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feat: Add support for encrypted NCSD

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Missing version 1 support and seeded crypto but that would be enough for now.
This commit is contained in:
Mary 2023-06-19 23:13:38 +02:00
parent 2e5bc0cb14
commit 86dd7f54f5
8 changed files with 305 additions and 138 deletions
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16
src/core/loader/ncsd.cpp
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@ -3,7 +3,7 @@
#include "loader/ncsd.hpp"
#include "memory.hpp"
std::optional<NCSD> Memory::loadNCSD(const std::filesystem::path& path) {
std::optional<NCSD> Memory::loadNCSD(Crypto::AESEngine &aesEngine, const std::filesystem::path& path) {
NCSD ncsd;
if (!ncsd.file.open(path, "rb"))
return std::nullopt;
@ -51,18 +51,12 @@ std::optional<NCSD> Memory::loadNCSD(const std::filesystem::path& path) {
ncch.fileOffset = partition.offset;
if (partition.length != 0) { // Initialize the NCCH of each partition
ncsd.file.seek(partition.offset);
NCCH::FSInfo ncchFsInfo;
// 0x200 bytes for the NCCH header and another 0x800 for the exheader
constexpr u64 headerSize = 0x200 + 0x800;
u8 ncchHeader[headerSize];
std::tie(success, bytes) = ncsd.file.readBytes(ncchHeader, headerSize);
if (!success || bytes != headerSize) {
printf("Failed to read NCCH header\n");
return std::nullopt;
}
ncchFsInfo.offset = partition.offset;
ncchFsInfo.size = partition.length;
if (!ncch.loadFromHeader(ncchHeader, ncsd.file)) {
if (!ncch.loadFromHeader(aesEngine, ncsd.file, ncchFsInfo)) {
printf("Invalid NCCH partition\n");
return std::nullopt;
}