Add an empty ssl service implementation

This stubs a single function that is needed for SMO's init.

app/CMakeLists.txt

@@ -123,6 +123,7 @@ add_library(skyline SHARED
         ${source_DIR}/skyline/services/nifm/IGeneralService.cpp
         ${source_DIR}/skyline/services/nifm/IRequest.cpp
         ${source_DIR}/skyline/services/socket/bsd/IClient.cpp
+        ${source_DIR}/skyline/services/ssl/ISslService.cpp
         ${source_DIR}/skyline/vfs/partition_filesystem.cpp
         ${source_DIR}/skyline/vfs/rom_filesystem.cpp
         ${source_DIR}/skyline/vfs/os_backing.cpp

app/src/main/cpp/skyline/services/base_service.h

@@ -79,6 +79,7 @@ namespace skyline::service {
         nifm_IGeneralService,
         nifm_IRequest,
         socket_IClient,
+        ssl_ISslService,
     };
 
     /**
@@ -117,6 +118,7 @@ namespace skyline::service {
         {"nfp:user", Service::nfp_IUserManager},
         {"nifm:u", Service::nifm_IStaticService},
         {"bsd:u", Service::socket_IClient},
+        {"ssl", Service::ssl_ISslService},
     };
 
     class ServiceManager;

app/src/main/cpp/skyline/services/serviceman.cpp

@@ -25,6 +25,7 @@
 #include "nfp/IUserManager.h"
 #include "nifm/IStaticService.h"
 #include "socket/bsd/IClient.h"
+#include "ssl/ISslService.h"
 #include "serviceman.h"
 
 namespace skyline::service {
@@ -106,6 +107,9 @@ namespace skyline::service {
             case Service::socket_IClient:
                 serviceObj = std::make_shared<socket::IClient>(state, *this);
                 break;
+            case Service::ssl_ISslService:
+                serviceObj = std::make_shared<ssl::ISslService>(state, *this);
+                break;
             default:
                 throw exception("CreateService called on missing object, type: {}", serviceType);
         }

app/src/main/cpp/skyline/services/ssl/ISslService.cpp

@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: MPL-2.0
+// Copyright © 2020 Skyline Team and Contributors (https://github.com/skyline-emu/)
+
+#include "ISslService.h"
+
+namespace skyline::service::ssl {
+    ISslService::ISslService(const DeviceState &state, ServiceManager &manager) : BaseService(state, manager, Service::ssl_ISslService, "ssl:ISslService", {
+        {0x5, SFUNC(ISslService::SetInterfaceVersion)}
+    }) {}
+
+    void ISslService::SetInterfaceVersion(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response) {}
+}

app/src/main/cpp/skyline/services/ssl/ISslService.h

@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: MPL-2.0
+// Copyright © 2020 Skyline Team and Contributors (https://github.com/skyline-emu/)
+
+#pragma once
+
+#include <services/base_service.h>
+#include <services/serviceman.h>
+
+namespace skyline::service::ssl {
+    /**
+     * @brief ISslService or ssl is used by applications to manage SSL connections (https://switchbrew.org/wiki/SSL_services#ssl)
+     */
+    class ISslService : public BaseService {
+      public:
+        ISslService(const DeviceState &state, ServiceManager &manager);
+
+        /**
+         * @brief This sets the SSL interface version (https://switchbrew.org/wiki/SSL_services#SetInterfaceVersion)
+         */
+        void SetInterfaceVersion(type::KSession &session, ipc::IpcRequest &request, ipc::IpcResponse &response);
+    };
+}