citra-shitamoto-network/src/core/loader/ncch.h
Subv ea9ce0fba7 Filesystem/Archives: Implemented the SaveData archive
The savedata for each game is stored in /savedata/<ProgramID> for NCCH files. ELF files and 3DSX files use the folder 0 because they have no ID information

Got rid of the code duplication in File and Directory

Files that deal with the host machine's file system now live in DiskFile, similarly for directories and DiskDirectory and archives with DiskArchive.

FS_U: Use the correct error code when a file wasn't found
2014-12-17 19:21:38 -05:00

231 lines
6.0 KiB
C++

// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#pragma once
#include "common/common.h"
#include "common/file_util.h"
#include "core/loader/loader.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
/// NCCH header (Note: "NCCH" appears to be a publically unknown acronym)
struct NCCH_Header {
u8 signature[0x100];
char magic[4];
u32 content_size;
u8 partition_id[8];
u16 maker_code;
u16 version;
u8 reserved_0[4];
u8 program_id[8];
u8 temp_flag;
u8 reserved_1[0x2f];
u8 product_code[0x10];
u8 extended_header_hash[0x20];
u32 extended_header_size;
u8 reserved_2[4];
u8 flags[8];
u32 plain_region_offset;
u32 plain_region_size;
u8 reserved_3[8];
u32 exefs_offset;
u32 exefs_size;
u32 exefs_hash_region_size;
u8 reserved_4[4];
u32 romfs_offset;
u32 romfs_size;
u32 romfs_hash_region_size;
u8 reserved_5[4];
u8 exefs_super_block_hash[0x20];
u8 romfs_super_block_hash[0x20];
};
////////////////////////////////////////////////////////////////////////////////////////////////////
// ExeFS (executable file system) headers
struct ExeFs_SectionHeader {
char name[8];
u32 offset;
u32 size;
};
struct ExeFs_Header {
ExeFs_SectionHeader section[8];
u8 reserved[0x80];
u8 hashes[8][0x20];
};
////////////////////////////////////////////////////////////////////////////////////////////////////
// ExHeader (executable file system header) headers
struct ExHeader_SystemInfoFlags{
u8 reserved[5];
u8 flag;
u8 remaster_version[2];
};
struct ExHeader_CodeSegmentInfo{
u32 address;
u32 num_max_pages;
u32 code_size;
};
struct ExHeader_CodeSetInfo {
u8 name[8];
ExHeader_SystemInfoFlags flags;
ExHeader_CodeSegmentInfo text;
u8 stacksize[4];
ExHeader_CodeSegmentInfo ro;
u8 reserved[4];
ExHeader_CodeSegmentInfo data;
u8 bsssize[4];
};
struct ExHeader_DependencyList{
u8 program_id[0x30][8];
};
struct ExHeader_SystemInfo{
u32 save_data_size;
u8 reserved[4];
u8 jump_id[8];
u8 reserved_2[0x30];
};
struct ExHeader_StorageInfo{
u8 ext_save_data_id[8];
u8 system_save_data_id[8];
u8 reserved[8];
u8 access_info[7];
u8 other_attributes;
};
struct ExHeader_ARM11_SystemLocalCaps{
u8 program_id[8];
u8 flags[8];
u8 resource_limit_descriptor[0x10][2];
ExHeader_StorageInfo storage_info;
u8 service_access_control[0x20][8];
u8 reserved[0x1f];
u8 resource_limit_category;
};
struct ExHeader_ARM11_KernelCaps{
u8 descriptors[28][4];
u8 reserved[0x10];
};
struct ExHeader_ARM9_AccessControl{
u8 descriptors[15];
u8 descversion;
};
struct ExHeader_Header{
ExHeader_CodeSetInfo codeset_info;
ExHeader_DependencyList dependency_list;
ExHeader_SystemInfo system_info;
ExHeader_ARM11_SystemLocalCaps arm11_system_local_caps;
ExHeader_ARM11_KernelCaps arm11_kernel_caps;
ExHeader_ARM9_AccessControl arm9_access_control;
struct {
u8 signature[0x100];
u8 ncch_public_key_modulus[0x100];
ExHeader_ARM11_SystemLocalCaps arm11_system_local_caps;
ExHeader_ARM11_KernelCaps arm11_kernel_caps;
ExHeader_ARM9_AccessControl arm9_access_control;
} access_desc;
};
////////////////////////////////////////////////////////////////////////////////////////////////////
// Loader namespace
namespace Loader {
/// Loads an NCCH file (e.g. from a CCI, or the first NCCH in a CXI)
class AppLoader_NCCH final : public AppLoader {
public:
AppLoader_NCCH(const std::string& filename);
~AppLoader_NCCH() override;
/**
* Load the application
* @return ResultStatus result of function
*/
ResultStatus Load() override;
/**
* Get the code (typically .code section) of the application
* @param buffer Reference to buffer to store data
* @return ResultStatus result of function
*/
ResultStatus ReadCode(std::vector<u8>& buffer) const override;
/**
* Get the icon (typically icon section) of the application
* @param buffer Reference to buffer to store data
* @return ResultStatus result of function
*/
ResultStatus ReadIcon(std::vector<u8>& buffer) const override;
/**
* Get the banner (typically banner section) of the application
* @param buffer Reference to buffer to store data
* @return ResultStatus result of function
*/
ResultStatus ReadBanner(std::vector<u8>& buffer) const override;
/**
* Get the logo (typically logo section) of the application
* @param buffer Reference to buffer to store data
* @return ResultStatus result of function
*/
ResultStatus ReadLogo(std::vector<u8>& buffer) const override;
/**
* Get the RomFS of the application
* @param buffer Reference to buffer to store data
* @return ResultStatus result of function
*/
ResultStatus ReadRomFS(std::vector<u8>& buffer) const override;
/*
* Gets the program id from the NCCH header
* @return u64 Program id
*/
u64 GetProgramId() const;
private:
/**
* Reads an application ExeFS section of an NCCH file into AppLoader (e.g. .code, .logo, etc.)
* @param name Name of section to read out of NCCH file
* @param buffer Vector to read data into
* @return ResultStatus result of function
*/
ResultStatus LoadSectionExeFS(const char* name, std::vector<u8>& buffer) const;
/**
* Loads .code section into memory for booting
* @return ResultStatus result of function
*/
ResultStatus LoadExec() const;
std::string filename;
bool is_loaded;
bool is_compressed;
u32 entry_point;
u32 ncch_offset; // Offset to NCCH header, can be 0 or after NCSD header
u32 exefs_offset;
NCCH_Header ncch_header;
ExeFs_Header exefs_header;
ExHeader_Header exheader_header;
};
} // namespace Loader