hle: Initial implementation of NX service framework and IPC.

src/core/hle/service/sm/sm.cpp

@@ -4,16 +4,21 @@
 
 #include <tuple>
 #include "common/assert.h"
+#include "core/hle/ipc_helpers.h"
 #include "core/hle/kernel/client_port.h"
 #include "core/hle/kernel/client_session.h"
 #include "core/hle/kernel/server_port.h"
 #include "core/hle/result.h"
+#include "core/hle/service/sm/controller.h"
 #include "core/hle/service/sm/sm.h"
-#include "core/hle/service/sm/srv.h"
 
 namespace Service {
 namespace SM {
 
+void ServiceManager::InvokeControlRequest(Kernel::HLERequestContext& context) {
+    controller_interface->InvokeRequest(context);
+}
+
 static ResultCode ValidateServiceName(const std::string& name) {
     if (name.size() <= 0 || name.size() > 8) {
         return ERR_INVALID_NAME_SIZE;
@@ -25,11 +30,12 @@ static ResultCode ValidateServiceName(const std::string& name) {
 }
 
 void ServiceManager::InstallInterfaces(std::shared_ptr<ServiceManager> self) {
-    ASSERT(self->srv_interface.expired());
+    ASSERT(self->sm_interface.expired());
 
-    auto srv = std::make_shared<SRV>(self);
-    srv->InstallAsNamedPort();
-    self->srv_interface = srv;
+    auto sm = std::make_shared<SM>(self);
+    sm->InstallAsNamedPort();
+    self->sm_interface = sm;
+    self->controller_interface = std::make_unique<Controller>();
 }
 
 ResultVal<Kernel::SharedPtr<Kernel::ServerPort>> ServiceManager::RegisterService(
@@ -69,5 +75,80 @@ ResultVal<Kernel::SharedPtr<Kernel::ClientSession>> ServiceManager::ConnectToSer
 
 std::shared_ptr<ServiceManager> g_service_manager;
 
+/**
+ * SM::Initialize service function
+ *  Inputs:
+ *      0: 0x00000000
+ *  Outputs:
+ *      1: ResultCode
+ */
+void SM::Initialize(Kernel::HLERequestContext& ctx) {
+    IPC::RequestBuilder rb{ctx, 1};
+    rb.Push(RESULT_SUCCESS);
+    LOG_DEBUG(Service_SM, "called");
+}
+
+/**
+ * SM::GetServiceHandle service function
+ *  Inputs:
+ *      0: 0x00000001
+ *      1: Unknown
+ *      2: Unknown
+ *      3-4: 8-byte UTF-8 service name
+ *  Outputs:
+ *      1: ResultCode
+ *      3: Service handle
+ */
+void SM::GetService(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    u32 unk1 = rp.Pop<u32>();
+    u32 unk2 = rp.Pop<u32>();
+    auto name_buf = rp.PopRaw<std::array<char, 6>>();
+    std::string name(name_buf.data());
+
+    // TODO(yuriks): Permission checks go here
+
+    auto client_port = service_manager->GetServicePort(name);
+    if (client_port.Failed()) {
+        IPC::RequestBuilder rb = rp.MakeBuilder(1, 0, 0);
+        rb.Push(client_port.Code());
+        LOG_ERROR(Service_SM, "called service=%s -> error 0x%08X", name.c_str(),
+                  client_port.Code().raw);
+        return;
+    }
+
+    auto session = client_port.Unwrap()->Connect();
+    if (session.Succeeded()) {
+        LOG_DEBUG(Service_SM, "called service=%s -> session=%u", name.c_str(),
+                  (*session)->GetObjectId());
+        IPC::RequestBuilder rb = rp.MakeBuilder(1, 0, 1);
+        rb.Push(session.Code());
+        rb.PushObjects(std::move(session).Unwrap());
+    } else if (session.Code() == Kernel::ERR_MAX_CONNECTIONS_REACHED /*&& return_port_on_failure*/) {
+        LOG_WARNING(Service_SM, "called service=%s -> ERR_MAX_CONNECTIONS_REACHED, *port*=%u",
+                    name.c_str(), (*client_port)->GetObjectId());
+        IPC::RequestBuilder rb = rp.MakeBuilder(1, 0, 1);
+        rb.Push(ERR_MAX_CONNECTIONS_REACHED);
+        rb.PushObjects(std::move(client_port).Unwrap());
+    } else {
+        LOG_ERROR(Service_SM, "called service=%s -> error 0x%08X", name.c_str(), session.Code());
+        IPC::RequestBuilder rb = rp.MakeBuilder(1, 0, 0);
+        rb.Push(session.Code());
+    }
+}
+
+SM::SM(std::shared_ptr<ServiceManager> service_manager)
+    : ServiceFramework("sm:", 4), service_manager(std::move(service_manager)) {
+    static const FunctionInfo functions[] = {
+        {0x00000000, &SM::Initialize, "Initialize"},
+        {0x00000001, &SM::GetService, "GetService"},
+        {0x00000002, nullptr, "RegisterService"},
+        {0x00000003, nullptr, "UnregisterService"},
+    };
+    RegisterHandlers(functions);
+}
+
+SM::~SM() = default;
+
 } // namespace SM
 } // namespace Service