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service/am: Clean up and optimize CIA installation. (#6718)

This commit is contained in:
Steveice10 2023-07-30 12:40:35 -07:00 committed by GitHub
parent 22c4eb86d7
commit 335fb78c5c
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 101 additions and 55 deletions
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6
src/core/file_sys/title_metadata.cpp
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@ -181,6 +181,12 @@ std::array<u8, 16> TitleMetadata::GetContentCTRByIndex(std::size_t index) const
return ctr;
}
bool TitleMetadata::HasEncryptedContent() const {
return std::any_of(tmd_chunks.begin(), tmd_chunks.end(), [](auto& chunk) {
return (static_cast<u16>(chunk.type) & FileSys::TMDContentTypeFlag::Encrypted) != 0;
});
}
void TitleMetadata::SetTitleID(u64 title_id) {
tmd_body.title_id = title_id;
}

1
src/core/file_sys/title_metadata.h
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@ -98,6 +98,7 @@ public:
u16 GetContentTypeByIndex(std::size_t index) const;
u64 GetContentSizeByIndex(std::size_t index) const;
std::array<u8, 16> GetContentCTRByIndex(std::size_t index) const;
bool HasEncryptedContent() const;
void SetTitleID(u64 title_id);
void SetTitleType(u32 type);

144
src/core/hle/service/am/am.cpp
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@ -96,22 +96,38 @@ ResultVal<std::size_t> CIAFile::Read(u64 offset, std::size_t length, u8* buffer)
}
ResultCode CIAFile::WriteTicket() {
container.LoadTicket(data, container.GetTicketOffset());
auto load_result = container.LoadTicket(data, container.GetTicketOffset());
if (load_result != Loader::ResultStatus::Success) {
LOG_ERROR(Service_AM, "Could not read ticket from CIA.");
// TODO: Correct result code.
return {ErrCodes::InvalidCIAHeader, ErrorModule::AM, ErrorSummary::InvalidArgument,
ErrorLevel::Permanent};
}
// TODO: Write out .tik files to nand?
install_state = CIAInstallState::TicketLoaded;
return RESULT_SUCCESS;
}
ResultCode CIAFile::WriteTitleMetadata() {
container.LoadTitleMetadata(data, container.GetTitleMetadataOffset());
auto load_result = container.LoadTitleMetadata(data, container.GetTitleMetadataOffset());
if (load_result != Loader::ResultStatus::Success) {
LOG_ERROR(Service_AM, "Could not read title metadata from CIA.");
// TODO: Correct result code.
return {ErrCodes::InvalidCIAHeader, ErrorModule::AM, ErrorSummary::InvalidArgument,
ErrorLevel::Permanent};
}
FileSys::TitleMetadata tmd = container.GetTitleMetadata();
tmd.Print();
// If a TMD already exists for this app (ie 00000000.tmd), the incoming TMD
// will be the same plus one, (ie 00000001.tmd), both will be kept until
// the install is finalized and old contents can be discarded.
if (FileUtil::Exists(GetTitleMetadataPath(media_type, tmd.GetTitleID())))
if (FileUtil::Exists(GetTitleMetadataPath(media_type, tmd.GetTitleID()))) {
is_update = true;
}
std::string tmd_path = GetTitleMetadataPath(media_type, tmd.GetTitleID(), is_update);
@ -121,28 +137,49 @@ ResultCode CIAFile::WriteTitleMetadata() {
FileUtil::CreateFullPath(tmd_folder);
// Save TMD so that we can start getting new .app paths
if (tmd.Save(tmd_path) != Loader::ResultStatus::Success)
return FileSys::ERROR_INSUFFICIENT_SPACE;
if (tmd.Save(tmd_path) != Loader::ResultStatus::Success) {
LOG_ERROR(Service_AM, "Failed to install title metadata file from CIA.");
// TODO: Correct result code.
return FileSys::ERROR_FILE_NOT_FOUND;
}
// Create any other .app folders which may not exist yet
std::string app_folder;
Common::SplitPath(GetTitleContentPath(media_type, tmd.GetTitleID(),
FileSys::TMDContentIndex::Main, is_update),
&app_folder, nullptr, nullptr);
auto main_content_path = GetTitleContentPath(media_type, tmd.GetTitleID(),
FileSys::TMDContentIndex::Main, is_update);
Common::SplitPath(main_content_path, &app_folder, nullptr, nullptr);
FileUtil::CreateFullPath(app_folder);
auto content_count = container.GetTitleMetadata().GetContentCount();
content_written.resize(content_count);
if (auto title_key = container.GetTicket().GetTitleKey()) {
decryption_state->content.resize(content_count);
for (std::size_t i = 0; i < content_count; ++i) {
auto ctr = tmd.GetContentCTRByIndex(i);
decryption_state->content[i].SetKeyWithIV(title_key->data(), title_key->size(),
ctr.data());
content_files.clear();
for (std::size_t i = 0; i < content_count; i++) {
auto path = GetTitleContentPath(media_type, tmd.GetTitleID(), i, is_update);
auto& file = content_files.emplace_back(path, "wb");
if (!file.IsOpen()) {
LOG_ERROR(Service_AM, "Could not open output file '{}' for content {}.", path, i);
// TODO: Correct error code.
return FileSys::ERROR_FILE_NOT_FOUND;
}
}
if (container.GetTitleMetadata().HasEncryptedContent()) {
if (auto title_key = container.GetTicket().GetTitleKey()) {
decryption_state->content.resize(content_count);
for (std::size_t i = 0; i < content_count; ++i) {
auto ctr = tmd.GetContentCTRByIndex(i);
decryption_state->content[i].SetKeyWithIV(title_key->data(), title_key->size(),
ctr.data());
}
} else {
LOG_ERROR(Service_AM, "Could not read title key from ticket for encrypted CIA.");
// TODO: Correct error code.
return FileSys::ERROR_FILE_NOT_FOUND;
}
} else {
LOG_ERROR(Service_AM, "Can't get title key from ticket");
LOG_INFO(Service_AM,
"Title has no encrypted content, skipping initializing decryption state.");
}
install_state = CIAInstallState::TMDLoaded;
@ -155,7 +192,7 @@ ResultVal<std::size_t> CIAFile::WriteContentData(u64 offset, std::size_t length,
// has been written since we might get a written buffer which contains multiple .app
// contents or only part of a larger .app's contents.
const u64 offset_max = offset + length;
for (std::size_t i = 0; i < container.GetTitleMetadata().GetContentCount(); i++) {
for (std::size_t i = 0; i < content_written.size(); i++) {
if (content_written[i] < container.GetContentSize(i)) {
// The size, minimum unwritten offset, and maximum unwritten offset of this content
const u64 size = container.GetContentSize(i);
@ -174,22 +211,12 @@ ResultVal<std::size_t> CIAFile::WriteContentData(u64 offset, std::size_t length,
// Since the incoming TMD has already been written, we can use GetTitleContentPath
// to get the content paths to write to.
FileSys::TitleMetadata tmd = container.GetTitleMetadata();
FileUtil::IOFile file(GetTitleContentPath(media_type, tmd.GetTitleID(), i, is_update),
content_written[i] ? "ab" : "wb");
if (!file.IsOpen()) {
return FileSys::ERROR_INSUFFICIENT_SPACE;
}
auto& file = content_files[i];
std::vector<u8> temp(buffer + (range_min - offset),
buffer + (range_min - offset) + available_to_write);
if ((tmd.GetContentTypeByIndex(i) & FileSys::TMDContentTypeFlag::Encrypted) != 0) {
if (decryption_state->content.size() <= i) {
// TODO: There is probably no correct error to return here. What error should be
// returned?
return FileSys::ERROR_INSUFFICIENT_SPACE;
}
decryption_state->content[i].ProcessData(temp.data(), temp.data(), temp.size());
}
@ -234,8 +261,9 @@ ResultVal<std::size_t> CIAFile::Write(u64 offset, std::size_t length, bool flush
}
// If we don't have a header yet, we can't pull offsets of other sections
if (install_state == CIAInstallState::InstallStarted)
if (install_state == CIAInstallState::InstallStarted) {
return length;
}
// If we have been given data before (or including) .app content, pull it into
// our buffer, but only pull *up to* the content offset, no further.
@ -251,28 +279,30 @@ ResultVal<std::size_t> CIAFile::Write(u64 offset, std::size_t length, bool flush
std::memcpy(data.data() + copy_offset, buffer + buf_offset, buf_copy_size);
}
// TODO(shinyquagsire23): Write out .tik files to nand?
// The end of our TMD is at the beginning of Content data, so ensure we have that much
// buffered before trying to parse.
if (written >= container.GetContentOffset() && install_state != CIAInstallState::TMDLoaded) {
auto result = WriteTicket();
if (result.IsError())
if (result.IsError()) {
return result;
}
result = WriteTitleMetadata();
if (result.IsError())
if (result.IsError()) {
return result;
}
}
// Content data sizes can only be retrieved from TMD data
if (install_state != CIAInstallState::TMDLoaded)
if (install_state != CIAInstallState::TMDLoaded) {
return length;
}
// From this point forward, data will no longer be buffered in data
auto result = WriteContentData(offset, length, buffer);
if (result.Failed())
if (result.Failed()) {
return result;
}
return length;
}
@ -286,11 +316,13 @@ bool CIAFile::SetSize(u64 size) const {
}
bool CIAFile::Close() const {
bool complete = true;
for (std::size_t i = 0; i < container.GetTitleMetadata().GetContentCount(); i++) {
if (content_written[i] < container.GetContentSize(static_cast<u16>(i)))
complete = false;
}
bool complete =
install_state >= CIAInstallState::TMDLoaded &&
content_written.size() == container.GetTitleMetadata().GetContentCount() &&
std::all_of(content_written.begin(), content_written.end(),
[this, i = 0](auto& bytes_written) mutable {
return bytes_written >= container.GetContentSize(static_cast<u16>(i++));
});
// Install aborted
if (!complete) {
@ -314,16 +346,17 @@ bool CIAFile::Close() const {
// For each content ID in the old TMD, check if there is a matching ID in the new
// TMD. If a CIA contains (and wrote to) an identical ID, it should be kept while
// IDs which only existed for the old TMD should be deleted.
for (u16 old_index = 0; old_index < old_tmd.GetContentCount(); old_index++) {
for (std::size_t old_index = 0; old_index < old_tmd.GetContentCount(); old_index++) {
bool abort = false;
for (u16 new_index = 0; new_index < new_tmd.GetContentCount(); new_index++) {
for (std::size_t new_index = 0; new_index < new_tmd.GetContentCount(); new_index++) {
if (old_tmd.GetContentIDByIndex(old_index) ==
new_tmd.GetContentIDByIndex(new_index)) {
abort = true;
}
}
if (abort)
if (abort) {
break;
}
// If the file to delete is the current launched rom, signal the system to delete
// the current rom instead of deleting it now, once all the handles to the file
@ -331,8 +364,9 @@ bool CIAFile::Close() const {
std::string to_delete =
GetTitleContentPath(media_type, old_tmd.GetTitleID(), old_index);
if (!(Core::System::GetInstance().IsPoweredOn() &&
Core::System::GetInstance().SetSelfDelete(to_delete)))
Core::System::GetInstance().SetSelfDelete(to_delete))) {
FileUtil::Delete(to_delete);
}
}
FileUtil::Delete(old_tmd_path);
@ -357,29 +391,29 @@ InstallStatus InstallCIA(const std::string& path,
Service::AM::GetTitleMediaType(container.GetTitleMetadata().GetTitleID()));
bool title_key_available = container.GetTicket().GetTitleKey().has_value();
for (std::size_t i = 0; i < container.GetTitleMetadata().GetContentCount(); i++) {
if ((container.GetTitleMetadata().GetContentTypeByIndex(static_cast<u16>(i)) &
FileSys::TMDContentTypeFlag::Encrypted) &&
!title_key_available) {
LOG_ERROR(Service_AM, "File {} is encrypted! Aborting...", path);
return InstallStatus::ErrorEncrypted;
}
if (!title_key_available && container.GetTitleMetadata().HasEncryptedContent()) {
LOG_ERROR(Service_AM, "File {} is encrypted and no title key is available! Aborting...",
path);
return InstallStatus::ErrorEncrypted;
}
FileUtil::IOFile file(path, "rb");
if (!file.IsOpen())
if (!file.IsOpen()) {
LOG_ERROR(Service_AM, "Could not open CIA file '{}'.", path);
return InstallStatus::ErrorFailedToOpenFile;
}
std::array<u8, 0x10000> buffer;
auto file_size = file.GetSize();
std::size_t total_bytes_read = 0;
while (total_bytes_read != file.GetSize()) {
while (total_bytes_read != file_size) {
std::size_t bytes_read = file.ReadBytes(buffer.data(), buffer.size());
auto result = installFile.Write(static_cast<u64>(total_bytes_read), bytes_read, true,
static_cast<u8*>(buffer.data()));
if (update_callback)
update_callback(total_bytes_read, file.GetSize());
if (update_callback) {
update_callback(total_bytes_read, file_size);
}
if (result.Failed()) {
LOG_ERROR(Service_AM, "CIA file installation aborted with error code {:08x}",
result.Code().raw);

5
src/core/hle/service/am/am.h
View File

@ -26,6 +26,10 @@ namespace Core {
class System;
}
namespace FileUtil {
class IOFile;
}
namespace Service::FS {
enum class MediaType : u32;
}
@ -96,6 +100,7 @@ private:
FileSys::CIAContainer container;
std::vector<u8> data;
std::vector<u64> content_written;
std::vector<FileUtil::IOFile> content_files;
Service::FS::MediaType media_type;
class DecryptionState;