mirror of
https://github.com/yuzu-emu/yuzu-mainline.git
synced 2024-10-26 15:15:45 +02:00
6636f3ff47
Neither of these functions require the use of shared ownership of the returned pointer. This makes it more difficult to create reference cycles with, and makes the interface more generic, as std::shared_ptr instances can be created from a std::unique_ptr, but the vice-versa isn't possible. This also alters relevant functions to take NCA arguments by const reference rather than a const reference to a std::shared_ptr. These functions don't alter the ownership of the memory used by the NCA instance, so we can make the interface more generic by not assuming anything about the type of smart pointer the NCA is contained within and make it the caller's responsibility to ensure the supplied NCA is valid.
387 lines
14 KiB
C++
387 lines
14 KiB
C++
// Copyright 2018 yuzu emulator team
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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 <algorithm>
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#include <array>
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#include <cstddef>
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#include <cstring>
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#include "common/hex_util.h"
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#include "common/logging/log.h"
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#include "core/file_sys/content_archive.h"
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#include "core/file_sys/control_metadata.h"
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#include "core/file_sys/ips_layer.h"
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#include "core/file_sys/patch_manager.h"
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#include "core/file_sys/registered_cache.h"
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#include "core/file_sys/romfs.h"
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#include "core/file_sys/vfs_layered.h"
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#include "core/file_sys/vfs_vector.h"
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#include "core/hle/service/filesystem/filesystem.h"
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#include "core/loader/loader.h"
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namespace FileSys {
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constexpr u64 SINGLE_BYTE_MODULUS = 0x100;
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constexpr u64 DLC_BASE_TITLE_ID_MASK = 0xFFFFFFFFFFFFE000;
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struct NSOBuildHeader {
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u32_le magic;
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INSERT_PADDING_BYTES(0x3C);
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std::array<u8, 0x20> build_id;
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INSERT_PADDING_BYTES(0xA0);
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};
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static_assert(sizeof(NSOBuildHeader) == 0x100, "NSOBuildHeader has incorrect size.");
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std::string FormatTitleVersion(u32 version, TitleVersionFormat format) {
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std::array<u8, sizeof(u32)> bytes{};
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bytes[0] = version % SINGLE_BYTE_MODULUS;
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for (std::size_t i = 1; i < bytes.size(); ++i) {
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version /= SINGLE_BYTE_MODULUS;
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bytes[i] = version % SINGLE_BYTE_MODULUS;
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}
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if (format == TitleVersionFormat::FourElements)
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return fmt::format("v{}.{}.{}.{}", bytes[3], bytes[2], bytes[1], bytes[0]);
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return fmt::format("v{}.{}.{}", bytes[3], bytes[2], bytes[1]);
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}
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PatchManager::PatchManager(u64 title_id) : title_id(title_id) {}
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PatchManager::~PatchManager() = default;
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VirtualDir PatchManager::PatchExeFS(VirtualDir exefs) const {
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LOG_INFO(Loader, "Patching ExeFS for title_id={:016X}", title_id);
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if (exefs == nullptr)
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return exefs;
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const auto installed = Service::FileSystem::GetUnionContents();
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// Game Updates
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const auto update_tid = GetUpdateTitleID(title_id);
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const auto update = installed->GetEntry(update_tid, ContentRecordType::Program);
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if (update != nullptr) {
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if (update->GetStatus() == Loader::ResultStatus::ErrorMissingBKTRBaseRomFS &&
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update->GetExeFS() != nullptr) {
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LOG_INFO(Loader, " ExeFS: Update ({}) applied successfully",
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FormatTitleVersion(installed->GetEntryVersion(update_tid).get_value_or(0)));
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exefs = update->GetExeFS();
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}
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}
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return exefs;
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}
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static std::vector<VirtualFile> CollectPatches(const std::vector<VirtualDir>& patch_dirs,
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const std::string& build_id) {
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std::vector<VirtualFile> out;
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out.reserve(patch_dirs.size());
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for (const auto& subdir : patch_dirs) {
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auto exefs_dir = subdir->GetSubdirectory("exefs");
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if (exefs_dir != nullptr) {
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for (const auto& file : exefs_dir->GetFiles()) {
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if (file->GetExtension() == "ips") {
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auto name = file->GetName();
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const auto p1 = name.substr(0, name.find('.'));
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const auto this_build_id = p1.substr(0, p1.find_last_not_of('0') + 1);
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if (build_id == this_build_id)
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out.push_back(file);
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} else if (file->GetExtension() == "pchtxt") {
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IPSwitchCompiler compiler{file};
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if (!compiler.IsValid())
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continue;
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auto this_build_id = Common::HexArrayToString(compiler.GetBuildID());
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this_build_id =
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this_build_id.substr(0, this_build_id.find_last_not_of('0') + 1);
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if (build_id == this_build_id)
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out.push_back(file);
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}
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}
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}
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}
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return out;
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}
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std::vector<u8> PatchManager::PatchNSO(const std::vector<u8>& nso) const {
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if (nso.size() < 0x100)
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return nso;
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NSOBuildHeader header;
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std::memcpy(&header, nso.data(), sizeof(NSOBuildHeader));
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if (header.magic != Common::MakeMagic('N', 'S', 'O', '0'))
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return nso;
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const auto build_id_raw = Common::HexArrayToString(header.build_id);
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const auto build_id = build_id_raw.substr(0, build_id_raw.find_last_not_of('0') + 1);
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LOG_INFO(Loader, "Patching NSO for build_id={}", build_id);
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const auto load_dir = Service::FileSystem::GetModificationLoadRoot(title_id);
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auto patch_dirs = load_dir->GetSubdirectories();
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std::sort(patch_dirs.begin(), patch_dirs.end(),
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[](const VirtualDir& l, const VirtualDir& r) { return l->GetName() < r->GetName(); });
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const auto patches = CollectPatches(patch_dirs, build_id);
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auto out = nso;
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for (const auto& patch_file : patches) {
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if (patch_file->GetExtension() == "ips") {
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LOG_INFO(Loader, " - Applying IPS patch from mod \"{}\"",
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patch_file->GetContainingDirectory()->GetParentDirectory()->GetName());
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const auto patched = PatchIPS(std::make_shared<VectorVfsFile>(out), patch_file);
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if (patched != nullptr)
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out = patched->ReadAllBytes();
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} else if (patch_file->GetExtension() == "pchtxt") {
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LOG_INFO(Loader, " - Applying IPSwitch patch from mod \"{}\"",
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patch_file->GetContainingDirectory()->GetParentDirectory()->GetName());
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const IPSwitchCompiler compiler{patch_file};
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const auto patched = compiler.Apply(std::make_shared<VectorVfsFile>(out));
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if (patched != nullptr)
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out = patched->ReadAllBytes();
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}
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}
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if (out.size() < 0x100)
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return nso;
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std::memcpy(out.data(), &header, sizeof(NSOBuildHeader));
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return out;
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}
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bool PatchManager::HasNSOPatch(const std::array<u8, 32>& build_id_) const {
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const auto build_id_raw = Common::HexArrayToString(build_id_);
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const auto build_id = build_id_raw.substr(0, build_id_raw.find_last_not_of('0') + 1);
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LOG_INFO(Loader, "Querying NSO patch existence for build_id={}", build_id);
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const auto load_dir = Service::FileSystem::GetModificationLoadRoot(title_id);
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auto patch_dirs = load_dir->GetSubdirectories();
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std::sort(patch_dirs.begin(), patch_dirs.end(),
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[](const VirtualDir& l, const VirtualDir& r) { return l->GetName() < r->GetName(); });
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return !CollectPatches(patch_dirs, build_id).empty();
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}
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static void ApplyLayeredFS(VirtualFile& romfs, u64 title_id, ContentRecordType type) {
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const auto load_dir = Service::FileSystem::GetModificationLoadRoot(title_id);
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if (type != ContentRecordType::Program || load_dir == nullptr || load_dir->GetSize() <= 0) {
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return;
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}
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auto extracted = ExtractRomFS(romfs);
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if (extracted == nullptr) {
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return;
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}
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auto patch_dirs = load_dir->GetSubdirectories();
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std::sort(patch_dirs.begin(), patch_dirs.end(),
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[](const VirtualDir& l, const VirtualDir& r) { return l->GetName() < r->GetName(); });
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std::vector<VirtualDir> layers;
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std::vector<VirtualDir> layers_ext;
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layers.reserve(patch_dirs.size() + 1);
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layers_ext.reserve(patch_dirs.size() + 1);
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for (const auto& subdir : patch_dirs) {
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auto romfs_dir = subdir->GetSubdirectory("romfs");
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if (romfs_dir != nullptr)
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layers.push_back(std::move(romfs_dir));
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auto ext_dir = subdir->GetSubdirectory("romfs_ext");
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if (ext_dir != nullptr)
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layers_ext.push_back(std::move(ext_dir));
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}
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layers.push_back(std::move(extracted));
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auto layered = LayeredVfsDirectory::MakeLayeredDirectory(std::move(layers));
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if (layered == nullptr) {
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return;
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}
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auto layered_ext = LayeredVfsDirectory::MakeLayeredDirectory(std::move(layers_ext));
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auto packed = CreateRomFS(std::move(layered), std::move(layered_ext));
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if (packed == nullptr) {
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return;
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}
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LOG_INFO(Loader, " RomFS: LayeredFS patches applied successfully");
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romfs = std::move(packed);
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}
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VirtualFile PatchManager::PatchRomFS(VirtualFile romfs, u64 ivfc_offset, ContentRecordType type,
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VirtualFile update_raw) const {
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LOG_INFO(Loader, "Patching RomFS for title_id={:016X}, type={:02X}", title_id,
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static_cast<u8>(type));
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if (romfs == nullptr)
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return romfs;
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const auto installed = Service::FileSystem::GetUnionContents();
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// Game Updates
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const auto update_tid = GetUpdateTitleID(title_id);
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const auto update = installed->GetEntryRaw(update_tid, type);
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if (update != nullptr) {
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const auto new_nca = std::make_shared<NCA>(update, romfs, ivfc_offset);
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if (new_nca->GetStatus() == Loader::ResultStatus::Success &&
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new_nca->GetRomFS() != nullptr) {
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LOG_INFO(Loader, " RomFS: Update ({}) applied successfully",
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FormatTitleVersion(installed->GetEntryVersion(update_tid).get_value_or(0)));
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romfs = new_nca->GetRomFS();
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}
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} else if (update_raw != nullptr) {
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const auto new_nca = std::make_shared<NCA>(update_raw, romfs, ivfc_offset);
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if (new_nca->GetStatus() == Loader::ResultStatus::Success &&
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new_nca->GetRomFS() != nullptr) {
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LOG_INFO(Loader, " RomFS: Update (PACKED) applied successfully");
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romfs = new_nca->GetRomFS();
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}
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}
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// LayeredFS
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ApplyLayeredFS(romfs, title_id, type);
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return romfs;
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}
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static void AppendCommaIfNotEmpty(std::string& to, const std::string& with) {
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if (to.empty())
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to += with;
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else
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to += ", " + with;
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}
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static bool IsDirValidAndNonEmpty(const VirtualDir& dir) {
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return dir != nullptr && (!dir->GetFiles().empty() || !dir->GetSubdirectories().empty());
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}
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std::map<std::string, std::string, std::less<>> PatchManager::GetPatchVersionNames(
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VirtualFile update_raw) const {
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std::map<std::string, std::string, std::less<>> out;
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const auto installed = Service::FileSystem::GetUnionContents();
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// Game Updates
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const auto update_tid = GetUpdateTitleID(title_id);
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PatchManager update{update_tid};
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auto [nacp, discard_icon_file] = update.GetControlMetadata();
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if (nacp != nullptr) {
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out.insert_or_assign("Update", nacp->GetVersionString());
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} else {
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if (installed->HasEntry(update_tid, ContentRecordType::Program)) {
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const auto meta_ver = installed->GetEntryVersion(update_tid);
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if (meta_ver == boost::none || meta_ver.get() == 0) {
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out.insert_or_assign("Update", "");
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} else {
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out.insert_or_assign(
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"Update",
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FormatTitleVersion(meta_ver.get(), TitleVersionFormat::ThreeElements));
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}
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} else if (update_raw != nullptr) {
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out.insert_or_assign("Update", "PACKED");
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}
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}
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// General Mods (LayeredFS and IPS)
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const auto mod_dir = Service::FileSystem::GetModificationLoadRoot(title_id);
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if (mod_dir != nullptr && mod_dir->GetSize() > 0) {
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for (const auto& mod : mod_dir->GetSubdirectories()) {
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std::string types;
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const auto exefs_dir = mod->GetSubdirectory("exefs");
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if (IsDirValidAndNonEmpty(exefs_dir)) {
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bool ips = false;
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bool ipswitch = false;
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for (const auto& file : exefs_dir->GetFiles()) {
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if (file->GetExtension() == "ips")
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ips = true;
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else if (file->GetExtension() == "pchtxt")
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ipswitch = true;
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}
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if (ips)
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AppendCommaIfNotEmpty(types, "IPS");
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if (ipswitch)
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AppendCommaIfNotEmpty(types, "IPSwitch");
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}
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if (IsDirValidAndNonEmpty(mod->GetSubdirectory("romfs")))
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AppendCommaIfNotEmpty(types, "LayeredFS");
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if (types.empty())
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continue;
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out.insert_or_assign(mod->GetName(), types);
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}
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}
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// DLC
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const auto dlc_entries = installed->ListEntriesFilter(TitleType::AOC, ContentRecordType::Data);
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std::vector<RegisteredCacheEntry> dlc_match;
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dlc_match.reserve(dlc_entries.size());
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std::copy_if(dlc_entries.begin(), dlc_entries.end(), std::back_inserter(dlc_match),
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[this, &installed](const RegisteredCacheEntry& entry) {
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return (entry.title_id & DLC_BASE_TITLE_ID_MASK) == title_id &&
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installed->GetEntry(entry)->GetStatus() ==
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Loader::ResultStatus::Success;
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});
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if (!dlc_match.empty()) {
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// Ensure sorted so DLC IDs show in order.
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std::sort(dlc_match.begin(), dlc_match.end());
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std::string list;
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for (size_t i = 0; i < dlc_match.size() - 1; ++i)
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list += fmt::format("{}, ", dlc_match[i].title_id & 0x7FF);
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list += fmt::format("{}", dlc_match.back().title_id & 0x7FF);
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out.insert_or_assign("DLC", std::move(list));
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}
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return out;
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}
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std::pair<std::unique_ptr<NACP>, VirtualFile> PatchManager::GetControlMetadata() const {
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const auto& installed{Service::FileSystem::GetUnionContents()};
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const auto base_control_nca = installed->GetEntry(title_id, ContentRecordType::Control);
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if (base_control_nca == nullptr)
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return {};
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return ParseControlNCA(*base_control_nca);
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}
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std::pair<std::unique_ptr<NACP>, VirtualFile> PatchManager::ParseControlNCA(const NCA& nca) const {
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const auto base_romfs = nca.GetRomFS();
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if (base_romfs == nullptr)
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return {};
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const auto romfs = PatchRomFS(base_romfs, nca.GetBaseIVFCOffset(), ContentRecordType::Control);
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if (romfs == nullptr)
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return {};
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const auto extracted = ExtractRomFS(romfs);
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if (extracted == nullptr)
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return {};
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auto nacp_file = extracted->GetFile("control.nacp");
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if (nacp_file == nullptr)
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nacp_file = extracted->GetFile("Control.nacp");
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auto nacp = nacp_file == nullptr ? nullptr : std::make_unique<NACP>(nacp_file);
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VirtualFile icon_file;
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for (const auto& language : FileSys::LANGUAGE_NAMES) {
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icon_file = extracted->GetFile("icon_" + std::string(language) + ".dat");
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if (icon_file != nullptr)
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break;
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}
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return {std::move(nacp), icon_file};
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}
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} // namespace FileSys
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