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65b55f9d60
* Add cart_id2 to gamecart.h This prepares changes to fix private header dumps. The name ID2 matches Lotus3 (see Switchbrew) since it's evident Lotus3 is just a continuation of the 3DS cart controller * Add Cart_GetID2() to protocol.h This prepares changes to fix private header dumps. The name ID2 matches Lotus3 (see Switchbrew) since it's evident Lotus3 is just a continuation of the 3DS cart controller. * gc protocol: Add support to get ID2 This renames the unknowna0_cmd to its proper name and the A0_Response to CartID2, matching Lotus3 terminology. * Store ID2 in private header at +0x44 The ID2 contains important information that in particular determines the cryptographic keys used. It is impossible to decrypt a dump of cart<->controller communications without knowing the ID2 or trying all possible keys. This behavior matches Gateway. I suppose that it was presumed that Gateway would always store zeroes there because regular cartridges on retail would always report zero and then everybody just copied this false assumption. * fix build (gamecart.c): memset->memcpy * fix build (protocol.c): Fix dupe definition of Cart_GetID()
45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
#pragma once
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#include "common.h"
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#include "card_spi.h"
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#define CART_NONE 0
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#define CART_CTR (1<<0)
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#define CART_NTR (1<<1)
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#define CART_TWL (1<<2)
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#define MODC_AREA_SIZE 0x4000
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#define PRIV_HDR_SIZE 0x50
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typedef enum CardSaveType {
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CARD_SAVE_NONE,
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CARD_SAVE_SPI,
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CARD_SAVE_CARD2,
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CARD_SAVE_RETAIL_NAND,
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} CardSaveType;
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typedef struct {
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u8 header[0x8000]; // NTR header + secure area / CTR header + private header
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u8 storage[0x8000]; // encrypted secure area + modcrypt area / unused
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u32 cart_type;
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u32 cart_id;
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u32 cart_id2; // crypto type, some special dev stuff, normally all-0 for retail
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u64 cart_size;
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u64 data_size;
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u32 save_size;
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CardSaveType save_type;
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CardSPIType spi_save_type; // Specific data for SPI save
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u32 arm9i_rom_offset; // TWL specific
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} PACKED_ALIGN(16) CartData;
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u32 GetCartName(char* name, CartData* cdata);
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u32 GetCartInfoString(char* info, size_t info_size, CartData* cdata);
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u32 SetSecureAreaEncryption(bool encrypted);
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u32 InitCartRead(CartData* cdata);
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u32 ReadCartSectors(void* buffer, u32 sector, u32 count, CartData* cdata, bool card2_blanking);
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u32 ReadCartBytes(void* buffer, u64 offset, u64 count, CartData* cdata, bool card2_blanking);
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u32 ReadCartPrivateHeader(void* buffer, u64 offset, u64 count, CartData* cdata);
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u32 ReadCartInfo(u8* buffer, u64 offset, u64 count, CartData* cdata);
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u32 ReadCartSave(u8* buffer, u64 offset, u64 count, CartData* cdata);
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u32 WriteCartSave(const u8* buffer, u64 offset, u64 count, CartData* cdata);
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