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NRO Assets and NACP file format

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Cleanup

Review fixes
This commit is contained in:
Zach Hilman 2018-07-23 12:33:24 -04:00
parent ee26b9541e
commit ac0c52dd5f
5 changed files with 215 additions and 1 deletions
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79
src/core/loader/nro.cpp
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@ -10,6 +10,8 @@
#include "common/logging/log.h"
#include "common/swap.h"
#include "core/core.h"
#include "core/file_sys/control_metadata.h"
#include "core/file_sys/vfs_offset.h"
#include "core/gdbstub/gdbstub.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/resource_limit.h"
@ -49,7 +51,55 @@ struct ModHeader {
};
static_assert(sizeof(ModHeader) == 0x1c, "ModHeader has incorrect size.");
AppLoader_NRO::AppLoader_NRO(FileSys::VirtualFile file) : AppLoader(std::move(file)) {}
struct AssetSection {
u64_le offset;
u64_le size;
};
static_assert(sizeof(AssetSection) == 0x10, "AssetSection has incorrect size.");
struct AssetHeader {
u32_le magic;
u32_le format_version;
AssetSection icon;
AssetSection nacp;
AssetSection romfs;
};
static_assert(sizeof(AssetHeader) == 0x38, "AssetHeader has incorrect size.");
AppLoader_NRO::AppLoader_NRO(FileSys::VirtualFile file) : AppLoader(file) {
NroHeader nro_header{};
if (file->ReadObject(&nro_header) != sizeof(NroHeader))
return;
if (file->GetSize() >= nro_header.file_size + sizeof(AssetHeader)) {
u64 offset = nro_header.file_size;
AssetHeader asset_header{};
if (file->ReadObject(&asset_header, offset) != sizeof(AssetHeader))
return;
if (asset_header.format_version != 0)
LOG_WARNING(Loader,
"NRO Asset Header has format {}, currently supported format is 0. If "
"strange glitches occur with metadata, check NRO assets.",
asset_header.format_version);
if (asset_header.magic != Common::MakeMagic('A', 'S', 'E', 'T'))
return;
if (asset_header.nacp.size > 0) {
nacp = std::make_unique<FileSys::NACP>(std::make_shared<FileSys::OffsetVfsFile>(
file, asset_header.nacp.size, offset + asset_header.nacp.offset, "Control.nacp"));
}
if (asset_header.romfs.size > 0) {
romfs = std::make_shared<FileSys::OffsetVfsFile>(
file, asset_header.romfs.size, offset + asset_header.romfs.offset, "game.romfs");
}
if (asset_header.icon.size > 0) {
icon_data = file->ReadBytes(asset_header.icon.size, offset + asset_header.icon.offset);
}
}
}
FileType AppLoader_NRO::IdentifyType(const FileSys::VirtualFile& file) {
// Read NSO header
@ -136,4 +186,31 @@ ResultStatus AppLoader_NRO::Load(Kernel::SharedPtr<Kernel::Process>& process) {
return ResultStatus::Success;
}
ResultStatus AppLoader_NRO::ReadIcon(std::vector<u8>& buffer) {
if (icon_data.empty())
return ResultStatus::ErrorNotUsed;
buffer = icon_data;
return ResultStatus::Success;
}
ResultStatus AppLoader_NRO::ReadProgramId(u64& out_program_id) {
if (nacp == nullptr)
return ResultStatus::ErrorNotUsed;
out_program_id = nacp->GetTitleId();
return ResultStatus::Success;
}
ResultStatus AppLoader_NRO::ReadRomFS(FileSys::VirtualFile& dir) {
if (romfs == nullptr)
return ResultStatus::ErrorNotUsed;
dir = romfs;
return ResultStatus::Success;
}
ResultStatus AppLoader_NRO::ReadTitle(std::string& title) {
if (nacp == nullptr)
return ResultStatus::ErrorNotUsed;
title = nacp->GetApplicationName();
return ResultStatus::Success;
}
} // namespace Loader