core: nfp: Implement amiibo encryption

This commit is contained in:
german77
2022-02-13 11:54:39 -06:00
parent 4ffbbc5348
commit 848f69eb19
7 changed files with 1235 additions and 284 deletions

View File

@ -4,6 +4,8 @@
#include <array>
#include <atomic>
#include "common/fs/file.h"
#include "common/fs/path_util.h"
#include "common/logging/log.h"
#include "core/core.h"
#include "core/hid/emulated_controller.h"
@ -12,6 +14,7 @@
#include "core/hle/ipc_helpers.h"
#include "core/hle/kernel/k_event.h"
#include "core/hle/service/mii/mii_manager.h"
#include "core/hle/service/nfp/amiibo_crypto.h"
#include "core/hle/service/nfp/nfp.h"
#include "core/hle/service/nfp/nfp_user.h"
@ -19,12 +22,13 @@ namespace Service::NFP {
namespace ErrCodes {
constexpr Result DeviceNotFound(ErrorModule::NFP, 64);
constexpr Result WrongDeviceState(ErrorModule::NFP, 73);
constexpr Result NfcDisabled(ErrorModule::NFP, 80);
constexpr Result WriteAmiiboFailed(ErrorModule::NFP, 88);
constexpr Result ApplicationAreaIsNotInitialized(ErrorModule::NFP, 128);
constexpr Result WrongApplicationAreaId(ErrorModule::NFP, 152);
constexpr Result ApplicationAreaExist(ErrorModule::NFP, 168);
} // namespace ErrCodes
constexpr u32 ApplicationAreaSize = 0xD8;
IUser::IUser(Module::Interface& nfp_interface_, Core::System& system_)
: ServiceFramework{system_, "NFP::IUser"}, service_context{system_, service_name},
nfp_interface{nfp_interface_} {
@ -39,7 +43,7 @@ IUser::IUser(Module::Interface& nfp_interface_, Core::System& system_)
{7, &IUser::OpenApplicationArea, "OpenApplicationArea"},
{8, &IUser::GetApplicationArea, "GetApplicationArea"},
{9, &IUser::SetApplicationArea, "SetApplicationArea"},
{10, nullptr, "Flush"},
{10, &IUser::Flush, "Flush"},
{11, nullptr, "Restore"},
{12, &IUser::CreateApplicationArea, "CreateApplicationArea"},
{13, &IUser::GetTagInfo, "GetTagInfo"},
@ -87,11 +91,23 @@ void IUser::Finalize(Kernel::HLERequestContext& ctx) {
void IUser::ListDevices(Kernel::HLERequestContext& ctx) {
LOG_INFO(Service_NFP, "called");
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
std::vector<u64> devices;
// TODO(german77): Loop through all interfaces
devices.push_back(nfp_interface.GetHandle());
if (devices.size() == 0) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::DeviceNotFound);
return;
}
ctx.WriteBuffer(devices);
IPC::ResponseBuilder rb{ctx, 3};
@ -105,6 +121,12 @@ void IUser::StartDetection(Kernel::HLERequestContext& ctx) {
const auto nfp_protocol{rp.Pop<s32>()};
LOG_INFO(Service_NFP, "called, device_handle={}, nfp_protocol={}", device_handle, nfp_protocol);
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
// TODO(german77): Loop through all interfaces
if (device_handle == nfp_interface.GetHandle()) {
const auto result = nfp_interface.StartDetection(nfp_protocol);
@ -124,6 +146,12 @@ void IUser::StopDetection(Kernel::HLERequestContext& ctx) {
const auto device_handle{rp.Pop<u64>()};
LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
// TODO(german77): Loop through all interfaces
if (device_handle == nfp_interface.GetHandle()) {
const auto result = nfp_interface.StopDetection();
@ -146,6 +174,12 @@ void IUser::Mount(Kernel::HLERequestContext& ctx) {
LOG_INFO(Service_NFP, "called, device_handle={}, model_type={}, mount_target={}", device_handle,
model_type, mount_target);
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
// TODO(german77): Loop through all interfaces
if (device_handle == nfp_interface.GetHandle()) {
const auto result = nfp_interface.Mount();
@ -165,6 +199,12 @@ void IUser::Unmount(Kernel::HLERequestContext& ctx) {
const auto device_handle{rp.Pop<u64>()};
LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
// TODO(german77): Loop through all interfaces
if (device_handle == nfp_interface.GetHandle()) {
const auto result = nfp_interface.Unmount();
@ -186,6 +226,12 @@ void IUser::OpenApplicationArea(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_NFP, "(STUBBED) called, device_handle={}, access_id={}", device_handle,
access_id);
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
// TODO(german77): Loop through all interfaces
if (device_handle == nfp_interface.GetHandle()) {
const auto result = nfp_interface.OpenApplicationArea(access_id);
@ -205,9 +251,15 @@ void IUser::GetApplicationArea(Kernel::HLERequestContext& ctx) {
const auto device_handle{rp.Pop<u64>()};
LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
// TODO(german77): Loop through all interfaces
if (device_handle == nfp_interface.GetHandle()) {
std::vector<u8> data{};
ApplicationArea data{};
const auto result = nfp_interface.GetApplicationArea(data);
ctx.WriteBuffer(data);
IPC::ResponseBuilder rb{ctx, 3};
@ -229,6 +281,12 @@ void IUser::SetApplicationArea(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_NFP, "(STUBBED) called, device_handle={}, data_size={}", device_handle,
data.size());
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
// TODO(german77): Loop through all interfaces
if (device_handle == nfp_interface.GetHandle()) {
const auto result = nfp_interface.SetApplicationArea(data);
@ -243,6 +301,31 @@ void IUser::SetApplicationArea(Kernel::HLERequestContext& ctx) {
rb.Push(ErrCodes::DeviceNotFound);
}
void IUser::Flush(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const auto device_handle{rp.Pop<u64>()};
LOG_WARNING(Service_NFP, "(STUBBED) called, device_handle={}", device_handle);
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
// TODO(german77): Loop through all interfaces
if (device_handle == nfp_interface.GetHandle()) {
const auto result = nfp_interface.Flush();
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result);
return;
}
LOG_ERROR(Service_NFP, "Handle not found, device_handle={}", device_handle);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::DeviceNotFound);
}
void IUser::CreateApplicationArea(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const auto device_handle{rp.Pop<u64>()};
@ -251,6 +334,12 @@ void IUser::CreateApplicationArea(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_NFP, "(STUBBED) called, device_handle={}, data_size={}, access_id={}",
device_handle, access_id, data.size());
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
// TODO(german77): Loop through all interfaces
if (device_handle == nfp_interface.GetHandle()) {
const auto result = nfp_interface.CreateApplicationArea(access_id, data);
@ -270,6 +359,12 @@ void IUser::GetTagInfo(Kernel::HLERequestContext& ctx) {
const auto device_handle{rp.Pop<u64>()};
LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
// TODO(german77): Loop through all interfaces
if (device_handle == nfp_interface.GetHandle()) {
TagInfo tag_info{};
@ -291,6 +386,12 @@ void IUser::GetRegisterInfo(Kernel::HLERequestContext& ctx) {
const auto device_handle{rp.Pop<u64>()};
LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
// TODO(german77): Loop through all interfaces
if (device_handle == nfp_interface.GetHandle()) {
RegisterInfo register_info{};
@ -312,6 +413,12 @@ void IUser::GetCommonInfo(Kernel::HLERequestContext& ctx) {
const auto device_handle{rp.Pop<u64>()};
LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
// TODO(german77): Loop through all interfaces
if (device_handle == nfp_interface.GetHandle()) {
CommonInfo common_info{};
@ -333,6 +440,12 @@ void IUser::GetModelInfo(Kernel::HLERequestContext& ctx) {
const auto device_handle{rp.Pop<u64>()};
LOG_INFO(Service_NFP, "called, device_handle={}", device_handle);
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
// TODO(german77): Loop through all interfaces
if (device_handle == nfp_interface.GetHandle()) {
ModelInfo model_info{};
@ -354,6 +467,12 @@ void IUser::AttachActivateEvent(Kernel::HLERequestContext& ctx) {
const auto device_handle{rp.Pop<u64>()};
LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
// TODO(german77): Loop through all interfaces
if (device_handle == nfp_interface.GetHandle()) {
IPC::ResponseBuilder rb{ctx, 2, 1};
@ -373,6 +492,12 @@ void IUser::AttachDeactivateEvent(Kernel::HLERequestContext& ctx) {
const auto device_handle{rp.Pop<u64>()};
LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
// TODO(german77): Loop through all interfaces
if (device_handle == nfp_interface.GetHandle()) {
IPC::ResponseBuilder rb{ctx, 2, 1};
@ -419,6 +544,12 @@ void IUser::GetNpadId(Kernel::HLERequestContext& ctx) {
const auto device_handle{rp.Pop<u64>()};
LOG_DEBUG(Service_NFP, "called, device_handle={}", device_handle);
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
// TODO(german77): Loop through all interfaces
if (device_handle == nfp_interface.GetHandle()) {
IPC::ResponseBuilder rb{ctx, 3};
@ -442,7 +573,7 @@ void IUser::GetApplicationAreaSize(Kernel::HLERequestContext& ctx) {
if (device_handle == nfp_interface.GetHandle()) {
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(ResultSuccess);
rb.Push(ApplicationAreaSize);
rb.Push(sizeof(ApplicationArea));
return;
}
@ -455,6 +586,12 @@ void IUser::GetApplicationAreaSize(Kernel::HLERequestContext& ctx) {
void IUser::AttachAvailabilityChangeEvent(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_NFP, "(STUBBED) called");
if (state == State::NonInitialized) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ErrCodes::NfcDisabled);
return;
}
IPC::ResponseBuilder rb{ctx, 2, 1};
rb.Push(ResultSuccess);
rb.PushCopyObjects(availability_change_event->GetReadableEvent());
@ -478,37 +615,43 @@ void Module::Interface::CreateUserInterface(Kernel::HLERequestContext& ctx) {
rb.PushIpcInterface<IUser>(*this, system);
}
bool Module::Interface::LoadAmiibo(const std::vector<u8>& buffer) {
bool Module::Interface::LoadAmiiboFile(const std::string& filename) {
constexpr auto tag_size_without_password = sizeof(NTAG215File) - sizeof(NTAG215Password);
const Common::FS::IOFile amiibo_file{filename, Common::FS::FileAccessMode::Read,
Common::FS::FileType::BinaryFile};
if (!amiibo_file.IsOpen()) {
LOG_ERROR(Core, "Amiibo is already on use");
return false;
}
// Workaround for files with missing password data
std::array<u8, sizeof(EncryptedNTAG215File)> buffer{};
if (amiibo_file.Read(buffer) < tag_size_without_password) {
LOG_ERROR(Core, "Failed to read amiibo file");
return false;
}
memcpy(&encrypted_tag_data, buffer.data(), sizeof(EncryptedNTAG215File));
if (!AmiiboCrypto::IsAmiiboValid(encrypted_tag_data)) {
LOG_INFO(Service_NFP, "Invalid amiibo");
return false;
}
file_path = filename;
return true;
}
bool Module::Interface::LoadAmiibo(const std::string& filename) {
if (device_state != DeviceState::SearchingForTag) {
LOG_ERROR(Service_NFP, "Game is not looking for amiibos, current state {}", device_state);
return false;
}
constexpr auto tag_size = sizeof(NTAG215File);
constexpr auto tag_size_without_password = sizeof(NTAG215File) - sizeof(NTAG215Password);
std::vector<u8> amiibo_buffer = buffer;
if (amiibo_buffer.size() < tag_size_without_password) {
LOG_ERROR(Service_NFP, "Wrong file size {}", buffer.size());
if (!LoadAmiiboFile(filename)) {
return false;
}
// Ensure it has the correct size
if (amiibo_buffer.size() != tag_size) {
amiibo_buffer.resize(tag_size, 0);
}
LOG_INFO(Service_NFP, "Amiibo detected");
std::memcpy(&tag_data, buffer.data(), tag_size);
if (!IsAmiiboValid()) {
return false;
}
// This value can't be dumped from a tag. Generate it
tag_data.password.PWD = GetTagPassword(tag_data.uuid);
device_state = DeviceState::TagFound;
activate_event->GetWritableEvent().Signal();
return true;
@ -517,55 +660,13 @@ bool Module::Interface::LoadAmiibo(const std::vector<u8>& buffer) {
void Module::Interface::CloseAmiibo() {
LOG_INFO(Service_NFP, "Remove amiibo");
device_state = DeviceState::TagRemoved;
is_data_decoded = false;
is_application_area_initialized = false;
application_area_id = 0;
application_area_data.clear();
encrypted_tag_data = {};
tag_data = {};
deactivate_event->GetWritableEvent().Signal();
}
bool Module::Interface::IsAmiiboValid() const {
const auto& amiibo_data = tag_data.user_memory;
LOG_DEBUG(Service_NFP, "uuid_lock=0x{0:x}", tag_data.lock_bytes);
LOG_DEBUG(Service_NFP, "compability_container=0x{0:x}", tag_data.compability_container);
LOG_DEBUG(Service_NFP, "crypto_init=0x{0:x}", amiibo_data.crypto_init);
LOG_DEBUG(Service_NFP, "write_count={}", amiibo_data.write_count);
LOG_DEBUG(Service_NFP, "character_id=0x{0:x}", amiibo_data.model_info.character_id);
LOG_DEBUG(Service_NFP, "character_variant={}", amiibo_data.model_info.character_variant);
LOG_DEBUG(Service_NFP, "amiibo_type={}", amiibo_data.model_info.amiibo_type);
LOG_DEBUG(Service_NFP, "model_number=0x{0:x}", amiibo_data.model_info.model_number);
LOG_DEBUG(Service_NFP, "series={}", amiibo_data.model_info.series);
LOG_DEBUG(Service_NFP, "fixed_value=0x{0:x}", amiibo_data.model_info.fixed);
LOG_DEBUG(Service_NFP, "tag_dynamic_lock=0x{0:x}", tag_data.dynamic_lock);
LOG_DEBUG(Service_NFP, "tag_CFG0=0x{0:x}", tag_data.CFG0);
LOG_DEBUG(Service_NFP, "tag_CFG1=0x{0:x}", tag_data.CFG1);
// Check against all know constants on an amiibo binary
if (tag_data.lock_bytes != 0xE00F) {
return false;
}
if (tag_data.compability_container != 0xEEFF10F1U) {
return false;
}
if ((amiibo_data.crypto_init & 0xFF) != 0xA5) {
return false;
}
if (amiibo_data.model_info.fixed != 0x02) {
return false;
}
if ((tag_data.dynamic_lock & 0xFFFFFF) != 0x0F0001) {
return false;
}
if (tag_data.CFG0 != 0x04000000U) {
return false;
}
if (tag_data.CFG1 != 0x5F) {
return false;
}
return true;
}
Kernel::KReadableEvent& Module::Interface::GetActivateEvent() const {
return activate_event->GetReadableEvent();
}
@ -576,13 +677,20 @@ Kernel::KReadableEvent& Module::Interface::GetDeactivateEvent() const {
void Module::Interface::Initialize() {
device_state = DeviceState::Initialized;
is_data_decoded = false;
is_application_area_initialized = false;
encrypted_tag_data = {};
tag_data = {};
}
void Module::Interface::Finalize() {
if (device_state == DeviceState::TagMounted) {
Unmount();
}
if (device_state == DeviceState::SearchingForTag || device_state == DeviceState::TagRemoved) {
StopDetection();
}
device_state = DeviceState::Unaviable;
is_application_area_initialized = false;
application_area_id = 0;
application_area_data.clear();
}
Result Module::Interface::StartDetection(s32 protocol_) {
@ -618,42 +726,102 @@ Result Module::Interface::StopDetection() {
return ErrCodes::WrongDeviceState;
}
Result Module::Interface::Mount() {
if (device_state == DeviceState::TagFound) {
device_state = DeviceState::TagMounted;
Result Module::Interface::Flush() {
// Ignore write command if we can't encrypt the data
if (!is_data_decoded) {
return ResultSuccess;
}
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
return ErrCodes::WrongDeviceState;
constexpr auto tag_size_without_password = sizeof(NTAG215File) - sizeof(NTAG215Password);
EncryptedNTAG215File tmp_encrypted_tag_data{};
const Common::FS::IOFile amiibo_file{file_path, Common::FS::FileAccessMode::ReadWrite,
Common::FS::FileType::BinaryFile};
if (!amiibo_file.IsOpen()) {
LOG_ERROR(Core, "Amiibo is already on use");
return ErrCodes::WriteAmiiboFailed;
}
// Workaround for files with missing password data
std::array<u8, sizeof(EncryptedNTAG215File)> buffer{};
if (amiibo_file.Read(buffer) < tag_size_without_password) {
LOG_ERROR(Core, "Failed to read amiibo file");
return ErrCodes::WriteAmiiboFailed;
}
memcpy(&tmp_encrypted_tag_data, buffer.data(), sizeof(EncryptedNTAG215File));
if (!AmiiboCrypto::IsAmiiboValid(tmp_encrypted_tag_data)) {
LOG_INFO(Service_NFP, "Invalid amiibo");
return ErrCodes::WriteAmiiboFailed;
}
bool is_uuid_equal = memcmp(tmp_encrypted_tag_data.uuid.data(), tag_data.uuid.data(), 8) == 0;
bool is_character_equal = tmp_encrypted_tag_data.user_memory.model_info.character_id ==
tag_data.model_info.character_id;
if (!is_uuid_equal || !is_character_equal) {
LOG_ERROR(Core, "Not the same amiibo");
return ErrCodes::WriteAmiiboFailed;
}
if (!AmiiboCrypto::EncodeAmiibo(tag_data, encrypted_tag_data)) {
LOG_ERROR(Core, "Failed to encode data");
return ErrCodes::WriteAmiiboFailed;
}
// Return to the start of the file
if (!amiibo_file.Seek(0)) {
LOG_ERROR(Service_NFP, "Error writting to file");
return ErrCodes::WriteAmiiboFailed;
}
if (!amiibo_file.Write(encrypted_tag_data)) {
LOG_ERROR(Service_NFP, "Error writting to file");
return ErrCodes::WriteAmiiboFailed;
}
return ResultSuccess;
}
Result Module::Interface::Mount() {
if (device_state != DeviceState::TagFound) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
return ErrCodes::WrongDeviceState;
}
is_data_decoded = AmiiboCrypto::DecodeAmiibo(encrypted_tag_data, tag_data);
LOG_INFO(Service_NFP, "Is amiibo decoded {}", is_data_decoded);
is_application_area_initialized = false;
device_state = DeviceState::TagMounted;
return ResultSuccess;
}
Result Module::Interface::Unmount() {
if (device_state == DeviceState::TagMounted) {
is_application_area_initialized = false;
application_area_id = 0;
application_area_data.clear();
device_state = DeviceState::TagFound;
return ResultSuccess;
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
return ErrCodes::WrongDeviceState;
}
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
return ErrCodes::WrongDeviceState;
is_data_decoded = false;
is_application_area_initialized = false;
device_state = DeviceState::TagFound;
return ResultSuccess;
}
Result Module::Interface::GetTagInfo(TagInfo& tag_info) const {
if (device_state == DeviceState::TagFound || device_state == DeviceState::TagMounted) {
tag_info = {
.uuid = tag_data.uuid,
.uuid_length = static_cast<u8>(tag_data.uuid.size()),
.protocol = protocol,
.tag_type = static_cast<u32>(tag_data.user_memory.model_info.amiibo_type),
};
return ResultSuccess;
if (device_state != DeviceState::TagFound && device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
return ErrCodes::WrongDeviceState;
}
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
return ErrCodes::WrongDeviceState;
tag_info = {
.uuid = encrypted_tag_data.uuid,
.uuid_length = static_cast<u8>(encrypted_tag_data.uuid.size()),
.protocol = protocol,
.tag_type = static_cast<u32>(encrypted_tag_data.user_memory.model_info.amiibo_type),
};
return ResultSuccess;
}
Result Module::Interface::GetCommonInfo(CommonInfo& common_info) const {
@ -662,14 +830,28 @@ Result Module::Interface::GetCommonInfo(CommonInfo& common_info) const {
return ErrCodes::WrongDeviceState;
}
// Read this data from the amiibo save file
if (is_data_decoded) {
const auto& settings = tag_data.settings;
// TODO: Validate this data
common_info = {
.last_write_year = static_cast<u16>(settings.write_date.year.Value()),
.last_write_month = static_cast<u8>(settings.write_date.month.Value()),
.last_write_day = static_cast<u8>(settings.write_date.day.Value()),
.write_counter = settings.crc_counter,
.version = 1,
.application_area_size = sizeof(ApplicationArea),
};
return ResultSuccess;
}
// Generate a generic answer
common_info = {
.last_write_year = 2022,
.last_write_month = 2,
.last_write_day = 7,
.write_counter = tag_data.user_memory.write_count,
.write_counter = 0,
.version = 1,
.application_area_size = ApplicationAreaSize,
.application_area_size = sizeof(ApplicationArea),
};
return ResultSuccess;
}
@ -680,7 +862,15 @@ Result Module::Interface::GetModelInfo(ModelInfo& model_info) const {
return ErrCodes::WrongDeviceState;
}
model_info = tag_data.user_memory.model_info;
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,
.constant_value = model_info_data.constant_value,
};
return ResultSuccess;
}
@ -690,9 +880,30 @@ Result Module::Interface::GetRegisterInfo(RegisterInfo& register_info) const {
return ErrCodes::WrongDeviceState;
}
Service::Mii::MiiManager manager;
if (is_data_decoded) {
const auto& settings = tag_data.settings;
// Read this data from the amiibo save file
// Amiibo name is u16 while the register info is u8. Figure out how to handle this properly
std::array<u8, 11> amiibo_name{};
for (std::size_t i = 0; i < sizeof(amiibo_name) - 1; ++i) {
amiibo_name[i] = static_cast<u8>(settings.amiibo_name[i]);
}
// TODO: Validate this data
register_info = {
.mii_char_info = AmiiboCrypto::AmiiboRegisterInfoToMii(tag_data.owner_mii),
.first_write_year = static_cast<u16>(settings.init_date.year.Value()),
.first_write_month = static_cast<u8>(settings.init_date.month.Value()),
.first_write_day = static_cast<u8>(settings.init_date.day.Value()),
.amiibo_name = amiibo_name,
.unknown = {},
};
return ResultSuccess;
}
// Generate a generic answer
Service::Mii::MiiManager manager;
register_info = {
.mii_char_info = manager.BuildDefault(0),
.first_write_year = 2022,
@ -709,29 +920,39 @@ Result Module::Interface::OpenApplicationArea(u32 access_id) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
return ErrCodes::WrongDeviceState;
}
if (AmiiboApplicationDataExist(access_id)) {
application_area_data = LoadAmiiboApplicationData(access_id);
application_area_id = access_id;
is_application_area_initialized = true;
}
if (!is_application_area_initialized) {
// Fallback for lack of amiibo keys
if (!is_data_decoded) {
LOG_WARNING(Service_NFP, "Application area is not initialized");
return ErrCodes::ApplicationAreaIsNotInitialized;
}
if (tag_data.settings.settings.appdata_initialized == 0) {
LOG_WARNING(Service_NFP, "Application area is not initialized");
return ErrCodes::ApplicationAreaIsNotInitialized;
}
if (tag_data.application_area_id != access_id) {
LOG_WARNING(Service_NFP, "Wrong application area id");
return ErrCodes::WrongApplicationAreaId;
}
is_application_area_initialized = true;
return ResultSuccess;
}
Result Module::Interface::GetApplicationArea(std::vector<u8>& data) const {
Result Module::Interface::GetApplicationArea(ApplicationArea& data) const {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
return ErrCodes::WrongDeviceState;
}
if (!is_application_area_initialized) {
LOG_ERROR(Service_NFP, "Application area is not initialized");
return ErrCodes::ApplicationAreaIsNotInitialized;
}
data = application_area_data;
data = tag_data.application_area;
return ResultSuccess;
}
@ -741,12 +962,18 @@ Result Module::Interface::SetApplicationArea(const std::vector<u8>& data) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
return ErrCodes::WrongDeviceState;
}
if (!is_application_area_initialized) {
LOG_ERROR(Service_NFP, "Application area is not initialized");
return ErrCodes::ApplicationAreaIsNotInitialized;
}
application_area_data = data;
SaveAmiiboApplicationData(application_area_id, application_area_data);
if (data.size() != sizeof(ApplicationArea)) {
LOG_ERROR(Service_NFP, "Wrong data size {}", data.size());
return ResultUnknown;
}
std::memcpy(&tag_data.application_area, data.data(), sizeof(ApplicationArea));
return ResultSuccess;
}
@ -755,32 +982,23 @@ Result Module::Interface::CreateApplicationArea(u32 access_id, const std::vector
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
return ErrCodes::WrongDeviceState;
}
if (AmiiboApplicationDataExist(access_id)) {
if (tag_data.settings.settings.appdata_initialized != 0) {
LOG_ERROR(Service_NFP, "Application area already exist");
return ErrCodes::ApplicationAreaExist;
}
application_area_data = data;
application_area_id = access_id;
SaveAmiiboApplicationData(application_area_id, application_area_data);
if (data.size() != sizeof(ApplicationArea)) {
LOG_ERROR(Service_NFP, "Wrong data size {}", data.size());
return ResultUnknown;
}
std::memcpy(&tag_data.application_area, data.data(), sizeof(ApplicationArea));
tag_data.application_area_id = access_id;
return ResultSuccess;
}
bool Module::Interface::AmiiboApplicationDataExist(u32 access_id) const {
// TODO(german77): Check if file exist
return false;
}
std::vector<u8> Module::Interface::LoadAmiiboApplicationData(u32 access_id) const {
// TODO(german77): Read file
std::vector<u8> data(ApplicationAreaSize);
return data;
}
void Module::Interface::SaveAmiiboApplicationData(u32 access_id,
const std::vector<u8>& data) const {
// TODO(german77): Save file
}
u64 Module::Interface::GetHandle() const {
// Generate a handle based of the npad id
return static_cast<u64>(npad_id);
@ -794,15 +1012,6 @@ Core::HID::NpadIdType Module::Interface::GetNpadId() const {
return npad_id;
}
u32 Module::Interface::GetTagPassword(const TagUuid& uuid) const {
// Verifiy that the generated password is correct
u32 password = 0xAA ^ (uuid[1] ^ uuid[3]);
password &= (0x55 ^ (uuid[2] ^ uuid[4])) << 8;
password &= (0xAA ^ (uuid[3] ^ uuid[5])) << 16;
password &= (0x55 ^ (uuid[4] ^ uuid[6])) << 24;
return password;
}
void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system) {
auto module = std::make_shared<Module>();
std::make_shared<NFP_User>(module, system)->InstallAsService(service_manager);