diff options
Diffstat (limited to 'src/core')
-rw-r--r-- | src/core/file_sys/registered_cache.cpp | 98 | ||||
-rw-r--r-- | src/core/file_sys/registered_cache.h | 4 |
2 files changed, 92 insertions, 10 deletions
diff --git a/src/core/file_sys/registered_cache.cpp b/src/core/file_sys/registered_cache.cpp index 27c1b0233..37351c561 100644 --- a/src/core/file_sys/registered_cache.cpp +++ b/src/core/file_sys/registered_cache.cpp @@ -547,6 +547,56 @@ InstallResult RegisteredCache::InstallEntry(const XCI& xci, bool overwrite_if_ex return InstallEntry(*xci.GetSecurePartitionNSP(), overwrite_if_exists, copy); } +bool RegisteredCache::RemoveExistingEntry(u64 title_id) { + const auto delete_nca = [this](const NcaID& id) { + const auto path = GetRelativePathFromNcaID(id, false, true, false); + + if (dir->GetFileRelative(path) == nullptr) { + return false; + } + + Core::Crypto::SHA256Hash hash{}; + mbedtls_sha256_ret(id.data(), id.size(), hash.data(), 0); + const auto dirname = fmt::format("000000{:02X}", hash[0]); + + const auto dir2 = GetOrCreateDirectoryRelative(dir, dirname); + + const auto res = dir2->DeleteFile(fmt::format("{}.nca", Common::HexToString(id, false))); + + return res; + }; + + // If an entry exists in the registered cache, remove it + if (HasEntry(title_id, ContentRecordType::Meta)) { + LOG_INFO(Loader, + "Previously installed entry (v{}) for title_id={:016X} detected! " + "Attempting to remove...", + GetEntryVersion(title_id).value_or(0), title_id); + // Get all the ncas associated with the current CNMT and delete them + const auto meta_old_id = + GetNcaIDFromMetadata(title_id, ContentRecordType::Meta).value_or(NcaID{}); + const auto program_id = + GetNcaIDFromMetadata(title_id, ContentRecordType::Program).value_or(NcaID{}); + const auto data_id = + GetNcaIDFromMetadata(title_id, ContentRecordType::Data).value_or(NcaID{}); + const auto control_id = + GetNcaIDFromMetadata(title_id, ContentRecordType::Control).value_or(NcaID{}); + const auto html_id = + GetNcaIDFromMetadata(title_id, ContentRecordType::HtmlDocument).value_or(NcaID{}); + const auto legal_id = + GetNcaIDFromMetadata(title_id, ContentRecordType::LegalInformation).value_or(NcaID{}); + + delete_nca(meta_old_id); + delete_nca(program_id); + delete_nca(data_id); + delete_nca(control_id); + delete_nca(html_id); + delete_nca(legal_id); + return true; + } + return false; +} + InstallResult RegisteredCache::InstallEntry(const NSP& nsp, bool overwrite_if_exists, const VfsCopyFunction& copy) { const auto ncas = nsp.GetNCAsCollapsed(); @@ -560,31 +610,57 @@ InstallResult RegisteredCache::InstallEntry(const NSP& nsp, bool overwrite_if_ex return InstallResult::ErrorMetaFailed; } - // Install Metadata File const auto meta_id_raw = (*meta_iter)->GetName().substr(0, 32); const auto meta_id = Common::HexStringToArray<16>(meta_id_raw); - const auto res = RawInstallNCA(**meta_iter, copy, overwrite_if_exists, meta_id); - if (res != InstallResult::Success) - return res; + if ((*meta_iter)->GetSubdirectories().empty()) { + LOG_ERROR(Loader, + "The file you are attempting to install does not contain a section0 within the " + "metadata NCA and is therefore malformed. Verify that the file is valid."); + return InstallResult::ErrorMetaFailed; + } - // Install all the other NCAs const auto section0 = (*meta_iter)->GetSubdirectories()[0]; + + if (section0->GetFiles().empty()) { + LOG_ERROR(Loader, + "The file you are attempting to install does not contain a CNMT within the " + "metadata NCA and is therefore malformed. Verify that the file is valid."); + return InstallResult::ErrorMetaFailed; + } + const auto cnmt_file = section0->GetFiles()[0]; const CNMT cnmt(cnmt_file); + + const auto title_id = cnmt.GetTitleID(); + const auto result = RemoveExistingEntry(title_id); + + // Install Metadata File + const auto res = RawInstallNCA(**meta_iter, copy, overwrite_if_exists, meta_id); + if (res != InstallResult::Success) { + return res; + } + + // Install all the other NCAs for (const auto& record : cnmt.GetContentRecords()) { // Ignore DeltaFragments, they are not useful to us - if (record.type == ContentRecordType::DeltaFragment) + if (record.type == ContentRecordType::DeltaFragment) { continue; + } const auto nca = GetNCAFromNSPForID(nsp, record.nca_id); - if (nca == nullptr) + if (nca == nullptr) { return InstallResult::ErrorCopyFailed; + } const auto res2 = RawInstallNCA(*nca, copy, overwrite_if_exists, record.nca_id); - if (res2 != InstallResult::Success) + if (res2 != InstallResult::Success) { return res2; + } } Refresh(); + if (result) { + return InstallResult::OverwriteExisting; + } return InstallResult::Success; } @@ -610,8 +686,9 @@ InstallResult RegisteredCache::InstallEntry(const NCA& nca, TitleType type, mbedtls_sha256_ret(data.data(), data.size(), c_rec.hash.data(), 0); memcpy(&c_rec.nca_id, &c_rec.hash, 16); const CNMT new_cnmt(header, opt_header, {c_rec}, {}); - if (!RawInstallYuzuMeta(new_cnmt)) + if (!RawInstallYuzuMeta(new_cnmt)) { return InstallResult::ErrorMetaFailed; + } return RawInstallNCA(nca, copy, overwrite_if_exists, c_rec.nca_id); } @@ -649,8 +726,9 @@ InstallResult RegisteredCache::RawInstallNCA(const NCA& nca, const VfsCopyFuncti } auto out = dir->CreateFileRelative(path); - if (out == nullptr) + if (out == nullptr) { return InstallResult::ErrorCopyFailed; + } return copy(in, out, VFS_RC_LARGE_COPY_BLOCK) ? InstallResult::Success : InstallResult::ErrorCopyFailed; } diff --git a/src/core/file_sys/registered_cache.h b/src/core/file_sys/registered_cache.h index f339cd17b..29cf0d40c 100644 --- a/src/core/file_sys/registered_cache.h +++ b/src/core/file_sys/registered_cache.h @@ -34,6 +34,7 @@ using VfsCopyFunction = std::function<bool(const VirtualFile&, const VirtualFile enum class InstallResult { Success, + OverwriteExisting, ErrorAlreadyExists, ErrorCopyFailed, ErrorMetaFailed, @@ -154,6 +155,9 @@ public: std::optional<TitleType> title_type = {}, std::optional<ContentRecordType> record_type = {}, std::optional<u64> title_id = {}) const override; + // Removes an existing entry based on title id + bool RemoveExistingEntry(u64 title_id); + // Raw copies all the ncas from the xci/nsp to the csache. Does some quick checks to make sure // there is a meta NCA and all of them are accessible. InstallResult InstallEntry(const XCI& xci, bool overwrite_if_exists = false, |