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/**
******************************************************************************
* Xenia : Xbox 360 Emulator Research Project *
******************************************************************************
* Copyright 2014 Ben Vanik. All rights reserved. *
* Released under the BSD license - see LICENSE in the root for more details. *
******************************************************************************
*/
#ifndef XENIA_VFS_DEVICES_STFS_CONTAINER_DEVICE_H_
#define XENIA_VFS_DEVICES_STFS_CONTAINER_DEVICE_H_
#include <memory>
#include <string>
#include "xenia/base/mapped_memory.h"
#include "xenia/vfs/device.h"
namespace xe {
namespace vfs {
// http://www.free60.org/wiki/STFS
class StfsContainerEntry;
enum class StfsPackageType {
kCon,
kPirs,
kLive,
};
enum class StfsContentType : uint32_t {
kArcadeTitle = 0x000D0000,
kAvatarItem = 0x00009000,
kCacheFile = 0x00040000,
kCommunityGame = 0x02000000,
kGamesOnDemand = 0x00007000,
kGameDemo = 0x00080000,
kGamerPicture = 0x00020000,
kGameTitle = 0x000A0000,
kGameTrailer = 0x000C0000,
kGameVideo = 0x00400000,
kInstalledGame = 0x00004000,
kInstaller = 0x000B0000,
kIptvPauseBuffer = 0x00002000,
kLicenseStore = 0x000F0000,
kMarketplaceContent = 0x00000002,
kMovie = 0x00100000,
kMusicVideo = 0x00300000,
kPodcastVideo = 0x00500000,
kProfile = 0x00010000,
kPublisher = 0x00000003,
kSavedGame = 0x00000001,
kStorageDownload = 0x00050000,
kTheme = 0x00030000,
kTV = 0x00200000,
kVideo = 0x00090000,
kViralVideo = 0x00600000,
kXboxDownload = 0x00070000,
kXboxOriginalGame = 0x00005000,
kXboxSavedGame = 0x00060000,
kXbox360Title = 0x00001000,
kXboxTitle = 0x00005000,
kXNA = 0x000E0000,
};
enum class StfsPlatform : uint8_t {
kXbox360 = 0x02,
kPc = 0x04,
};
enum class StfsDescriptorType : uint32_t {
kStfs = 0,
kSvod = 1,
};
struct StfsVolumeDescriptor {
bool Read(const uint8_t* p);
uint8_t descriptor_size;
uint8_t version;
uint8_t flags;
uint16_t file_table_block_count;
uint32_t file_table_block_number;
uint8_t top_hash_table_hash[0x14];
uint32_t total_allocated_block_count;
uint32_t total_unallocated_block_count;
};
enum SvodDeviceFeatures {
kFeatureHasEnhancedGDFLayout = 0x40,
};
struct SvodVolumeDescriptor {
bool Read(const uint8_t* p);
uint8_t descriptor_size;
uint8_t block_cache_element_count;
uint8_t worker_thread_processor;
uint8_t worker_thread_priority;
uint8_t hash[0x14];
uint8_t device_features;
uint32_t data_block_count;
uint32_t data_block_offset;
// 0x5 padding bytes...
};
class StfsHeader {
public:
bool Read(const uint8_t* p);
uint8_t license_entries[0x100];
uint8_t header_hash[0x14];
uint32_t header_size;
StfsContentType content_type;
uint32_t metadata_version;
uint64_t content_size;
uint32_t media_id;
uint32_t version;
uint32_t base_version;
uint32_t title_id;
StfsPlatform platform;
uint8_t executable_type;
uint8_t disc_number;
uint8_t disc_in_set;
uint32_t save_game_id;
uint8_t console_id[0x5];
uint8_t profile_id[0x8];
union {
StfsVolumeDescriptor stfs_volume_descriptor;
SvodVolumeDescriptor svod_volume_descriptor;
};
uint32_t data_file_count;
uint64_t data_file_combined_size;
StfsDescriptorType descriptor_type;
uint8_t device_id[0x14];
wchar_t display_names[0x900 / 2];
wchar_t display_descs[0x900 / 2];
wchar_t publisher_name[0x80 / 2];
wchar_t title_name[0x80 / 2];
uint8_t transfer_flags;
uint32_t thumbnail_image_size;
uint32_t title_thumbnail_image_size;
uint8_t thumbnail_image[0x4000];
uint8_t title_thumbnail_image[0x4000];
};
class StfsContainerDevice : public Device {
public:
StfsContainerDevice(const std::string& mount_path,
const std::wstring& local_path);
~StfsContainerDevice() override;
bool Initialize() override;
void Dump(StringBuffer* string_buffer) override;
Entry* ResolvePath(std::string path) override;
uint32_t total_allocation_units() const override {
return uint32_t(mmap_->size() / sectors_per_allocation_unit() /
bytes_per_sector());
}
uint32_t available_allocation_units() const override { return 0; }
uint32_t sectors_per_allocation_unit() const override { return 1; }
uint32_t bytes_per_sector() const override { return 4 * 1024; }
private:
enum class Error {
kSuccess = 0,
kErrorOutOfMemory = -1,
kErrorReadError = -10,
kErrorFileMismatch = -30,
kErrorDamagedFile = -31,
};
struct BlockHash {
uint32_t next_block_index;
uint32_t info;
};
const uint32_t kSTFSHashSpacing = 170;
const uint32_t kSVODHashSpacing = 204;
Error ReadHeaderAndVerify(const uint8_t* map_ptr);
Error ReadAllEntriesEGDF(const uint8_t* map_ptr);
bool ReadEntryEGDF(const uint8_t* buffer, uint16_t entry_ordinal,
StfsContainerEntry* parent);
Error ReadAllEntriesSTFS(const uint8_t* map_ptr);
size_t BlockToOffsetSTFS(uint64_t block);
size_t BlockToOffsetEGDF(uint64_t block);
BlockHash GetBlockHash(const uint8_t* map_ptr, uint32_t block_index,
uint32_t table_offset);
std::wstring local_path_;
std::unique_ptr<MappedMemory> mmap_;
std::unique_ptr<Entry> root_entry_;
StfsPackageType package_type_;
StfsHeader header_;
uint32_t table_size_shift_;
};
} // namespace vfs
} // namespace xe
#endif // XENIA_VFS_DEVICES_STFS_CONTAINER_DEVICE_H_
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