// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <cstring>
#include "common/logging/log.h"
#include "core/core.h"
#include "core/file_sys/content_archive.h"
#include "core/file_sys/control_metadata.h"
#include "core/file_sys/patch_manager.h"
#include "core/file_sys/romfs_factory.h"
#include "core/hle/kernel/k_page_table.h"
#include "core/hle/kernel/k_process.h"
#include "core/hle/service/filesystem/filesystem.h"
#include "core/loader/deconstructed_rom_directory.h"
#include "core/loader/nso.h"
namespace Loader {
AppLoader_DeconstructedRomDirectory::AppLoader_DeconstructedRomDirectory(FileSys::VirtualFile file_,
bool override_update_)
: AppLoader(std::move(file_)), override_update(override_update_), is_hbl(false) {
const auto file_dir = file->GetContainingDirectory();
// Title ID
const auto npdm = file_dir->GetFile("main.npdm");
if (npdm != nullptr) {
const auto res = metadata.Load(npdm);
if (res == ResultStatus::Success)
title_id = metadata.GetTitleID();
}
// Icon
FileSys::VirtualFile icon_file = nullptr;
for (const auto& language : FileSys::LANGUAGE_NAMES) {
icon_file = file_dir->GetFile("icon_" + std::string(language) + ".dat");
if (icon_file != nullptr) {
icon_data = icon_file->ReadAllBytes();
break;
}
}
if (icon_data.empty()) {
// Any png, jpeg, or bmp file
const auto& files = file_dir->GetFiles();
const auto icon_iter =
std::find_if(files.begin(), files.end(), [](const FileSys::VirtualFile& f) {
return f->GetExtension() == "png" || f->GetExtension() == "jpg" ||
f->GetExtension() == "bmp" || f->GetExtension() == "jpeg";
});
if (icon_iter != files.end())
icon_data = (*icon_iter)->ReadAllBytes();
}
// Metadata
FileSys::VirtualFile nacp_file = file_dir->GetFile("control.nacp");
if (nacp_file == nullptr) {
const auto& files = file_dir->GetFiles();
const auto nacp_iter =
std::find_if(files.begin(), files.end(),
[](const FileSys::VirtualFile& f) { return f->GetExtension() == "nacp"; });
if (nacp_iter != files.end())
nacp_file = *nacp_iter;
}
if (nacp_file != nullptr) {
FileSys::NACP nacp(nacp_file);
name = nacp.GetApplicationName();
}
}
AppLoader_DeconstructedRomDirectory::AppLoader_DeconstructedRomDirectory(
FileSys::VirtualDir directory, bool override_update_, bool is_hbl_)
: AppLoader(directory->GetFile("main")), dir(std::move(directory)),
override_update(override_update_), is_hbl(is_hbl_) {}
FileType AppLoader_DeconstructedRomDirectory::IdentifyType(const FileSys::VirtualFile& dir_file) {
if (FileSys::IsDirectoryExeFS(dir_file->GetContainingDirectory())) {
return FileType::DeconstructedRomDirectory;
}
return FileType::Error;
}
AppLoader_DeconstructedRomDirectory::LoadResult AppLoader_DeconstructedRomDirectory::Load(
Kernel::KProcess& process, Core::System& system) {
if (is_loaded) {
return {ResultStatus::ErrorAlreadyLoaded, {}};
}
if (dir == nullptr) {
if (file == nullptr) {
return {ResultStatus::ErrorNullFile, {}};
}
dir = file->GetContainingDirectory();
}
// Read meta to determine title ID
FileSys::VirtualFile npdm = dir->GetFile("main.npdm");
if (npdm == nullptr) {
return {ResultStatus::ErrorMissingNPDM, {}};
}
const ResultStatus result = metadata.Load(npdm);
if (result != ResultStatus::Success) {
return {result, {}};
}
if (override_update) {
const FileSys::PatchManager patch_manager(
metadata.GetTitleID(), system.GetFileSystemController(), system.GetContentProvider());
dir = patch_manager.PatchExeFS(dir);
}
// Reread in case PatchExeFS affected the main.npdm
npdm = dir->GetFile("main.npdm");
if (npdm == nullptr) {
return {ResultStatus::ErrorMissingNPDM, {}};
}
const ResultStatus result2 = metadata.Load(npdm);
if (result2 != ResultStatus::Success) {
return {result2, {}};
}
metadata.Print();
const auto static_modules = {"rtld", "main", "subsdk0", "subsdk1", "subsdk2",
"subsdk3", "subsdk4", "subsdk5", "subsdk6", "subsdk7",
"subsdk8", "subsdk9", "sdk"};
// Use the NSO module loader to figure out the code layout
std::size_t code_size{};
for (const auto& module : static_modules) {
const FileSys::VirtualFile module_file{dir->GetFile(module)};
if (!module_file) {
continue;
}
const bool should_pass_arguments = std::strcmp(module, "rtld") == 0;
const auto tentative_next_load_addr = AppLoader_NSO::LoadModule(
process, system, *module_file, code_size, should_pass_arguments, false);
if (!tentative_next_load_addr) {
return {ResultStatus::ErrorLoadingNSO, {}};
}
code_size = *tentative_next_load_addr;
}
// Setup the process code layout
if (process.LoadFromMetadata(metadata, code_size, is_hbl).IsError()) {
return {ResultStatus::ErrorUnableToParseKernelMetadata, {}};
}
// Load NSO modules
modules.clear();
const VAddr base_address{GetInteger(process.GetEntryPoint())};
VAddr next_load_addr{base_address};
const FileSys::PatchManager pm{metadata.GetTitleID(), system.GetFileSystemController(),
system.GetContentProvider()};
for (const auto& module : static_modules) {
const FileSys::VirtualFile module_file{dir->GetFile(module)};
if (!module_file) {
continue;
}
const VAddr load_addr{next_load_addr};
const bool should_pass_arguments = std::strcmp(module, "rtld") == 0;
const auto tentative_next_load_addr = AppLoader_NSO::LoadModule(
process, system, *module_file, load_addr, should_pass_arguments, true, pm);
if (!tentative_next_load_addr) {
return {ResultStatus::ErrorLoadingNSO, {}};
}
next_load_addr = *tentative_next_load_addr;
modules.insert_or_assign(load_addr, module);
LOG_DEBUG(Loader, "loaded module {} @ 0x{:X}", module, load_addr);
}
// Find the RomFS by searching for a ".romfs" file in this directory
const auto& files = dir->GetFiles();
const auto romfs_iter =
std::find_if(files.begin(), files.end(), [](const FileSys::VirtualFile& f) {
return f->GetName().find(".romfs") != std::string::npos;
});
// Register the RomFS if a ".romfs" file was found
if (romfs_iter != files.end() && *romfs_iter != nullptr) {
romfs = *romfs_iter;
system.GetFileSystemController().RegisterRomFS(std::make_unique<FileSys::RomFSFactory>(
*this, system.GetContentProvider(), system.GetFileSystemController()));
}
is_loaded = true;
return {ResultStatus::Success,
LoadParameters{metadata.GetMainThreadPriority(), metadata.GetMainThreadStackSize()}};
}
ResultStatus AppLoader_DeconstructedRomDirectory::ReadRomFS(FileSys::VirtualFile& out_dir) {
if (romfs == nullptr) {
return ResultStatus::ErrorNoRomFS;
}
out_dir = romfs;
return ResultStatus::Success;
}
ResultStatus AppLoader_DeconstructedRomDirectory::ReadIcon(std::vector<u8>& out_buffer) {
if (icon_data.empty()) {
return ResultStatus::ErrorNoIcon;
}
out_buffer = icon_data;
return ResultStatus::Success;
}
ResultStatus AppLoader_DeconstructedRomDirectory::ReadProgramId(u64& out_program_id) {
out_program_id = title_id;
return ResultStatus::Success;
}
ResultStatus AppLoader_DeconstructedRomDirectory::ReadTitle(std::string& out_title) {
if (name.empty()) {
return ResultStatus::ErrorNoControl;
}
out_title = name;
return ResultStatus::Success;
}
bool AppLoader_DeconstructedRomDirectory::IsRomFSUpdatable() const {
return false;
}
ResultStatus AppLoader_DeconstructedRomDirectory::ReadNSOModules(Modules& out_modules) {
if (!is_loaded) {
return ResultStatus::ErrorNotInitialized;
}
out_modules = this->modules;
return ResultStatus::Success;
}
} // namespace Loader