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// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <tuple>
#include "common/common_types.h"
#include "common/logging/log.h"
#include "core/hle/ipc.h"
#include "core/hle/kernel/client_port.h"
#include "core/hle/kernel/client_session.h"
#include "core/hle/kernel/handle_table.h"
#include "core/hle/kernel/semaphore.h"
#include "core/hle/kernel/server_session.h"
#include "core/hle/service/sm/sm.h"
#include "core/hle/service/sm/srv.h"
namespace Service {
namespace SM {
constexpr int MAX_PENDING_NOTIFICATIONS = 16;
/**
* SRV::RegisterClient service function
* Inputs:
* 0: 0x00010002
* 1: ProcessId Header (must be 0x20)
* Outputs:
* 0: 0x00010040
* 1: ResultCode
*/
void SRV::RegisterClient(Kernel::HLERequestContext& ctx) {
u32* cmd_buff = ctx.CommandBuffer();
if (cmd_buff[1] != IPC::CallingPidDesc()) {
cmd_buff[0] = IPC::MakeHeader(0x0, 0x1, 0); // 0x40
cmd_buff[1] = IPC::ERR_INVALID_BUFFER_DESCRIPTOR.raw;
return;
}
cmd_buff[0] = IPC::MakeHeader(0x1, 0x1, 0); // 0x10040
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_SRV, "(STUBBED) called");
}
/**
* SRV::EnableNotification service function
* Inputs:
* 0: 0x00020000
* Outputs:
* 0: 0x00020042
* 1: ResultCode
* 2: Translation descriptor: 0x20
* 3: Handle to semaphore signaled on process notification
*/
void SRV::EnableNotification(Kernel::HLERequestContext& ctx) {
u32* cmd_buff = ctx.CommandBuffer();
notification_semaphore =
Kernel::Semaphore::Create(0, MAX_PENDING_NOTIFICATIONS, "SRV:Notification").Unwrap();
cmd_buff[0] = IPC::MakeHeader(0x2, 0x1, 0x2); // 0x20042
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[2] = IPC::CopyHandleDesc(1);
cmd_buff[3] = Kernel::g_handle_table.Create(notification_semaphore).MoveFrom();
LOG_WARNING(Service_SRV, "(STUBBED) called");
}
/**
* SRV::GetServiceHandle service function
* Inputs:
* 0: 0x00050100
* 1-2: 8-byte UTF-8 service name
* 3: Name length
* 4: Flags (bit0: if not set, return port-handle if session-handle unavailable)
* Outputs:
* 1: ResultCode
* 3: Service handle
*/
void SRV::GetServiceHandle(Kernel::HLERequestContext& ctx) {
ResultCode res = RESULT_SUCCESS;
u32* cmd_buff = ctx.CommandBuffer();
size_t name_len = cmd_buff[3];
if (name_len > Service::kMaxPortSize) {
cmd_buff[1] = ERR_INVALID_NAME_SIZE.raw;
LOG_ERROR(Service_SRV, "called name_len=0x%X, failed with code=0x%08X", name_len,
cmd_buff[1]);
return;
}
std::string name(reinterpret_cast<const char*>(&cmd_buff[1]), name_len);
bool return_port_on_failure = (cmd_buff[4] & 1) == 0;
// TODO(yuriks): Permission checks go here
auto client_port = service_manager->GetServicePort(name);
if (client_port.Failed()) {
cmd_buff[1] = client_port.Code().raw;
LOG_ERROR(Service_SRV, "called service=%s, failed with code=0x%08X", name.c_str(),
cmd_buff[1]);
return;
}
auto session = client_port.Unwrap()->Connect();
cmd_buff[1] = session.Code().raw;
if (session.Succeeded()) {
cmd_buff[3] = Kernel::g_handle_table.Create(session.MoveFrom()).MoveFrom();
LOG_DEBUG(Service_SRV, "called service=%s, session handle=0x%08X", name.c_str(),
cmd_buff[3]);
} else if (session.Code() == Kernel::ERR_MAX_CONNECTIONS_REACHED && return_port_on_failure) {
cmd_buff[1] = ERR_MAX_CONNECTIONS_REACHED.raw;
cmd_buff[3] = Kernel::g_handle_table.Create(client_port.MoveFrom()).MoveFrom();
LOG_WARNING(Service_SRV, "called service=%s, *port* handle=0x%08X", name.c_str(),
cmd_buff[3]);
} else {
LOG_ERROR(Service_SRV, "called service=%s, failed with code=0x%08X", name.c_str(),
cmd_buff[1]);
}
}
/**
* SRV::Subscribe service function
* Inputs:
* 0: 0x00090040
* 1: Notification ID
* Outputs:
* 0: 0x00090040
* 1: ResultCode
*/
void SRV::Subscribe(Kernel::HLERequestContext& ctx) {
u32* cmd_buff = ctx.CommandBuffer();
u32 notification_id = cmd_buff[1];
cmd_buff[0] = IPC::MakeHeader(0x9, 0x1, 0); // 0x90040
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_SRV, "(STUBBED) called, notification_id=0x%X", notification_id);
}
/**
* SRV::Unsubscribe service function
* Inputs:
* 0: 0x000A0040
* 1: Notification ID
* Outputs:
* 0: 0x000A0040
* 1: ResultCode
*/
void SRV::Unsubscribe(Kernel::HLERequestContext& ctx) {
u32* cmd_buff = ctx.CommandBuffer();
u32 notification_id = cmd_buff[1];
cmd_buff[0] = IPC::MakeHeader(0xA, 0x1, 0); // 0xA0040
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_SRV, "(STUBBED) called, notification_id=0x%X", notification_id);
}
/**
* SRV::PublishToSubscriber service function
* Inputs:
* 0: 0x000C0080
* 1: Notification ID
* 2: Flags (bit0: only fire if not fired, bit1: report errors)
* Outputs:
* 0: 0x000C0040
* 1: ResultCode
*/
void SRV::PublishToSubscriber(Kernel::HLERequestContext& ctx) {
u32* cmd_buff = ctx.CommandBuffer();
u32 notification_id = cmd_buff[1];
u8 flags = cmd_buff[2] & 0xFF;
cmd_buff[0] = IPC::MakeHeader(0xC, 0x1, 0); // 0xC0040
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_SRV, "(STUBBED) called, notification_id=0x%X, flags=%u", notification_id,
flags);
}
SRV::SRV(std::shared_ptr<ServiceManager> service_manager)
: ServiceFramework("srv:", 4), service_manager(std::move(service_manager)) {
static const FunctionInfo functions[] = {
{0x00010002, &SRV::RegisterClient, "RegisterClient"},
{0x00020000, &SRV::EnableNotification, "EnableNotification"},
{0x00030100, nullptr, "RegisterService"},
{0x000400C0, nullptr, "UnregisterService"},
{0x00050100, &SRV::GetServiceHandle, "GetServiceHandle"},
{0x000600C2, nullptr, "RegisterPort"},
{0x000700C0, nullptr, "UnregisterPort"},
{0x00080100, nullptr, "GetPort"},
{0x00090040, &SRV::Subscribe, "Subscribe"},
{0x000A0040, &SRV::Unsubscribe, "Unsubscribe"},
{0x000B0000, nullptr, "ReceiveNotification"},
{0x000C0080, &SRV::PublishToSubscriber, "PublishToSubscriber"},
{0x000D0040, nullptr, "PublishAndGetSubscriber"},
{0x000E00C0, nullptr, "IsServiceRegistered"},
};
RegisterHandlers(functions);
}
SRV::~SRV() = default;
} // namespace SM
} // namespace Service
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