GodMode9/source/fatfs/crypto/nand.h

#pragma once

#include "common.h"

#define NAND_SECTOR_SIZE 0x200
#define SECTORS_PER_READ (BUFFER_MAX_SIZE / NAND_SECTOR_SIZE)

#define P_TWLN    (1<<0)
#define P_TWLP    (1<<1)
#define P_AGBSAVE (1<<2)
#define P_FIRM0   (1<<3)
#define P_FIRM1   (1<<4)
#define P_CTRNAND (1<<5)

// these three are not handled by the feature functions
// they have to be handled by the menu system
#define N_EMUNAND   (1<<29)
#define N_FORCENAND (1<<30)
#define N_NANDWRITE (1<<31)

// return values for the CheckEmuNAND() function
#define EMUNAND_NOT_READY 0 // must be zero
#define EMUNAND_READY     1
#define EMUNAND_GATEWAY   2
#define EMUNAND_REDNAND   3

// these offsets are used by Multi EmuNAND Creator
#define EMUNAND_MULTI_OFFSET_O3DS 0x00200000
#define EMUNAND_MULTI_OFFSET_N3DS 0x00400000

typedef struct {
    char name[16];
    u8  magic[8];
    u32 offset;
    u32 size;
    u32 keyslot;
    u32 mode;
} __attribute__((packed)) PartitionInfo;

PartitionInfo* GetPartitionInfo(u32 partition_id);
u32 GetNandCtr(u8* ctr, u32 offset);

u32 OutputFileNameSelector(char* filename, const char* basename, char* extension);
u32 InputFileNameSelector(char* filename, const char* basename, char* extension, u8* magic, u32 msize, u32 fsize);

u32 DecryptNandToMem(u8* buffer, u32 offset, u32 size, PartitionInfo* partition);
u32 DecryptNandToFile(const char* filename, u32 offset, u32 size, PartitionInfo* partition);
u32 EncryptMemToNand(u8* buffer, u32 offset, u32 size, PartitionInfo* partition);
u32 EncryptFileToNand(const char* filename, u32 offset, u32 size, PartitionInfo* partition);

// --> FEATURE FUNCTIONS <--
u32 CheckEmuNand(void);
u32 SetNand(bool set_emunand, bool force_emunand);

u32 CtrNandPadgen(u32 param);
u32 TwlNandPadgen(u32 param);
u32 Firm0Firm1Padgen(u32 param);

u32 DumpNand(u32 param);
u32 RestoreNand(u32 param);
u32 DecryptNandPartition(u32 param);
u32 InjectNandPartition(u32 param);