Merge pull request #1511 from lioncash/content
content_archive: Minor reorganization changes
This commit is contained in:
bunnei
GitHub
commit
7f152f2273
|
|
@ -97,11 +97,288 @@ union NCASectionHeader {
|
|||
};
|
||||
static_assert(sizeof(NCASectionHeader) == 0x200, "NCASectionHeader has incorrect size.");
|
||||
|
||||
bool IsValidNCA(const NCAHeader& header) {
|
||||
static bool IsValidNCA(const NCAHeader& header) {
|
||||
// TODO(DarkLordZach): Add NCA2/NCA0 support.
|
||||
return header.magic == Common::MakeMagic('N', 'C', 'A', '3');
|
||||
}
|
||||
|
||||
NCA::NCA(VirtualFile file_, VirtualFile bktr_base_romfs_, u64 bktr_base_ivfc_offset)
|
||||
: file(std::move(file_)), bktr_base_romfs(std::move(bktr_base_romfs_)) {
|
||||
if (file == nullptr) {
|
||||
status = Loader::ResultStatus::ErrorNullFile;
|
||||
return;
|
||||
}
|
||||
|
||||
if (sizeof(NCAHeader) != file->ReadObject(&header)) {
|
||||
LOG_ERROR(Loader, "File reader errored out during header read.");
|
||||
status = Loader::ResultStatus::ErrorBadNCAHeader;
|
||||
return;
|
||||
}
|
||||
|
||||
if (!HandlePotentialHeaderDecryption()) {
|
||||
return;
|
||||
}
|
||||
|
||||
has_rights_id = std::any_of(header.rights_id.begin(), header.rights_id.end(),
|
||||
[](char c) { return c != '\0'; });
|
||||
|
||||
const std::vector<NCASectionHeader> sections = ReadSectionHeaders();
|
||||
is_update = std::any_of(sections.begin(), sections.end(), [](const NCASectionHeader& header) {
|
||||
return header.raw.header.crypto_type == NCASectionCryptoType::BKTR;
|
||||
});
|
||||
|
||||
if (!ReadSections(sections, bktr_base_ivfc_offset)) {
|
||||
return;
|
||||
}
|
||||
|
||||
status = Loader::ResultStatus::Success;
|
||||
}
|
||||
|
||||
NCA::~NCA() = default;
|
||||
|
||||
bool NCA::CheckSupportedNCA(const NCAHeader& nca_header) {
|
||||
if (nca_header.magic == Common::MakeMagic('N', 'C', 'A', '2')) {
|
||||
status = Loader::ResultStatus::ErrorNCA2;
|
||||
return false;
|
||||
}
|
||||
|
||||
if (nca_header.magic == Common::MakeMagic('N', 'C', 'A', '0')) {
|
||||
status = Loader::ResultStatus::ErrorNCA0;
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool NCA::HandlePotentialHeaderDecryption() {
|
||||
if (IsValidNCA(header)) {
|
||||
return true;
|
||||
}
|
||||
|
||||
if (!CheckSupportedNCA(header)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
NCAHeader dec_header{};
|
||||
Core::Crypto::AESCipher<Core::Crypto::Key256> cipher(
|
||||
keys.GetKey(Core::Crypto::S256KeyType::Header), Core::Crypto::Mode::XTS);
|
||||
cipher.XTSTranscode(&header, sizeof(NCAHeader), &dec_header, 0, 0x200,
|
||||
Core::Crypto::Op::Decrypt);
|
||||
if (IsValidNCA(dec_header)) {
|
||||
header = dec_header;
|
||||
encrypted = true;
|
||||
} else {
|
||||
if (!CheckSupportedNCA(dec_header)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (keys.HasKey(Core::Crypto::S256KeyType::Header)) {
|
||||
status = Loader::ResultStatus::ErrorIncorrectHeaderKey;
|
||||
} else {
|
||||
status = Loader::ResultStatus::ErrorMissingHeaderKey;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
std::vector<NCASectionHeader> NCA::ReadSectionHeaders() const {
|
||||
const std::ptrdiff_t number_sections =
|
||||
std::count_if(std::begin(header.section_tables), std::end(header.section_tables),
|
||||
[](NCASectionTableEntry entry) { return entry.media_offset > 0; });
|
||||
|
||||
std::vector<NCASectionHeader> sections(number_sections);
|
||||
const auto length_sections = SECTION_HEADER_SIZE * number_sections;
|
||||
|
||||
if (encrypted) {
|
||||
auto raw = file->ReadBytes(length_sections, SECTION_HEADER_OFFSET);
|
||||
Core::Crypto::AESCipher<Core::Crypto::Key256> cipher(
|
||||
keys.GetKey(Core::Crypto::S256KeyType::Header), Core::Crypto::Mode::XTS);
|
||||
cipher.XTSTranscode(raw.data(), length_sections, sections.data(), 2, SECTION_HEADER_SIZE,
|
||||
Core::Crypto::Op::Decrypt);
|
||||
} else {
|
||||
file->ReadBytes(sections.data(), length_sections, SECTION_HEADER_OFFSET);
|
||||
}
|
||||
|
||||
return sections;
|
||||
}
|
||||
|
||||
bool NCA::ReadSections(const std::vector<NCASectionHeader>& sections, u64 bktr_base_ivfc_offset) {
|
||||
for (std::size_t i = 0; i < sections.size(); ++i) {
|
||||
const auto& section = sections[i];
|
||||
|
||||
if (section.raw.header.filesystem_type == NCASectionFilesystemType::ROMFS) {
|
||||
if (!ReadRomFSSection(section, header.section_tables[i], bktr_base_ivfc_offset)) {
|
||||
return false;
|
||||
}
|
||||
} else if (section.raw.header.filesystem_type == NCASectionFilesystemType::PFS0) {
|
||||
if (!ReadPFS0Section(section, header.section_tables[i])) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool NCA::ReadRomFSSection(const NCASectionHeader& section, const NCASectionTableEntry& entry,
|
||||
u64 bktr_base_ivfc_offset) {
|
||||
const std::size_t base_offset = entry.media_offset * MEDIA_OFFSET_MULTIPLIER;
|
||||
ivfc_offset = section.romfs.ivfc.levels[IVFC_MAX_LEVEL - 1].offset;
|
||||
const std::size_t romfs_offset = base_offset + ivfc_offset;
|
||||
const std::size_t romfs_size = section.romfs.ivfc.levels[IVFC_MAX_LEVEL - 1].size;
|
||||
auto raw = std::make_shared<OffsetVfsFile>(file, romfs_size, romfs_offset);
|
||||
auto dec = Decrypt(section, raw, romfs_offset);
|
||||
|
||||
if (dec == nullptr) {
|
||||
if (status != Loader::ResultStatus::Success)
|
||||
return false;
|
||||
if (has_rights_id)
|
||||
status = Loader::ResultStatus::ErrorIncorrectTitlekeyOrTitlekek;
|
||||
else
|
||||
status = Loader::ResultStatus::ErrorIncorrectKeyAreaKey;
|
||||
return false;
|
||||
}
|
||||
|
||||
if (section.raw.header.crypto_type == NCASectionCryptoType::BKTR) {
|
||||
if (section.bktr.relocation.magic != Common::MakeMagic('B', 'K', 'T', 'R') ||
|
||||
section.bktr.subsection.magic != Common::MakeMagic('B', 'K', 'T', 'R')) {
|
||||
status = Loader::ResultStatus::ErrorBadBKTRHeader;
|
||||
return false;
|
||||
}
|
||||
|
||||
if (section.bktr.relocation.offset + section.bktr.relocation.size !=
|
||||
section.bktr.subsection.offset) {
|
||||
status = Loader::ResultStatus::ErrorBKTRSubsectionNotAfterRelocation;
|
||||
return false;
|
||||
}
|
||||
|
||||
const u64 size = MEDIA_OFFSET_MULTIPLIER * (entry.media_end_offset - entry.media_offset);
|
||||
if (section.bktr.subsection.offset + section.bktr.subsection.size != size) {
|
||||
status = Loader::ResultStatus::ErrorBKTRSubsectionNotAtEnd;
|
||||
return false;
|
||||
}
|
||||
|
||||
const u64 offset = section.romfs.ivfc.levels[IVFC_MAX_LEVEL - 1].offset;
|
||||
RelocationBlock relocation_block{};
|
||||
if (dec->ReadObject(&relocation_block, section.bktr.relocation.offset - offset) !=
|
||||
sizeof(RelocationBlock)) {
|
||||
status = Loader::ResultStatus::ErrorBadRelocationBlock;
|
||||
return false;
|
||||
}
|
||||
SubsectionBlock subsection_block{};
|
||||
if (dec->ReadObject(&subsection_block, section.bktr.subsection.offset - offset) !=
|
||||
sizeof(RelocationBlock)) {
|
||||
status = Loader::ResultStatus::ErrorBadSubsectionBlock;
|
||||
return false;
|
||||
}
|
||||
|
||||
std::vector<RelocationBucketRaw> relocation_buckets_raw(
|
||||
(section.bktr.relocation.size - sizeof(RelocationBlock)) / sizeof(RelocationBucketRaw));
|
||||
if (dec->ReadBytes(relocation_buckets_raw.data(),
|
||||
section.bktr.relocation.size - sizeof(RelocationBlock),
|
||||
section.bktr.relocation.offset + sizeof(RelocationBlock) - offset) !=
|
||||
section.bktr.relocation.size - sizeof(RelocationBlock)) {
|
||||
status = Loader::ResultStatus::ErrorBadRelocationBuckets;
|
||||
return false;
|
||||
}
|
||||
|
||||
std::vector<SubsectionBucketRaw> subsection_buckets_raw(
|
||||
(section.bktr.subsection.size - sizeof(SubsectionBlock)) / sizeof(SubsectionBucketRaw));
|
||||
if (dec->ReadBytes(subsection_buckets_raw.data(),
|
||||
section.bktr.subsection.size - sizeof(SubsectionBlock),
|
||||
section.bktr.subsection.offset + sizeof(SubsectionBlock) - offset) !=
|
||||
section.bktr.subsection.size - sizeof(SubsectionBlock)) {
|
||||
status = Loader::ResultStatus::ErrorBadSubsectionBuckets;
|
||||
return false;
|
||||
}
|
||||
|
||||
std::vector<RelocationBucket> relocation_buckets(relocation_buckets_raw.size());
|
||||
std::transform(relocation_buckets_raw.begin(), relocation_buckets_raw.end(),
|
||||
relocation_buckets.begin(), &ConvertRelocationBucketRaw);
|
||||
std::vector<SubsectionBucket> subsection_buckets(subsection_buckets_raw.size());
|
||||
std::transform(subsection_buckets_raw.begin(), subsection_buckets_raw.end(),
|
||||
subsection_buckets.begin(), &ConvertSubsectionBucketRaw);
|
||||
|
||||
u32 ctr_low;
|
||||
std::memcpy(&ctr_low, section.raw.section_ctr.data(), sizeof(ctr_low));
|
||||
subsection_buckets.back().entries.push_back({section.bktr.relocation.offset, {0}, ctr_low});
|
||||
subsection_buckets.back().entries.push_back({size, {0}, 0});
|
||||
|
||||
boost::optional<Core::Crypto::Key128> key = boost::none;
|
||||
if (encrypted) {
|
||||
if (has_rights_id) {
|
||||
status = Loader::ResultStatus::Success;
|
||||
key = GetTitlekey();
|
||||
if (key == boost::none) {
|
||||
status = Loader::ResultStatus::ErrorMissingTitlekey;
|
||||
return false;
|
||||
}
|
||||
} else {
|
||||
key = GetKeyAreaKey(NCASectionCryptoType::BKTR);
|
||||
if (key == boost::none) {
|
||||
status = Loader::ResultStatus::ErrorMissingKeyAreaKey;
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (bktr_base_romfs == nullptr) {
|
||||
status = Loader::ResultStatus::ErrorMissingBKTRBaseRomFS;
|
||||
return false;
|
||||
}
|
||||
|
||||
auto bktr = std::make_shared<BKTR>(
|
||||
bktr_base_romfs, std::make_shared<OffsetVfsFile>(file, romfs_size, base_offset),
|
||||
relocation_block, relocation_buckets, subsection_block, subsection_buckets, encrypted,
|
||||
encrypted ? key.get() : Core::Crypto::Key128{}, base_offset, bktr_base_ivfc_offset,
|
||||
section.raw.section_ctr);
|
||||
|
||||
// BKTR applies to entire IVFC, so make an offset version to level 6
|
||||
files.push_back(std::make_shared<OffsetVfsFile>(
|
||||
bktr, romfs_size, section.romfs.ivfc.levels[IVFC_MAX_LEVEL - 1].offset));
|
||||
} else {
|
||||
files.push_back(std::move(dec));
|
||||
}
|
||||
|
||||
romfs = files.back();
|
||||
return true;
|
||||
}
|
||||
|
||||
bool NCA::ReadPFS0Section(const NCASectionHeader& section, const NCASectionTableEntry& entry) {
|
||||
const u64 offset = (static_cast<u64>(entry.media_offset) * MEDIA_OFFSET_MULTIPLIER) +
|
||||
section.pfs0.pfs0_header_offset;
|
||||
const u64 size = MEDIA_OFFSET_MULTIPLIER * (entry.media_end_offset - entry.media_offset);
|
||||
|
||||
auto dec = Decrypt(section, std::make_shared<OffsetVfsFile>(file, size, offset), offset);
|
||||
if (dec != nullptr) {
|
||||
auto npfs = std::make_shared<PartitionFilesystem>(std::move(dec));
|
||||
|
||||
if (npfs->GetStatus() == Loader::ResultStatus::Success) {
|
||||
dirs.push_back(std::move(npfs));
|
||||
if (IsDirectoryExeFS(dirs.back()))
|
||||
exefs = dirs.back();
|
||||
} else {
|
||||
if (has_rights_id)
|
||||
status = Loader::ResultStatus::ErrorIncorrectTitlekeyOrTitlekek;
|
||||
else
|
||||
status = Loader::ResultStatus::ErrorIncorrectKeyAreaKey;
|
||||
return false;
|
||||
}
|
||||
} else {
|
||||
if (status != Loader::ResultStatus::Success)
|
||||
return false;
|
||||
if (has_rights_id)
|
||||
status = Loader::ResultStatus::ErrorIncorrectTitlekeyOrTitlekek;
|
||||
else
|
||||
status = Loader::ResultStatus::ErrorIncorrectKeyAreaKey;
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
u8 NCA::GetCryptoRevision() const {
|
||||
u8 master_key_id = header.crypto_type;
|
||||
if (header.crypto_type_2 > master_key_id)
|
||||
|
|
@ -167,7 +444,7 @@ boost::optional<Core::Crypto::Key128> NCA::GetTitlekey() {
|
|||
return titlekey;
|
||||
}
|
||||
|
||||
VirtualFile NCA::Decrypt(NCASectionHeader s_header, VirtualFile in, u64 starting_offset) {
|
||||
VirtualFile NCA::Decrypt(const NCASectionHeader& s_header, VirtualFile in, u64 starting_offset) {
|
||||
if (!encrypted)
|
||||
return in;
|
||||
|
||||
|
|
@ -215,256 +492,6 @@ VirtualFile NCA::Decrypt(NCASectionHeader s_header, VirtualFile in, u64 starting
|
|||
}
|
||||
}
|
||||
|
||||
NCA::NCA(VirtualFile file_, VirtualFile bktr_base_romfs_, u64 bktr_base_ivfc_offset)
|
||||
: file(std::move(file_)),
|
||||
bktr_base_romfs(bktr_base_romfs_ ? std::move(bktr_base_romfs_) : nullptr) {
|
||||
status = Loader::ResultStatus::Success;
|
||||
|
||||
if (file == nullptr) {
|
||||
status = Loader::ResultStatus::ErrorNullFile;
|
||||
return;
|
||||
}
|
||||
|
||||
if (sizeof(NCAHeader) != file->ReadObject(&header)) {
|
||||
LOG_ERROR(Loader, "File reader errored out during header read.");
|
||||
status = Loader::ResultStatus::ErrorBadNCAHeader;
|
||||
return;
|
||||
}
|
||||
|
||||
encrypted = false;
|
||||
|
||||
if (!IsValidNCA(header)) {
|
||||
if (header.magic == Common::MakeMagic('N', 'C', 'A', '2')) {
|
||||
status = Loader::ResultStatus::ErrorNCA2;
|
||||
return;
|
||||
}
|
||||
if (header.magic == Common::MakeMagic('N', 'C', 'A', '0')) {
|
||||
status = Loader::ResultStatus::ErrorNCA0;
|
||||
return;
|
||||
}
|
||||
|
||||
NCAHeader dec_header{};
|
||||
Core::Crypto::AESCipher<Core::Crypto::Key256> cipher(
|
||||
keys.GetKey(Core::Crypto::S256KeyType::Header), Core::Crypto::Mode::XTS);
|
||||
cipher.XTSTranscode(&header, sizeof(NCAHeader), &dec_header, 0, 0x200,
|
||||
Core::Crypto::Op::Decrypt);
|
||||
if (IsValidNCA(dec_header)) {
|
||||
header = dec_header;
|
||||
encrypted = true;
|
||||
} else {
|
||||
if (dec_header.magic == Common::MakeMagic('N', 'C', 'A', '2')) {
|
||||
status = Loader::ResultStatus::ErrorNCA2;
|
||||
return;
|
||||
}
|
||||
if (dec_header.magic == Common::MakeMagic('N', 'C', 'A', '0')) {
|
||||
status = Loader::ResultStatus::ErrorNCA0;
|
||||
return;
|
||||
}
|
||||
|
||||
if (!keys.HasKey(Core::Crypto::S256KeyType::Header))
|
||||
status = Loader::ResultStatus::ErrorMissingHeaderKey;
|
||||
else
|
||||
status = Loader::ResultStatus::ErrorIncorrectHeaderKey;
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
has_rights_id = std::find_if_not(header.rights_id.begin(), header.rights_id.end(),
|
||||
[](char c) { return c == '\0'; }) != header.rights_id.end();
|
||||
|
||||
const std::ptrdiff_t number_sections =
|
||||
std::count_if(std::begin(header.section_tables), std::end(header.section_tables),
|
||||
[](NCASectionTableEntry entry) { return entry.media_offset > 0; });
|
||||
|
||||
std::vector<NCASectionHeader> sections(number_sections);
|
||||
const auto length_sections = SECTION_HEADER_SIZE * number_sections;
|
||||
|
||||
if (encrypted) {
|
||||
auto raw = file->ReadBytes(length_sections, SECTION_HEADER_OFFSET);
|
||||
Core::Crypto::AESCipher<Core::Crypto::Key256> cipher(
|
||||
keys.GetKey(Core::Crypto::S256KeyType::Header), Core::Crypto::Mode::XTS);
|
||||
cipher.XTSTranscode(raw.data(), length_sections, sections.data(), 2, SECTION_HEADER_SIZE,
|
||||
Core::Crypto::Op::Decrypt);
|
||||
} else {
|
||||
file->ReadBytes(sections.data(), length_sections, SECTION_HEADER_OFFSET);
|
||||
}
|
||||
|
||||
is_update = std::find_if(sections.begin(), sections.end(), [](const NCASectionHeader& header) {
|
||||
return header.raw.header.crypto_type == NCASectionCryptoType::BKTR;
|
||||
}) != sections.end();
|
||||
ivfc_offset = 0;
|
||||
|
||||
for (std::ptrdiff_t i = 0; i < number_sections; ++i) {
|
||||
auto section = sections[i];
|
||||
|
||||
if (section.raw.header.filesystem_type == NCASectionFilesystemType::ROMFS) {
|
||||
const std::size_t base_offset =
|
||||
header.section_tables[i].media_offset * MEDIA_OFFSET_MULTIPLIER;
|
||||
ivfc_offset = section.romfs.ivfc.levels[IVFC_MAX_LEVEL - 1].offset;
|
||||
const std::size_t romfs_offset = base_offset + ivfc_offset;
|
||||
const std::size_t romfs_size = section.romfs.ivfc.levels[IVFC_MAX_LEVEL - 1].size;
|
||||
auto raw = std::make_shared<OffsetVfsFile>(file, romfs_size, romfs_offset);
|
||||
auto dec = Decrypt(section, raw, romfs_offset);
|
||||
|
||||
if (dec == nullptr) {
|
||||
if (status != Loader::ResultStatus::Success)
|
||||
return;
|
||||
if (has_rights_id)
|
||||
status = Loader::ResultStatus::ErrorIncorrectTitlekeyOrTitlekek;
|
||||
else
|
||||
status = Loader::ResultStatus::ErrorIncorrectKeyAreaKey;
|
||||
return;
|
||||
}
|
||||
|
||||
if (section.raw.header.crypto_type == NCASectionCryptoType::BKTR) {
|
||||
if (section.bktr.relocation.magic != Common::MakeMagic('B', 'K', 'T', 'R') ||
|
||||
section.bktr.subsection.magic != Common::MakeMagic('B', 'K', 'T', 'R')) {
|
||||
status = Loader::ResultStatus::ErrorBadBKTRHeader;
|
||||
return;
|
||||
}
|
||||
|
||||
if (section.bktr.relocation.offset + section.bktr.relocation.size !=
|
||||
section.bktr.subsection.offset) {
|
||||
status = Loader::ResultStatus::ErrorBKTRSubsectionNotAfterRelocation;
|
||||
return;
|
||||
}
|
||||
|
||||
const u64 size =
|
||||
MEDIA_OFFSET_MULTIPLIER * (header.section_tables[i].media_end_offset -
|
||||
header.section_tables[i].media_offset);
|
||||
if (section.bktr.subsection.offset + section.bktr.subsection.size != size) {
|
||||
status = Loader::ResultStatus::ErrorBKTRSubsectionNotAtEnd;
|
||||
return;
|
||||
}
|
||||
|
||||
const u64 offset = section.romfs.ivfc.levels[IVFC_MAX_LEVEL - 1].offset;
|
||||
RelocationBlock relocation_block{};
|
||||
if (dec->ReadObject(&relocation_block, section.bktr.relocation.offset - offset) !=
|
||||
sizeof(RelocationBlock)) {
|
||||
status = Loader::ResultStatus::ErrorBadRelocationBlock;
|
||||
return;
|
||||
}
|
||||
SubsectionBlock subsection_block{};
|
||||
if (dec->ReadObject(&subsection_block, section.bktr.subsection.offset - offset) !=
|
||||
sizeof(RelocationBlock)) {
|
||||
status = Loader::ResultStatus::ErrorBadSubsectionBlock;
|
||||
return;
|
||||
}
|
||||
|
||||
std::vector<RelocationBucketRaw> relocation_buckets_raw(
|
||||
(section.bktr.relocation.size - sizeof(RelocationBlock)) /
|
||||
sizeof(RelocationBucketRaw));
|
||||
if (dec->ReadBytes(relocation_buckets_raw.data(),
|
||||
section.bktr.relocation.size - sizeof(RelocationBlock),
|
||||
section.bktr.relocation.offset + sizeof(RelocationBlock) -
|
||||
offset) !=
|
||||
section.bktr.relocation.size - sizeof(RelocationBlock)) {
|
||||
status = Loader::ResultStatus::ErrorBadRelocationBuckets;
|
||||
return;
|
||||
}
|
||||
|
||||
std::vector<SubsectionBucketRaw> subsection_buckets_raw(
|
||||
(section.bktr.subsection.size - sizeof(SubsectionBlock)) /
|
||||
sizeof(SubsectionBucketRaw));
|
||||
if (dec->ReadBytes(subsection_buckets_raw.data(),
|
||||
section.bktr.subsection.size - sizeof(SubsectionBlock),
|
||||
section.bktr.subsection.offset + sizeof(SubsectionBlock) -
|
||||
offset) !=
|
||||
section.bktr.subsection.size - sizeof(SubsectionBlock)) {
|
||||
status = Loader::ResultStatus::ErrorBadSubsectionBuckets;
|
||||
return;
|
||||
}
|
||||
|
||||
std::vector<RelocationBucket> relocation_buckets(relocation_buckets_raw.size());
|
||||
std::transform(relocation_buckets_raw.begin(), relocation_buckets_raw.end(),
|
||||
relocation_buckets.begin(), &ConvertRelocationBucketRaw);
|
||||
std::vector<SubsectionBucket> subsection_buckets(subsection_buckets_raw.size());
|
||||
std::transform(subsection_buckets_raw.begin(), subsection_buckets_raw.end(),
|
||||
subsection_buckets.begin(), &ConvertSubsectionBucketRaw);
|
||||
|
||||
u32 ctr_low;
|
||||
std::memcpy(&ctr_low, section.raw.section_ctr.data(), sizeof(ctr_low));
|
||||
subsection_buckets.back().entries.push_back(
|
||||
{section.bktr.relocation.offset, {0}, ctr_low});
|
||||
subsection_buckets.back().entries.push_back({size, {0}, 0});
|
||||
|
||||
boost::optional<Core::Crypto::Key128> key = boost::none;
|
||||
if (encrypted) {
|
||||
if (has_rights_id) {
|
||||
status = Loader::ResultStatus::Success;
|
||||
key = GetTitlekey();
|
||||
if (key == boost::none) {
|
||||
status = Loader::ResultStatus::ErrorMissingTitlekey;
|
||||
return;
|
||||
}
|
||||
} else {
|
||||
key = GetKeyAreaKey(NCASectionCryptoType::BKTR);
|
||||
if (key == boost::none) {
|
||||
status = Loader::ResultStatus::ErrorMissingKeyAreaKey;
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (bktr_base_romfs == nullptr) {
|
||||
status = Loader::ResultStatus::ErrorMissingBKTRBaseRomFS;
|
||||
return;
|
||||
}
|
||||
|
||||
auto bktr = std::make_shared<BKTR>(
|
||||
bktr_base_romfs, std::make_shared<OffsetVfsFile>(file, romfs_size, base_offset),
|
||||
relocation_block, relocation_buckets, subsection_block, subsection_buckets,
|
||||
encrypted, encrypted ? key.get() : Core::Crypto::Key128{}, base_offset,
|
||||
bktr_base_ivfc_offset, section.raw.section_ctr);
|
||||
|
||||
// BKTR applies to entire IVFC, so make an offset version to level 6
|
||||
|
||||
files.push_back(std::make_shared<OffsetVfsFile>(
|
||||
bktr, romfs_size, section.romfs.ivfc.levels[IVFC_MAX_LEVEL - 1].offset));
|
||||
romfs = files.back();
|
||||
} else {
|
||||
files.push_back(std::move(dec));
|
||||
romfs = files.back();
|
||||
}
|
||||
} else if (section.raw.header.filesystem_type == NCASectionFilesystemType::PFS0) {
|
||||
u64 offset = (static_cast<u64>(header.section_tables[i].media_offset) *
|
||||
MEDIA_OFFSET_MULTIPLIER) +
|
||||
section.pfs0.pfs0_header_offset;
|
||||
u64 size = MEDIA_OFFSET_MULTIPLIER * (header.section_tables[i].media_end_offset -
|
||||
header.section_tables[i].media_offset);
|
||||
auto dec =
|
||||
Decrypt(section, std::make_shared<OffsetVfsFile>(file, size, offset), offset);
|
||||
if (dec != nullptr) {
|
||||
auto npfs = std::make_shared<PartitionFilesystem>(std::move(dec));
|
||||
|
||||
if (npfs->GetStatus() == Loader::ResultStatus::Success) {
|
||||
dirs.push_back(std::move(npfs));
|
||||
if (IsDirectoryExeFS(dirs.back()))
|
||||
exefs = dirs.back();
|
||||
} else {
|
||||
if (has_rights_id)
|
||||
status = Loader::ResultStatus::ErrorIncorrectTitlekeyOrTitlekek;
|
||||
else
|
||||
status = Loader::ResultStatus::ErrorIncorrectKeyAreaKey;
|
||||
return;
|
||||
}
|
||||
} else {
|
||||
if (status != Loader::ResultStatus::Success)
|
||||
return;
|
||||
if (has_rights_id)
|
||||
status = Loader::ResultStatus::ErrorIncorrectTitlekeyOrTitlekek;
|
||||
else
|
||||
status = Loader::ResultStatus::ErrorIncorrectKeyAreaKey;
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
status = Loader::ResultStatus::Success;
|
||||
}
|
||||
|
||||
NCA::~NCA() = default;
|
||||
|
||||
Loader::ResultStatus NCA::GetStatus() const {
|
||||
return status;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -73,8 +73,6 @@ inline bool IsDirectoryExeFS(const std::shared_ptr<VfsDirectory>& pfs) {
|
|||
return pfs->GetFile("main") != nullptr && pfs->GetFile("main.npdm") != nullptr;
|
||||
}
|
||||
|
||||
bool IsValidNCA(const NCAHeader& header);
|
||||
|
||||
// An implementation of VfsDirectory that represents a Nintendo Content Archive (NCA) conatiner.
|
||||
// After construction, use GetStatus to determine if the file is valid and ready to be used.
|
||||
class NCA : public ReadOnlyVfsDirectory {
|
||||
|
|
@ -106,10 +104,19 @@ protected:
|
|||
bool ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) override;
|
||||
|
||||
private:
|
||||
bool CheckSupportedNCA(const NCAHeader& header);
|
||||
bool HandlePotentialHeaderDecryption();
|
||||
|
||||
std::vector<NCASectionHeader> ReadSectionHeaders() const;
|
||||
bool ReadSections(const std::vector<NCASectionHeader>& sections, u64 bktr_base_ivfc_offset);
|
||||
bool ReadRomFSSection(const NCASectionHeader& section, const NCASectionTableEntry& entry,
|
||||
u64 bktr_base_ivfc_offset);
|
||||
bool ReadPFS0Section(const NCASectionHeader& section, const NCASectionTableEntry& entry);
|
||||
|
||||
u8 GetCryptoRevision() const;
|
||||
boost::optional<Core::Crypto::Key128> GetKeyAreaKey(NCASectionCryptoType type) const;
|
||||
boost::optional<Core::Crypto::Key128> GetTitlekey();
|
||||
VirtualFile Decrypt(NCASectionHeader header, VirtualFile in, u64 starting_offset);
|
||||
VirtualFile Decrypt(const NCASectionHeader& header, VirtualFile in, u64 starting_offset);
|
||||
|
||||
std::vector<VirtualDir> dirs;
|
||||
std::vector<VirtualFile> files;
|
||||
|
|
@ -118,15 +125,15 @@ private:
|
|||
VirtualDir exefs = nullptr;
|
||||
VirtualFile file;
|
||||
VirtualFile bktr_base_romfs;
|
||||
u64 ivfc_offset;
|
||||
u64 ivfc_offset = 0;
|
||||
|
||||
NCAHeader header{};
|
||||
bool has_rights_id{};
|
||||
|
||||
Loader::ResultStatus status{};
|
||||
|
||||
bool encrypted;
|
||||
bool is_update;
|
||||
bool encrypted = false;
|
||||
bool is_update = false;
|
||||
|
||||
Core::Crypto::KeyManager keys;
|
||||
};
|
||||
|
|
|
|||
Loading…
Reference in a new issue