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-rw-r--r--src/core/hle/service/nfp/nfp.cpp74
-rw-r--r--src/core/hle/service/nfp/nfp.h37
2 files changed, 69 insertions, 42 deletions
diff --git a/src/core/hle/service/nfp/nfp.cpp b/src/core/hle/service/nfp/nfp.cpp
index 459fa798f..63e257975 100644
--- a/src/core/hle/service/nfp/nfp.cpp
+++ b/src/core/hle/service/nfp/nfp.cpp
@@ -479,7 +479,7 @@ void Module::Interface::CreateUserInterface(Kernel::HLERequestContext& ctx) {
}
bool Module::Interface::LoadAmiibo(const std::vector<u8>& buffer) {
- if (buffer.size() < sizeof(AmiiboFile)) {
+ if (buffer.size() < sizeof(NTAG215File)) {
LOG_ERROR(Service_NFP, "Wrong file size");
return false;
}
@@ -490,12 +490,15 @@ bool Module::Interface::LoadAmiibo(const std::vector<u8>& buffer) {
}
LOG_INFO(Service_NFP, "Amiibo detected");
- std::memcpy(&amiibo, buffer.data(), sizeof(amiibo));
+ std::memcpy(&tag_data, buffer.data(), sizeof(tag_data));
if (!IsAmiiboValid()) {
return false;
}
+ // This value can't be dumped from a tag. Generate it
+ tag_data.PWD = GetTagPassword(tag_data.uuid);
+
device_state = DeviceState::TagFound;
activate_event->GetWritableEvent().Signal();
return true;
@@ -511,42 +514,43 @@ void Module::Interface::CloseAmiibo() {
}
bool Module::Interface::IsAmiiboValid() const {
- LOG_DEBUG(Service_NFP, "uuid_lock=0x{0:x}", amiibo.uuid_lock);
- LOG_DEBUG(Service_NFP, "compability_container=0x{0:x}", amiibo.compability_container);
- LOG_DEBUG(Service_NFP, "crypto_init=0x{0:x}", amiibo.crypto_init);
- LOG_DEBUG(Service_NFP, "write_count={}", amiibo.write_count);
-
- LOG_DEBUG(Service_NFP, "character_id=0x{0:x}", amiibo.model_info.character_id);
- LOG_DEBUG(Service_NFP, "character_variant={}", amiibo.model_info.character_variant);
- LOG_DEBUG(Service_NFP, "amiibo_type={}", amiibo.model_info.amiibo_type);
- LOG_DEBUG(Service_NFP, "model_number=0x{0:x}", amiibo.model_info.model_number);
- LOG_DEBUG(Service_NFP, "series={}", amiibo.model_info.series);
- LOG_DEBUG(Service_NFP, "fixed_value=0x{0:x}", amiibo.model_info.fixed);
-
- LOG_DEBUG(Service_NFP, "tag_dynamic_lock=0x{0:x}", amiibo.tag_dynamic_lock);
- LOG_DEBUG(Service_NFP, "tag_CFG0=0x{0:x}", amiibo.tag_CFG0);
- LOG_DEBUG(Service_NFP, "tag_CFG1=0x{0:x}", amiibo.tag_CFG1);
+ 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 (amiibo.uuid_lock != 0xE00F) {
+ if (tag_data.lock_bytes != 0xE00F) {
return false;
}
- if (amiibo.compability_container != 0xEEFF10F1UL) {
+ if (tag_data.compability_container != 0xEEFF10F1U) {
return false;
}
- if ((amiibo.crypto_init & 0xFF) != 0xA5) {
+ if ((amiibo_data.crypto_init & 0xFF) != 0xA5) {
return false;
}
- if (amiibo.model_info.fixed != 0x02) {
+ if (amiibo_data.model_info.fixed != 0x02) {
return false;
}
- if ((amiibo.tag_dynamic_lock & 0xFFFFFF) != 0x0F0001) {
+ if ((tag_data.dynamic_lock & 0xFFFFFF) != 0x0F0001) {
return false;
}
- if (amiibo.tag_CFG0 != 0x04000000UL) {
+ if (tag_data.CFG0 != 0x04000000U) {
return false;
}
- if (amiibo.tag_CFG1 != 0x5F) {
+ if (tag_data.CFG1 != 0x5F) {
return false;
}
return true;
@@ -629,12 +633,11 @@ ResultCode Module::Interface::Unmount() {
ResultCode Module::Interface::GetTagInfo(TagInfo& tag_info) const {
if (device_state == DeviceState::TagFound || device_state == DeviceState::TagMounted) {
- // Read this data from the amiibo save file
tag_info = {
- .uuid = amiibo.uuid,
- .uuid_length = static_cast<u8>(amiibo.uuid.size()),
+ .uuid = tag_data.uuid,
+ .uuid_length = static_cast<u8>(tag_data.uuid.size()),
.protocol = protocol,
- .tag_type = static_cast<u32>(amiibo.model_info.amiibo_type),
+ .tag_type = static_cast<u32>(tag_data.user_memory.model_info.amiibo_type),
};
return ResultSuccess;
}
@@ -654,7 +657,7 @@ ResultCode Module::Interface::GetCommonInfo(CommonInfo& common_info) const {
.last_write_year = 2022,
.last_write_month = 2,
.last_write_day = 7,
- .write_counter = amiibo.write_count,
+ .write_counter = tag_data.user_memory.write_count,
.version = 1,
.application_area_size = ApplicationAreaSize,
};
@@ -667,7 +670,7 @@ ResultCode Module::Interface::GetModelInfo(ModelInfo& model_info) const {
return ErrCodes::WrongDeviceState;
}
- model_info = amiibo.model_info;
+ model_info = tag_data.user_memory.model_info;
return ResultSuccess;
}
@@ -757,7 +760,7 @@ bool Module::Interface::AmiiboApplicationDataExist(u32 access_id) const {
return false;
}
-const std::vector<u8> Module::Interface::LoadAmiiboApplicationData(u32 access_id) const {
+std::vector<u8> Module::Interface::LoadAmiiboApplicationData(u32 access_id) const {
// TODO(german77): Read file
std::vector<u8> data(ApplicationAreaSize);
return data;
@@ -781,6 +784,15 @@ 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);
diff --git a/src/core/hle/service/nfp/nfp.h b/src/core/hle/service/nfp/nfp.h
index 633539dcc..bc3b1967f 100644
--- a/src/core/hle/service/nfp/nfp.h
+++ b/src/core/hle/service/nfp/nfp.h
@@ -7,6 +7,7 @@
#include <array>
#include <vector>
+#include "common/common_funcs.h"
#include "core/hle/service/kernel_helpers.h"
#include "core/hle/service/mii/mii_manager.h"
#include "core/hle/service/service.h"
@@ -85,8 +86,10 @@ enum class AmiiboSeries : u8 {
Diablo
};
+using TagUuid = std::array<u8, 10>;
+
struct TagInfo {
- std::array<u8, 10> uuid;
+ TagUuid uuid;
u8 uuid_length;
INSERT_PADDING_BYTES(0x15);
s32 protocol;
@@ -138,10 +141,7 @@ public:
const char* name);
~Interface() override;
- struct AmiiboFile {
- std::array<u8, 10> uuid;
- u16 uuid_lock; // Must be 0F E0
- u32 compability_container; // Must be F1 10 FF EE
+ struct EncryptedAmiiboFile {
u16 crypto_init; // Must be A5 XX
u16 write_count; // Number of times the amiibo has been written?
INSERT_PADDING_BYTES(0x20); // System crypts
@@ -150,11 +150,22 @@ public:
INSERT_PADDING_BYTES(0xC); // SHA256-HMAC
INSERT_PADDING_BYTES(0x114); // section 1 encrypted buffer
INSERT_PADDING_BYTES(0x54); // section 2 encrypted buffer
- u32 tag_dynamic_lock; // Must be 01 00 0F XX
- u32 tag_CFG0; // Must be 00 00 00 04
- u32 tag_CFG1; // Must be 50 00 00 00
};
- static_assert(sizeof(AmiiboFile) == 0x214, "AmiiboFile is an invalid size");
+ static_assert(sizeof(EncryptedAmiiboFile) == 0x1F8, "AmiiboFile is an invalid size");
+
+ struct NTAG215File {
+ TagUuid uuid; // Unique serial number
+ u16 lock_bytes; // Set defined pages as read only
+ u32 compability_container; // Defines available memory
+ EncryptedAmiiboFile user_memory; // Writable data
+ u32 dynamic_lock; // Dynamic lock
+ u32 CFG0; // Defines memory protected by password
+ u32 CFG1; // Defines number of verification attempts
+ u32 PWD; // Password to allow write access
+ u16 PACK; // Password acknowledge reply
+ u16 RFUI; // Reserved for future use
+ };
+ static_assert(sizeof(NTAG215File) == 0x21C, "NTAG215File is an invalid size");
void CreateUserInterface(Kernel::HLERequestContext& ctx);
bool LoadAmiibo(const std::vector<u8>& buffer);
@@ -191,17 +202,21 @@ public:
private:
/// Validates that the amiibo file is not corrupted
bool IsAmiiboValid() const;
+
bool AmiiboApplicationDataExist(u32 access_id) const;
- const std::vector<u8> LoadAmiiboApplicationData(u32 access_id) const;
+ std::vector<u8> LoadAmiiboApplicationData(u32 access_id) const;
void SaveAmiiboApplicationData(u32 access_id, const std::vector<u8>& data) const;
+ /// return password needed to allow write access to protected memory
+ u32 GetTagPassword(const TagUuid& uuid) const;
+
const Core::HID::NpadIdType npad_id;
DeviceState device_state{DeviceState::Unaviable};
KernelHelpers::ServiceContext service_context;
Kernel::KEvent* activate_event;
Kernel::KEvent* deactivate_event;
- AmiiboFile amiibo{};
+ NTAG215File tag_data{};
s32 protocol;
bool is_application_area_initialized{};
u32 application_area_id;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 16:59:20 +0100