mirror of
https://github.com/wheremyfoodat/Panda3DS.git
synced 2025-04-06 06:05:40 +12:00
89 lines
No EOL
2.6 KiB
C++
89 lines
No EOL
2.6 KiB
C++
#pragma once
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#include <array>
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#include <optional>
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#include <vector>
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#include "crypto/aes_engine.hpp"
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#include "helpers.hpp"
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#include "io_file.hpp"
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#include "services/region_codes.hpp"
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struct NCCH {
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struct EncryptionInfo {
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Crypto::AESKey normalKey;
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Crypto::AESKey initialCounter;
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};
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struct FSInfo { // Info on the ExeFS/RomFS
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u64 offset = 0;
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u64 size = 0;
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u64 hashRegionSize = 0;
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std::optional<EncryptionInfo> encryptionInfo;
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};
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// Descriptions for .text, .data and .rodata sections
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struct CodeSetInfo {
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u32 address = 0;
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u32 pageCount = 0;
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u32 size = 0;
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// Extract the code set info from the relevant header data
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void extract(const u8 *headerEntry) {
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address = *(u32 *)&headerEntry[0];
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pageCount = *(u32 *)&headerEntry[4];
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size = *(u32 *)&headerEntry[8];
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}
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};
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u64 partitionIndex = 0;
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u64 programID = 0;
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u64 fileOffset = 0;
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bool isNew3DS = false;
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bool initialized = false;
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bool compressCode = false; // Shows whether the .code file in the ExeFS is compressed
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bool mountRomFS = false;
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bool encrypted = false;
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bool fixedCryptoKey = false;
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bool seedCrypto = false;
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u8 secondaryKeySlot = 0;
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static constexpr u64 mediaUnit = 0x200;
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u64 size = 0; // Size of NCCH converted to bytes
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u64 saveDataSize = 0;
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u32 stackSize = 0;
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u32 bssSize = 0;
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u32 exheaderSize = 0;
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FSInfo exheaderInfo;
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FSInfo exeFS;
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FSInfo romFS;
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CodeSetInfo text, data, rodata;
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FSInfo partitionInfo;
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std::optional<Crypto::AESKey> primaryKey, secondaryKey;
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// Contents of the .code file in the ExeFS
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std::vector<u8> codeFile;
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// The cart region. Only the CXI's region matters to us. Necessary to get past region locking
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std::optional<Regions> region = std::nullopt;
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std::vector<u8> smdh;
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// Returns true on success, false on failure
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// Partition index/offset/size must have been set before this
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bool loadFromHeader(Crypto::AESEngine &aesEngine, IOFile &file, const FSInfo &info);
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bool hasExtendedHeader() { return exheaderSize != 0; }
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bool hasExeFS() { return exeFS.size != 0; }
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bool hasRomFS() { return romFS.size != 0; }
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bool hasCode() { return codeFile.size() != 0; }
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bool hasSaveData() { return saveDataSize != 0; }
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// Parse SMDH for region info and such. Returns false on failure, true on success
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bool parseSMDH(const std::vector<u8> &smdh);
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std::pair<bool, Crypto::AESKey> getPrimaryKey(Crypto::AESEngine &aesEngine, const Crypto::AESKey &keyY);
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std::pair<bool, Crypto::AESKey> getSecondaryKey(Crypto::AESEngine &aesEngine, const Crypto::AESKey &keyY);
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std::pair<bool, std::size_t> readFromFile(IOFile &file, const FSInfo &info, u8 *dst, std::size_t offset, std::size_t size);
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}; |