suyu/src/core/hle/service/apt/apt.cpp
Yuri Kunde Schlesner 687d973980 Core: Improve APT Shared Font hack
Should fix invalid read loops in some games
2015-08-26 21:28:58 -03:00

440 lines
17 KiB
C++

// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/common_paths.h"
#include "common/file_util.h"
#include "common/logging/log.h"
#include "core/hle/applets/applet.h"
#include "core/hle/service/service.h"
#include "core/hle/service/apt/apt.h"
#include "core/hle/service/apt/apt_a.h"
#include "core/hle/service/apt/apt_s.h"
#include "core/hle/service/apt/apt_u.h"
#include "core/hle/hle.h"
#include "core/hle/kernel/event.h"
#include "core/hle/kernel/mutex.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/hle/kernel/thread.h"
namespace Service {
namespace APT {
// Address used for shared font (as observed on HW)
// TODO(bunnei): This is the hard-coded address where we currently dump the shared font from via
// https://github.com/citra-emu/3dsutils. This is technically a hack, and will not work at any
// address other than 0x18000000 due to internal pointers in the shared font dump that would need to
// be relocated. This might be fixed by dumping the shared font @ address 0x00000000 and then
// correctly mapping it in Citra, however we still do not understand how the mapping is determined.
static const VAddr SHARED_FONT_VADDR = 0x18000000;
/// Handle to shared memory region designated to for shared system font
static Kernel::SharedPtr<Kernel::SharedMemory> shared_font_mem;
static Kernel::SharedPtr<Kernel::Mutex> lock;
static Kernel::SharedPtr<Kernel::Event> notification_event; ///< APT notification event
static Kernel::SharedPtr<Kernel::Event> parameter_event; ///< APT parameter event
static std::shared_ptr<std::vector<u8>> shared_font;
static u32 cpu_percent; ///< CPU time available to the running application
/// Parameter data to be returned in the next call to Glance/ReceiveParameter
static MessageParameter next_parameter;
void SendParameter(const MessageParameter& parameter) {
next_parameter = parameter;
// Signal the event to let the application know that a new parameter is ready to be read
parameter_event->Signal();
}
void Initialize(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 app_id = cmd_buff[1];
u32 flags = cmd_buff[2];
cmd_buff[2] = IPC::MoveHandleDesc(2);
cmd_buff[3] = Kernel::g_handle_table.Create(notification_event).MoveFrom();
cmd_buff[4] = Kernel::g_handle_table.Create(parameter_event).MoveFrom();
// TODO(bunnei): Check if these events are cleared every time Initialize is called.
notification_event->Clear();
parameter_event->Clear();
ASSERT_MSG((nullptr != lock), "Cannot initialize without lock");
lock->Release();
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_DEBUG(Service_APT, "called app_id=0x%08X, flags=0x%08X", app_id, flags);
}
void GetSharedFont(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
if (shared_font != nullptr) {
// TODO(yuriks): This is a hack to keep this working right now even with our completely
// broken shared memory system.
shared_font_mem->fixed_address = SHARED_FONT_VADDR;
Kernel::g_current_process->vm_manager.MapMemoryBlock(shared_font_mem->fixed_address,
shared_font, 0, shared_font_mem->size, Kernel::MemoryState::Shared);
cmd_buff[0] = IPC::MakeHeader(0x44, 2, 2);
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[2] = SHARED_FONT_VADDR;
cmd_buff[3] = IPC::MoveHandleDesc();
cmd_buff[4] = Kernel::g_handle_table.Create(shared_font_mem).MoveFrom();
} else {
cmd_buff[0] = IPC::MakeHeader(0x44, 1, 0);
cmd_buff[1] = -1; // Generic error (not really possible to verify this on hardware)
LOG_ERROR(Kernel_SVC, "called, but %s has not been loaded!", SHARED_FONT);
}
}
void NotifyToWait(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 app_id = cmd_buff[1];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_APT, "(STUBBED) app_id=%u", app_id);
}
void GetLockHandle(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
// Bits [0:2] are the applet type (System, Library, etc)
// Bit 5 tells the application that there's a pending APT parameter,
// this will cause the app to wait until parameter_event is signaled.
u32 applet_attributes = cmd_buff[1];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[2] = applet_attributes; // Applet Attributes, this value is passed to Enable.
cmd_buff[3] = 0; // Least significant bit = power button state
cmd_buff[4] = IPC::CopyHandleDesc();
cmd_buff[5] = Kernel::g_handle_table.Create(lock).MoveFrom();
LOG_WARNING(Service_APT, "(STUBBED) called handle=0x%08X applet_attributes=0x%08X", cmd_buff[5], applet_attributes);
}
void Enable(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 attributes = cmd_buff[1];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
parameter_event->Signal(); // Let the application know that it has been started
LOG_WARNING(Service_APT, "(STUBBED) called attributes=0x%08X", attributes);
}
void GetAppletManInfo(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 unk = cmd_buff[1];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[2] = 0;
cmd_buff[3] = 0;
cmd_buff[4] = static_cast<u32>(AppletId::HomeMenu); // Home menu AppID
cmd_buff[5] = static_cast<u32>(AppletId::Application); // TODO(purpasmart96): Do this correctly
LOG_WARNING(Service_APT, "(STUBBED) called unk=0x%08X", unk);
}
void IsRegistered(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 app_id = cmd_buff[1];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
// TODO(Subv): An application is considered "registered" if it has already called APT::Enable
// handle this properly once we implement multiprocess support.
cmd_buff[2] = 0; // Set to not registered by default
if (app_id == static_cast<u32>(AppletId::AnyLibraryApplet)) {
cmd_buff[2] = HLE::Applets::IsLibraryAppletRunning() ? 1 : 0;
} else if (auto applet = HLE::Applets::Applet::Get(static_cast<AppletId>(app_id))) {
cmd_buff[2] = 1; // Set to registered
}
LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X", app_id);
}
void InquireNotification(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 app_id = cmd_buff[1];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[2] = static_cast<u32>(SignalType::None); // Signal type
LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X", app_id);
}
void SendParameter(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 src_app_id = cmd_buff[1];
u32 dst_app_id = cmd_buff[2];
u32 signal_type = cmd_buff[3];
u32 buffer_size = cmd_buff[4];
u32 value = cmd_buff[5];
u32 handle = cmd_buff[6];
u32 size = cmd_buff[7];
u32 buffer = cmd_buff[8];
std::shared_ptr<HLE::Applets::Applet> dest_applet = HLE::Applets::Applet::Get(static_cast<AppletId>(dst_app_id));
if (dest_applet == nullptr) {
LOG_ERROR(Service_APT, "Unknown applet id=0x%08X", dst_app_id);
cmd_buff[1] = -1; // TODO(Subv): Find the right error code
return;
}
MessageParameter param;
param.buffer_size = buffer_size;
param.destination_id = dst_app_id;
param.sender_id = src_app_id;
param.object = Kernel::g_handle_table.GetGeneric(handle);
param.signal = signal_type;
param.data = Memory::GetPointer(buffer);
cmd_buff[1] = dest_applet->ReceiveParameter(param).raw;
LOG_WARNING(Service_APT, "(STUBBED) called src_app_id=0x%08X, dst_app_id=0x%08X, signal_type=0x%08X,"
"buffer_size=0x%08X, value=0x%08X, handle=0x%08X, size=0x%08X, in_param_buffer_ptr=0x%08X",
src_app_id, dst_app_id, signal_type, buffer_size, value, handle, size, buffer);
}
void ReceiveParameter(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 app_id = cmd_buff[1];
u32 buffer_size = cmd_buff[2];
VAddr buffer = cmd_buff[0x104 >> 2];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[2] = next_parameter.sender_id;
cmd_buff[3] = next_parameter.signal; // Signal type
cmd_buff[4] = next_parameter.buffer_size; // Parameter buffer size
cmd_buff[5] = 0x10;
cmd_buff[6] = 0;
if (next_parameter.object != nullptr)
cmd_buff[6] = Kernel::g_handle_table.Create(next_parameter.object).MoveFrom();
cmd_buff[7] = (next_parameter.buffer_size << 14) | 2;
cmd_buff[8] = buffer;
if (next_parameter.data)
memcpy(Memory::GetPointer(buffer), next_parameter.data, std::min(buffer_size, next_parameter.buffer_size));
LOG_WARNING(Service_APT, "called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
}
void GlanceParameter(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 app_id = cmd_buff[1];
u32 buffer_size = cmd_buff[2];
VAddr buffer = cmd_buff[0x104 >> 2];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[2] = next_parameter.sender_id;
cmd_buff[3] = next_parameter.signal; // Signal type
cmd_buff[4] = next_parameter.buffer_size; // Parameter buffer size
cmd_buff[5] = 0x10;
cmd_buff[6] = 0;
if (next_parameter.object != nullptr)
cmd_buff[6] = Kernel::g_handle_table.Create(next_parameter.object).MoveFrom();
cmd_buff[7] = (next_parameter.buffer_size << 14) | 2;
cmd_buff[8] = buffer;
if (next_parameter.data)
memcpy(Memory::GetPointer(buffer), next_parameter.data, std::min(buffer_size, next_parameter.buffer_size));
LOG_WARNING(Service_APT, "called app_id=0x%08X, buffer_size=0x%08X", app_id, buffer_size);
}
void CancelParameter(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 flag1 = cmd_buff[1];
u32 unk = cmd_buff[2];
u32 flag2 = cmd_buff[3];
u32 app_id = cmd_buff[4];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[2] = 1; // Set to Success
LOG_WARNING(Service_APT, "(STUBBED) called flag1=0x%08X, unk=0x%08X, flag2=0x%08X, app_id=0x%08X",
flag1, unk, flag2, app_id);
}
void PrepareToStartApplication(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 title_info1 = cmd_buff[1];
u32 title_info2 = cmd_buff[2];
u32 title_info3 = cmd_buff[3];
u32 title_info4 = cmd_buff[4];
u32 flags = cmd_buff[5];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_APT, "(STUBBED) called title_info1=0x%08X, title_info2=0x%08X, title_info3=0x%08X,"
"title_info4=0x%08X, flags=0x%08X", title_info1, title_info2, title_info3, title_info4, flags);
}
void StartApplication(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 buffer1_size = cmd_buff[1];
u32 buffer2_size = cmd_buff[2];
u32 flag = cmd_buff[3];
u32 size1 = cmd_buff[4];
u32 buffer1_ptr = cmd_buff[5];
u32 size2 = cmd_buff[6];
u32 buffer2_ptr = cmd_buff[7];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_APT, "(STUBBED) called buffer1_size=0x%08X, buffer2_size=0x%08X, flag=0x%08X,"
"size1=0x%08X, buffer1_ptr=0x%08X, size2=0x%08X, buffer2_ptr=0x%08X",
buffer1_size, buffer2_size, flag, size1, buffer1_ptr, size2, buffer2_ptr);
}
void AppletUtility(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
// These are from 3dbrew - I'm not really sure what they're used for.
u32 command = cmd_buff[1];
u32 buffer1_size = cmd_buff[2];
u32 buffer2_size = cmd_buff[3];
u32 buffer1_addr = cmd_buff[5];
u32 buffer2_addr = cmd_buff[65];
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_APT, "(STUBBED) called command=0x%08X, buffer1_size=0x%08X, buffer2_size=0x%08X, "
"buffer1_addr=0x%08X, buffer2_addr=0x%08X", command, buffer1_size, buffer2_size,
buffer1_addr, buffer2_addr);
}
void SetAppCpuTimeLimit(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 value = cmd_buff[1];
cpu_percent = cmd_buff[2];
if (value != 1) {
LOG_ERROR(Service_APT, "This value should be one, but is actually %u!", value);
}
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
LOG_WARNING(Service_APT, "(STUBBED) called cpu_percent=%u, value=%u", cpu_percent, value);
}
void GetAppCpuTimeLimit(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 value = cmd_buff[1];
if (value != 1) {
LOG_ERROR(Service_APT, "This value should be one, but is actually %u!", value);
}
cmd_buff[1] = RESULT_SUCCESS.raw; // No error
cmd_buff[2] = cpu_percent;
LOG_WARNING(Service_APT, "(STUBBED) called value=%u", value);
}
void PrepareToStartLibraryApplet(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
AppletId applet_id = static_cast<AppletId>(cmd_buff[1]);
auto applet = HLE::Applets::Applet::Get(applet_id);
if (applet) {
LOG_WARNING(Service_APT, "applet has already been started id=%08X", applet_id);
cmd_buff[1] = RESULT_SUCCESS.raw;
} else {
cmd_buff[1] = HLE::Applets::Applet::Create(applet_id).raw;
}
LOG_DEBUG(Service_APT, "called applet_id=%08X", applet_id);
}
void PreloadLibraryApplet(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
AppletId applet_id = static_cast<AppletId>(cmd_buff[1]);
auto applet = HLE::Applets::Applet::Get(applet_id);
if (applet) {
LOG_WARNING(Service_APT, "applet has already been started id=%08X", applet_id);
cmd_buff[1] = RESULT_SUCCESS.raw;
} else {
cmd_buff[1] = HLE::Applets::Applet::Create(applet_id).raw;
}
LOG_DEBUG(Service_APT, "called applet_id=%08X", applet_id);
}
void StartLibraryApplet(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
AppletId applet_id = static_cast<AppletId>(cmd_buff[1]);
std::shared_ptr<HLE::Applets::Applet> applet = HLE::Applets::Applet::Get(applet_id);
LOG_DEBUG(Service_APT, "called applet_id=%08X", applet_id);
if (applet == nullptr) {
LOG_ERROR(Service_APT, "unknown applet id=%08X", applet_id);
cmd_buff[1] = -1; // TODO(Subv): Find the right error code
return;
}
AppletStartupParameter parameter;
parameter.buffer_size = cmd_buff[2];
parameter.object = Kernel::g_handle_table.GetGeneric(cmd_buff[4]);
parameter.data = Memory::GetPointer(cmd_buff[6]);
cmd_buff[1] = applet->Start(parameter).raw;
}
void Init() {
AddService(new APT_A_Interface);
AddService(new APT_S_Interface);
AddService(new APT_U_Interface);
HLE::Applets::Init();
// Load the shared system font (if available).
// The expected format is a decrypted, uncompressed BCFNT file with the 0x80 byte header
// generated by the APT:U service. The best way to get is by dumping it from RAM. We've provided
// a homebrew app to do this: https://github.com/citra-emu/3dsutils. Put the resulting file
// "shared_font.bin" in the Citra "sysdata" directory.
std::string filepath = FileUtil::GetUserPath(D_SYSDATA_IDX) + SHARED_FONT;
FileUtil::CreateFullPath(filepath); // Create path if not already created
FileUtil::IOFile file(filepath, "rb");
if (file.IsOpen()) {
// Read shared font data
shared_font = std::make_shared<std::vector<u8>>((size_t)file.GetSize());
file.ReadBytes(shared_font->data(), shared_font->size());
// Create shared font memory object
using Kernel::MemoryPermission;
shared_font_mem = Kernel::SharedMemory::Create(3 * 1024 * 1024, // 3MB
MemoryPermission::ReadWrite, MemoryPermission::Read, "APT_U:shared_font_mem");
} else {
LOG_WARNING(Service_APT, "Unable to load shared font: %s", filepath.c_str());
shared_font_mem = nullptr;
}
lock = Kernel::Mutex::Create(false, "APT_U:Lock");
cpu_percent = 0;
// TODO(bunnei): Check if these are created in Initialize or on APT process startup.
notification_event = Kernel::Event::Create(RESETTYPE_ONESHOT, "APT_U:Notification");
parameter_event = Kernel::Event::Create(RESETTYPE_ONESHOT, "APT_U:Start");
next_parameter.signal = static_cast<u32>(SignalType::AppJustStarted);
next_parameter.destination_id = 0x300;
}
void Shutdown() {
shared_font = nullptr;
shared_font_mem = nullptr;
lock = nullptr;
notification_event = nullptr;
parameter_event = nullptr;
next_parameter.object = nullptr;
HLE::Applets::Shutdown();
}
} // namespace APT
} // namespace Service