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NANDImporter: Add support for dumps that don't include keys

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This adds support for NAND images that only include the NAND
(i.e. without the OTP/SEEPROM dump appended at the end of the file).
This commit is contained in:
Léo Lam
2017-10-26 21:22:16 +02:00
parent 5d449c00e6
commit 96d7c39891
4 changed files with 56 additions and 20 deletions
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33
Source/Core/DiscIO/NANDImporter.cpp
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@ -27,11 +27,12 @@ NANDImporter::NANDImporter() = default;
NANDImporter::~NANDImporter() = default;
void NANDImporter::ImportNANDBin(const std::string& path_to_bin,
std::function<void()> update_callback)
std::function<void()> update_callback,
std::function<std::string()> get_otp_dump_path)
{
m_update_callback = std::move(update_callback);
if (!ReadNANDBin(path_to_bin))
if (!ReadNANDBin(path_to_bin, get_otp_dump_path))
return;
const std::string nand_root = File::GetUserPath(D_WIIROOT_IDX);
@ -45,20 +46,20 @@ void NANDImporter::ImportNANDBin(const std::string& path_to_bin,
ExtractCertificates(nand_root);
}
bool NANDImporter::ReadNANDBin(const std::string& path_to_bin)
bool NANDImporter::ReadNANDBin(const std::string& path_to_bin,
std::function<std::string()> get_otp_dump_path)
{
constexpr size_t NAND_TOTAL_BLOCKS = 0x40000;
constexpr size_t NAND_BLOCK_SIZE = 0x800;
constexpr size_t NAND_ECC_BLOCK_SIZE = 0x40;
constexpr size_t NAND_BIN_SIZE =
(NAND_BLOCK_SIZE + NAND_ECC_BLOCK_SIZE) * NAND_TOTAL_BLOCKS + NAND_KEYS_SIZE; // 0x21000400
(NAND_BLOCK_SIZE + NAND_ECC_BLOCK_SIZE) * NAND_TOTAL_BLOCKS; // 0x21000000
File::IOFile file(path_to_bin, "rb");
if (file.GetSize() != NAND_BIN_SIZE)
const u64 image_size = file.GetSize();
if (image_size != NAND_BIN_SIZE + NAND_KEYS_SIZE && image_size != NAND_BIN_SIZE)
{
PanicAlertT("This file does not look like a BootMii NAND backup. (0x%" PRIx64
" does not equal 0x%zx)",
file.GetSize(), NAND_BIN_SIZE);
PanicAlertT("This file does not look like a BootMii NAND backup.");
return false;
}
@ -76,8 +77,20 @@ bool NANDImporter::ReadNANDBin(const std::string& path_to_bin)
}
m_nand_keys.resize(NAND_KEYS_SIZE);
file.ReadBytes(m_nand_keys.data(), NAND_KEYS_SIZE);
return true;
// Read the OTP/SEEPROM dump.
// If it is not included in the NAND image, get a path to the dump and read key data from it.
if (image_size == NAND_BIN_SIZE)
{
const std::string otp_dump_path = get_otp_dump_path();
if (otp_dump_path.empty())
return false;
File::IOFile keys_file{otp_dump_path, "rb"};
return keys_file.ReadBytes(m_nand_keys.data(), NAND_KEYS_SIZE);
}
// Otherwise, just read the key data from the NAND image.
return file.ReadBytes(m_nand_keys.data(), NAND_KEYS_SIZE);
}
void NANDImporter::FindSuperblock()