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// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <fmt/format.h>
#include "common/fs/path_util.h"
#include "core/file_sys/bis_factory.h"
#include "core/file_sys/registered_cache.h"
#include "core/file_sys/vfs/vfs.h"
namespace FileSys {
constexpr u64 NAND_USER_SIZE = 0x680000000; // 26624 MiB
constexpr u64 NAND_SYSTEM_SIZE = 0xA0000000; // 2560 MiB
constexpr u64 NAND_TOTAL_SIZE = 0x747C00000; // 29820 MiB
BISFactory::BISFactory(VirtualDir nand_root_, VirtualDir load_root_, VirtualDir dump_root_)
: nand_root(std::move(nand_root_)), load_root(std::move(load_root_)),
dump_root(std::move(dump_root_)),
sysnand_cache(std::make_unique<RegisteredCache>(
GetOrCreateDirectoryRelative(nand_root, "/system/Contents/registered"))),
usrnand_cache(std::make_unique<RegisteredCache>(
GetOrCreateDirectoryRelative(nand_root, "/user/Contents/registered"))),
sysnand_placeholder(std::make_unique<PlaceholderCache>(
GetOrCreateDirectoryRelative(nand_root, "/system/Contents/placehld"))),
usrnand_placeholder(std::make_unique<PlaceholderCache>(
GetOrCreateDirectoryRelative(nand_root, "/user/Contents/placehld"))) {}
BISFactory::~BISFactory() = default;
VirtualDir BISFactory::GetSystemNANDContentDirectory() const {
return GetOrCreateDirectoryRelative(nand_root, "/system/Contents");
}
VirtualDir BISFactory::GetUserNANDContentDirectory() const {
return GetOrCreateDirectoryRelative(nand_root, "/user/Contents");
}
RegisteredCache* BISFactory::GetSystemNANDContents() const {
return sysnand_cache.get();
}
RegisteredCache* BISFactory::GetUserNANDContents() const {
return usrnand_cache.get();
}
PlaceholderCache* BISFactory::GetSystemNANDPlaceholder() const {
return sysnand_placeholder.get();
}
PlaceholderCache* BISFactory::GetUserNANDPlaceholder() const {
return usrnand_placeholder.get();
}
VirtualDir BISFactory::GetModificationLoadRoot(u64 title_id) const {
// LayeredFS doesn't work on updates and title id-less homebrew
if (title_id == 0 || (title_id & 0xFFF) == 0x800)
return nullptr;
return GetOrCreateDirectoryRelative(load_root, fmt::format("/{:016X}", title_id));
}
VirtualDir BISFactory::GetModificationDumpRoot(u64 title_id) const {
if (title_id == 0)
return nullptr;
return GetOrCreateDirectoryRelative(dump_root, fmt::format("/{:016X}", title_id));
}
VirtualDir BISFactory::OpenPartition(BisPartitionId id) const {
switch (id) {
case BisPartitionId::CalibrationFile:
return GetOrCreateDirectoryRelative(nand_root, "/prodinfof");
case BisPartitionId::SafeMode:
return GetOrCreateDirectoryRelative(nand_root, "/safe");
case BisPartitionId::System:
return GetOrCreateDirectoryRelative(nand_root, "/system");
case BisPartitionId::User:
return GetOrCreateDirectoryRelative(nand_root, "/user");
default:
return nullptr;
}
}
VirtualFile BISFactory::OpenPartitionStorage(BisPartitionId id,
VirtualFilesystem file_system) const {
auto& keys = Core::Crypto::KeyManager::Instance();
Core::Crypto::PartitionDataManager pdm{file_system->OpenDirectory(
Common::FS::GetYuzuPathString(Common::FS::YuzuPath::NANDDir), OpenMode::Read)};
keys.PopulateFromPartitionData(pdm);
switch (id) {
case BisPartitionId::CalibrationBinary:
return pdm.GetDecryptedProdInfo();
case BisPartitionId::BootConfigAndPackage2Part1:
case BisPartitionId::BootConfigAndPackage2Part2:
case BisPartitionId::BootConfigAndPackage2Part3:
case BisPartitionId::BootConfigAndPackage2Part4:
case BisPartitionId::BootConfigAndPackage2Part5:
case BisPartitionId::BootConfigAndPackage2Part6: {
const auto new_id = static_cast<u8>(id) -
static_cast<u8>(BisPartitionId::BootConfigAndPackage2Part1) +
static_cast<u8>(Core::Crypto::Package2Type::NormalMain);
return pdm.GetPackage2Raw(static_cast<Core::Crypto::Package2Type>(new_id));
}
default:
return nullptr;
}
}
VirtualDir BISFactory::GetImageDirectory() const {
return GetOrCreateDirectoryRelative(nand_root, "/user/Album");
}
u64 BISFactory::GetSystemNANDFreeSpace() const {
const auto sys_dir = GetOrCreateDirectoryRelative(nand_root, "/system");
if (sys_dir == nullptr) {
return GetSystemNANDTotalSpace();
}
return GetSystemNANDTotalSpace() - sys_dir->GetSize();
}
u64 BISFactory::GetSystemNANDTotalSpace() const {
return NAND_SYSTEM_SIZE;
}
u64 BISFactory::GetUserNANDFreeSpace() const {
// For some reason games such as BioShock 1 checks whether this is exactly 0x680000000 bytes.
// Set the free space to be 1 MiB less than the total as a workaround to this issue.
return GetUserNANDTotalSpace() - 0x100000;
}
u64 BISFactory::GetUserNANDTotalSpace() const {
return NAND_USER_SIZE;
}
u64 BISFactory::GetFullNANDTotalSpace() const {
return NAND_TOTAL_SIZE;
}
VirtualDir BISFactory::GetBCATDirectory(u64 title_id) const {
return GetOrCreateDirectoryRelative(nand_root,
fmt::format("/system/save/bcat/{:016X}", title_id));
}
} // namespace FileSys
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