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// 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
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