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-rw-r--r--src/core/hle/service/nfp/amiibo_crypto.cpp14
-rw-r--r--src/core/hle/service/nfp/nfp_device.cpp210
-rw-r--r--src/core/hle/service/nfp/nfp_device.h9
-rw-r--r--src/core/hle/service/nfp/nfp_types.h49
4 files changed, 232 insertions, 50 deletions
diff --git a/src/core/hle/service/nfp/amiibo_crypto.cpp b/src/core/hle/service/nfp/amiibo_crypto.cpp
index ffb2f959c..ddf04b1d7 100644
--- a/src/core/hle/service/nfp/amiibo_crypto.cpp
+++ b/src/core/hle/service/nfp/amiibo_crypto.cpp
@@ -80,13 +80,16 @@ NTAG215File NfcDataToEncodedData(const EncryptedNTAG215File& nfc_data) {
encoded_data.hmac_data = nfc_data.user_memory.hmac_data;
encoded_data.constant_value = nfc_data.user_memory.constant_value;
encoded_data.write_counter = nfc_data.user_memory.write_counter;
+ encoded_data.amiibo_version = nfc_data.user_memory.amiibo_version;
encoded_data.settings = nfc_data.user_memory.settings;
encoded_data.owner_mii = nfc_data.user_memory.owner_mii;
- encoded_data.title_id = nfc_data.user_memory.title_id;
- encoded_data.applicaton_write_counter = nfc_data.user_memory.applicaton_write_counter;
+ encoded_data.application_id = nfc_data.user_memory.application_id;
+ encoded_data.application_write_counter = nfc_data.user_memory.application_write_counter;
encoded_data.application_area_id = nfc_data.user_memory.application_area_id;
+ encoded_data.application_id_byte = nfc_data.user_memory.application_id_byte;
encoded_data.unknown = nfc_data.user_memory.unknown;
encoded_data.unknown2 = nfc_data.user_memory.unknown2;
+ encoded_data.application_area_crc = nfc_data.user_memory.application_area_crc;
encoded_data.application_area = nfc_data.user_memory.application_area;
encoded_data.hmac_tag = nfc_data.user_memory.hmac_tag;
encoded_data.lock_bytes = nfc_data.uuid.lock_bytes;
@@ -111,13 +114,16 @@ EncryptedNTAG215File EncodedDataToNfcData(const NTAG215File& encoded_data) {
nfc_data.user_memory.hmac_data = encoded_data.hmac_data;
nfc_data.user_memory.constant_value = encoded_data.constant_value;
nfc_data.user_memory.write_counter = encoded_data.write_counter;
+ nfc_data.user_memory.amiibo_version = encoded_data.amiibo_version;
nfc_data.user_memory.settings = encoded_data.settings;
nfc_data.user_memory.owner_mii = encoded_data.owner_mii;
- nfc_data.user_memory.title_id = encoded_data.title_id;
- nfc_data.user_memory.applicaton_write_counter = encoded_data.applicaton_write_counter;
+ nfc_data.user_memory.application_id = encoded_data.application_id;
+ nfc_data.user_memory.application_write_counter = encoded_data.application_write_counter;
nfc_data.user_memory.application_area_id = encoded_data.application_area_id;
+ nfc_data.user_memory.application_id_byte = encoded_data.application_id_byte;
nfc_data.user_memory.unknown = encoded_data.unknown;
nfc_data.user_memory.unknown2 = encoded_data.unknown2;
+ nfc_data.user_memory.application_area_crc = encoded_data.application_area_crc;
nfc_data.user_memory.application_area = encoded_data.application_area;
nfc_data.user_memory.hmac_tag = encoded_data.hmac_tag;
nfc_data.user_memory.model_info = encoded_data.model_info;
diff --git a/src/core/hle/service/nfp/nfp_device.cpp b/src/core/hle/service/nfp/nfp_device.cpp
index 1bdc42741..ddff90d6a 100644
--- a/src/core/hle/service/nfp/nfp_device.cpp
+++ b/src/core/hle/service/nfp/nfp_device.cpp
@@ -174,8 +174,8 @@ Result NfpDevice::StopDetection() {
if (device_state == DeviceState::TagFound || device_state == DeviceState::TagMounted) {
CloseAmiibo();
- return ResultSuccess;
}
+
if (device_state == DeviceState::SearchingForTag || device_state == DeviceState::TagRemoved) {
device_state = DeviceState::Initialized;
return ResultSuccess;
@@ -204,9 +204,7 @@ Result NfpDevice::Flush() {
const auto& current_date = GetAmiiboDate(current_posix_time);
if (settings.write_date.raw_date != current_date.raw_date) {
settings.write_date = current_date;
- settings.crc_counter++;
- // TODO: Find how to calculate the crc check
- // settings.crc = CalculateCRC(settings);
+ UpdateSettingsCrc();
}
tag_data.write_counter++;
@@ -318,7 +316,7 @@ Result NfpDevice::GetCommonInfo(CommonInfo& common_info) const {
common_info = {
.last_write_date = settings.write_date.GetWriteDate(),
.write_counter = tag_data.write_counter,
- .version = 0,
+ .version = tag_data.amiibo_version,
.application_area_size = sizeof(ApplicationArea),
};
return ResultSuccess;
@@ -370,13 +368,95 @@ Result NfpDevice::GetRegisterInfo(RegisterInfo& register_info) const {
.mii_char_info = manager.ConvertV3ToCharInfo(tag_data.owner_mii),
.creation_date = settings.init_date.GetWriteDate(),
.amiibo_name = GetAmiiboName(settings),
- .font_region = {},
+ .font_region = settings.settings.font_region,
+ };
+
+ return ResultSuccess;
+}
+
+Result NfpDevice::GetAdminInfo(AdminInfo& admin_info) const {
+ if (device_state != DeviceState::TagMounted) {
+ LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
+ if (device_state == DeviceState::TagRemoved) {
+ return TagRemoved;
+ }
+ return WrongDeviceState;
+ }
+
+ if (mount_target == MountTarget::None || mount_target == MountTarget::Rom) {
+ LOG_ERROR(Service_NFC, "Amiibo is read only", device_state);
+ return WrongDeviceState;
+ }
+
+ 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;
+ AppAreaVersion app_area_version = AppAreaVersion::NotSet;
+ if (tag_data.settings.settings.appdata_initialized != 0) {
+ application_id = tag_data.application_id;
+ app_area_version =
+ static_cast<AppAreaVersion>(application_id >> 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) << 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 NfpDevice::SetNicknameAndOwner(const AmiiboName& amiibo_name) {
+Result NfpDevice::DeleteRegisterInfo() {
+ if (device_state != DeviceState::TagMounted) {
+ LOG_ERROR(Service_NFC, "Wrong device state {}", device_state);
+ if (device_state == DeviceState::TagRemoved) {
+ return TagRemoved;
+ }
+ return WrongDeviceState;
+ }
+
+ if (mount_target == MountTarget::None || mount_target == MountTarget::Rom) {
+ LOG_ERROR(Service_NFC, "Amiibo is read only", device_state);
+ return WrongDeviceState;
+ }
+
+ if (tag_data.settings.settings.amiibo_initialized == 0) {
+ return RegistrationIsNotInitialized;
+ }
+
+ Common::TinyMT rng{};
+ 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.application_area_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 NfpDevice::SetRegisterInfoPrivate(const AmiiboName& amiibo_name) {
if (device_state != DeviceState::TagMounted) {
LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
if (device_state == DeviceState::TagRemoved) {
@@ -393,16 +473,23 @@ Result NfpDevice::SetNicknameAndOwner(const AmiiboName& amiibo_name) {
Service::Mii::MiiManager manager;
auto& settings = tag_data.settings;
- settings.init_date = GetAmiiboDate(current_posix_time);
- settings.write_date = GetAmiiboDate(current_posix_time);
- settings.crc_counter++;
- // TODO: Find how to calculate the crc check
- // settings.crc = CalculateCRC(settings);
+ if (tag_data.settings.settings.amiibo_initialized == 0) {
+ settings.init_date = GetAmiiboDate(current_posix_time);
+ settings.write_date.raw_date = 0;
+ }
SetAmiiboName(settings, amiibo_name);
tag_data.owner_mii = manager.ConvertCharInfoToV3(manager.BuildDefault(0));
+ tag_data.unknown = 0;
+ tag_data.unknown2[6] = 0;
+ settings.country_code_id = 0;
+ settings.settings.font_region.Assign(0);
settings.settings.amiibo_initialized.Assign(1);
+ // TODO: this is a mix of tag.file input
+ std::array<u8, 0x7e> unknown_input{};
+ tag_data.application_area_crc = CalculateCrc(unknown_input);
+
return Flush();
}
@@ -425,23 +512,17 @@ Result NfpDevice::RestoreAmiibo() {
return ResultSuccess;
}
-Result NfpDevice::DeleteAllData() {
- const auto result = DeleteApplicationArea();
- if (result.IsError()) {
- return result;
- }
+Result NfpDevice::Format() {
+ auto result1 = DeleteApplicationArea();
+ auto result2 = DeleteRegisterInfo();
- if (device_state != DeviceState::TagMounted) {
- LOG_ERROR(Service_NFP, "Wrong device state {}", device_state);
- if (device_state == DeviceState::TagRemoved) {
- return TagRemoved;
- }
- return WrongDeviceState;
+ if (result1.IsError()) {
+ return result1;
}
- Common::TinyMT rng{};
- rng.GenerateRandomBytes(&tag_data.owner_mii, sizeof(tag_data.owner_mii));
- tag_data.settings.settings.amiibo_initialized.Assign(0);
+ if (result2.IsError()) {
+ return result2;
+ }
return Flush();
}
@@ -569,7 +650,10 @@ Result NfpDevice::SetApplicationArea(std::span<const u8> data) {
rng.GenerateRandomBytes(tag_data.application_area.data() + data.size(),
sizeof(ApplicationArea) - data.size());
- tag_data.applicaton_write_counter++;
+ if (tag_data.application_write_counter != counter_limit) {
+ tag_data.application_write_counter++;
+ }
+
is_data_moddified = true;
return ResultSuccess;
@@ -617,14 +701,25 @@ Result NfpDevice::RecreateApplicationArea(u32 access_id, std::span<const u8> dat
rng.GenerateRandomBytes(tag_data.application_area.data() + data.size(),
sizeof(ApplicationArea) - data.size());
- // TODO: Investigate why the title id needs to be moddified
- tag_data.title_id = system.GetApplicationProcessProgramID();
- tag_data.title_id = tag_data.title_id | 0x30000000ULL;
+ if (tag_data.application_write_counter != counter_limit) {
+ tag_data.application_write_counter++;
+ }
+
+ const u64 application_id = system.GetApplicationProcessProgramID();
+
+ tag_data.application_id_byte =
+ static_cast<u8>(application_id >> application_id_version_offset & 0xf);
+ tag_data.application_id =
+ RemoveVersionByte(application_id) |
+ (static_cast<u64>(AppAreaVersion::NintendoSwitch) << application_id_version_offset);
tag_data.settings.settings.appdata_initialized.Assign(1);
tag_data.application_area_id = access_id;
- tag_data.applicaton_write_counter++;
tag_data.unknown = {};
+ // TODO: this is a mix of tag_data input
+ std::array<u8, 0x7e> unknown_input{};
+ tag_data.application_area_crc = CalculateCrc(unknown_input);
+
return Flush();
}
@@ -642,12 +737,20 @@ Result NfpDevice::DeleteApplicationArea() {
return WrongDeviceState;
}
+ if (tag_data.settings.settings.appdata_initialized == 0) {
+ return ApplicationAreaIsNotInitialized;
+ }
+
+ if (tag_data.application_write_counter != counter_limit) {
+ tag_data.application_write_counter++;
+ }
+
Common::TinyMT rng{};
rng.GenerateRandomBytes(tag_data.application_area.data(), sizeof(ApplicationArea));
- rng.GenerateRandomBytes(&tag_data.title_id, sizeof(u64));
+ 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.applicaton_write_counter++;
tag_data.unknown = {};
return Flush();
@@ -719,4 +822,45 @@ AmiiboDate NfpDevice::GetAmiiboDate(s64 posix_time) const {
return amiibo_date;
}
+u64 NfpDevice::RemoveVersionByte(u64 application_id) const {
+ return application_id & ~(0xfULL << application_id_version_offset);
+}
+
+void NfpDevice::UpdateSettingsCrc() {
+ auto& settings = tag_data.settings;
+
+ if (settings.crc_counter != counter_limit) {
+ settings.crc_counter++;
+ }
+
+ // TODO: this reads data from a global, find what it is
+ std::array<u8, 8> unknown_input{};
+ settings.crc = CalculateCrc(unknown_input);
+}
+
+u32 NfpDevice::CalculateCrc(std::span<const u8> data) {
+ constexpr u32 magic = 0xedb88320;
+ u32 crc = 0xffffffff;
+
+ if (data.size() == 0) {
+ return 0;
+ }
+
+ for (u8 input : data) {
+ u32 temp = (crc ^ input) >> 1;
+ if (((crc ^ input) & 1) != 0) {
+ temp = temp ^ magic;
+ }
+
+ for (std::size_t step = 0; step < 7; ++step) {
+ crc = temp >> 1;
+ if ((temp & 1) != 0) {
+ crc = temp >> 1 ^ magic;
+ }
+ }
+ }
+
+ return ~crc;
+}
+
} // namespace Service::NFP
diff --git a/src/core/hle/service/nfp/nfp_device.h b/src/core/hle/service/nfp/nfp_device.h
index b6a46f2ac..06386401d 100644
--- a/src/core/hle/service/nfp/nfp_device.h
+++ b/src/core/hle/service/nfp/nfp_device.h
@@ -47,10 +47,12 @@ public:
Result GetCommonInfo(CommonInfo& common_info) const;
Result GetModelInfo(ModelInfo& model_info) const;
Result GetRegisterInfo(RegisterInfo& register_info) const;
+ Result GetAdminInfo(AdminInfo& admin_info) const;
- Result SetNicknameAndOwner(const AmiiboName& amiibo_name);
+ Result DeleteRegisterInfo();
+ Result SetRegisterInfoPrivate(const AmiiboName& amiibo_name);
Result RestoreAmiibo();
- Result DeleteAllData();
+ Result Format();
Result OpenApplicationArea(u32 access_id);
Result GetApplicationAreaId(u32& application_area_id) const;
@@ -76,6 +78,9 @@ private:
AmiiboName GetAmiiboName(const AmiiboSettings& settings) const;
void SetAmiiboName(AmiiboSettings& settings, const AmiiboName& amiibo_name);
AmiiboDate GetAmiiboDate(s64 posix_time) const;
+ u64 RemoveVersionByte(u64 application_id) const;
+ void UpdateSettingsCrc();
+ u32 CalculateCrc(std::span<const u8>);
bool is_controller_set{};
int callback_key;
diff --git a/src/core/hle/service/nfp/nfp_types.h b/src/core/hle/service/nfp/nfp_types.h
index fc228c2b2..142343d6e 100644
--- a/src/core/hle/service/nfp/nfp_types.h
+++ b/src/core/hle/service/nfp/nfp_types.h
@@ -10,6 +10,8 @@
namespace Service::NFP {
static constexpr std::size_t amiibo_name_length = 0xA;
+static constexpr std::size_t application_id_version_offset = 0x1c;
+static constexpr std::size_t counter_limit = 0xffff;
enum class ServiceType : u32 {
User,
@@ -99,6 +101,14 @@ enum class TagProtocol : u32 {
All = 0xFFFFFFFFU,
};
+enum class AppAreaVersion : u8 {
+ Nintendo3DS = 0,
+ NintendoWiiU = 1,
+ Nintendo3DSv2 = 2,
+ NintendoSwitch = 3,
+ NotSet = 0xFF,
+};
+
enum class CabinetMode : u8 {
StartNicknameAndOwnerSettings,
StartGameDataEraser,
@@ -197,6 +207,7 @@ struct Settings {
union {
u8 raw{};
+ BitField<0, 4, u8> font_region;
BitField<4, 1, u8> amiibo_initialized;
BitField<5, 1, u8> appdata_initialized;
};
@@ -236,18 +247,20 @@ static_assert(sizeof(NTAG215Password) == 0x8, "NTAG215Password is an invalid siz
struct EncryptedAmiiboFile {
u8 constant_value; // Must be A5
u16_be write_counter; // Number of times the amiibo has been written?
- INSERT_PADDING_BYTES(0x1); // Unknown 1
+ u8 amiibo_version; // Amiibo file version
AmiiboSettings settings; // Encrypted amiibo settings
HashData hmac_tag; // Hash
AmiiboModelInfo model_info; // Encrypted amiibo model info
HashData keygen_salt; // Salt
HashData hmac_data; // Hash
Service::Mii::Ver3StoreData owner_mii; // Encrypted Mii data
- u64_be title_id; // Encrypted Game id
- u16_be applicaton_write_counter; // Encrypted Counter
+ u64_be application_id; // Encrypted Game id
+ u16_be application_write_counter; // Encrypted Counter
u32_be application_area_id; // Encrypted Game id
- std::array<u8, 0x2> unknown;
- std::array<u32, 0x8> unknown2;
+ u8 application_id_byte;
+ u8 unknown;
+ std::array<u32, 0x7> unknown2;
+ u32_be application_area_crc;
ApplicationArea application_area; // Encrypted Game data
};
static_assert(sizeof(EncryptedAmiiboFile) == 0x1F8, "AmiiboFile is an invalid size");
@@ -259,14 +272,16 @@ struct NTAG215File {
HashData hmac_data; // Hash
u8 constant_value; // Must be A5
u16_be write_counter; // Number of times the amiibo has been written?
- INSERT_PADDING_BYTES(0x1); // Unknown 1
+ u8 amiibo_version; // Amiibo file version
AmiiboSettings settings;
- Service::Mii::Ver3StoreData owner_mii; // Encrypted Mii data
- u64_be title_id;
- u16_be applicaton_write_counter; // Encrypted Counter
+ Service::Mii::Ver3StoreData owner_mii; // Mii data
+ u64_be application_id; // Game id
+ u16_be application_write_counter; // Counter
u32_be application_area_id;
- std::array<u8, 0x2> unknown;
- std::array<u32, 0x8> unknown2;
+ u8 application_id_byte;
+ u8 unknown;
+ std::array<u32, 0x7> unknown2;
+ u32_be application_area_crc;
ApplicationArea application_area; // Encrypted Game data
HashData hmac_tag; // Hash
UniqueSerialNumber uid; // Unique serial number
@@ -336,6 +351,18 @@ struct RegisterInfo {
};
static_assert(sizeof(RegisterInfo) == 0x100, "RegisterInfo is an invalid size");
+struct AdminInfo {
+ u64 application_id;
+ u32 application_area_id;
+ u16 crc_change_counter;
+ u8 flags;
+ PackedTagType tag_type;
+ AppAreaVersion app_area_version;
+ INSERT_PADDING_BYTES(0x7);
+ INSERT_PADDING_BYTES(0x28);
+};
+static_assert(sizeof(AdminInfo) == 0x40, "AdminInfo is an invalid size");
+
struct SectorKey {
MifareCmd command;
u8 unknown; // Usually 1
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 21:27:09 +0100