early-access version 4126EA-4126

35 files changed, 1286 insertions, 85 deletions

diff --git a/README.md b/README.md
index 2950656e4..14c8e422e 100755
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 yuzu emulator early access
 =============
 
-This is the source code for early-access 4125.
+This is the source code for early-access 4126.
 
 ## Legal Notice
 
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 5b2de4ab7..8c74878ab 100755
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -512,10 +512,35 @@ add_library(core STATIC
     hle/service/audio/hwopus.h

     hle/service/bcat/backend/backend.cpp

     hle/service/bcat/backend/backend.h

+    hle/service/bcat/news/newly_arrived_event_holder.cpp

+    hle/service/bcat/news/newly_arrived_event_holder.h

+    hle/service/bcat/news/news_data_service.cpp

+    hle/service/bcat/news/news_data_service.h

+    hle/service/bcat/news/news_database_service.cpp

+    hle/service/bcat/news/news_database_service.h

+    hle/service/bcat/news/news_service.cpp

+    hle/service/bcat/news/news_service.h

+    hle/service/bcat/news/overwrite_event_holder.cpp

+    hle/service/bcat/news/overwrite_event_holder.h

+    hle/service/bcat/news/service_creator.cpp

+    hle/service/bcat/news/service_creator.h

     hle/service/bcat/bcat.cpp

     hle/service/bcat/bcat.h

-    hle/service/bcat/bcat_module.cpp

-    hle/service/bcat/bcat_module.h

+    hle/service/bcat/bcat_result.h

+    hle/service/bcat/bcat_service.cpp

+    hle/service/bcat/bcat_service.h

+    hle/service/bcat/bcat_types.h

+    hle/service/bcat/bcat_util.h

+    hle/service/bcat/delivery_cache_directory_service.cpp

+    hle/service/bcat/delivery_cache_directory_service.h

+    hle/service/bcat/delivery_cache_file_service.cpp

+    hle/service/bcat/delivery_cache_file_service.h

+    hle/service/bcat/delivery_cache_progress_service.cpp

+    hle/service/bcat/delivery_cache_progress_service.h

+    hle/service/bcat/delivery_cache_storage_service.cpp

+    hle/service/bcat/delivery_cache_storage_service.h

+    hle/service/bcat/service_creator.cpp

+    hle/service/bcat/service_creator.h

     hle/service/bpc/bpc.cpp

     hle/service/bpc/bpc.h

     hle/service/btdrv/btdrv.cpp

diff --git a/src/core/file_sys/errors.h b/src/core/file_sys/errors.h
index 50f65cc5f..1e9489701 100755
--- a/src/core/file_sys/errors.h
+++ b/src/core/file_sys/errors.h
@@ -91,6 +91,7 @@ constexpr Result ResultWriteNotPermitted{ErrorModule::FS, 6203};
 constexpr Result ResultUnsupportedSetSizeForIndirectStorage{ErrorModule::FS, 6325};

 constexpr Result ResultUnsupportedWriteForCompressedStorage{ErrorModule::FS, 6387};

 constexpr Result ResultUnsupportedOperateRangeForCompressedStorage{ErrorModule::FS, 6388};

+constexpr Result ResultPermissionDenied{ErrorModule::FS, 6400};

 constexpr Result ResultBufferAllocationFailed{ErrorModule::FS, 6705};

 

 } // namespace FileSys

diff --git a/src/core/hle/service/bcat/backend/backend.cpp b/src/core/hle/service/bcat/backend/backend.cpp
index 0d9cf9914..b21589031 100755
--- a/src/core/hle/service/bcat/backend/backend.cpp
+++ b/src/core/hle/service/bcat/backend/backend.cpp
@@ -33,18 +33,18 @@ void ProgressServiceBackend::SetTotalSize(u64 size) {
 }

 

 void ProgressServiceBackend::StartConnecting() {

-    impl.status = DeliveryCacheProgressImpl::Status::Connecting;

+    impl.status = DeliveryCacheProgressStatus::Connecting;

     SignalUpdate();

 }

 

 void ProgressServiceBackend::StartProcessingDataList() {

-    impl.status = DeliveryCacheProgressImpl::Status::ProcessingDataList;

+    impl.status = DeliveryCacheProgressStatus::ProcessingDataList;

     SignalUpdate();

 }

 

 void ProgressServiceBackend::StartDownloadingFile(std::string_view dir_name,

                                                   std::string_view file_name, u64 file_size) {

-    impl.status = DeliveryCacheProgressImpl::Status::Downloading;

+    impl.status = DeliveryCacheProgressStatus::Downloading;

     impl.current_downloaded_bytes = 0;

     impl.current_total_bytes = file_size;

     std::memcpy(impl.current_directory.data(), dir_name.data(),

@@ -65,7 +65,7 @@ void ProgressServiceBackend::FinishDownloadingFile() {
 }

 

 void ProgressServiceBackend::CommitDirectory(std::string_view dir_name) {

-    impl.status = DeliveryCacheProgressImpl::Status::Committing;

+    impl.status = DeliveryCacheProgressStatus::Committing;

     impl.current_file.fill(0);

     impl.current_downloaded_bytes = 0;

     impl.current_total_bytes = 0;

@@ -76,7 +76,7 @@ void ProgressServiceBackend::CommitDirectory(std::string_view dir_name) {
 

 void ProgressServiceBackend::FinishDownload(Result result) {

     impl.total_downloaded_bytes = impl.total_bytes;

-    impl.status = DeliveryCacheProgressImpl::Status::Done;

+    impl.status = DeliveryCacheProgressStatus::Done;

     impl.result = result;

     SignalUpdate();

 }

@@ -85,15 +85,15 @@ void ProgressServiceBackend::SignalUpdate() {
     update_event->Signal();

 }

 

-Backend::Backend(DirectoryGetter getter) : dir_getter(std::move(getter)) {}

+BcatBackend::BcatBackend(DirectoryGetter getter) : dir_getter(std::move(getter)) {}

 

-Backend::~Backend() = default;

+BcatBackend::~BcatBackend() = default;

 

-NullBackend::NullBackend(DirectoryGetter getter) : Backend(std::move(getter)) {}

+NullBcatBackend::NullBcatBackend(DirectoryGetter getter) : BcatBackend(std::move(getter)) {}

 

-NullBackend::~NullBackend() = default;

+NullBcatBackend::~NullBcatBackend() = default;

 

-bool NullBackend::Synchronize(TitleIDVersion title, ProgressServiceBackend& progress) {

+bool NullBcatBackend::Synchronize(TitleIDVersion title, ProgressServiceBackend& progress) {

     LOG_DEBUG(Service_BCAT, "called, title_id={:016X}, build_id={:016X}", title.title_id,

               title.build_id);

 

@@ -101,8 +101,8 @@ bool NullBackend::Synchronize(TitleIDVersion title, ProgressServiceBackend& prog
     return true;

 }

 

-bool NullBackend::SynchronizeDirectory(TitleIDVersion title, std::string name,

-                                       ProgressServiceBackend& progress) {

+bool NullBcatBackend::SynchronizeDirectory(TitleIDVersion title, std::string name,

+                                           ProgressServiceBackend& progress) {

     LOG_DEBUG(Service_BCAT, "called, title_id={:016X}, build_id={:016X}, name={}", title.title_id,

               title.build_id, name);

 

@@ -110,18 +110,18 @@ bool NullBackend::SynchronizeDirectory(TitleIDVersion title, std::string name,
     return true;

 }

 

-bool NullBackend::Clear(u64 title_id) {

+bool NullBcatBackend::Clear(u64 title_id) {

     LOG_DEBUG(Service_BCAT, "called, title_id={:016X}", title_id);

 

     return true;

 }

 

-void NullBackend::SetPassphrase(u64 title_id, const Passphrase& passphrase) {

+void NullBcatBackend::SetPassphrase(u64 title_id, const Passphrase& passphrase) {

     LOG_DEBUG(Service_BCAT, "called, title_id={:016X}, passphrase={}", title_id,

               Common::HexToString(passphrase));

 }

 

-std::optional<std::vector<u8>> NullBackend::GetLaunchParameter(TitleIDVersion title) {

+std::optional<std::vector<u8>> NullBcatBackend::GetLaunchParameter(TitleIDVersion title) {

     LOG_DEBUG(Service_BCAT, "called, title_id={:016X}, build_id={:016X}", title.title_id,

               title.build_id);

     return std::nullopt;

diff --git a/src/core/hle/service/bcat/backend/backend.h b/src/core/hle/service/bcat/backend/backend.h
index 50cc630ec..06962430f 100755
--- a/src/core/hle/service/bcat/backend/backend.h
+++ b/src/core/hle/service/bcat/backend/backend.h
@@ -10,6 +10,7 @@
 #include "common/common_types.h"

 #include "core/file_sys/vfs/vfs_types.h"

 #include "core/hle/result.h"

+#include "core/hle/service/bcat/bcat_types.h"

 #include "core/hle/service/kernel_helpers.h"

 

 namespace Core {

@@ -24,44 +25,6 @@ class KReadableEvent;
 

 namespace Service::BCAT {

 

-struct DeliveryCacheProgressImpl;

-

-using DirectoryGetter = std::function<FileSys::VirtualDir(u64)>;

-using Passphrase = std::array<u8, 0x20>;

-

-struct TitleIDVersion {

-    u64 title_id;

-    u64 build_id;

-};

-

-using DirectoryName = std::array<char, 0x20>;

-using FileName = std::array<char, 0x20>;

-

-struct DeliveryCacheProgressImpl {

-    enum class Status : s32 {

-        None = 0x0,

-        Queued = 0x1,

-        Connecting = 0x2,

-        ProcessingDataList = 0x3,

-        Downloading = 0x4,

-        Committing = 0x5,

-        Done = 0x9,

-    };

-

-    Status status;

-    Result result = ResultSuccess;

-    DirectoryName current_directory;

-    FileName current_file;

-    s64 current_downloaded_bytes; ///< Bytes downloaded on current file.

-    s64 current_total_bytes;      ///< Bytes total on current file.

-    s64 total_downloaded_bytes;   ///< Bytes downloaded on overall download.

-    s64 total_bytes;              ///< Bytes total on overall download.

-    INSERT_PADDING_BYTES(

-        0x198); ///< Appears to be unused in official code, possibly reserved for future use.

-};

-static_assert(sizeof(DeliveryCacheProgressImpl) == 0x200,

-              "DeliveryCacheProgressImpl has incorrect size.");

-

 // A class to manage the signalling to the game about BCAT download progress.

 // Some of this class is implemented in module.cpp to avoid exposing the implementation structure.

 class ProgressServiceBackend {

@@ -107,10 +70,10 @@ private:
 };

 

 // A class representing an abstract backend for BCAT functionality.

-class Backend {

+class BcatBackend {

 public:

-    explicit Backend(DirectoryGetter getter);

-    virtual ~Backend();

+    explicit BcatBackend(DirectoryGetter getter);

+    virtual ~BcatBackend();

 

     // Called when the backend is needed to synchronize the data for the game with title ID and

     // version in title. A ProgressServiceBackend object is provided to alert the application of

@@ -135,10 +98,10 @@ protected:
 };

 

 // A backend of BCAT that provides no operation.

-class NullBackend : public Backend {

+class NullBcatBackend : public BcatBackend {

 public:

-    explicit NullBackend(DirectoryGetter getter);

-    ~NullBackend() override;

+    explicit NullBcatBackend(DirectoryGetter getter);

+    ~NullBcatBackend() override;

 

     bool Synchronize(TitleIDVersion title, ProgressServiceBackend& progress) override;

     bool SynchronizeDirectory(TitleIDVersion title, std::string name,

@@ -151,6 +114,7 @@ public:
     std::optional<std::vector<u8>> GetLaunchParameter(TitleIDVersion title) override;

 };

 

-std::unique_ptr<Backend> CreateBackendFromSettings(Core::System& system, DirectoryGetter getter);

+std::unique_ptr<BcatBackend> CreateBackendFromSettings(Core::System& system,

+                                                       DirectoryGetter getter);

 

 } // namespace Service::BCAT

diff --git a/src/core/hle/service/bcat/bcat.cpp b/src/core/hle/service/bcat/bcat.cpp
index 1189cef88..352d411f3 100755
--- a/src/core/hle/service/bcat/bcat.cpp
+++ b/src/core/hle/service/bcat/bcat.cpp
@@ -1,24 +1,38 @@
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project

 // SPDX-License-Identifier: GPL-2.0-or-later

 

+#include "core/hle/service/bcat/backend/backend.h"

 #include "core/hle/service/bcat/bcat.h"

+#include "core/hle/service/bcat/news/service_creator.h"

+#include "core/hle/service/bcat/service_creator.h"

+#include "core/hle/service/server_manager.h"

 

 namespace Service::BCAT {

 

-BCAT::BCAT(Core::System& system_, std::shared_ptr<Module> module_,

-           FileSystem::FileSystemController& fsc_, const char* name_)

-    : Interface(system_, std::move(module_), fsc_, name_) {

-    // clang-format off

-    static const FunctionInfo functions[] = {

-        {0, &BCAT::CreateBcatService, "CreateBcatService"},

-        {1, &BCAT::CreateDeliveryCacheStorageService, "CreateDeliveryCacheStorageService"},

-        {2, &BCAT::CreateDeliveryCacheStorageServiceWithApplicationId, "CreateDeliveryCacheStorageServiceWithApplicationId"},

-        {3, nullptr, "CreateDeliveryCacheProgressService"},

-        {4, nullptr, "CreateDeliveryCacheProgressServiceWithApplicationId"},

-    };

-    // clang-format on

-    RegisterHandlers(functions);

+void LoopProcess(Core::System& system) {

+    auto server_manager = std::make_unique<ServerManager>(system);

+

+    server_manager->RegisterNamedService("bcat:a",

+                                         std::make_shared<IServiceCreator>(system, "bcat:a"));

+    server_manager->RegisterNamedService("bcat:m",

+                                         std::make_shared<IServiceCreator>(system, "bcat:m"));

+    server_manager->RegisterNamedService("bcat:u",

+                                         std::make_shared<IServiceCreator>(system, "bcat:u"));

+    server_manager->RegisterNamedService("bcat:s",

+                                         std::make_shared<IServiceCreator>(system, "bcat:s"));

+

+    server_manager->RegisterNamedService(

+        "news:a", std::make_shared<News::IServiceCreator>(system, 0xffffffff, "news:a"));

+    server_manager->RegisterNamedService(

+        "news:p", std::make_shared<News::IServiceCreator>(system, 0x1, "news:p"));

+    server_manager->RegisterNamedService(

+        "news:c", std::make_shared<News::IServiceCreator>(system, 0x2, "news:c"));

+    server_manager->RegisterNamedService(

+        "news:v", std::make_shared<News::IServiceCreator>(system, 0x4, "news:v"));

+    server_manager->RegisterNamedService(

+        "news:m", std::make_shared<News::IServiceCreator>(system, 0xd, "news:m"));

+

+    ServerManager::RunServer(std::move(server_manager));

 }

 

-BCAT::~BCAT() = default;

 } // namespace Service::BCAT

diff --git a/src/core/hle/service/bcat/bcat.h b/src/core/hle/service/bcat/bcat.h
index 7de66ced4..fb0999f04 100755
--- a/src/core/hle/service/bcat/bcat.h
+++ b/src/core/hle/service/bcat/bcat.h
@@ -3,7 +3,7 @@
 

 #pragma once

 

-#include "core/hle/service/bcat/bcat_module.h"

+#include "core/hle/service/service.h"

 

 namespace Core {

 class System;

@@ -11,11 +11,6 @@ class System;
 

 namespace Service::BCAT {

 

-class BCAT final : public Module::Interface {

-public:

-    explicit BCAT(Core::System& system_, std::shared_ptr<Module> module_,

-                  FileSystem::FileSystemController& fsc_, const char* name_);

-    ~BCAT() override;

-};

+void LoopProcess(Core::System& system);

 

 } // namespace Service::BCAT

diff --git a/src/core/hle/service/bcat/bcat_result.h b/src/core/hle/service/bcat/bcat_result.h
new file mode 100755
index 000000000..edf8a6564
--- /dev/null
+++ b/src/core/hle/service/bcat/bcat_result.h
@@ -0,0 +1,15 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/result.h"
+
+namespace Service::BCAT {
+
+constexpr Result ResultInvalidArgument{ErrorModule::BCAT, 1};
+constexpr Result ResultFailedOpenEntity{ErrorModule::BCAT, 2};
+constexpr Result ResultEntityAlreadyOpen{ErrorModule::BCAT, 6};
+constexpr Result ResultNoOpenEntry{ErrorModule::BCAT, 7};
+
+} // namespace Service::BCAT
diff --git a/src/core/hle/service/bcat/bcat_service.cpp b/src/core/hle/service/bcat/bcat_service.cpp
new file mode 100755
index 000000000..6e1ea43ac
--- /dev/null
+++ b/src/core/hle/service/bcat/bcat_service.cpp
@@ -0,0 +1,132 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/hex_util.h"
+#include "common/string_util.h"
+#include "core/core.h"
+#include "core/file_sys/errors.h"
+#include "core/hle/service/bcat/backend/backend.h"
+#include "core/hle/service/bcat/bcat_result.h"
+#include "core/hle/service/bcat/bcat_service.h"
+#include "core/hle/service/bcat/bcat_util.h"
+#include "core/hle/service/bcat/delivery_cache_progress_service.h"
+#include "core/hle/service/bcat/delivery_cache_storage_service.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::BCAT {
+
+static u64 GetCurrentBuildID(const Core::System::CurrentBuildProcessID& id) {
+    u64 out{};
+    std::memcpy(&out, id.data(), sizeof(u64));
+    return out;
+}
+
+IBcatService::IBcatService(Core::System& system_, BcatBackend& backend_)
+    : ServiceFramework{system_, "IBcatService"}, backend{backend_},
+      progress{{
+          ProgressServiceBackend{system_, "Normal"},
+          ProgressServiceBackend{system_, "Directory"},
+      }} {
+    // clang-format off
+        static const FunctionInfo functions[] = {
+            {10100, C<&IBcatService::RequestSyncDeliveryCache>, "RequestSyncDeliveryCache"},
+            {10101, C<&IBcatService::RequestSyncDeliveryCacheWithDirectoryName>, "RequestSyncDeliveryCacheWithDirectoryName"},
+            {10200, nullptr, "CancelSyncDeliveryCacheRequest"},
+            {20100, nullptr, "RequestSyncDeliveryCacheWithApplicationId"},
+            {20101, nullptr, "RequestSyncDeliveryCacheWithApplicationIdAndDirectoryName"},
+            {20300, nullptr, "GetDeliveryCacheStorageUpdateNotifier"},
+            {20301, nullptr, "RequestSuspendDeliveryTask"},
+            {20400, nullptr, "RegisterSystemApplicationDeliveryTask"},
+            {20401, nullptr, "UnregisterSystemApplicationDeliveryTask"},
+            {20410, nullptr, "SetSystemApplicationDeliveryTaskTimer"},
+            {30100, C<&IBcatService::SetPassphrase>, "SetPassphrase"},
+            {30101, nullptr, "Unknown30101"},
+            {30102, nullptr, "Unknown30102"},
+            {30200, nullptr, "RegisterBackgroundDeliveryTask"},
+            {30201, nullptr, "UnregisterBackgroundDeliveryTask"},
+            {30202, nullptr, "BlockDeliveryTask"},
+            {30203, nullptr, "UnblockDeliveryTask"},
+            {30210, nullptr, "SetDeliveryTaskTimer"},
+            {30300, C<&IBcatService::RegisterSystemApplicationDeliveryTasks>, "RegisterSystemApplicationDeliveryTasks"},
+            {90100, nullptr, "EnumerateBackgroundDeliveryTask"},
+            {90101, nullptr, "Unknown90101"},
+            {90200, nullptr, "GetDeliveryList"},
+            {90201, C<&IBcatService::ClearDeliveryCacheStorage>, "ClearDeliveryCacheStorage"},
+            {90202, nullptr, "ClearDeliveryTaskSubscriptionStatus"},
+            {90300, nullptr, "GetPushNotificationLog"},
+            {90301, nullptr, "Unknown90301"},
+        };
+    // clang-format on
+    RegisterHandlers(functions);
+}
+
+IBcatService::~IBcatService() = default;
+
+Result IBcatService::RequestSyncDeliveryCache(
+    OutInterface<IDeliveryCacheProgressService> out_interface) {
+    LOG_DEBUG(Service_BCAT, "called");
+
+    auto& progress_backend{GetProgressBackend(SyncType::Normal)};
+    backend.Synchronize({system.GetApplicationProcessProgramID(),
+                         GetCurrentBuildID(system.GetApplicationProcessBuildID())},
+                        GetProgressBackend(SyncType::Normal));
+
+    *out_interface = std::make_shared<IDeliveryCacheProgressService>(
+        system, progress_backend.GetEvent(), progress_backend.GetImpl());
+    R_SUCCEED();
+}
+
+Result IBcatService::RequestSyncDeliveryCacheWithDirectoryName(
+    const DirectoryName& name_raw, OutInterface<IDeliveryCacheProgressService> out_interface) {
+    const auto name = Common::StringFromFixedZeroTerminatedBuffer(name_raw.data(), name_raw.size());
+
+    LOG_DEBUG(Service_BCAT, "called, name={}", name);
+
+    auto& progress_backend{GetProgressBackend(SyncType::Directory)};
+    backend.SynchronizeDirectory({system.GetApplicationProcessProgramID(),
+                                  GetCurrentBuildID(system.GetApplicationProcessBuildID())},
+                                 name, progress_backend);
+
+    *out_interface = std::make_shared<IDeliveryCacheProgressService>(
+        system, progress_backend.GetEvent(), progress_backend.GetImpl());
+    R_SUCCEED();
+}
+
+Result IBcatService::SetPassphrase(u64 application_id,
+                                   InBuffer<BufferAttr_HipcPointer> passphrase_buffer) {
+    LOG_DEBUG(Service_BCAT, "called, application_id={:016X}, passphrase={}", application_id,
+              Common::HexToString(passphrase_buffer));
+
+    R_UNLESS(application_id != 0, ResultInvalidArgument);
+    R_UNLESS(passphrase_buffer.size() <= 0x40, ResultInvalidArgument);
+
+    Passphrase passphrase{};
+    std::memcpy(passphrase.data(), passphrase_buffer.data(),
+                std::min(passphrase.size(), passphrase_buffer.size()));
+
+    backend.SetPassphrase(application_id, passphrase);
+    R_SUCCEED();
+}
+
+Result IBcatService::RegisterSystemApplicationDeliveryTasks() {
+    LOG_WARNING(Service_BCAT, "(STUBBED) called");
+    R_SUCCEED();
+}
+
+Result IBcatService::ClearDeliveryCacheStorage(u64 application_id) {
+    LOG_DEBUG(Service_BCAT, "called, title_id={:016X}", application_id);
+
+    R_UNLESS(application_id != 0, ResultInvalidArgument);
+    R_UNLESS(backend.Clear(application_id), FileSys::ResultPermissionDenied);
+    R_SUCCEED();
+}
+
+ProgressServiceBackend& IBcatService::GetProgressBackend(SyncType type) {
+    return progress.at(static_cast<size_t>(type));
+}
+
+const ProgressServiceBackend& IBcatService::GetProgressBackend(SyncType type) const {
+    return progress.at(static_cast<size_t>(type));
+}
+
+} // namespace Service::BCAT
diff --git a/src/core/hle/service/bcat/bcat_service.h b/src/core/hle/service/bcat/bcat_service.h
new file mode 100755
index 000000000..dda5a2d5f
--- /dev/null
+++ b/src/core/hle/service/bcat/bcat_service.h
@@ -0,0 +1,45 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/service/bcat/backend/backend.h"
+#include "core/hle/service/bcat/bcat_types.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::BCAT {
+class BcatBackend;
+class IDeliveryCacheStorageService;
+class IDeliveryCacheProgressService;
+
+class IBcatService final : public ServiceFramework<IBcatService> {
+public:
+    explicit IBcatService(Core::System& system_, BcatBackend& backend_);
+    ~IBcatService() override;
+
+private:
+    Result RequestSyncDeliveryCache(OutInterface<IDeliveryCacheProgressService> out_interface);
+
+    Result RequestSyncDeliveryCacheWithDirectoryName(
+        const DirectoryName& name, OutInterface<IDeliveryCacheProgressService> out_interface);
+
+    Result SetPassphrase(u64 application_id, InBuffer<BufferAttr_HipcPointer> passphrase_buffer);
+
+    Result RegisterSystemApplicationDeliveryTasks();
+
+    Result ClearDeliveryCacheStorage(u64 application_id);
+
+private:
+    ProgressServiceBackend& GetProgressBackend(SyncType type);
+    const ProgressServiceBackend& GetProgressBackend(SyncType type) const;
+
+    BcatBackend& backend;
+    std::array<ProgressServiceBackend, static_cast<size_t>(SyncType::Count)> progress;
+};
+
+} // namespace Service::BCAT
diff --git a/src/core/hle/service/bcat/bcat_types.h b/src/core/hle/service/bcat/bcat_types.h
new file mode 100755
index 000000000..b35dab7c5
--- /dev/null
+++ b/src/core/hle/service/bcat/bcat_types.h
@@ -0,0 +1,66 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <array>
+#include <functional>
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "core/file_sys/vfs/vfs_types.h"
+#include "core/hle/result.h"
+
+namespace Service::BCAT {
+
+using DirectoryName = std::array<char, 0x20>;
+using FileName = std::array<char, 0x20>;
+using BcatDigest = std::array<u8, 0x10>;
+using Passphrase = std::array<u8, 0x20>;
+using DirectoryGetter = std::function<FileSys::VirtualDir(u64)>;
+
+enum class SyncType {
+    Normal,
+    Directory,
+    Count,
+};
+
+enum class DeliveryCacheProgressStatus : s32 {
+    None = 0x0,
+    Queued = 0x1,
+    Connecting = 0x2,
+    ProcessingDataList = 0x3,
+    Downloading = 0x4,
+    Committing = 0x5,
+    Done = 0x9,
+};
+
+struct DeliveryCacheDirectoryEntry {
+    FileName name;
+    u64 size;
+    BcatDigest digest;
+};
+
+struct TitleIDVersion {
+    u64 title_id;
+    u64 build_id;
+};
+
+struct DeliveryCacheProgressImpl {
+    DeliveryCacheProgressStatus status;
+    Result result;
+    DirectoryName current_directory;
+    FileName current_file;
+    s64 current_downloaded_bytes; ///< Bytes downloaded on current file.
+    s64 current_total_bytes;      ///< Bytes total on current file.
+    s64 total_downloaded_bytes;   ///< Bytes downloaded on overall download.
+    s64 total_bytes;              ///< Bytes total on overall download.
+    INSERT_PADDING_BYTES_NOINIT(
+        0x198); ///< Appears to be unused in official code, possibly reserved for future use.
+};
+static_assert(sizeof(DeliveryCacheProgressImpl) == 0x200,
+              "DeliveryCacheProgressImpl has incorrect size.");
+static_assert(std::is_trivial_v<DeliveryCacheProgressImpl>,
+              "DeliveryCacheProgressImpl type must be trivially copyable.");
+
+} // namespace Service::BCAT
diff --git a/src/core/hle/service/bcat/bcat_util.h b/src/core/hle/service/bcat/bcat_util.h
new file mode 100755
index 000000000..6bf2657ee
--- /dev/null
+++ b/src/core/hle/service/bcat/bcat_util.h
@@ -0,0 +1,39 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <array>
+#include <cctype>
+#include <mbedtls/md5.h>
+
+#include "core/hle/service/bcat/bcat_result.h"
+#include "core/hle/service/bcat/bcat_types.h"
+
+namespace Service::BCAT {
+
+// For a name to be valid it must be non-empty, must have a null terminating character as the final
+// char, can only contain numbers, letters, underscores and a hyphen if directory and a period if
+// file.
+constexpr Result VerifyNameValidInternal(std::array<char, 0x20> name, char match_char) {
+    const auto null_chars = std::count(name.begin(), name.end(), 0);
+    const auto bad_chars = std::count_if(name.begin(), name.end(), [match_char](char c) {
+        return !std::isalnum(static_cast<u8>(c)) && c != '_' && c != match_char && c != '\0';
+    });
+    if (null_chars == 0x20 || null_chars == 0 || bad_chars != 0 || name[0x1F] != '\0') {
+        LOG_ERROR(Service_BCAT, "Name passed was invalid!");
+        return ResultInvalidArgument;
+    }
+
+    return ResultSuccess;
+}
+
+constexpr Result VerifyNameValidDir(DirectoryName name) {
+    return VerifyNameValidInternal(name, '-');
+}
+
+constexpr Result VerifyNameValidFile(FileName name) {
+    return VerifyNameValidInternal(name, '.');
+}
+
+} // namespace Service::BCAT
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 100755
index 000000000..af47a3426
--- /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, C<&IDeliveryCacheDirectoryService::Open>, "Open"},
+        {1, C<&IDeliveryCacheDirectoryService::Read>, "Read"},
+        {2, C<&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
diff --git a/src/core/hle/service/bcat/delivery_cache_directory_service.h b/src/core/hle/service/bcat/delivery_cache_directory_service.h
new file mode 100755
index 000000000..b902c6495
--- /dev/null
+++ b/src/core/hle/service/bcat/delivery_cache_directory_service.h
@@ -0,0 +1,33 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/file_sys/vfs/vfs.h"
+#include "core/hle/service/bcat/bcat_types.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::BCAT {
+
+class IDeliveryCacheDirectoryService final
+    : public ServiceFramework<IDeliveryCacheDirectoryService> {
+public:
+    explicit IDeliveryCacheDirectoryService(Core::System& system_, FileSys::VirtualDir root_);
+    ~IDeliveryCacheDirectoryService() override;
+
+private:
+    Result Open(const DirectoryName& dir_name_raw);
+    Result Read(Out<s32> out_count,
+                OutArray<DeliveryCacheDirectoryEntry, BufferAttr_HipcMapAlias> out_buffer);
+    Result GetCount(Out<s32> out_count);
+
+    FileSys::VirtualDir root;
+    FileSys::VirtualDir current_dir;
+};
+
+} // namespace Service::BCAT
diff --git a/src/core/hle/service/bcat/delivery_cache_file_service.cpp b/src/core/hle/service/bcat/delivery_cache_file_service.cpp
new file mode 100755
index 000000000..f2f670494
--- /dev/null
+++ b/src/core/hle/service/bcat/delivery_cache_file_service.cpp
@@ -0,0 +1,82 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "common/string_util.h"
+#include "core/hle/service/bcat/bcat_result.h"
+#include "core/hle/service/bcat/bcat_util.h"
+#include "core/hle/service/bcat/delivery_cache_file_service.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::BCAT {
+
+IDeliveryCacheFileService::IDeliveryCacheFileService(Core::System& system_,
+                                                     FileSys::VirtualDir root_)
+    : ServiceFramework{system_, "IDeliveryCacheFileService"}, root(std::move(root_)) {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, C<&IDeliveryCacheFileService::Open>, "Open"},
+        {1, C<&IDeliveryCacheFileService::Read>, "Read"},
+        {2, C<&IDeliveryCacheFileService::GetSize>, "GetSize"},
+        {3, C<&IDeliveryCacheFileService::GetDigest>, "GetDigest"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IDeliveryCacheFileService::~IDeliveryCacheFileService() = default;
+
+Result IDeliveryCacheFileService::Open(const DirectoryName& dir_name_raw,
+                                       const FileName& file_name_raw) {
+    const auto dir_name =
+        Common::StringFromFixedZeroTerminatedBuffer(dir_name_raw.data(), dir_name_raw.size());
+    const auto file_name =
+        Common::StringFromFixedZeroTerminatedBuffer(file_name_raw.data(), file_name_raw.size());
+
+    LOG_DEBUG(Service_BCAT, "called, dir_name={}, file_name={}", dir_name, file_name);
+
+    R_TRY(VerifyNameValidDir(dir_name_raw));
+    R_TRY(VerifyNameValidDir(file_name_raw));
+    R_UNLESS(current_file == nullptr, ResultEntityAlreadyOpen);
+
+    const auto dir = root->GetSubdirectory(dir_name);
+    R_UNLESS(dir != nullptr, ResultFailedOpenEntity);
+
+    current_file = dir->GetFile(file_name);
+    R_UNLESS(current_file != nullptr, ResultFailedOpenEntity);
+
+    R_SUCCEED();
+}
+
+Result IDeliveryCacheFileService::Read(Out<u64> out_buffer_size, u64 offset,
+                                       OutBuffer<BufferAttr_HipcMapAlias> out_buffer) {
+    LOG_DEBUG(Service_BCAT, "called, offset={:016X}, size={:016X}", offset, out_buffer.size());
+
+    R_UNLESS(current_file != nullptr, ResultNoOpenEntry);
+
+    *out_buffer_size = std::min<u64>(current_file->GetSize() - offset, out_buffer.size());
+    const auto buffer = current_file->ReadBytes(*out_buffer_size, offset);
+    memcpy(out_buffer.data(), buffer.data(), buffer.size());
+
+    R_SUCCEED();
+}
+
+Result IDeliveryCacheFileService::GetSize(Out<u64> out_size) {
+    LOG_DEBUG(Service_BCAT, "called");
+
+    R_UNLESS(current_file != nullptr, ResultNoOpenEntry);
+
+    *out_size = current_file->GetSize();
+    R_SUCCEED();
+}
+
+Result IDeliveryCacheFileService::GetDigest(Out<BcatDigest> out_digest) {
+    LOG_DEBUG(Service_BCAT, "called");
+
+    R_UNLESS(current_file != nullptr, ResultNoOpenEntry);
+
+    //*out_digest = DigestFile(current_file);
+    R_SUCCEED();
+}
+
+} // namespace Service::BCAT
diff --git a/src/core/hle/service/bcat/delivery_cache_file_service.h b/src/core/hle/service/bcat/delivery_cache_file_service.h
new file mode 100755
index 000000000..e1012e687
--- /dev/null
+++ b/src/core/hle/service/bcat/delivery_cache_file_service.h
@@ -0,0 +1,33 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/file_sys/vfs/vfs.h"
+#include "core/hle/service/bcat/bcat_types.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::BCAT {
+
+class IDeliveryCacheFileService final : public ServiceFramework<IDeliveryCacheFileService> {
+public:
+    explicit IDeliveryCacheFileService(Core::System& system_, FileSys::VirtualDir root_);
+    ~IDeliveryCacheFileService() override;
+
+private:
+    Result Open(const DirectoryName& dir_name_raw, const FileName& file_name_raw);
+    Result Read(Out<u64> out_buffer_size, u64 offset,
+                OutBuffer<BufferAttr_HipcMapAlias> out_buffer);
+    Result GetSize(Out<u64> out_size);
+    Result GetDigest(Out<BcatDigest> out_digest);
+
+    FileSys::VirtualDir root;
+    FileSys::VirtualFile current_file;
+};
+
+} // namespace Service::BCAT
diff --git a/src/core/hle/service/bcat/delivery_cache_progress_service.cpp b/src/core/hle/service/bcat/delivery_cache_progress_service.cpp
new file mode 100755
index 000000000..94d341f7e
--- /dev/null
+++ b/src/core/hle/service/bcat/delivery_cache_progress_service.cpp
@@ -0,0 +1,41 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/hle/service/bcat/bcat_types.h"
+#include "core/hle/service/bcat/delivery_cache_progress_service.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::BCAT {
+
+IDeliveryCacheProgressService::IDeliveryCacheProgressService(Core::System& system_,
+                                                             Kernel::KReadableEvent& event_,
+                                                             const DeliveryCacheProgressImpl& impl_)
+    : ServiceFramework{system_, "IDeliveryCacheProgressService"}, event{event_}, impl{impl_} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, C<&IDeliveryCacheProgressService::GetEvent>, "Get"},
+        {0, C<&IDeliveryCacheProgressService::GetImpl>, "Get"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IDeliveryCacheProgressService::~IDeliveryCacheProgressService() = default;
+
+Result IDeliveryCacheProgressService::GetEvent(OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_DEBUG(Service_BCAT, "called");
+
+    *out_event = &event;
+    R_SUCCEED();
+}
+
+Result IDeliveryCacheProgressService::GetImpl(
+    OutLargeData<DeliveryCacheProgressImpl, BufferAttr_HipcPointer> out_impl) {
+    LOG_DEBUG(Service_BCAT, "called");
+
+    *out_impl = impl;
+    R_SUCCEED();
+}
+
+} // namespace Service::BCAT
diff --git a/src/core/hle/service/bcat/delivery_cache_progress_service.h b/src/core/hle/service/bcat/delivery_cache_progress_service.h
new file mode 100755
index 000000000..f81a13980
--- /dev/null
+++ b/src/core/hle/service/bcat/delivery_cache_progress_service.h
@@ -0,0 +1,35 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Kernel {
+class KEvent;
+class KReadableEvent;
+} // namespace Kernel
+
+namespace Service::BCAT {
+struct DeliveryCacheProgressImpl;
+
+class IDeliveryCacheProgressService final : public ServiceFramework<IDeliveryCacheProgressService> {
+public:
+    explicit IDeliveryCacheProgressService(Core::System& system_, Kernel::KReadableEvent& event_,
+                                           const DeliveryCacheProgressImpl& impl_);
+    ~IDeliveryCacheProgressService() override;
+
+private:
+    Result GetEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
+    Result GetImpl(OutLargeData<DeliveryCacheProgressImpl, BufferAttr_HipcPointer> out_impl);
+
+    Kernel::KReadableEvent& event;
+    const DeliveryCacheProgressImpl& impl;
+};
+
+} // namespace Service::BCAT
diff --git a/src/core/hle/service/bcat/delivery_cache_storage_service.cpp b/src/core/hle/service/bcat/delivery_cache_storage_service.cpp
new file mode 100755
index 000000000..ee4d02307
--- /dev/null
+++ b/src/core/hle/service/bcat/delivery_cache_storage_service.cpp
@@ -0,0 +1,57 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/hle/service/bcat/bcat_result.h"
+#include "core/hle/service/bcat/delivery_cache_directory_service.h"
+#include "core/hle/service/bcat/delivery_cache_file_service.h"
+#include "core/hle/service/bcat/delivery_cache_storage_service.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::BCAT {
+
+IDeliveryCacheStorageService::IDeliveryCacheStorageService(Core::System& system_,
+                                                           FileSys::VirtualDir root_)
+    : ServiceFramework{system_, "IDeliveryCacheStorageService"}, root(std::move(root_)) {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, C<&IDeliveryCacheStorageService::CreateFileService>, "CreateFileService"},
+        {1, C<&IDeliveryCacheStorageService::CreateDirectoryService>, "CreateDirectoryService"},
+        {2, C<&IDeliveryCacheStorageService::EnumerateDeliveryCacheDirectory>, "EnumerateDeliveryCacheDirectory"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IDeliveryCacheStorageService::~IDeliveryCacheStorageService() = default;
+
+Result IDeliveryCacheStorageService::CreateFileService(
+    OutInterface<IDeliveryCacheFileService> out_interface) {
+    LOG_DEBUG(Service_BCAT, "called");
+
+    *out_interface = std::make_shared<IDeliveryCacheFileService>(system, root);
+    R_SUCCEED();
+}
+
+Result IDeliveryCacheStorageService::CreateDirectoryService(
+    OutInterface<IDeliveryCacheDirectoryService> out_interface) {
+    LOG_DEBUG(Service_BCAT, "called");
+
+    *out_interface = std::make_shared<IDeliveryCacheDirectoryService>(system, root);
+    R_SUCCEED();
+}
+
+Result IDeliveryCacheStorageService::EnumerateDeliveryCacheDirectory(
+    Out<s32> out_directory_count,
+    OutArray<DirectoryName, BufferAttr_HipcMapAlias> out_directories) {
+    LOG_DEBUG(Service_BCAT, "called, size={:016X}", out_directories.size());
+
+    *out_directory_count =
+        static_cast<s32>(std::min(out_directories.size(), entries.size() - next_read_index));
+    memcpy(out_directories.data(), entries.data() + next_read_index,
+           *out_directory_count * sizeof(DirectoryName));
+    next_read_index += *out_directory_count;
+    R_SUCCEED();
+}
+
+} // namespace Service::BCAT
diff --git a/src/core/hle/service/bcat/delivery_cache_storage_service.h b/src/core/hle/service/bcat/delivery_cache_storage_service.h
new file mode 100755
index 000000000..3b8dfb1a3
--- /dev/null
+++ b/src/core/hle/service/bcat/delivery_cache_storage_service.h
@@ -0,0 +1,36 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/file_sys/vfs/vfs.h"
+#include "core/hle/service/bcat/bcat_types.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::BCAT {
+class IDeliveryCacheFileService;
+class IDeliveryCacheDirectoryService;
+
+class IDeliveryCacheStorageService final : public ServiceFramework<IDeliveryCacheStorageService> {
+public:
+    explicit IDeliveryCacheStorageService(Core::System& system_, FileSys::VirtualDir root_);
+    ~IDeliveryCacheStorageService() override;
+
+private:
+    Result CreateFileService(OutInterface<IDeliveryCacheFileService> out_interface);
+    Result CreateDirectoryService(OutInterface<IDeliveryCacheDirectoryService> out_interface);
+    Result EnumerateDeliveryCacheDirectory(
+        Out<s32> out_directory_count,
+        OutArray<DirectoryName, BufferAttr_HipcMapAlias> out_directories);
+
+    FileSys::VirtualDir root;
+    std::vector<DirectoryName> entries;
+    std::size_t next_read_index = 0;
+};
+
+} // namespace Service::BCAT
diff --git a/src/core/hle/service/bcat/news/newly_arrived_event_holder.cpp b/src/core/hle/service/bcat/news/newly_arrived_event_holder.cpp
new file mode 100755
index 000000000..5be167fce
--- /dev/null
+++ b/src/core/hle/service/bcat/news/newly_arrived_event_holder.cpp
@@ -0,0 +1,34 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/hle/service/bcat/news/newly_arrived_event_holder.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::News {
+
+INewlyArrivedEventHolder::INewlyArrivedEventHolder(Core::System& system_)
+    : ServiceFramework{system_, "INewlyArrivedEventHolder"}, service_context{
+                                                                 system_,
+                                                                 "INewlyArrivedEventHolder"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, C<&INewlyArrivedEventHolder::Get>, "Get"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+    arrived_event = service_context.CreateEvent("INewlyArrivedEventHolder::ArrivedEvent");
+}
+
+INewlyArrivedEventHolder::~INewlyArrivedEventHolder() {
+    service_context.CloseEvent(arrived_event);
+}
+
+Result INewlyArrivedEventHolder::Get(OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_INFO(Service_BCAT, "called");
+
+    *out_event = &arrived_event->GetReadableEvent();
+    R_SUCCEED();
+}
+
+} // namespace Service::News
diff --git a/src/core/hle/service/bcat/news/newly_arrived_event_holder.h b/src/core/hle/service/bcat/news/newly_arrived_event_holder.h
new file mode 100755
index 000000000..6cc9ae099
--- /dev/null
+++ b/src/core/hle/service/bcat/news/newly_arrived_event_holder.h
@@ -0,0 +1,33 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Kernel {
+class KEvent;
+class KReadableEvent;
+} // namespace Kernel
+
+namespace Service::News {
+
+class INewlyArrivedEventHolder final : public ServiceFramework<INewlyArrivedEventHolder> {
+public:
+    explicit INewlyArrivedEventHolder(Core::System& system_);
+    ~INewlyArrivedEventHolder() override;
+
+private:
+    Result Get(OutCopyHandle<Kernel::KReadableEvent> out_event);
+
+    Kernel::KEvent* arrived_event;
+    KernelHelpers::ServiceContext service_context;
+};
+
+} // namespace Service::News
diff --git a/src/core/hle/service/bcat/news/news_data_service.cpp b/src/core/hle/service/bcat/news/news_data_service.cpp
new file mode 100755
index 000000000..08103c9c3
--- /dev/null
+++ b/src/core/hle/service/bcat/news/news_data_service.cpp
@@ -0,0 +1,25 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/hle/service/bcat/news/news_data_service.h"
+
+namespace Service::News {
+
+INewsDataService::INewsDataService(Core::System& system_)
+    : ServiceFramework{system_, "INewsDataService"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, nullptr, "Open"},
+        {1, nullptr, "OpenWithNewsRecordV1"},
+        {2, nullptr, "Read"},
+        {3, nullptr, "GetSize"},
+        {1001, nullptr, "OpenWithNewsRecord"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+INewsDataService::~INewsDataService() = default;
+
+} // namespace Service::News
diff --git a/src/core/hle/service/bcat/news/news_data_service.h b/src/core/hle/service/bcat/news/news_data_service.h
new file mode 100755
index 000000000..12082ada4
--- /dev/null
+++ b/src/core/hle/service/bcat/news/news_data_service.h
@@ -0,0 +1,20 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::News {
+
+class INewsDataService final : public ServiceFramework<INewsDataService> {
+public:
+    explicit INewsDataService(Core::System& system_);
+    ~INewsDataService() override;
+};
+
+} // namespace Service::News
diff --git a/src/core/hle/service/bcat/news/news_database_service.cpp b/src/core/hle/service/bcat/news/news_database_service.cpp
new file mode 100755
index 000000000..18109f9b0
--- /dev/null
+++ b/src/core/hle/service/bcat/news/news_database_service.cpp
@@ -0,0 +1,35 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/hle/service/bcat/news/news_database_service.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::News {
+
+INewsDatabaseService::INewsDatabaseService(Core::System& system_)
+    : ServiceFramework{system_, "INewsDatabaseService"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, nullptr, "GetListV1"},
+        {1, C<&INewsDatabaseService::Count>, "Count"},
+        {2, nullptr, "CountWithKey"},
+        {3, nullptr, "UpdateIntegerValue"},
+        {4, nullptr, "UpdateIntegerValueWithAddition"},
+        {5, nullptr, "UpdateStringValue"},
+        {1000, nullptr, "GetList"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+INewsDatabaseService::~INewsDatabaseService() = default;
+
+Result INewsDatabaseService::Count(Out<s32> out_count,
+                                   InBuffer<BufferAttr_HipcPointer> buffer_data) {
+    LOG_WARNING(Service_BCAT, "(STUBBED) called, buffer_size={}", buffer_data.size());
+    *out_count = 0;
+    R_SUCCEED();
+}
+
+} // namespace Service::News
diff --git a/src/core/hle/service/bcat/news/news_database_service.h b/src/core/hle/service/bcat/news/news_database_service.h
new file mode 100755
index 000000000..f5916634b
--- /dev/null
+++ b/src/core/hle/service/bcat/news/news_database_service.h
@@ -0,0 +1,24 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::News {
+
+class INewsDatabaseService final : public ServiceFramework<INewsDatabaseService> {
+public:
+    explicit INewsDatabaseService(Core::System& system_);
+    ~INewsDatabaseService() override;
+
+private:
+    Result Count(Out<s32> out_count, InBuffer<BufferAttr_HipcPointer> buffer_data);
+};
+
+} // namespace Service::News
diff --git a/src/core/hle/service/bcat/news/news_service.cpp b/src/core/hle/service/bcat/news/news_service.cpp
new file mode 100755
index 000000000..e19cea7b5
--- /dev/null
+++ b/src/core/hle/service/bcat/news/news_service.cpp
@@ -0,0 +1,46 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/hle/service/bcat/news/news_service.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::News {
+
+INewsService::INewsService(Core::System& system_) : ServiceFramework{system_, "INewsService"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {10100, nullptr, "PostLocalNews"},
+        {20100, nullptr, "SetPassphrase"},
+        {30100, C<&INewsService::GetSubscriptionStatus>, "GetSubscriptionStatus"},
+        {30101, nullptr, "GetTopicList"},
+        {30110, nullptr, "Unknown30110"},
+        {30200, nullptr, "IsSystemUpdateRequired"},
+        {30201, nullptr, "Unknown30201"},
+        {30210, nullptr, "Unknown30210"},
+        {30300, nullptr, "RequestImmediateReception"},
+        {30400, nullptr, "DecodeArchiveFile"},
+        {30500, nullptr, "Unknown30500"},
+        {30900, nullptr, "Unknown30900"},
+        {30901, nullptr, "Unknown30901"},
+        {30902, nullptr, "Unknown30902"},
+        {40100, nullptr, "SetSubscriptionStatus"},
+        {40101, nullptr, "RequestAutoSubscription"},
+        {40200, nullptr, "ClearStorage"},
+        {40201, nullptr, "ClearSubscriptionStatusAll"},
+        {90100, nullptr, "GetNewsDatabaseDump"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+INewsService::~INewsService() = default;
+
+Result INewsService::GetSubscriptionStatus(Out<u32> out_status,
+                                           InBuffer<BufferAttr_HipcPointer> buffer_data) {
+    LOG_WARNING(Service_BCAT, "(STUBBED) called, buffer_size={}", buffer_data.size());
+    *out_status = 0;
+    R_SUCCEED();
+}
+
+} // namespace Service::News
diff --git a/src/core/hle/service/bcat/news/news_service.h b/src/core/hle/service/bcat/news/news_service.h
new file mode 100755
index 000000000..8d06be9d6
--- /dev/null
+++ b/src/core/hle/service/bcat/news/news_service.h
@@ -0,0 +1,24 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::News {
+
+class INewsService final : public ServiceFramework<INewsService> {
+public:
+    explicit INewsService(Core::System& system_);
+    ~INewsService() override;
+
+private:
+    Result GetSubscriptionStatus(Out<u32> out_status, InBuffer<BufferAttr_HipcPointer> buffer_data);
+};
+
+} // namespace Service::News
diff --git a/src/core/hle/service/bcat/news/overwrite_event_holder.cpp b/src/core/hle/service/bcat/news/overwrite_event_holder.cpp
new file mode 100755
index 000000000..c32a5ca8f
--- /dev/null
+++ b/src/core/hle/service/bcat/news/overwrite_event_holder.cpp
@@ -0,0 +1,33 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/hle/service/bcat/news/overwrite_event_holder.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::News {
+
+IOverwriteEventHolder::IOverwriteEventHolder(Core::System& system_)
+    : ServiceFramework{system_, "IOverwriteEventHolder"}, service_context{system_,
+                                                                          "IOverwriteEventHolder"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, C<&IOverwriteEventHolder::Get>, "Get"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+    overwrite_event = service_context.CreateEvent("IOverwriteEventHolder::OverwriteEvent");
+}
+
+IOverwriteEventHolder::~IOverwriteEventHolder() {
+    service_context.CloseEvent(overwrite_event);
+}
+
+Result IOverwriteEventHolder::Get(OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_INFO(Service_BCAT, "called");
+
+    *out_event = &overwrite_event->GetReadableEvent();
+    R_SUCCEED();
+}
+
+} // namespace Service::News
diff --git a/src/core/hle/service/bcat/news/overwrite_event_holder.h b/src/core/hle/service/bcat/news/overwrite_event_holder.h
new file mode 100755
index 000000000..cdc87d782
--- /dev/null
+++ b/src/core/hle/service/bcat/news/overwrite_event_holder.h
@@ -0,0 +1,33 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Kernel {
+class KEvent;
+class KReadableEvent;
+} // namespace Kernel
+
+namespace Service::News {
+
+class IOverwriteEventHolder final : public ServiceFramework<IOverwriteEventHolder> {
+public:
+    explicit IOverwriteEventHolder(Core::System& system_);
+    ~IOverwriteEventHolder() override;
+
+private:
+    Result Get(OutCopyHandle<Kernel::KReadableEvent> out_event);
+
+    Kernel::KEvent* overwrite_event;
+    KernelHelpers::ServiceContext service_context;
+};
+
+} // namespace Service::News
diff --git a/src/core/hle/service/bcat/news/service_creator.cpp b/src/core/hle/service/bcat/news/service_creator.cpp
new file mode 100755
index 000000000..d5ba5dff7
--- /dev/null
+++ b/src/core/hle/service/bcat/news/service_creator.cpp
@@ -0,0 +1,64 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/hle/service/bcat/news/newly_arrived_event_holder.h"
+#include "core/hle/service/bcat/news/news_data_service.h"
+#include "core/hle/service/bcat/news/news_database_service.h"
+#include "core/hle/service/bcat/news/news_service.h"
+#include "core/hle/service/bcat/news/overwrite_event_holder.h"
+#include "core/hle/service/bcat/news/service_creator.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::News {
+
+IServiceCreator::IServiceCreator(Core::System& system_, u32 permissions_, const char* name_)
+    : ServiceFramework{system_, name_}, permissions{permissions_} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, C<&IServiceCreator::CreateNewsService>, "CreateNewsService"},
+        {1, C<&IServiceCreator::CreateNewlyArrivedEventHolder>, "CreateNewlyArrivedEventHolder"},
+        {2, C<&IServiceCreator::CreateNewsDataService>, "CreateNewsDataService"},
+        {3, C<&IServiceCreator::CreateNewsDatabaseService>, "CreateNewsDatabaseService"},
+        {4, C<&IServiceCreator::CreateOverwriteEventHolder>, "CreateOverwriteEventHolder"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IServiceCreator::~IServiceCreator() = default;
+
+Result IServiceCreator::CreateNewsService(OutInterface<INewsService> out_interface) {
+    LOG_INFO(Service_BCAT, "called");
+    *out_interface = std::make_shared<INewsService>(system);
+    R_SUCCEED();
+}
+
+Result IServiceCreator::CreateNewlyArrivedEventHolder(
+    OutInterface<INewlyArrivedEventHolder> out_interface) {
+    LOG_INFO(Service_BCAT, "called");
+    *out_interface = std::make_shared<INewlyArrivedEventHolder>(system);
+    R_SUCCEED();
+}
+
+Result IServiceCreator::CreateNewsDataService(OutInterface<INewsDataService> out_interface) {
+    LOG_INFO(Service_BCAT, "called");
+    *out_interface = std::make_shared<INewsDataService>(system);
+    R_SUCCEED();
+}
+
+Result IServiceCreator::CreateNewsDatabaseService(
+    OutInterface<INewsDatabaseService> out_interface) {
+    LOG_INFO(Service_BCAT, "called");
+    *out_interface = std::make_shared<INewsDatabaseService>(system);
+    R_SUCCEED();
+}
+
+Result IServiceCreator::CreateOverwriteEventHolder(
+    OutInterface<IOverwriteEventHolder> out_interface) {
+    LOG_INFO(Service_BCAT, "called");
+    *out_interface = std::make_shared<IOverwriteEventHolder>(system);
+    R_SUCCEED();
+}
+
+} // namespace Service::News
diff --git a/src/core/hle/service/bcat/news/service_creator.h b/src/core/hle/service/bcat/news/service_creator.h
new file mode 100755
index 000000000..5a62e7c1a
--- /dev/null
+++ b/src/core/hle/service/bcat/news/service_creator.h
@@ -0,0 +1,35 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::News {
+class INewsService;
+class INewlyArrivedEventHolder;
+class INewsDataService;
+class INewsDatabaseService;
+class IOverwriteEventHolder;
+
+class IServiceCreator final : public ServiceFramework<IServiceCreator> {
+public:
+    explicit IServiceCreator(Core::System& system_, u32 permissions_, const char* name_);
+    ~IServiceCreator() override;
+
+private:
+    Result CreateNewsService(OutInterface<INewsService> out_interface);
+    Result CreateNewlyArrivedEventHolder(OutInterface<INewlyArrivedEventHolder> out_interface);
+    Result CreateNewsDataService(OutInterface<INewsDataService> out_interface);
+    Result CreateNewsDatabaseService(OutInterface<INewsDatabaseService> out_interface);
+    Result CreateOverwriteEventHolder(OutInterface<IOverwriteEventHolder> out_interface);
+
+    u32 permissions;
+};
+
+} // namespace Service::News
diff --git a/src/core/hle/service/bcat/service_creator.cpp b/src/core/hle/service/bcat/service_creator.cpp
new file mode 100755
index 000000000..a3c5eee04
--- /dev/null
+++ b/src/core/hle/service/bcat/service_creator.cpp
@@ -0,0 +1,62 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/bcat/bcat_service.h"
+#include "core/hle/service/bcat/delivery_cache_storage_service.h"
+#include "core/hle/service/bcat/service_creator.h"
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/filesystem/filesystem.h"
+
+namespace Service::BCAT {
+
+std::unique_ptr<BcatBackend> CreateBackendFromSettings([[maybe_unused]] Core::System& system,
+                                                       DirectoryGetter getter) {
+    return std::make_unique<NullBcatBackend>(std::move(getter));
+}
+
+IServiceCreator::IServiceCreator(Core::System& system_, const char* name_)
+    : ServiceFramework{system_, name_}, fsc{system.GetFileSystemController()} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, C<&IServiceCreator::CreateBcatService>, "CreateBcatService"},
+        {1, C<&IServiceCreator::CreateDeliveryCacheStorageService>, "CreateDeliveryCacheStorageService"},
+        {2, C<&IServiceCreator::CreateDeliveryCacheStorageServiceWithApplicationId>, "CreateDeliveryCacheStorageServiceWithApplicationId"},
+        {3, nullptr, "CreateDeliveryCacheProgressService"},
+        {4, nullptr, "CreateDeliveryCacheProgressServiceWithApplicationId"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+
+    backend =
+        CreateBackendFromSettings(system_, [this](u64 tid) { return fsc.GetBCATDirectory(tid); });
+}
+
+IServiceCreator::~IServiceCreator() = default;
+
+Result IServiceCreator::CreateBcatService(ClientProcessId process_id,
+                                          OutInterface<IBcatService> out_interface) {
+    LOG_INFO(Service_BCAT, "called, process_id={}", process_id.pid);
+    *out_interface = std::make_shared<IBcatService>(system, *backend);
+    R_SUCCEED();
+}
+
+Result IServiceCreator::CreateDeliveryCacheStorageService(
+    ClientProcessId process_id, OutInterface<IDeliveryCacheStorageService> out_interface) {
+    LOG_INFO(Service_BCAT, "called, process_id={}", process_id.pid);
+
+    const auto title_id = system.GetApplicationProcessProgramID();
+    *out_interface =
+        std::make_shared<IDeliveryCacheStorageService>(system, fsc.GetBCATDirectory(title_id));
+    R_SUCCEED();
+}
+
+Result IServiceCreator::CreateDeliveryCacheStorageServiceWithApplicationId(
+    u64 application_id, OutInterface<IDeliveryCacheStorageService> out_interface) {
+    LOG_DEBUG(Service_BCAT, "called, application_id={:016X}", application_id);
+    *out_interface = std::make_shared<IDeliveryCacheStorageService>(
+        system, fsc.GetBCATDirectory(application_id));
+    R_SUCCEED();
+}
+
+} // namespace Service::BCAT
diff --git a/src/core/hle/service/bcat/service_creator.h b/src/core/hle/service/bcat/service_creator.h
new file mode 100755
index 000000000..50e663324
--- /dev/null
+++ b/src/core/hle/service/bcat/service_creator.h
@@ -0,0 +1,40 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::FileSystem {
+class FileSystemController;
+}
+
+namespace Service::BCAT {
+class BcatBackend;
+class IBcatService;
+class IDeliveryCacheStorageService;
+
+class IServiceCreator final : public ServiceFramework<IServiceCreator> {
+public:
+    explicit IServiceCreator(Core::System& system_, const char* name_);
+    ~IServiceCreator() override;
+
+private:
+    Result CreateBcatService(ClientProcessId process_id, OutInterface<IBcatService> out_interface);
+
+    Result CreateDeliveryCacheStorageService(
+        ClientProcessId process_id, OutInterface<IDeliveryCacheStorageService> out_interface);
+
+    Result CreateDeliveryCacheStorageServiceWithApplicationId(
+        u64 application_id, OutInterface<IDeliveryCacheStorageService> out_interface);
+
+    std::unique_ptr<BcatBackend> backend;
+    Service::FileSystem::FileSystemController& fsc;
+};
+
+} // namespace Service::BCAT
diff --git a/src/core/hle/service/service.cpp b/src/core/hle/service/service.cpp
index e47929bf8..87e8eeed8 100755
--- a/src/core/hle/service/service.cpp
+++ b/src/core/hle/service/service.cpp
@@ -15,7 +15,7 @@
 #include "core/hle/service/aoc/aoc_u.h"

 #include "core/hle/service/apm/apm.h"

 #include "core/hle/service/audio/audio.h"

-#include "core/hle/service/bcat/bcat_module.h"

+#include "core/hle/service/bcat/bcat.h"

 #include "core/hle/service/bpc/bpc.h"

 #include "core/hle/service/btdrv/btdrv.h"

 #include "core/hle/service/btm/btm.h"