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// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <tuple>
#include "common/assert.h"
#include "core/core.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"
namespace Service::SM {
constexpr ResultCode ERR_ALREADY_REGISTERED(ErrorModule::SM, 4);
constexpr ResultCode ERR_INVALID_NAME(ErrorModule::SM, 6);
constexpr ResultCode ERR_SERVICE_NOT_REGISTERED(ErrorModule::SM, 7);
ServiceManager::ServiceManager() = default;
ServiceManager::~ServiceManager() = default;
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;
}
if (name.find('\0') != std::string::npos) {
return ERR_INVALID_NAME;
}
return RESULT_SUCCESS;
}
void ServiceManager::InstallInterfaces(std::shared_ptr<ServiceManager> self) {
ASSERT(self->sm_interface.expired());
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(
std::string name, unsigned int max_sessions) {
CASCADE_CODE(ValidateServiceName(name));
if (registered_services.find(name) != registered_services.end())
return ERR_ALREADY_REGISTERED;
auto& kernel = Core::System::GetInstance().Kernel();
Kernel::SharedPtr<Kernel::ServerPort> server_port;
Kernel::SharedPtr<Kernel::ClientPort> client_port;
std::tie(server_port, client_port) =
Kernel::ServerPort::CreatePortPair(kernel, max_sessions, name);
registered_services.emplace(std::move(name), std::move(client_port));
return MakeResult<Kernel::SharedPtr<Kernel::ServerPort>>(std::move(server_port));
}
ResultCode ServiceManager::UnregisterService(const std::string& name) {
CASCADE_CODE(ValidateServiceName(name));
const auto iter = registered_services.find(name);
if (iter == registered_services.end())
return ERR_SERVICE_NOT_REGISTERED;
registered_services.erase(iter);
return RESULT_SUCCESS;
}
ResultVal<Kernel::SharedPtr<Kernel::ClientPort>> ServiceManager::GetServicePort(
const std::string& name) {
CASCADE_CODE(ValidateServiceName(name));
auto it = registered_services.find(name);
if (it == registered_services.end()) {
return ERR_SERVICE_NOT_REGISTERED;
}
return MakeResult<Kernel::SharedPtr<Kernel::ClientPort>>(it->second);
}
ResultVal<Kernel::SharedPtr<Kernel::ClientSession>> ServiceManager::ConnectToService(
const std::string& name) {
CASCADE_RESULT(auto client_port, GetServicePort(name));
return client_port->Connect();
}
SM::~SM() = default;
/**
* SM::Initialize service function
* Inputs:
* 0: 0x00000000
* Outputs:
* 0: ResultCode
*/
void SM::Initialize(Kernel::HLERequestContext& ctx) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
LOG_DEBUG(Service_SM, "called");
}
void SM::GetService(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
auto name_buf = rp.PopRaw<std::array<char, 8>>();
auto end = std::find(name_buf.begin(), name_buf.end(), '\0');
std::string name(name_buf.begin(), end);
// TODO(yuriks): Permission checks go here
auto client_port = service_manager->GetServicePort(name);
if (client_port.Failed()) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(client_port.Code());
LOG_ERROR(Service_SM, "called service={} -> error 0x{:08X}", name, client_port.Code().raw);
if (name.length() == 0)
return; // LibNX Fix
UNIMPLEMENTED();
return;
}
auto session = client_port.Unwrap()->Connect();
ASSERT(session.Succeeded());
if (session.Succeeded()) {
LOG_DEBUG(Service_SM, "called service={} -> session={}", name, (*session)->GetObjectId());
IPC::ResponseBuilder rb{ctx, 2, 0, 1, IPC::ResponseBuilder::Flags::AlwaysMoveHandles};
rb.Push(session.Code());
rb.PushMoveObjects(std::move(session).Unwrap());
}
}
void SM::RegisterService(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const auto name_buf = rp.PopRaw<std::array<char, 8>>();
const auto end = std::find(name_buf.begin(), name_buf.end(), '\0');
const std::string name(name_buf.begin(), end);
const auto unk_bool = static_cast<bool>(rp.PopRaw<u32>());
const auto session_count = rp.PopRaw<u32>();
LOG_DEBUG(Service_SM, "called with unk_bool={}", unk_bool);
auto handle = service_manager->RegisterService(name, session_count);
if (handle.Failed()) {
LOG_ERROR(Service_SM, "failed to register service with error_code={:08X}",
handle.Code().raw);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(handle.Code());
return;
}
IPC::ResponseBuilder rb{ctx, 2, 0, 1, IPC::ResponseBuilder::Flags::AlwaysMoveHandles};
rb.Push(handle.Code());
rb.PushMoveObjects(std::move(handle).Unwrap());
}
void SM::UnregisterService(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const auto name_buf = rp.PopRaw<std::array<char, 8>>();
const auto end = std::find(name_buf.begin(), name_buf.end(), '\0');
const std::string name(name_buf.begin(), end);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(service_manager->UnregisterService(name));
}
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, &SM::RegisterService, "RegisterService"},
{0x00000003, &SM::UnregisterService, "UnregisterService"},
};
RegisterHandlers(functions);
}
} // namespace Service::SM
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