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FS: Implement MountSaveData and some of the IFile interface.

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This commit is contained in:
Subv 2018-02-19 00:33:48 -05:00
parent d140c8ecf7
commit cc6e4ae6cf
2 changed files with 189 additions and 0 deletions
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188
src/core/hle/service/filesystem/fsp_srv.cpp
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@ -2,6 +2,7 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <cinttypes>
#include "common/logging/log.h"
#include "core/core.h"
#include "core/file_sys/filesystem.h"
@ -65,10 +66,186 @@ private:
}
};
class IFile final : public ServiceFramework<IFile> {
public:
explicit IFile(std::unique_ptr<FileSys::StorageBackend>&& backend)
: ServiceFramework("IFile"), backend(std::move(backend)) {
static const FunctionInfo functions[] = {
{0, &IFile::Read, "Read"}, {1, &IFile::Write, "Write"}, {2, nullptr, "Flush"},
{3, nullptr, "SetSize"}, {4, nullptr, "GetSize"},
};
RegisterHandlers(functions);
}
private:
std::unique_ptr<FileSys::StorageBackend> backend;
void Read(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const u64 unk = rp.Pop<u64>();
const s64 offset = rp.Pop<s64>();
const s64 length = rp.Pop<s64>();
LOG_DEBUG(Service_FS, "called, offset=0x%llx, length=0x%llx", offset, length);
// Error checking
if (length < 0) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultCode(ErrorModule::FS, ErrorDescription::InvalidLength));
return;
}
if (offset < 0) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultCode(ErrorModule::FS, ErrorDescription::InvalidOffset));
return;
}
// Read the data from the Storage backend
std::vector<u8> output(length);
ResultVal<size_t> res = backend->Read(offset, length, output.data());
if (res.Failed()) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(res.Code());
return;
}
// Write the data to memory
ctx.WriteBuffer(output);
IPC::ResponseBuilder rb{ctx, 4};
rb.Push(RESULT_SUCCESS);
rb.Push(static_cast<u64>(*res));
}
void Write(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
const u64 unk = rp.Pop<u64>();
const s64 offset = rp.Pop<s64>();
const s64 length = rp.Pop<s64>();
LOG_DEBUG(Service_FS, "called, offset=0x%llx, length=0x%llx", offset, length);
// Error checking
if (length < 0) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultCode(ErrorModule::FS, ErrorDescription::InvalidLength));
return;
}
if (offset < 0) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(ResultCode(ErrorModule::FS, ErrorDescription::InvalidOffset));
return;
}
// Write the data to the Storage backend
std::vector<u8> data = ctx.ReadBuffer();
ResultVal<size_t> res = backend->Write(offset, length, true, data.data());
if (res.Failed()) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(res.Code());
return;
}
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
}
};
class IFileSystem final : public ServiceFramework<IFileSystem> {
public:
explicit IFileSystem(std::unique_ptr<FileSys::FileSystemBackend>&& backend)
: ServiceFramework("IFileSystem"), backend(std::move(backend)) {
static const FunctionInfo functions[] = {
{0, &IFileSystem::CreateFile, "CreateFile"},
{7, &IFileSystem::GetEntryType, "GetEntryType"},
{8, &IFileSystem::OpenFile, "OpenFile"},
{10, &IFileSystem::Commit, "Commit"},
};
RegisterHandlers(functions);
}
void CreateFile(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
auto file_buffer = ctx.ReadBuffer();
auto end = std::find(file_buffer.begin(), file_buffer.end(), '\0');
std::string name(file_buffer.begin(), end);
u64 mode = rp.Pop<u64>();
u32 size = rp.Pop<u32>();
LOG_DEBUG(Service_FS, "called file %s mode 0x%" PRIX64 " size 0x%08X", name.c_str(), mode,
size);
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(backend->CreateFile(name, size));
}
void OpenFile(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
auto file_buffer = ctx.ReadBuffer();
auto end = std::find(file_buffer.begin(), file_buffer.end(), '\0');
std::string name(file_buffer.begin(), end);
auto mode = static_cast<FileSys::Mode>(rp.Pop<u32>());
LOG_DEBUG(Service_FS, "called file %s mode %u", name.c_str(), static_cast<u32>(mode));
auto result = backend->OpenFile(name, mode);
if (result.Failed()) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result.Code());
return;
}
auto file = std::move(result.Unwrap());
IPC::ResponseBuilder rb{ctx, 2, 0, 1};
rb.Push(RESULT_SUCCESS);
rb.PushIpcInterface<IFile>(std::move(file));
}
void GetEntryType(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp{ctx};
auto file_buffer = ctx.ReadBuffer();
auto end = std::find(file_buffer.begin(), file_buffer.end(), '\0');
std::string name(file_buffer.begin(), end);
LOG_DEBUG(Service_FS, "called file %s", name.c_str());
auto result = backend->GetEntryType(name);
if (result.Failed()) {
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(result.Code());
return;
}
IPC::ResponseBuilder rb{ctx, 3};
rb.Push(RESULT_SUCCESS);
rb.Push<u32>(static_cast<u32>(*result));
}
void Commit(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_FS, "(STUBBED) called");
IPC::ResponseBuilder rb{ctx, 2};
rb.Push(RESULT_SUCCESS);
}
private:
std::unique_ptr<FileSys::FileSystemBackend> backend;
};
FSP_SRV::FSP_SRV() : ServiceFramework("fsp-srv") {
static const FunctionInfo functions[] = {
{1, &FSP_SRV::Initalize, "Initalize"},
{18, &FSP_SRV::MountSdCard, "MountSdCard"},
{51, &FSP_SRV::MountSaveData, "MountSaveData"},
{200, &FSP_SRV::OpenDataStorageByCurrentProcess, "OpenDataStorageByCurrentProcess"},
{202, nullptr, "OpenDataStorageByDataId"},
{203, &FSP_SRV::OpenRomStorage, "OpenRomStorage"},
@ -102,6 +279,17 @@ void FSP_SRV::MountSdCard(Kernel::HLERequestContext& ctx) {
rb.Push(RESULT_SUCCESS);
}
void FSP_SRV::MountSaveData(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_FS, "(STUBBED) called");
FileSys::Path unused;
auto filesystem = OpenFileSystem(Type::SaveData, unused).Unwrap();
IPC::ResponseBuilder rb{ctx, 2, 0, 1};
rb.Push(RESULT_SUCCESS);
rb.PushIpcInterface<IFileSystem>(std::move(filesystem));
}
void FSP_SRV::GetGlobalAccessLogMode(Kernel::HLERequestContext& ctx) {
LOG_WARNING(Service_FS, "(STUBBED) called");

1
src/core/hle/service/filesystem/fsp_srv.h
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@ -24,6 +24,7 @@ private:
void Initalize(Kernel::HLERequestContext& ctx);
void MountSdCard(Kernel::HLERequestContext& ctx);
void MountSaveData(Kernel::HLERequestContext& ctx);
void GetGlobalAccessLogMode(Kernel::HLERequestContext& ctx);
void OpenDataStorageByCurrentProcess(Kernel::HLERequestContext& ctx);
void OpenRomStorage(Kernel::HLERequestContext& ctx);