diff options
Diffstat (limited to 'src/core/hle/service/bcat/delivery_cache_directory_service.cpp')
-rw-r--r-- | src/core/hle/service/bcat/delivery_cache_directory_service.cpp | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/src/core/hle/service/bcat/delivery_cache_directory_service.cpp b/src/core/hle/service/bcat/delivery_cache_directory_service.cpp new file mode 100644 index 000000000..01f08a2fc --- /dev/null +++ b/src/core/hle/service/bcat/delivery_cache_directory_service.cpp @@ -0,0 +1,80 @@ +// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project +// SPDX-License-Identifier: GPL-3.0-or-later + +#include "common/string_util.h" +#include "core/file_sys/vfs/vfs_types.h" +#include "core/hle/service/bcat/bcat_result.h" +#include "core/hle/service/bcat/bcat_util.h" +#include "core/hle/service/bcat/delivery_cache_directory_service.h" +#include "core/hle/service/cmif_serialization.h" + +namespace Service::BCAT { + +// The digest is only used to determine if a file is unique compared to others of the same name. +// Since the algorithm isn't ever checked in game, MD5 is safe. +static BcatDigest DigestFile(const FileSys::VirtualFile& file) { + BcatDigest out{}; + const auto bytes = file->ReadAllBytes(); + mbedtls_md5_ret(bytes.data(), bytes.size(), out.data()); + return out; +} + +IDeliveryCacheDirectoryService::IDeliveryCacheDirectoryService(Core::System& system_, + FileSys::VirtualDir root_) + : ServiceFramework{system_, "IDeliveryCacheDirectoryService"}, root(std::move(root_)) { + // clang-format off + static const FunctionInfo functions[] = { + {0, D<&IDeliveryCacheDirectoryService::Open>, "Open"}, + {1, D<&IDeliveryCacheDirectoryService::Read>, "Read"}, + {2, D<&IDeliveryCacheDirectoryService::GetCount>, "GetCount"}, + }; + // clang-format on + + RegisterHandlers(functions); +} + +IDeliveryCacheDirectoryService::~IDeliveryCacheDirectoryService() = default; + +Result IDeliveryCacheDirectoryService::Open(const DirectoryName& dir_name_raw) { + const auto dir_name = + Common::StringFromFixedZeroTerminatedBuffer(dir_name_raw.data(), dir_name_raw.size()); + + LOG_DEBUG(Service_BCAT, "called, dir_name={}", dir_name); + + R_TRY(VerifyNameValidDir(dir_name_raw)); + R_UNLESS(current_dir == nullptr, ResultEntityAlreadyOpen); + + const auto dir = root->GetSubdirectory(dir_name); + R_UNLESS(dir != nullptr, ResultFailedOpenEntity); + + R_SUCCEED(); +} + +Result IDeliveryCacheDirectoryService::Read( + Out<s32> out_count, OutArray<DeliveryCacheDirectoryEntry, BufferAttr_HipcMapAlias> out_buffer) { + LOG_DEBUG(Service_BCAT, "called, write_size={:016X}", out_buffer.size()); + + R_UNLESS(current_dir != nullptr, ResultNoOpenEntry); + + const auto files = current_dir->GetFiles(); + *out_count = static_cast<s32>(std::min(files.size(), out_buffer.size())); + std::transform(files.begin(), files.begin() + *out_count, out_buffer.begin(), + [](const auto& file) { + FileName name{}; + std::memcpy(name.data(), file->GetName().data(), + std::min(file->GetName().size(), name.size())); + return DeliveryCacheDirectoryEntry{name, file->GetSize(), DigestFile(file)}; + }); + R_SUCCEED(); +} + +Result IDeliveryCacheDirectoryService::GetCount(Out<s32> out_count) { + LOG_DEBUG(Service_BCAT, "called"); + + R_UNLESS(current_dir != nullptr, ResultNoOpenEntry); + + *out_count = static_cast<s32>(current_dir->GetFiles().size()); + R_SUCCEED(); +} + +} // namespace Service::BCAT |