random numbers
rng.GenerateRandomBytes(tag_data.application_area.data() + data.size(),
sizeof(NFP::ApplicationArea) - data.size());
if (tag_data.application_write_counter != NFP::counter_limit) {
tag_data.application_write_counter++;
}
const u64 application_id = system.GetApplicationProcessProgramID();
tag_data.application_id_byte =
static_cast<u8>(application_id >> NFP::application_id_version_offset & 0xf);
tag_data.application_id =
RemoveVersionByte(application_id) | (static_cast<u64>(NFP::AppAreaVersion::NintendoSwitch)
<< NFP::application_id_version_offset);
tag_data.settings.settings.appdata_initialized.Assign(1);
tag_data.application_area_id = access_id;
tag_data.unknown = {};
tag_data.unknown2 = {};
UpdateRegisterInfoCrc();
return Flush();
}
Result NfcDevice::DeleteApplicationArea() {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFP, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
if (tag_data.settings.settings.appdata_initialized == 0) {
return ResultApplicationAreaIsNotInitialized;
}
if (tag_data.application_write_counter != NFP::counter_limit) {
tag_data.application_write_counter++;
}
Common::TinyMT rng{};
rng.Initialize(static_cast<u32>(GetCurrentPosixTime()));
rng.GenerateRandomBytes(tag_data.application_area.data(), sizeof(NFP::ApplicationArea));
rng.GenerateRandomBytes(&tag_data.application_id, sizeof(u64));
rng.GenerateRandomBytes(&tag_data.application_area_id, sizeof(u32));
rng.GenerateRandomBytes(&tag_data.application_id_byte, sizeof(u8));
tag_data.settings.settings.appdata_initialized.Assign(0);
tag_data.unknown = {};
tag_data.unknown2 = {};
is_app_area_open = false;
UpdateRegisterInfoCrc();
return Flush();
}
Result NfcDevice::ExistsApplicationArea(bool& has_application_area) const {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFC, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
has_application_area = tag_data.settings.settings.appdata_initialized.Value() != 0;
return ResultSuccess;
}
Result NfcDevice::GetAll(NFP::NfpData& data) const {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFC, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
NFP::CommonInfo common_info{};
const u64 application_id = tag_data.application_id;
GetCommonInfo(common_info);
data = {
.magic = tag_data.constant_value,
.write_counter = tag_data.write_counter,
.settings_crc = tag_data.settings.crc,
.common_info = common_info,
.mii_char_info = tag_data.owner_mii,
.mii_store_data_extension = tag_data.mii_extension,
.creation_date = tag_data.settings.init_date.GetWriteDate(),
.amiibo_name = tag_data.settings.amiibo_name,
.amiibo_name_null_terminated = 0,
.settings = tag_data.settings.settings,
.unknown1 = tag_data.unknown,
.register_info_crc = tag_data.register_info_crc,
.unknown2 = tag_data.unknown2,
.application_id = application_id,
.access_id = tag_data.application_area_id,
.settings_crc_counter = tag_data.settings.crc_counter,
.font_region = tag_data.settings.settings.font_region,
.tag_type = PackedTagType::Type2,
.console_type = static_cast<NFP::AppAreaVersion>(
application_id >> NFP::application_id_version_offset & 0xf),
.application_id_byte = tag_data.application_id_byte,
.application_area = tag_data.application_area,
};
return ResultSuccess;
}
Result NfcDevice::SetAll(const NFP::NfpData& data) {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFC, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
tag_data.constant_value = data.magic;
tag_data.write_counter = data.write_counter;
tag_data.settings.crc = data.settings_crc;
tag_data.settings.write_date.SetWriteDate(data.common_info.last_write_date);
tag_data.write_counter = data.common_info.write_counter;
tag_data.amiibo_version = data.common_info.version;
tag_data.owner_mii = data.mii_char_info;
tag_data.mii_extension = data.mii_store_data_extension;
tag_data.settings.init_date.SetWriteDate(data.creation_date);
tag_data.settings.amiibo_name = data.amiibo_name;
tag_data.settings.settings = data.settings;
tag_data.unknown = data.unknown1;
tag_data.register_info_crc = data.register_info_crc;
tag_data.unknown2 = data.unknown2;
tag_data.application_id = data.application_id;
tag_data.application_area_id = data.access_id;
tag_data.settings.crc_counter = data.settings_crc_counter;
tag_data.settings.settings.font_region.Assign(data.font_region);
tag_data.application_id_byte = data.application_id_byte;
tag_data.application_area = data.application_area;
return ResultSuccess;
}
Result NfcDevice::BreakTag(NFP::BreakType break_type) {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFC, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
// TODO: Complete this implementation
return FlushWithBreak(break_type);
}
Result NfcDevice::HasBackup(const UniqueSerialNumber& uid, std::size_t uuid_size) const {
ASSERT_MSG(uuid_size < sizeof(UniqueSerialNumber), "Invalid UUID size");
constexpr auto backup_dir = "backup";
const auto yuzu_amiibo_dir = Common::FS::GetYuzuPath(Common::FS::YuzuPath::AmiiboDir);
const auto file_name =
fmt::format("{0:02x}.bin", fmt::join(uid.begin(), uid.begin() + uuid_size, ""));
if (!Common::FS::Exists(yuzu_amiibo_dir / backup_dir / file_name)) {
return ResultUnableToAccessBackupFile;
}
return ResultSuccess;
}
Result NfcDevice::HasBackup(const NFP::TagUuid& tag_uid) const {
UniqueSerialNumber uuid{};
memcpy(uuid.data(), &tag_uid, sizeof(NFP::TagUuid));
return HasBackup(uuid, sizeof(NFP::TagUuid));
}
Result NfcDevice::ReadBackupData(const UniqueSerialNumber& uid, std::size_t uuid_size,
std::span<u8> data) const {
ASSERT_MSG(uuid_size < sizeof(UniqueSerialNumber), "Invalid UUID size");
constexpr auto backup_dir = "backup";
const auto yuzu_amiibo_dir = Common::FS::GetYuzuPath(Common::FS::YuzuPath::AmiiboDir);
const auto file_name =
fmt::format("{0:02x}.bin", fmt::join(uid.begin(), uid.begin() + uuid_size, ""));
const Common::FS::IOFile keys_file{yuzu_amiibo_dir / backup_dir / file_name,
Common::FS::FileAccessMode::Read,
Common::FS::FileType::BinaryFile};
if (!keys_file.IsOpen()) {
LOG_ERROR(Service_NFP, "Failed to open amiibo backup");
return ResultUnableToAccessBackupFile;
}
if (keys_file.Read(data) != data.size()) {
LOG_ERROR(Service_NFP, "Failed to read amiibo backup");
return ResultUnableToAccessBackupFile;
}
return ResultSuccess;
}
Result NfcDevice::ReadBackupData(const NFP::TagUuid& tag_uid, std::span<u8> data) const {
UniqueSerialNumber uuid{};
memcpy(uuid.data(), &tag_uid, sizeof(NFP::TagUuid));
return ReadBackupData(uuid, sizeof(NFP::TagUuid), data);
}
Result NfcDevice::WriteBackupData(const UniqueSerialNumber& uid, std::size_t uuid_size,
std::span<const u8> data) {
ASSERT_MSG(uuid_size < sizeof(UniqueSerialNumber), "Invalid UUID size");
constexpr auto backup_dir = "backup";
const auto yuzu_amiibo_dir = Common::FS::GetYuzuPath(Common::FS::YuzuPath::AmiiboDir);
const auto file_name =
fmt::format("{0:02x}.bin", fmt::join(uid.begin(), uid.begin() + uuid_size, ""));
if (HasBackup(uid, uuid_size).IsError()) {
if (!Common::FS::CreateDir(yuzu_amiibo_dir / backup_dir)) {
return ResultBackupPathAlreadyExist;
}
if (!Common::FS::NewFile(yuzu_amiibo_dir / backup_dir / file_name)) {
return ResultBackupPathAlreadyExist;
}
}
const Common::FS::IOFile keys_file{yuzu_amiibo_dir / backup_dir / file_name,
Common::FS::FileAccessMode::ReadWrite,
Common::FS::FileType::BinaryFile};
if (!keys_file.IsOpen()) {
LOG_ERROR(Service_NFP, "Failed to open amiibo backup");
return ResultUnableToAccessBackupFile;
}
if (keys_file.Write(data) != data.size()) {
LOG_ERROR(Service_NFP, "Failed to write amiibo backup");
return ResultUnableToAccessBackupFile;
}
return ResultSuccess;
}
Result NfcDevice::WriteBackupData(const NFP::TagUuid& tag_uid, std::span<const u8> data) {
UniqueSerialNumber uuid{};
memcpy(uuid.data(), &tag_uid, sizeof(NFP::TagUuid));
return WriteBackupData(uuid, sizeof(NFP::TagUuid), data);
}
Result NfcDevice::WriteNtf(std::span<const u8> data) {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
return ResultTagRemoved;
}
return ResultWrongDeviceState;
}
if (mount_target == NFP::MountTarget::None || mount_target == NFP::MountTarget::Rom) {
LOG_ERROR(Service_NFC, "Amiibo is read only", device_state);
return ResultWrongDeviceState;
}
// Not implemented
return ResultSuccess;
}
NFP::AmiiboName NfcDevice::GetAmiiboName(const NFP::AmiiboSettings& settings) const {
std::array<char16_t, NFP::amiibo_name_length> settings_amiibo_name{};
NFP::AmiiboName amiibo_name{};
// Convert from big endian to little endian
for (std::size_t i = 0; i < NFP::amiibo_name_length; i++) {
settings_amiibo_name[i] = static_cast<u16>(settings.amiibo_name[i]);
}
// Convert from utf16 to utf8
const auto amiibo_name_utf8 = Common::UTF16ToUTF8(settings_amiibo_name.data());
memcpy(amiibo_name.data(), amiibo_name_utf8.data(), amiibo_name_utf8.size());
return amiibo_name;
}
void NfcDevice::SetAmiiboName(NFP::AmiiboSettings& settings,
const NFP::AmiiboName& amiibo_name) const {
std::array<char16_t, NFP::amiibo_name_length> settings_amiibo_name{};
// Convert from utf8 to utf16
const auto amiibo_name_utf16 = Common::UTF8ToUTF16(amiibo_name.data());
memcpy(settings_amiibo_name.data(), amiibo_name_utf16.data(),
amiibo_name_utf16.size() * sizeof(char16_t));
// Convert from little endian to big endian
for (std::size_t i = 0; i < NFP::amiibo_name_length; i++) {
settings.amiibo_name[i] = static_cast<u16_be>(settings_amiibo_name[i]);
}
}
NFP::AmiiboDate NfcDevice::GetAmiiboDate(s64 posix_time) const {
const auto& time_zone_manager =
system.GetTimeManager().GetTimeZoneContentManager().GetTimeZoneManager();
Time::TimeZone::CalendarInfo calendar_info{};
NFP::AmiiboDate amiibo_date{};
amiibo_date.SetYear(2000);
amiibo_date.SetMonth(1);
amiibo_date.SetDay(1);
if (time_zone_manager.ToCalendarTime({}, posix_time, calendar_info) == ResultSuccess) {
amiibo_date.SetYear(calendar_info.time.year);
amiibo_date.SetMonth(calendar_info.time.month);
amiibo_date.SetDay(calendar_info.time.day);
}
return amiibo_date;
}
u64 NfcDevice::GetCurrentPosixTime() const {
auto& standard_steady_clock{system.GetTimeManager().GetStandardSteadyClockCore()};
return standard_steady_clock.GetCurrentTimePoint(system).time_point;
}
u64 NfcDevice::RemoveVersionByte(u64 application_id) const {
return application_id & ~(0xfULL << NFP::application_id_version_offset);
}
void NfcDevice::UpdateSettingsCrc() {
auto& settings = tag_data.settings;
if (settings.crc_counter != NFP::counter_limit) {
settings.crc_counter++;
}
// TODO: this reads data from a global, find what it is
std::array<u8, 8> unknown_input{};
boost::crc_32_type crc;
crc.process_bytes(&unknown_input, sizeof(unknown_input));
settings.crc = crc.checksum();
}
void NfcDevice::UpdateRegisterInfoCrc() {
#pragma pack(push, 1)
struct CrcData {
Mii::Ver3StoreData mii;
u8 application_id_byte;
u8 unknown;
Mii::NfpStoreDataExtension mii_extension;
std::array<u32, 0x5> unknown2;
};
static_assert(sizeof(CrcData) == 0x7e, "CrcData is an invalid size");
#pragma pack(pop)
const CrcData crc_data{
.mii = tag_data.owner_mii,
.application_id_byte = tag_data.application_id_byte,
.unknown = tag_data.unknown,
.mii_extension = tag_data.mii_extension,
.unknown2 = tag_data.unknown2,
};
boost::crc_32_type crc;
crc.process_bytes(&crc_data, sizeof(CrcData));
tag_data.register_info_crc = crc.checksum();
}
void NfcDevice::BuildAmiiboWithoutKeys(NFP::NTAG215File& stubbed_tag_data,
const NFP::EncryptedNTAG215File& encrypted_file) const {
Service::Mii::MiiManager manager;
auto& settings = stubbed_tag_data.settings;
stubbed_tag_data = NFP::AmiiboCrypto::NfcDataToEncodedData(encrypted_file);
// Common info
stubbed_tag_data.write_counter = 0;
stubbed_tag_data.amiibo_version = 0;
settings.write_date = GetAmiiboDate(GetCurrentPosixTime());
// Register info
SetAmiiboName(settings, {'y', 'u', 'z', 'u', 'A', 'm', 'i', 'i', 'b', 'o'});
settings.settings.font_region.Assign(0);
settings.init_date = GetAmiiboDate(GetCurrentPosixTime());
stubbed_tag_data.owner_mii.BuildFromStoreData(manager.BuildBase(Mii::Gender::Male));
// Admin info
settings.settings.amiibo_initialized.Assign(1);
settings.settings.appdata_initialized.Assign(0);
}
u64 NfcDevice::GetHandle() const {
// Generate a handle based of the npad id
return static_cast<u64>(npad_id);
}
DeviceState NfcDevice::GetCurrentState() const {
return device_state;
}
Result NfcDevice::GetNpadId(Core::HID::NpadIdType& out_npad_id) const {
// TODO: This should get the npad id from nn::hid::system::GetXcdHandleForNpadWithNfc
out_npad_id = npad_id;
return ResultSuccess;
}
} // namespace Service::NFC