From cc6e4ae6cf496f787c5277135aaa3e63cb98b780 Mon Sep 17 00:00:00 2001 From: Subv Date: Mon, 19 Feb 2018 00:33:48 -0500 Subject: [PATCH] FS: Implement MountSaveData and some of the IFile interface. --- src/core/hle/service/filesystem/fsp_srv.cpp | 188 ++++++++++++++++++++ src/core/hle/service/filesystem/fsp_srv.h | 1 + 2 files changed, 189 insertions(+) diff --git a/src/core/hle/service/filesystem/fsp_srv.cpp b/src/core/hle/service/filesystem/fsp_srv.cpp index 87a07e457a..3ac5a96cb2 100644 --- a/src/core/hle/service/filesystem/fsp_srv.cpp +++ b/src/core/hle/service/filesystem/fsp_srv.cpp @@ -2,6 +2,7 @@ // Licensed under GPLv2 or any later version // Refer to the license.txt file included. +#include #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 { +public: + explicit IFile(std::unique_ptr&& 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 backend; + + void Read(Kernel::HLERequestContext& ctx) { + IPC::RequestParser rp{ctx}; + const u64 unk = rp.Pop(); + const s64 offset = rp.Pop(); + const s64 length = rp.Pop(); + + 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 output(length); + ResultVal 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(*res)); + } + + void Write(Kernel::HLERequestContext& ctx) { + IPC::RequestParser rp{ctx}; + const u64 unk = rp.Pop(); + const s64 offset = rp.Pop(); + const s64 length = rp.Pop(); + + 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 data = ctx.ReadBuffer(); + ResultVal 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 { +public: + explicit IFileSystem(std::unique_ptr&& 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(); + u32 size = rp.Pop(); + + 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(rp.Pop()); + + LOG_DEBUG(Service_FS, "called file %s mode %u", name.c_str(), static_cast(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(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(static_cast(*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 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(std::move(filesystem)); +} + void FSP_SRV::GetGlobalAccessLogMode(Kernel::HLERequestContext& ctx) { LOG_WARNING(Service_FS, "(STUBBED) called"); diff --git a/src/core/hle/service/filesystem/fsp_srv.h b/src/core/hle/service/filesystem/fsp_srv.h index 56afc4b90f..f19b2f2c43 100644 --- a/src/core/hle/service/filesystem/fsp_srv.h +++ b/src/core/hle/service/filesystem/fsp_srv.h @@ -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);