Files
Project_CTR/makerom/ncch.h
T
applestash 030b638c92 misc
2014-09-01 13:05:05 +10:00

134 lines
2.9 KiB
C

#pragma once
typedef enum
{
NCCH_MEMERROR = -1,
SAVE_DATA_TOO_LARGE = -2,
NCCH_SECTION_NOT_EXIST = -3,
UNABLE_TO_LOAD_NCCH_KEY = -4,
NCCH_EXPORT_BUFFER_TOO_SMALL = -5,
NO_ROMFS_IN_CFA = -6,
NO_EXHEADER_IN_CXI = -7,
NO_EXEFS_IN_CXI = -8,
// SigCheck Errors
CXI_CORRUPT = -9,
ACCESSDESC_SIG_BAD = -10,
NCCH_HDR_SIG_BAD = -11,
// HashCheck Errors
EXHDR_CORRUPT = -12,
LOGO_CORRUPT = -13,
EXEFS_CORRUPT = -14,
ROMFS_CORRUPT = -15,
// Others
NCCH_BAD_RSF_SET = -16,
DATA_POS_DNE = -17,
} ncch_errors;
typedef enum
{
ncch_exhdr = 1,
ncch_exefs,
ncch_romfs,
} ncch_section;
typedef enum
{
ncchflag_CONTENT_KEYX = 3,
ncchflag_CONTENT_PLATFORM = 4,
ncchflag_CONTENT_TYPE = 5,
ncchflag_CONTENT_BLOCK_SIZE = 6,
ncchflag_OTHER_FLAG = 7
} ncch_flags;
typedef enum
{
otherflag_Clear = 0,
otherflag_FixedCryptoKey = (1 << 0),
otherflag_NoMountRomFs = (1 << 1),
otherflag_NoCrypto = (1 << 2),
} ncch_otherflag_bitmask;
typedef enum
{
content_Data = 0x1,
content_Executable = 0x2,
content_SystemUpdate = 0x4,
content_Manual = 0x8,
content_Child = (0x4|0x8),
content_Trial = 0x10
} ncch_content_bitmask;
typedef struct
{
u16 formatVersion;
u32 exhdrOffset;
u32 exhdrSize;
u32 acexOffset;
u32 acexSize;
u64 logoOffset;
u64 logoSize;
u64 plainRegionOffset;
u64 plainRegionSize;
u64 exefsOffset;
u64 exefsSize;
u64 exefsHashDataSize;
u64 romfsOffset;
u64 romfsSize;
u64 romfsHashDataSize;
u8 titleId[8];
u8 programId[8];
} ncch_info;
typedef struct
{
u8 signature[0x100];
u8 magic[4];
u8 ncchSize[4];
u8 titleId[8];
u8 makerCode[2];
u8 formatVersion[2];
u8 padding0[4];
u8 programId[8];
u8 padding1[0x10];
u8 logoHash[0x20]; // SHA-256 over the entire logo region
u8 productCode[0x10];
u8 exhdrHash[0x20]; // SHA-256 over exhdrSize of the exhdr region
u8 exhdrSize[4];
u8 padding2[4];
u8 flags[8];
u8 plainRegionOffset[4];
u8 plainRegionSize[4];
u8 logoOffset[4];
u8 logoSize[4];
u8 exefsOffset[4];
u8 exefsSize[4];
u8 exefsHashSize[4];
u8 padding4[4];
u8 romfsOffset[4];
u8 romfsSize[4];
u8 romfsHashSize[4];
u8 padding5[4];
u8 exefsHash[0x20];
u8 romfsHash[0x20];
} ncch_hdr;
// NCCH Read Functions
int VerifyNcch(u8 *ncch, keys_struct *keys, bool CheckHash, bool SuppressOutput);
int ModifyNcchIds(u8 *ncch, u8 *titleId, u8 *programId, keys_struct *keys);
void ReadNcchHdr(ncch_hdr *hdr, FILE *fp);
u8* GetNcchHdrSig(ncch_hdr *hdr);
u8* GetNcchHdrData(ncch_hdr *hdr);
u32 GetNcchHdrSigLen(ncch_hdr *hdr);
u32 GetNcchHdrDataLen(ncch_hdr *hdr);
bool IsNcch(FILE *fp, u8 *buf);
bool IsCfa(ncch_hdr* hdr);
bool IsUpdateCfa(ncch_hdr* hdr);
u32 GetNcchBlockSize(ncch_hdr* hdr);
u64 GetNcchSize(ncch_hdr* hdr);
bool IsNcchEncrypted(ncch_hdr *hdr);
bool SetNcchKeys(keys_struct *keys, ncch_hdr *hdr);
int GetNcchInfo(ncch_info *ctx, ncch_hdr *header);
void GetNcchAesCounter(ncch_info *ctx, u8 counter[16], u8 type);
void CryptNcchRegion(u8 *buffer, u64 size, u64 src_pos, ncch_info *ctx, u8 key[16], u8 type);