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https://github.com/yuzu-mirror/yuzu.git
synced 2024-09-09 14:29:08 +01:00
CFG: Implemented the GetConfigInfoBlk2 function.
Added a "config" file to the CFG process service (CFG:U), and added a few default blocks to it. Implemented GetSystemModel and GetModelNintendo2DS
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0de6a08d75
commit
fa3d72ab3e
5 changed files with 197 additions and 15 deletions
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@ -45,6 +45,11 @@ public:
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{
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}
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Path(const char* path):
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type(Char), string(path)
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{
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}
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Path(LowPathType type, u32 size, u32 pointer):
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type(type)
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{
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@ -16,8 +16,9 @@
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namespace FileSys {
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Archive_SystemSaveData::Archive_SystemSaveData(const std::string& mount_point)
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: DiskArchive(mount_point) {
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Archive_SystemSaveData::Archive_SystemSaveData(const std::string& mount_point, u64 save_id)
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: DiskArchive(Common::StringFromFormat("%s%08X/%08X/", mount_point.c_str(),
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static_cast<u32>(save_id & 0xFFFFFFFF), static_cast<u32>((save_id >> 31) & 0xFFFFFFFF))) {
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LOG_INFO(Service_FS, "Directory %s set as SystemSaveData.", this->mount_point.c_str());
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}
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@ -19,7 +19,7 @@ namespace FileSys {
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/// specifically nand:/data/<ID0>/sysdata/<SaveID-Low>/<SaveID-High>
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class Archive_SystemSaveData final : public DiskArchive {
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public:
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Archive_SystemSaveData(const std::string& mount_point);
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Archive_SystemSaveData(const std::string& mount_point, u64 save_id);
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/**
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* Initialize the archive.
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@ -2,7 +2,9 @@
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "common/file_util.h"
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#include "common/log.h"
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#include "core/file_sys/archive_systemsavedata.h"
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#include "core/hle/hle.h"
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#include "core/hle/service/cfg_u.h"
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@ -11,6 +13,19 @@
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namespace CFG_U {
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static std::unique_ptr<FileSys::Archive_SystemSaveData> cfg_system_save_data;
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static const u64 CFG_SAVE_ID = 0x00010017;
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static const u64 CONSOLE_UNIQUE_ID = 0xDEADC0DE;
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static const char CONSOLE_USERNAME[0x1C] = "THIS IS CITRAAAAAAAAAAAAAA";
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enum SystemModel {
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NINTENDO_3DS,
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NINTENDO_3DS_XL,
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NEW_NINTENDO_3DS,
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NINTENDO_2DS,
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NEW_NINTENDO_3DS_XL
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};
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// TODO(Link Mauve): use a constexpr once MSVC starts supporting it.
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#define C(code) ((code)[0] | ((code)[1] << 8))
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@ -99,13 +114,137 @@ static void GetCountryCodeID(Service::Interface* self) {
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cmd_buffer[2] = country_code_id;
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}
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/// Block header in the config savedata file
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struct SaveConfigBlockEntry {
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u32 block_id;
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u32 offset_or_data;
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u16 size;
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u16 flags;
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};
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/// The header of the config savedata file,
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/// contains information about the blocks in the file
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struct SaveFileConfig {
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u16 total_entries;
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u16 data_entries_offset;
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SaveConfigBlockEntry block_entries[1479];
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};
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/* Reads a block with the specified id and flag from the Config savegame file
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* and writes the output to output.
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* The input size must match exactly the size of the requested block
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* TODO(Subv): This should actually be in some file common to the CFG process
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* @param block_id The id of the block we want to read
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* @param size The size of the block we want to read
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* @param flag The requested block must have this flag set
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* @param output A pointer where we will write the read data
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* @returns ResultCode indicating the result of the operation, 0 on success
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*/
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ResultCode GetConfigInfoBlock(u32 block_id, u32 size, u32 flag, u8* output) {
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FileSys::Mode mode;
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mode.hex = 0;
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mode.read_flag = 1;
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FileSys::Path path("config");
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auto file = cfg_system_save_data->OpenFile(path, mode);
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_dbg_assert_msg_(Service_CFG, file != nullptr, "Could not open the CFG service config file");
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SaveFileConfig config;
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size_t read = file->Read(0, sizeof(SaveFileConfig), reinterpret_cast<u8*>(&config));
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if (read != sizeof(SaveFileConfig)) {
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LOG_CRITICAL(Service_CFG, "The config savefile is corrupted");
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return ResultCode(-1); // TODO(Subv): Find the correct error code
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}
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auto itr = std::find_if(std::begin(config.block_entries), std::end(config.block_entries),
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[&](SaveConfigBlockEntry const& entry) {
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return entry.block_id == block_id && entry.size == size && (entry.flags & flag);
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});
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if (itr == std::end(config.block_entries)) {
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LOG_TRACE(Service_CFG, "Config block %u with size %u and flags %u not found", block_id, size, flag);
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return ResultCode(-1); // TODO(Subv): Find the correct error code
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}
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// The data is located in the block header itself if the size is less than 4 bytes
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if (itr->size <= 4) {
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memcpy(output, &itr->offset_or_data, itr->size);
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} else {
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size_t data_read = file->Read(itr->offset_or_data, itr->size, output);
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if (data_read != itr->size) {
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LOG_CRITICAL(Service_CFG, "The config savefile is corrupted");
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return ResultCode(-1); // TODO(Subv): Find the correct error code
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}
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}
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return RESULT_SUCCESS;
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}
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/**
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* CFG_User::GetConfigInfoBlk2 service function
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* Inputs:
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* 1 : Size
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* 2 : Block ID
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* 3 : Descriptor for the output buffer
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* 4 : Output buffer pointer
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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*/
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static void GetConfigInfoBlk2(Service::Interface* self) {
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u32* cmd_buffer = Kernel::GetCommandBuffer();
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u32 size = cmd_buffer[1];
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u32 block_id = cmd_buffer[2];
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u8* data_pointer = Memory::GetPointer(cmd_buffer[4]);
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if (data_pointer == nullptr) {
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cmd_buffer[1] = -1; // TODO(Subv): Find the right error code
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return;
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}
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cmd_buffer[1] = GetConfigInfoBlock(block_id, size, 0x2, data_pointer).raw;
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}
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/**
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* CFG_User::GetSystemModel service function
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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* 2 : Model of the console
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*/
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static void GetSystemModel(Service::Interface* self) {
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u32* cmd_buffer = Kernel::GetCommandBuffer();
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u32 data;
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cmd_buffer[1] = GetConfigInfoBlock(0x000F0004, 4, 0x8,
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reinterpret_cast<u8*>(&data)).raw; // TODO(Subv): Find out the correct error codes
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cmd_buffer[2] = data & 0xFF;
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}
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/**
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* CFG_User::GetModelNintendo2DS service function
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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* 2 : 0 if the system is a Nintendo 2DS, 1 otherwise
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*/
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static void GetModelNintendo2DS(Service::Interface* self) {
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u32* cmd_buffer = Kernel::GetCommandBuffer();
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u32 data;
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cmd_buffer[1] = GetConfigInfoBlock(0x000F0004, 4, 0x8,
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reinterpret_cast<u8*>(&data)).raw; // TODO(Subv): Find out the correct error codes
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u8 model = data & 0xFF;
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if (model == NINTENDO_2DS)
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cmd_buffer[2] = 0;
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else
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cmd_buffer[2] = 1;
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}
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const Interface::FunctionInfo FunctionTable[] = {
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{0x00010082, nullptr, "GetConfigInfoBlk2"},
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{0x00010082, GetConfigInfoBlk2, "GetConfigInfoBlk2"},
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{0x00020000, nullptr, "SecureInfoGetRegion"},
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{0x00030000, nullptr, "GenHashConsoleUnique"},
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{0x00040000, nullptr, "GetRegionCanadaUSA"},
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{0x00050000, nullptr, "GetSystemModel"},
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{0x00060000, nullptr, "GetModelNintendo2DS"},
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{0x00050000, GetSystemModel, "GetSystemModel"},
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{0x00060000, GetModelNintendo2DS, "GetModelNintendo2DS"},
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{0x00070040, nullptr, "unknown"},
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{0x00080080, nullptr, "unknown"},
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{0x00090040, GetCountryCodeString, "GetCountryCodeString"},
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@ -116,6 +255,52 @@ const Interface::FunctionInfo FunctionTable[] = {
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Interface::Interface() {
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Register(FunctionTable, ARRAY_SIZE(FunctionTable));
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// TODO(Subv): In the future we should use the FS service to query this archive,
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// currently it is not possible because you can only have one open archive of the same type at any time
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std::string syssavedata_directory = FileUtil::GetUserPath(D_SYSSAVEDATA_IDX);
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cfg_system_save_data = std::make_unique<FileSys::Archive_SystemSaveData>(syssavedata_directory,
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CFG_SAVE_ID);
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if (!cfg_system_save_data->Initialize()) {
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LOG_CRITICAL(Service_CFG, "Could not initialize SystemSaveData archive for the CFG:U service");
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return;
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}
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// Try to open the file in read-only mode to check its existence
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FileSys::Mode mode;
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mode.hex = 0;
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mode.read_flag = 1;
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FileSys::Path path("config");
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auto file = cfg_system_save_data->OpenFile(path, mode);
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// Don't do anything if the file already exists
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if (file != nullptr)
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return;
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mode.create_flag = 1;
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mode.write_flag = 1;
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mode.read_flag = 0;
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// Re-open the file in write-create mode
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file = cfg_system_save_data->OpenFile(path, mode);
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// Setup the default config file data header
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SaveFileConfig config = { 3, 0, {} };
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u32 offset = sizeof(SaveFileConfig);
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// Console-unique ID
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config.block_entries[0] = { 0x00090001, offset, 0x8, 0xE };
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offset += 0x8;
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// Username
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config.block_entries[1] = { 0x000A0000, offset, 0x1C, 0xE };
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offset += 0x1C;
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// System Model (Nintendo 3DS XL)
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config.block_entries[2] = { 0x000F0004, NINTENDO_3DS_XL, 0x4, 0x8 };
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// Write the config file data header to the config file
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file->Write(0, sizeof(SaveFileConfig), 1, reinterpret_cast<u8*>(&config));
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// Write the data itself
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file->Write(config.block_entries[0].offset_or_data, 0x8, 1,
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reinterpret_cast<u8 const*>(&CONSOLE_UNIQUE_ID));
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file->Write(config.block_entries[1].offset_or_data, 0x1C, 1,
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reinterpret_cast<u8 const*>(CONSOLE_USERNAME));
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}
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Interface::~Interface() {
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@ -428,15 +428,6 @@ void ArchiveInit() {
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CreateArchive(std::move(sdmc_archive), ArchiveIdCode::SDMC);
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else
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LOG_ERROR(Service_FS, "Can't instantiate SDMC archive with path %s", sdmc_directory.c_str());
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std::string systemsavedata_directory = FileUtil::GetUserPath(D_SYSSAVEDATA_IDX);
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auto systemsavedata_archive = Common::make_unique<FileSys::Archive_SDMC>(systemsavedata_directory);
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if (systemsavedata_archive->Initialize()) {
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CreateArchive(std::move(systemsavedata_archive), ArchiveIdCode::SystemSaveData);
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} else {
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LOG_ERROR(Service_FS, "Can't instantiate SystemSaveData archive with path %s",
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systemsavedata_directory.c_str());
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}
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}
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/// Shutdown archives
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