4 files changed, 162 insertions, 0 deletions
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 7a67439fd..2632c3b80 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -158,6 +158,8 @@ add_library(core STATIC
     hle/service/friend/interface.h
     hle/service/hid/hid.cpp
     hle/service/hid/hid.h
+    hle/service/ldn/ldn.cpp
+    hle/service/ldn/ldn.h
     hle/service/ldr/ldr.cpp
     hle/service/ldr/ldr.h
     hle/service/lm/lm.cpp
diff --git a/src/core/hle/service/ldn/ldn.cpp b/src/core/hle/service/ldn/ldn.cpp
new file mode 100644
index 000000000..167f2c66a
--- /dev/null
+++ b/src/core/hle/service/ldn/ldn.cpp
@@ -0,0 +1,142 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <memory>
+
+#include "core/hle/ipc_helpers.h"
+#include "core/hle/result.h"
+#include "core/hle/service/ldn/ldn.h"
+#include "core/hle/service/sm/sm.h"
+
+namespace Service::LDN {
+
+class IMonitorService final : public ServiceFramework<IMonitorService> {
+public:
+    explicit IMonitorService() : ServiceFramework{"IMonitorService"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "GetStateForMonitor"},
+            {1, nullptr, "GetNetworkInfoForMonitor"},
+            {2, nullptr, "GetIpv4AddressForMonitor"},
+            {3, nullptr, "GetDisconnectReasonForMonitor"},
+            {4, nullptr, "GetSecurityParameterForMonitor"},
+            {5, nullptr, "GetNetworkConfigForMonitor"},
+            {100, nullptr, "InitializeMonitor"},
+            {101, nullptr, "FinalizeMonitor"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
+class LDNM final : public ServiceFramework<LDNM> {
+public:
+    explicit LDNM() : ServiceFramework{"ldn:m"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &LDNM::CreateMonitorService, "CreateMonitorService"}
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+
+    void CreateMonitorService(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushIpcInterface<IMonitorService>();
+
+        LOG_DEBUG(Service_LDN, "called");
+    }
+};
+
+class ILocalCommunicationService final : public ServiceFramework<ILocalCommunicationService> {
+public:
+    explicit ILocalCommunicationService(const char* name) : ServiceFramework{name} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "GetState"},
+            {1, nullptr, "GetNetworkInfo"},
+            {2, nullptr, "GetIpv4Address"},
+            {3, nullptr, "GetDisconnectReason"},
+            {4, nullptr, "GetSecurityParameter"},
+            {5, nullptr, "GetNetworkConfig"},
+            {100, nullptr, "AttachStateChangeEvent"},
+            {101, nullptr, "GetNetworkInfoLatestUpdate"},
+            {102, nullptr, "Scan"},
+            {103, nullptr, "ScanPrivate"},
+            {200, nullptr, "OpenAccessPoint"},
+            {201, nullptr, "CloseAccessPoint"},
+            {202, nullptr, "CreateNetwork"},
+            {203, nullptr, "CreateNetworkPrivate"},
+            {204, nullptr, "DestroyNetwork"},
+            {205, nullptr, "Reject"},
+            {206, nullptr, "SetAdvertiseData"},
+            {207, nullptr, "SetStationAcceptPolicy"},
+            {208, nullptr, "AddAcceptFilterEntry"},
+            {209, nullptr, "ClearAcceptFilter"},
+            {300, nullptr, "OpenStation"},
+            {301, nullptr, "CloseStation"},
+            {302, nullptr, "Connect"},
+            {303, nullptr, "ConnectPrivate"},
+            {304, nullptr, "Disconnect"},
+            {400, nullptr, "InitializeSystem"},
+            {401, nullptr, "FinalizeSystem"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
+class LDNS final : public ServiceFramework<LDNS> {
+public:
+    explicit LDNS() : ServiceFramework{"ldn:s"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &LDNS::CreateSystemLocalCommunicationService, "CreateSystemLocalCommunicationService"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+
+    void CreateSystemLocalCommunicationService(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushIpcInterface<ILocalCommunicationService>("ISystemLocalCommunicationService");
+
+        LOG_DEBUG(Service_LDN, "called");
+    }
+};
+
+class LDNU final : public ServiceFramework<LDNU> {
+public:
+    explicit LDNU() : ServiceFramework{"ldn:u"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &LDNU::CreateUserLocalCommunicationService, "CreateUserLocalCommunicationService"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+
+    void CreateUserLocalCommunicationService(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+        rb.Push(RESULT_SUCCESS);
+        rb.PushIpcInterface<ILocalCommunicationService>("IUserLocalCommunicationService");
+
+        LOG_DEBUG(Service_LDN, "called");
+    }
+};
+
+void InstallInterfaces(SM::ServiceManager& sm) {
+    std::make_shared<LDNM>()->InstallAsService(sm);
+    std::make_shared<LDNS>()->InstallAsService(sm);
+    std::make_shared<LDNU>()->InstallAsService(sm);
+}
+
+} // namespace Service::LDN
diff --git a/src/core/hle/service/ldn/ldn.h b/src/core/hle/service/ldn/ldn.h
new file mode 100644
index 000000000..6b2a3c2b2
--- /dev/null
+++ b/src/core/hle/service/ldn/ldn.h
@@ -0,0 +1,16 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+namespace Service::SM {
+class ServiceManager;
+}
+
+namespace Service::LDN {
+
+/// Registers all LDN services with the specified service manager.
+void InstallInterfaces(SM::ServiceManager& sm);
+
+} // namespace Service::LDN
diff --git a/src/core/hle/service/service.cpp b/src/core/hle/service/service.cpp
index 482989ea7..1e24d33e2 100644
--- a/src/core/hle/service/service.cpp
+++ b/src/core/hle/service/service.cpp
@@ -28,6 +28,7 @@
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/friend/friend.h"
 #include "core/hle/service/hid/hid.h"
+#include "core/hle/service/ldn/ldn.h"
 #include "core/hle/service/ldr/ldr.h"
 #include "core/hle/service/lm/lm.h"
 #include "core/hle/service/mm/mm_u.h"
@@ -199,6 +200,7 @@ void Init(std::shared_ptr<SM::ServiceManager>& sm) {
     FileSystem::InstallInterfaces(*sm);
     Friend::InstallInterfaces(*sm);
     HID::InstallInterfaces(*sm);
+    LDN::InstallInterfaces(*sm);
     LDR::InstallInterfaces(*sm);
     LM::InstallInterfaces(*sm);
     MM::InstallInterfaces(*sm);