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// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <tuple>
#include "common/assert.h"
#include "common/scope_exit.h"
#include "core/core.h"
#include "core/hle/ipc_helpers.h"
#include "core/hle/kernel/k_client_port.h"
#include "core/hle/kernel/k_client_session.h"
#include "core/hle/kernel/k_port.h"
#include "core/hle/kernel/k_scoped_resource_reservation.h"
#include "core/hle/kernel/k_server_port.h"
#include "core/hle/result.h"
#include "core/hle/service/server_manager.h"
#include "core/hle/service/sm/sm.h"
#include "core/hle/service/sm/sm_controller.h"
namespace Service::SM {
constexpr Result ERR_NOT_INITIALIZED(ErrorModule::SM, 2);
constexpr Result ERR_ALREADY_REGISTERED(ErrorModule::SM, 4);
constexpr Result ERR_INVALID_NAME(ErrorModule::SM, 6);
constexpr Result ERR_SERVICE_NOT_REGISTERED(ErrorModule::SM, 7);
ServiceManager::ServiceManager(Kernel::KernelCore& kernel_) : kernel{kernel_} {
controller_interface = std::make_unique<Controller>(kernel.System());
}
ServiceManager::~ServiceManager() {
for (auto& [name, port] : service_ports) {
port->GetClientPort().Close();
port->GetServerPort().Close();
}
}
void ServiceManager::InvokeControlRequest(Kernel::HLERequestContext& context) {
controller_interface->InvokeRequest(context);
}
static Result ValidateServiceName(const std::string& name) {
if (name.empty() || name.size() > 8) {
LOG_ERROR(Service_SM, "Invalid service name! service={}", name);
return ERR_INVALID_NAME;
}
return ResultSuccess;
}
Result ServiceManager::RegisterService(std::string name, u32 max_sessions,
Kernel::SessionRequestHandlerPtr handler) {
CASCADE_CODE(ValidateServiceName(name));
std::scoped_lock lk{lock};
if (registered_services.find(name) != registered_services.end()) {
LOG_ERROR(Service_SM, "Service is already registered! service={}", name);
return ERR_ALREADY_REGISTERED;
}
auto* port = Kernel::KPort::Create(kernel);
port->Initialize(ServerSessionCountMax, false, name);
service_ports.emplace(name, port);
registered_services.emplace(name, handler);
return ResultSuccess;
}
Result ServiceManager::UnregisterService(const std::string& name) {
CASCADE_CODE(ValidateServiceName(name));
std::scoped_lock lk{lock};
const auto iter = registered_services.find(name);
if (iter == registered_services.end()) {
LOG_ERROR(Service_SM, "Server is not registered! service={}", name);
return ERR_SERVICE_NOT_REGISTERED;
}
registered_services.erase(iter);
service_ports.erase(name);
return ResultSuccess;
}
ResultVal<Kernel::KPort*> ServiceManager::GetServicePort(const std::string& name) {
CASCADE_CODE(ValidateServiceName(name));
std::scoped_lock lk{lock};
auto it = service_ports.find(name);
if (it == service_ports.end()) {
LOG_ERROR(Service_SM, "Server is not registered! service={}", name);
return ERR_SERVICE_NOT_REGISTERED;
}
return it->second;
}
/**
* SM::Initialize service function
* Inputs:
* 0: 0x00000000
* Outputs:
* 0: Result
*/
void SM::Initialize(Kernel::HLERequestContext& ctx) {
LOG_DEBUG(Service_SM, "called");
is_initialized = true;
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultSuccess);
}
void SM::GetService(Kernel::HLERequestContext& ctx) {
auto result = GetServiceImpl(ctx);
if (result.Succeeded()) {
IPC::ResponseBuilder rb{ctx, 2, 0, 1, IPC::ResponseBuilder::Flags::AlwaysMoveHandles};
rb.Push(result.Code());
rb.PushMoveObjects(result.Unwrap());
} else {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result.Code());
}
}
void SM::GetServiceTipc(Kernel::HLERequestContext& ctx) {
auto result = GetServiceImpl(ctx);
IPC::ResponseBuilder rb{ctx, 2, 0, 1, IPC::ResponseBuilder::Flags::AlwaysMoveHandles};
rb.Push(result.Code());
rb.PushMoveObjects(result.Succeeded() ? result.Unwrap() : nullptr);
}
static std::string PopServiceName(IPC::RequestParser& rp) {
auto name_buf = rp.PopRaw<std::array<char, 8>>();
std::string result;
for (const auto& c : name_buf) {
if (c >= ' ' && c <= '~') {
result.push_back(c);
}
}
return result;
}
ResultVal<Kernel::KClientSession*> SM::GetServiceImpl(Kernel::HLERequestContext& ctx) {
if (!is_initialized) {
return ERR_NOT_INITIALIZED;
}
IPC::RequestParser rp{ctx};
std::string name(PopServiceName(rp));
// Find the named port.
auto port_result = service_manager.GetServicePort(name);
if (port_result.Failed()) {
LOG_ERROR(Service_SM, "called service={} -> error 0x{:08X}", name, port_result.Code().raw);
return port_result.Code();
}
auto& port = port_result.Unwrap();
// Create a new session.
Kernel::KClientSession* session{};
if (const auto result = port->GetClientPort().CreateSession(&session); result.IsError()) {
LOG_ERROR(Service_SM, "called service={} -> error 0x{:08X}", name, result.raw);
return result;
}
LOG_DEBUG(Service_SM, "called service={} -> session={}", name, session->GetId());
return session;
}
void SM::RegisterService(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
std::string name(PopServiceName(rp));
const auto is_light = static_cast<bool>(rp.PopRaw<u32>());
const auto max_session_count = rp.PopRaw<u32>();
LOG_DEBUG(Service_SM, "called with name={}, max_session_count={}, is_light={}", name,
max_session_count, is_light);
if (const auto result = service_manager.RegisterService(name, max_session_count, nullptr);
result.IsError()) {
LOG_ERROR(Service_SM, "failed to register service with error_code={:08X}", result.raw);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result);
return;
}
auto* port = Kernel::KPort::Create(kernel);
port->Initialize(ServerSessionCountMax, is_light, name);
SCOPE_EXIT({ port->GetClientPort().Close(); });
IPC::ResponseBuilder rb{ctx, 2, 0, 1, IPC::ResponseBuilder::Flags::AlwaysMoveHandles};
rb.Push(ResultSuccess);
rb.PushMoveObjects(port->GetServerPort());
}
void SM::UnregisterService(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
std::string name(PopServiceName(rp));
LOG_DEBUG(Service_SM, "called with name={}", name);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(service_manager.UnregisterService(name));
}
SM::SM(ServiceManager& service_manager_, Core::System& system_)
: ServiceFramework{system_, "sm:", 4},
service_manager{service_manager_}, kernel{system_.Kernel()} {
RegisterHandlers({
{0, &SM::Initialize, "Initialize"},
{1, &SM::GetService, "GetService"},
{2, &SM::RegisterService, "RegisterService"},
{3, &SM::UnregisterService, "UnregisterService"},
{4, nullptr, "DetachClient"},
});
RegisterHandlersTipc({
{0, &SM::Initialize, "Initialize"},
{1, &SM::GetServiceTipc, "GetService"},
{2, &SM::RegisterService, "RegisterService"},
{3, &SM::UnregisterService, "UnregisterService"},
{4, nullptr, "DetachClient"},
});
}
SM::~SM() = default;
void LoopProcess(Core::System& system) {
auto server_manager = std::make_unique<ServerManager>(system);
server_manager->ManageNamedPort("sm:", std::make_shared<SM>(system.ServiceManager(), system));
ServerManager::RunServer(std::move(server_manager));
}
} // namespace Service::SM
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