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https://github.com/DarkStore-3DS/Project_CTR.git
synced 2026-07-07 08:49:47 +00:00
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jakcron
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#pragma once
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#include <tc/types.h>
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#include <array>
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#include <ntd/n3ds/ncch.h>
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namespace ntd { namespace n3ds {
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#pragma pack(push,8)
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/**
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* @struct NcsdCommonHeader
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* @brief NCSD header is used in both NAND storage and Gamecard Images
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*/
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struct NcsdCommonHeader
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{
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static const uint32_t kStructMagic = tc::bn::make_struct_magic_uint32("NCSD");
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static const size_t kPartitionNum = 8;
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enum PartitionFsType
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{
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PartitionFsType_None = 0,
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PartitionFsType_Normal = 1,
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PartitionFsType_FIRM = 3,
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PartitionFsType_AGBSave = 4,
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};
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enum PartitionCryptoType
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{
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PartitionCryptoType_None = 0x00,
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PartitionCryptoType_TWL = 0x01,
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PartitionCryptoType_CTR = 0x02,
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PartitionCryptoType_SNAKE = 0x03,
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};
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enum MediaPlatform : byte_t
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{
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MediaPlatform_CTR = 0,
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MediaPlatform_SNAKE = 1,
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};
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enum MediaType : byte_t
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{
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MediaType_InnerDevice = 0,
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MediaType_Card1 = 1,
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MediaType_Card2 = 2,
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MediaType_ExtendedDevice = 3,
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};
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enum FlagIndex
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{
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FlagIndex_Platform = 4,
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FlagIndex_Type = 5,
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FlagIndex_BlockSizeLog = 6,
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};
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struct NcsdFlags
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{
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tc::bn::pad<4> reserved;
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tc::bn::bitarray<1> media_platform;
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byte_t media_type;
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byte_t block_size_log; // this flag determines the block_size = 1 << (block_size_log + 9), alternatively this is always 0, and the blocksize is always 0x200
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tc::bn::bitarray<1> reserved_07;
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// raw byte access
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byte_t& operator[](size_t index) { return ((byte_t*)this)[index]; }
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const byte_t& operator[](size_t index) const { return ((const byte_t*)this)[index]; }
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const byte_t* data() const { return ((const byte_t*)this); }
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const size_t size() const { return sizeof(uint64_t); }
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};
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static_assert(sizeof(NcsdFlags) == 8, "NcsdFlags had incorrect size.");
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struct OffsetSize
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{
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tc::bn::le32<uint32_t> blk_offset;
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tc::bn::le32<uint32_t> blk_size;
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};
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static_assert(sizeof(OffsetSize) == 8, "OffsetSize had incorrect size.");
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struct GameCardExtendedHeader
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{
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// 0x90
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std::array<tc::bn::le64<uint64_t>, kPartitionNum> partition_id;
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// 0xD0
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tc::bn::pad<0x30> reserved;
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};
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struct NandExtendedHeader
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{
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// 0x90
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tc::bn::pad<0x70> reserved;
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};
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// 0x00
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tc::bn::le32<uint32_t> struct_magic; // NCSD
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tc::bn::le32<uint32_t> image_blk_size;
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tc::bn::le64<uint64_t> title_id;
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// 0x10
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std::array<byte_t, kPartitionNum> partition_fs_type;
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std::array<byte_t, kPartitionNum> partition_crypto_type;
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// 0x20
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std::array<OffsetSize, kPartitionNum> partition_offsetsize;
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// 0x60
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/*
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std::array<byte_t, 0x20> extended_header_hash; // unused
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// 0x80
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tc::bn::le32<uint32_t> additional_header_size; // unused
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tc::bn::le32<uint32_t> sector0_offset; // unused
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*/
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tc::bn::pad<0x28> reserved_0x60;
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// 0x88
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NcsdFlags flags;
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// 0x90
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union {
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GameCardExtendedHeader card_ext;
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NandExtendedHeader nand_ext;
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};
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};
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static_assert(sizeof(NcsdCommonHeader) == 0x100, "NcsdCommonHeader had incorrect size.");
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struct CciHeader
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{
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enum CardDevice : byte_t
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{
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CardDevice_Unspecified = 0,
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CardDevice_NorFlash = 1,
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CardDevice_None = 2,
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CardDevice_BT = 3,
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};
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enum PartitionIndex : byte_t
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{
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PartitionIndex_Application = 0,
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PartitionIndex_Manual = 1,
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PartitionIndex_DlpChild = 2,
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PartitionIndex_SnakeCup = 6,
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PartitionIndex_CtrCup = 7,
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};
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enum RomSize : uint32_t
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{
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RomSize_128MB = 0x40000,
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RomSize_256MB = 0x80000,
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RomSize_512MB = 0x100000,
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RomSize_1GB = 0x200000,
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RomSize_2GB = 0x400000,
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RomSize_4GB = 0x800000,
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};
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enum NcsdFlagIndex
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{
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NcsdFlagIndex_BackupWriteWaitTime = 0,
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NcsdFlagIndex_BackupSecurityVersion = 1,
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NcsdFlagIndex_CardInfo = 2,
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NcsdFlagIndex_CardDevice = 3,
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NcsdFlagIndex_MediaPlatform = 4,
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NcsdFlagIndex_MediaType = 5,
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NcsdFlagIndex_MediaBlockSize = 6,
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NcsdFlagIndex_CardDevice_Deprecated = 7,
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};
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enum CardType
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{
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CardType_S1 = 0,
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CardType_S2 = 1,
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};
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enum CryptoType
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{
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CryptoType_Secure0 = 0, // Secure initial data key (keyX bootrom, keyY initial data seed) (used in production ROMs)
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CryptoType_Secure1 = 1, // Secure initial data key (keyX bootrom, keyY initial data seed) (used in production ROMs)
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CryptoType_Secure2 = 2, // Secure initial data key (keyX bootrom, keyY initial data seed) (used in production ROMs)
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CryptoType_FixedKey = 3, // Zeros initial data key (used in non-HSM enviroments like development)
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};
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struct CardInfo
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{
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struct Flag
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{
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byte_t reserved : 5;
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byte_t card_type : 1; // see CardType
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byte_t crypto_type : 2; // see CryptoType
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};
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tc::bn::le32<uint32_t> writable_region; // offset in blocks
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tc::bn::pad<3> padding;
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Flag flag;
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tc::bn::pad<0xf8> reserved;
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};
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static_assert(sizeof(CardInfo) == 0x100, "CardInfo had incorrect size.");
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struct MasteringMetadata
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{
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tc::bn::le64<uint64_t> media_size_used;
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tc::bn::pad<0x8> padding0;
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tc::bn::le16<uint16_t> title_version;
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tc::bn::le16<uint16_t> card_revision;
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tc::bn::pad<0xc> padding1;
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tc::bn::le64<uint64_t> cver_title_id;
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tc::bn::le16<uint16_t> cver_title_version;
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tc::bn::pad<0x6> padding2;
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tc::bn::pad<0xd0> reserved;
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};
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static_assert(sizeof(MasteringMetadata) == 0x100, "MasteringMetadata had incorrect size.");
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struct InitialData
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{
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std::array<byte_t, 16> key_source;
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std::array<byte_t, 16> encrypted_title_key;
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std::array<byte_t, 16> mac;
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std::array<byte_t, 12> nonce;
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tc::bn::pad<4> padding;
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tc::bn::pad<0xc0> reserved;
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};
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static_assert(sizeof(InitialData) == 0x100, "InitialData had incorrect size.");
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struct CardDeviceInfo
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{
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tc::bn::pad<0x200> card_device_reserved_0;
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std::array<byte_t, 16> title_key;
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tc::bn::pad<0xf0> card_device_reserved_1;
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};
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static_assert(sizeof(InitialData) == 0x100, "InitialData had incorrect size.");
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public:
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// 0x0000 - 0x00ff: RSA2048-PKCS1-SHA2-256 over 0x0100-0x01ff
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std::array<byte_t, 0x100> signature;
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// 0x0100 - 0x01ff: NcsdCommonHeader
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NcsdCommonHeader ncsd_header;
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// 0x0200 - 0x02ff: CardInfo
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CardInfo card_info;
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// 0x0300 - 0x03ff: Mastering metadata
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MasteringMetadata mastering_info;
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// 0x0400 - 0x0fff: Reserved
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tc::bn::pad<0xc00> reserved_00;
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// 0x1000 - 0x10ff: Initial Data
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InitialData initial_data;
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// 0x1100 - 0x11ff: Partition0 NcchCommonHeader
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NcchCommonHeader ncch_header;
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// 0x1200 - 0x14ff: Contains decrypted titlekey for programming cards
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CardDeviceInfo card_device_info;
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// 0x1500 - 0x3fff: Reserved
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tc::bn::pad<0x2B00> reserved_01;
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};
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static_assert(sizeof(CciHeader) == 0x4000, "CciHeader had incorrect size.");
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#pragma pack(pop)
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}} // namespace ntd::n3ds
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