k_server_session: translate special header for non-HLE requests
This commit is contained in:
Liam
parent
f80edad109
commit
4540bcfaf7
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@ -285,6 +285,7 @@ add_library(core STATIC
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hle/kernel/kernel.cpp
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hle/kernel/kernel.h
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hle/kernel/memory_types.h
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hle/kernel/message_buffer.h
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hle/kernel/physical_core.cpp
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hle/kernel/physical_core.h
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hle/kernel/physical_memory.h
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@ -20,12 +20,132 @@
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#include "core/hle/kernel/k_thread.h"
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#include "core/hle/kernel/k_thread_queue.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/kernel/message_buffer.h"
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#include "core/hle/service/hle_ipc.h"
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#include "core/hle/service/ipc_helpers.h"
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#include "core/memory.h"
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namespace Kernel {
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namespace {
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template <bool MoveHandleAllowed>
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Result ProcessMessageSpecialData(KProcess& dst_process, KProcess& src_process, KThread& src_thread,
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MessageBuffer& dst_msg, const MessageBuffer& src_msg,
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MessageBuffer::SpecialHeader& src_special_header) {
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// Copy the special header to the destination.
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s32 offset = dst_msg.Set(src_special_header);
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// Copy the process ID.
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if (src_special_header.GetHasProcessId()) {
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offset = dst_msg.SetProcessId(offset, src_process.GetProcessId());
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}
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// Prepare to process handles.
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auto& dst_handle_table = dst_process.GetHandleTable();
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auto& src_handle_table = src_process.GetHandleTable();
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Result result = ResultSuccess;
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// Process copy handles.
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for (auto i = 0; i < src_special_header.GetCopyHandleCount(); ++i) {
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// Get the handles.
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const Handle src_handle = src_msg.GetHandle(offset);
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Handle dst_handle = Svc::InvalidHandle;
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// If we're in a success state, try to move the handle to the new table.
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if (R_SUCCEEDED(result) && src_handle != Svc::InvalidHandle) {
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KScopedAutoObject obj =
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src_handle_table.GetObjectForIpc(src_handle, std::addressof(src_thread));
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if (obj.IsNotNull()) {
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Result add_result =
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dst_handle_table.Add(std::addressof(dst_handle), obj.GetPointerUnsafe());
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if (R_FAILED(add_result)) {
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result = add_result;
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dst_handle = Svc::InvalidHandle;
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}
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} else {
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result = ResultInvalidHandle;
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}
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}
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// Set the handle.
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offset = dst_msg.SetHandle(offset, dst_handle);
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}
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// Process move handles.
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if constexpr (MoveHandleAllowed) {
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for (auto i = 0; i < src_special_header.GetMoveHandleCount(); ++i) {
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// Get the handles.
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const Handle src_handle = src_msg.GetHandle(offset);
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Handle dst_handle = Svc::InvalidHandle;
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// Whether or not we've succeeded, we need to remove the handles from the source table.
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if (src_handle != Svc::InvalidHandle) {
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if (R_SUCCEEDED(result)) {
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KScopedAutoObject obj =
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src_handle_table.GetObjectForIpcWithoutPseudoHandle(src_handle);
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if (obj.IsNotNull()) {
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Result add_result = dst_handle_table.Add(std::addressof(dst_handle),
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obj.GetPointerUnsafe());
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src_handle_table.Remove(src_handle);
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if (R_FAILED(add_result)) {
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result = add_result;
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dst_handle = Svc::InvalidHandle;
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}
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} else {
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result = ResultInvalidHandle;
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}
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} else {
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src_handle_table.Remove(src_handle);
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}
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}
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// Set the handle.
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offset = dst_msg.SetHandle(offset, dst_handle);
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}
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}
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R_RETURN(result);
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}
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void CleanupSpecialData(KProcess& dst_process, u32* dst_msg_ptr, size_t dst_buffer_size) {
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// Parse the message.
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const MessageBuffer dst_msg(dst_msg_ptr, dst_buffer_size);
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const MessageBuffer::MessageHeader dst_header(dst_msg);
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const MessageBuffer::SpecialHeader dst_special_header(dst_msg, dst_header);
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// Check that the size is big enough.
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if (MessageBuffer::GetMessageBufferSize(dst_header, dst_special_header) > dst_buffer_size) {
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return;
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}
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// Set the special header.
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int offset = dst_msg.Set(dst_special_header);
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// Clear the process id, if needed.
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if (dst_special_header.GetHasProcessId()) {
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offset = dst_msg.SetProcessId(offset, 0);
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}
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// Clear handles, as relevant.
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auto& dst_handle_table = dst_process.GetHandleTable();
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for (auto i = 0;
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i < (dst_special_header.GetCopyHandleCount() + dst_special_header.GetMoveHandleCount());
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++i) {
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const Handle handle = dst_msg.GetHandle(offset);
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if (handle != Svc::InvalidHandle) {
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dst_handle_table.Remove(handle);
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}
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offset = dst_msg.SetHandle(offset, Svc::InvalidHandle);
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}
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}
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} // namespace
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using ThreadQueueImplForKServerSessionRequest = KThreadQueue;
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KServerSession::KServerSession(KernelCore& kernel)
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@ -223,12 +343,27 @@ Result KServerSession::SendReply(bool is_hle) {
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// the reply has already been written in this case.
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} else {
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Core::Memory::Memory& memory{client_thread->GetOwnerProcess()->GetMemory()};
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KThread* server_thread{GetCurrentThreadPointer(m_kernel)};
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KThread* server_thread = GetCurrentThreadPointer(m_kernel);
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KProcess& src_process = *client_thread->GetOwnerProcess();
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KProcess& dst_process = *server_thread->GetOwnerProcess();
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UNIMPLEMENTED_IF(server_thread->GetOwnerProcess() != client_thread->GetOwnerProcess());
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auto* src_msg_buffer = memory.GetPointer(server_thread->GetTlsAddress());
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auto* dst_msg_buffer = memory.GetPointer(client_message);
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auto* src_msg_buffer = memory.GetPointer<u32>(server_thread->GetTlsAddress());
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auto* dst_msg_buffer = memory.GetPointer<u32>(client_message);
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std::memcpy(dst_msg_buffer, src_msg_buffer, client_buffer_size);
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// Translate special header ad-hoc.
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MessageBuffer src_msg(src_msg_buffer, client_buffer_size);
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MessageBuffer::MessageHeader src_header(src_msg);
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MessageBuffer::SpecialHeader src_special_header(src_msg, src_header);
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if (src_header.GetHasSpecialHeader()) {
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MessageBuffer dst_msg(dst_msg_buffer, client_buffer_size);
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result = ProcessMessageSpecialData<true>(dst_process, src_process, *server_thread,
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dst_msg, src_msg, src_special_header);
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if (R_FAILED(result)) {
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CleanupSpecialData(dst_process, dst_msg_buffer, client_buffer_size);
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}
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}
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}
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} else {
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result = ResultSessionClosed;
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@ -330,12 +465,28 @@ Result KServerSession::ReceiveRequest(std::shared_ptr<Service::HLERequestContext
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->PopulateFromIncomingCommandBuffer(client_thread->GetOwnerProcess()->GetHandleTable(),
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cmd_buf);
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} else {
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KThread* server_thread{GetCurrentThreadPointer(m_kernel)};
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UNIMPLEMENTED_IF(server_thread->GetOwnerProcess() != client_thread->GetOwnerProcess());
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KThread* server_thread = GetCurrentThreadPointer(m_kernel);
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KProcess& src_process = *client_thread->GetOwnerProcess();
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KProcess& dst_process = *server_thread->GetOwnerProcess();
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UNIMPLEMENTED_IF(client_thread->GetOwnerProcess() != server_thread->GetOwnerProcess());
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auto* src_msg_buffer = memory.GetPointer(client_message);
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auto* dst_msg_buffer = memory.GetPointer(server_thread->GetTlsAddress());
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auto* src_msg_buffer = memory.GetPointer<u32>(client_message);
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auto* dst_msg_buffer = memory.GetPointer<u32>(server_thread->GetTlsAddress());
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std::memcpy(dst_msg_buffer, src_msg_buffer, client_buffer_size);
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// Translate special header ad-hoc.
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// TODO: fix this mess
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MessageBuffer src_msg(src_msg_buffer, client_buffer_size);
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MessageBuffer::MessageHeader src_header(src_msg);
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MessageBuffer::SpecialHeader src_special_header(src_msg, src_header);
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if (src_header.GetHasSpecialHeader()) {
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MessageBuffer dst_msg(dst_msg_buffer, client_buffer_size);
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Result res = ProcessMessageSpecialData<false>(dst_process, src_process, *client_thread,
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dst_msg, src_msg, src_special_header);
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if (R_FAILED(res)) {
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CleanupSpecialData(dst_process, dst_msg_buffer, client_buffer_size);
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}
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}
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}
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// We succeeded.
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@ -0,0 +1,612 @@
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// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include "common/alignment.h"
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#include "common/bit_field.h"
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#include "core/hle/kernel/k_thread.h"
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namespace Kernel {
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constexpr inline size_t MessageBufferSize = 0x100;
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class MessageBuffer {
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public:
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class MessageHeader {
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private:
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static constexpr inline u64 NullTag = 0;
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public:
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enum class ReceiveListCountType : u32 {
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None = 0,
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ToMessageBuffer = 1,
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ToSingleBuffer = 2,
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CountOffset = 2,
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CountMax = 13,
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};
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private:
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union {
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std::array<u32, 2> raw;
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struct {
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// Define fields for the first header word.
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union {
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BitField<0, 16, u16> tag;
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BitField<16, 4, u32> pointer_count;
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BitField<20, 4, u32> send_count;
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BitField<24, 4, u32> receive_count;
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BitField<28, 4, u32> exchange_count;
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};
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// Define fields for the second header word.
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union {
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BitField<0, 10, u32> raw_count;
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BitField<10, 4, ReceiveListCountType> receive_list_count;
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BitField<14, 6, u32> reserved0;
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BitField<20, 11, u32> receive_list_offset;
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BitField<31, 1, u32> has_special_header;
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};
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};
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} m_header;
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public:
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constexpr MessageHeader() : m_header{} {}
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constexpr MessageHeader(u16 tag, bool special, s32 ptr, s32 send, s32 recv, s32 exch,
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s32 raw, ReceiveListCountType recv_list)
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: m_header{} {
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m_header.raw[0] = 0;
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m_header.raw[1] = 0;
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m_header.tag.Assign(tag);
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m_header.pointer_count.Assign(ptr);
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m_header.send_count.Assign(send);
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m_header.receive_count.Assign(recv);
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m_header.exchange_count.Assign(exch);
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m_header.raw_count.Assign(raw);
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m_header.receive_list_count.Assign(recv_list);
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m_header.has_special_header.Assign(special);
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}
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explicit MessageHeader(const MessageBuffer& buf) : m_header{} {
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buf.Get(0, m_header.raw.data(), 2);
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}
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explicit MessageHeader(const u32* msg) : m_header{{msg[0], msg[1]}} {}
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constexpr u16 GetTag() const {
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return m_header.tag;
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}
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constexpr s32 GetPointerCount() const {
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return m_header.pointer_count;
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}
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constexpr s32 GetSendCount() const {
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return m_header.send_count;
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}
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constexpr s32 GetReceiveCount() const {
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return m_header.receive_count;
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}
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constexpr s32 GetExchangeCount() const {
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return m_header.exchange_count;
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}
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constexpr s32 GetMapAliasCount() const {
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return this->GetSendCount() + this->GetReceiveCount() + this->GetExchangeCount();
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}
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constexpr s32 GetRawCount() const {
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return m_header.raw_count;
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}
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constexpr ReceiveListCountType GetReceiveListCount() const {
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return m_header.receive_list_count;
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}
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constexpr s32 GetReceiveListOffset() const {
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return m_header.receive_list_offset;
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}
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constexpr bool GetHasSpecialHeader() const {
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return m_header.has_special_header.Value() != 0;
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}
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constexpr void SetReceiveListCount(ReceiveListCountType recv_list) {
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m_header.receive_list_count.Assign(recv_list);
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}
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constexpr const u32* GetData() const {
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return m_header.raw.data();
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}
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static constexpr size_t GetDataSize() {
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return sizeof(m_header);
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}
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};
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class SpecialHeader {
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private:
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union {
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std::array<u32, 1> raw;
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// Define fields for the header word.
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BitField<0, 1, u32> has_process_id;
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BitField<1, 4, u32> copy_handle_count;
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BitField<5, 4, u32> move_handle_count;
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} m_header;
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bool m_has_header;
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public:
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constexpr explicit SpecialHeader(bool pid, s32 copy, s32 move)
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: m_header{}, m_has_header(true) {
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m_header.has_process_id.Assign(pid);
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m_header.copy_handle_count.Assign(copy);
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m_header.move_handle_count.Assign(move);
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}
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constexpr explicit SpecialHeader(bool pid, s32 copy, s32 move, bool _has_header)
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: m_header{}, m_has_header(_has_header) {
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m_header.has_process_id.Assign(pid);
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m_header.copy_handle_count.Assign(copy);
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m_header.move_handle_count.Assign(move);
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}
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explicit SpecialHeader(const MessageBuffer& buf, const MessageHeader& hdr)
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: m_header{}, m_has_header(hdr.GetHasSpecialHeader()) {
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if (m_has_header) {
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buf.Get(static_cast<s32>(MessageHeader::GetDataSize() / sizeof(u32)),
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m_header.raw.data(), sizeof(m_header) / sizeof(u32));
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}
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}
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constexpr bool GetHasProcessId() const {
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return m_header.has_process_id.Value() != 0;
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}
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constexpr s32 GetCopyHandleCount() const {
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return m_header.copy_handle_count;
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}
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constexpr s32 GetMoveHandleCount() const {
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return m_header.move_handle_count;
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}
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constexpr const u32* GetHeader() const {
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return m_header.raw.data();
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}
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constexpr size_t GetHeaderSize() const {
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if (m_has_header) {
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return sizeof(m_header);
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} else {
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return 0;
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}
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}
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constexpr size_t GetDataSize() const {
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if (m_has_header) {
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return (this->GetHasProcessId() ? sizeof(u64) : 0) +
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(this->GetCopyHandleCount() * sizeof(Handle)) +
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(this->GetMoveHandleCount() * sizeof(Handle));
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} else {
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return 0;
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}
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}
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};
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class MapAliasDescriptor {
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public:
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enum class Attribute : u32 {
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Ipc = 0,
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NonSecureIpc = 1,
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NonDeviceIpc = 3,
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};
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private:
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static constexpr u32 SizeLowCount = 32;
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static constexpr u32 SizeHighCount = 4;
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static constexpr u32 AddressLowCount = 32;
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static constexpr u32 AddressMidCount = 4;
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constexpr u32 GetAddressMid(u64 address) {
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return static_cast<u32>(address >> AddressLowCount) & ((1U << AddressMidCount) - 1);
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}
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constexpr u32 GetAddressHigh(u64 address) {
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return static_cast<u32>(address >> (AddressLowCount + AddressMidCount));
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}
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private:
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union {
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std::array<u32, 3> raw;
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struct {
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// Define fields for the first two words.
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u32 size_low;
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u32 address_low;
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// Define fields for the packed descriptor word.
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union {
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BitField<0, 2, Attribute> attributes;
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BitField<2, 3, u32> address_high;
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BitField<5, 19, u32> reserved;
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BitField<24, 4, u32> size_high;
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BitField<28, 4, u32> address_mid;
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};
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};
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} m_data;
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public:
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constexpr MapAliasDescriptor() : m_data{} {}
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MapAliasDescriptor(const void* buffer, size_t _size, Attribute attr = Attribute::Ipc)
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: m_data{} {
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const u64 address = reinterpret_cast<u64>(buffer);
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const u64 size = static_cast<u64>(_size);
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m_data.size_low = static_cast<u32>(size);
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m_data.address_low = static_cast<u32>(address);
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m_data.attributes.Assign(attr);
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m_data.address_mid.Assign(GetAddressMid(address));
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m_data.size_high.Assign(static_cast<u32>(size >> SizeLowCount));
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m_data.address_high.Assign(GetAddressHigh(address));
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}
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MapAliasDescriptor(const MessageBuffer& buf, s32 index) : m_data{} {
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buf.Get(index, m_data.raw.data(), 3);
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}
|
||||
|
||||
constexpr uintptr_t GetAddress() const {
|
||||
return (static_cast<u64>((m_data.address_high << AddressMidCount) | m_data.address_mid)
|
||||
<< AddressLowCount) |
|
||||
m_data.address_low;
|
||||
}
|
||||
|
||||
constexpr uintptr_t GetSize() const {
|
||||
return (static_cast<u64>(m_data.size_high) << SizeLowCount) | m_data.size_low;
|
||||
}
|
||||
|
||||
constexpr Attribute GetAttribute() const {
|
||||
return m_data.attributes;
|
||||
}
|
||||
|
||||
constexpr const u32* GetData() const {
|
||||
return m_data.raw.data();
|
||||
}
|
||||
|
||||
static constexpr size_t GetDataSize() {
|
||||
return sizeof(m_data);
|
||||
}
|
||||
};
|
||||
|
||||
class PointerDescriptor {
|
||||
private:
|
||||
static constexpr u32 AddressLowCount = 32;
|
||||
static constexpr u32 AddressMidCount = 4;
|
||||
|
||||
constexpr u32 GetAddressMid(u64 address) {
|
||||
return static_cast<u32>(address >> AddressLowCount) & ((1u << AddressMidCount) - 1);
|
||||
}
|
||||
|
||||
constexpr u32 GetAddressHigh(u64 address) {
|
||||
return static_cast<u32>(address >> (AddressLowCount + AddressMidCount));
|
||||
}
|
||||
|
||||
private:
|
||||
union {
|
||||
std::array<u32, 2> raw;
|
||||
|
||||
struct {
|
||||
// Define fields for the packed descriptor word.
|
||||
union {
|
||||
BitField<0, 4, u32> index;
|
||||
BitField<4, 2, u32> reserved0;
|
||||
BitField<6, 3, u32> address_high;
|
||||
BitField<9, 3, u32> reserved1;
|
||||
BitField<12, 4, u32> address_mid;
|
||||
BitField<16, 16, u32> size;
|
||||
};
|
||||
|
||||
// Define fields for the second word.
|
||||
u32 address_low;
|
||||
};
|
||||
} m_data;
|
||||
|
||||
public:
|
||||
constexpr PointerDescriptor() : m_data{} {}
|
||||
|
||||
PointerDescriptor(const void* buffer, size_t size, s32 index) : m_data{} {
|
||||
const u64 address = reinterpret_cast<u64>(buffer);
|
||||
|
||||
m_data.index.Assign(index);
|
||||
m_data.address_high.Assign(GetAddressHigh(address));
|
||||
m_data.address_mid.Assign(GetAddressMid(address));
|
||||
m_data.size.Assign(static_cast<u32>(size));
|
||||
|
||||
m_data.address_low = static_cast<u32>(address);
|
||||
}
|
||||
|
||||
PointerDescriptor(const MessageBuffer& buf, s32 index) : m_data{} {
|
||||
buf.Get(index, m_data.raw.data(), 2);
|
||||
}
|
||||
|
||||
constexpr s32 GetIndex() const {
|
||||
return m_data.index;
|
||||
}
|
||||
|
||||
constexpr uintptr_t GetAddress() const {
|
||||
return (static_cast<u64>((m_data.address_high << AddressMidCount) | m_data.address_mid)
|
||||
<< AddressLowCount) |
|
||||
m_data.address_low;
|
||||
}
|
||||
|
||||
constexpr size_t GetSize() const {
|
||||
return m_data.size;
|
||||
}
|
||||
|
||||
constexpr const u32* GetData() const {
|
||||
return m_data.raw.data();
|
||||
}
|
||||
|
||||
static constexpr size_t GetDataSize() {
|
||||
return sizeof(m_data);
|
||||
}
|
||||
};
|
||||
|
||||
class ReceiveListEntry {
|
||||
private:
|
||||
static constexpr u32 AddressLowCount = 32;
|
||||
|
||||
constexpr u32 GetAddressHigh(u64 address) {
|
||||
return static_cast<u32>(address >> (AddressLowCount));
|
||||
}
|
||||
|
||||
private:
|
||||
union {
|
||||
std::array<u32, 2> raw;
|
||||
|
||||
struct {
|
||||
// Define fields for the first word.
|
||||
u32 address_low;
|
||||
|
||||
// Define fields for the packed descriptor word.
|
||||
union {
|
||||
BitField<0, 7, u32> address_high;
|
||||
BitField<7, 9, u32> reserved;
|
||||
BitField<16, 16, u32> size;
|
||||
};
|
||||
};
|
||||
} m_data;
|
||||
|
||||
public:
|
||||
constexpr ReceiveListEntry() : m_data{} {}
|
||||
|
||||
ReceiveListEntry(const void* buffer, size_t size) : m_data{} {
|
||||
const u64 address = reinterpret_cast<u64>(buffer);
|
||||
|
||||
m_data.address_low = static_cast<u32>(address);
|
||||
|
||||
m_data.address_high.Assign(GetAddressHigh(address));
|
||||
m_data.size.Assign(static_cast<u32>(size));
|
||||
}
|
||||
|
||||
ReceiveListEntry(u32 a, u32 b) : m_data{{a, b}} {}
|
||||
|
||||
constexpr uintptr_t GetAddress() const {
|
||||
return (static_cast<u64>(m_data.address_high) << AddressLowCount) | m_data.address_low;
|
||||
}
|
||||
|
||||
constexpr size_t GetSize() const {
|
||||
return m_data.size;
|
||||
}
|
||||
|
||||
constexpr const u32* GetData() const {
|
||||
return m_data.raw.data();
|
||||
}
|
||||
|
||||
static constexpr size_t GetDataSize() {
|
||||
return sizeof(m_data);
|
||||
}
|
||||
};
|
||||
|
||||
private:
|
||||
u32* m_buffer;
|
||||
size_t m_size;
|
||||
|
||||
public:
|
||||
constexpr MessageBuffer(u32* b, size_t sz) : m_buffer(b), m_size(sz) {}
|
||||
constexpr explicit MessageBuffer(u32* b) : m_buffer(b), m_size(MessageBufferSize) {}
|
||||
|
||||
constexpr void* GetBufferForDebug() const {
|
||||
return m_buffer;
|
||||
}
|
||||
|
||||
constexpr size_t GetBufferSize() const {
|
||||
return m_size;
|
||||
}
|
||||
|
||||
void Get(s32 index, u32* dst, size_t count) const {
|
||||
// Ensure that this doesn't get re-ordered.
|
||||
std::atomic_thread_fence(std::memory_order_seq_cst);
|
||||
|
||||
// Get the words.
|
||||
static_assert(sizeof(*dst) == sizeof(*m_buffer));
|
||||
|
||||
memcpy(dst, m_buffer + index, count * sizeof(*dst));
|
||||
}
|
||||
|
||||
s32 Set(s32 index, u32* src, size_t count) const {
|
||||
// Ensure that this doesn't get re-ordered.
|
||||
std::atomic_thread_fence(std::memory_order_seq_cst);
|
||||
|
||||
// Set the words.
|
||||
memcpy(m_buffer + index, src, count * sizeof(*src));
|
||||
|
||||
// Ensure that this doesn't get re-ordered.
|
||||
std::atomic_thread_fence(std::memory_order_seq_cst);
|
||||
|
||||
return static_cast<s32>(index + count);
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
const T& GetRaw(s32 index) const {
|
||||
return *reinterpret_cast<const T*>(m_buffer + index);
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
s32 SetRaw(s32 index, const T& val) const {
|
||||
*reinterpret_cast<const T*>(m_buffer + index) = val;
|
||||
return index + (Common::AlignUp(sizeof(val), sizeof(*m_buffer)) / sizeof(*m_buffer));
|
||||
}
|
||||
|
||||
void GetRawArray(s32 index, void* dst, size_t len) const {
|
||||
memcpy(dst, m_buffer + index, len);
|
||||
}
|
||||
|
||||
void SetRawArray(s32 index, const void* src, size_t len) const {
|
||||
memcpy(m_buffer + index, src, len);
|
||||
}
|
||||
|
||||
void SetNull() const {
|
||||
this->Set(MessageHeader());
|
||||
}
|
||||
|
||||
s32 Set(const MessageHeader& hdr) const {
|
||||
memcpy(m_buffer, hdr.GetData(), hdr.GetDataSize());
|
||||
return static_cast<s32>(hdr.GetDataSize() / sizeof(*m_buffer));
|
||||
}
|
||||
|
||||
s32 Set(const SpecialHeader& spc) const {
|
||||
const s32 index = static_cast<s32>(MessageHeader::GetDataSize() / sizeof(*m_buffer));
|
||||
memcpy(m_buffer + index, spc.GetHeader(), spc.GetHeaderSize());
|
||||
return static_cast<s32>(index + (spc.GetHeaderSize() / sizeof(*m_buffer)));
|
||||
}
|
||||
|
||||
s32 SetHandle(s32 index, const Handle& hnd) const {
|
||||
memcpy(m_buffer + index, std::addressof(hnd), sizeof(hnd));
|
||||
return static_cast<s32>(index + (sizeof(hnd) / sizeof(*m_buffer)));
|
||||
}
|
||||
|
||||
s32 SetProcessId(s32 index, const u64 pid) const {
|
||||
memcpy(m_buffer + index, std::addressof(pid), sizeof(pid));
|
||||
return static_cast<s32>(index + (sizeof(pid) / sizeof(*m_buffer)));
|
||||
}
|
||||
|
||||
s32 Set(s32 index, const MapAliasDescriptor& desc) const {
|
||||
memcpy(m_buffer + index, desc.GetData(), desc.GetDataSize());
|
||||
return static_cast<s32>(index + (desc.GetDataSize() / sizeof(*m_buffer)));
|
||||
}
|
||||
|
||||
s32 Set(s32 index, const PointerDescriptor& desc) const {
|
||||
memcpy(m_buffer + index, desc.GetData(), desc.GetDataSize());
|
||||
return static_cast<s32>(index + (desc.GetDataSize() / sizeof(*m_buffer)));
|
||||
}
|
||||
|
||||
s32 Set(s32 index, const ReceiveListEntry& desc) const {
|
||||
memcpy(m_buffer + index, desc.GetData(), desc.GetDataSize());
|
||||
return static_cast<s32>(index + (desc.GetDataSize() / sizeof(*m_buffer)));
|
||||
}
|
||||
|
||||
s32 Set(s32 index, const u32 val) const {
|
||||
memcpy(m_buffer + index, std::addressof(val), sizeof(val));
|
||||
return static_cast<s32>(index + (sizeof(val) / sizeof(*m_buffer)));
|
||||
}
|
||||
|
||||
Result GetAsyncResult() const {
|
||||
MessageHeader hdr(m_buffer);
|
||||
MessageHeader null{};
|
||||
if (memcmp(hdr.GetData(), null.GetData(), MessageHeader::GetDataSize()) != 0) [[unlikely]] {
|
||||
R_SUCCEED();
|
||||
}
|
||||
return Result(m_buffer[MessageHeader::GetDataSize() / sizeof(*m_buffer)]);
|
||||
}
|
||||
|
||||
void SetAsyncResult(Result res) const {
|
||||
const s32 index = this->Set(MessageHeader());
|
||||
const auto value = res.raw;
|
||||
memcpy(m_buffer + index, std::addressof(value), sizeof(value));
|
||||
}
|
||||
|
||||
u32 Get32(s32 index) const {
|
||||
return m_buffer[index];
|
||||
}
|
||||
|
||||
u64 Get64(s32 index) const {
|
||||
u64 value;
|
||||
memcpy(std::addressof(value), m_buffer + index, sizeof(value));
|
||||
return value;
|
||||
}
|
||||
|
||||
u64 GetProcessId(s32 index) const {
|
||||
return this->Get64(index);
|
||||
}
|
||||
|
||||
Handle GetHandle(s32 index) const {
|
||||
static_assert(sizeof(Handle) == sizeof(*m_buffer));
|
||||
return Handle(m_buffer[index]);
|
||||
}
|
||||
|
||||
static constexpr s32 GetSpecialDataIndex(const MessageHeader& hdr, const SpecialHeader& spc) {
|
||||
return static_cast<s32>((MessageHeader::GetDataSize() / sizeof(u32)) +
|
||||
(spc.GetHeaderSize() / sizeof(u32)));
|
||||
}
|
||||
|
||||
static constexpr s32 GetPointerDescriptorIndex(const MessageHeader& hdr,
|
||||
const SpecialHeader& spc) {
|
||||
return static_cast<s32>(GetSpecialDataIndex(hdr, spc) + (spc.GetDataSize() / sizeof(u32)));
|
||||
}
|
||||
|
||||
static constexpr s32 GetMapAliasDescriptorIndex(const MessageHeader& hdr,
|
||||
const SpecialHeader& spc) {
|
||||
return GetPointerDescriptorIndex(hdr, spc) +
|
||||
static_cast<s32>(hdr.GetPointerCount() * PointerDescriptor::GetDataSize() /
|
||||
sizeof(u32));
|
||||
}
|
||||
|
||||
static constexpr s32 GetRawDataIndex(const MessageHeader& hdr, const SpecialHeader& spc) {
|
||||
return GetMapAliasDescriptorIndex(hdr, spc) +
|
||||
static_cast<s32>(hdr.GetMapAliasCount() * MapAliasDescriptor::GetDataSize() /
|
||||
sizeof(u32));
|
||||
}
|
||||
|
||||
static constexpr s32 GetReceiveListIndex(const MessageHeader& hdr, const SpecialHeader& spc) {
|
||||
if (const s32 recv_list_index = hdr.GetReceiveListOffset()) {
|
||||
return recv_list_index;
|
||||
} else {
|
||||
return GetRawDataIndex(hdr, spc) + hdr.GetRawCount();
|
||||
}
|
||||
}
|
||||
|
||||
static constexpr size_t GetMessageBufferSize(const MessageHeader& hdr,
|
||||
const SpecialHeader& spc) {
|
||||
// Get the size of the plain message.
|
||||
size_t msg_size = GetReceiveListIndex(hdr, spc) * sizeof(u32);
|
||||
|
||||
// Add the size of the receive list.
|
||||
const auto count = hdr.GetReceiveListCount();
|
||||
switch (count) {
|
||||
case MessageHeader::ReceiveListCountType::None:
|
||||
break;
|
||||
case MessageHeader::ReceiveListCountType::ToMessageBuffer:
|
||||
break;
|
||||
case MessageHeader::ReceiveListCountType::ToSingleBuffer:
|
||||
msg_size += ReceiveListEntry::GetDataSize();
|
||||
break;
|
||||
default:
|
||||
msg_size += (static_cast<s32>(count) -
|
||||
static_cast<s32>(MessageHeader::ReceiveListCountType::CountOffset)) *
|
||||
ReceiveListEntry::GetDataSize();
|
||||
break;
|
||||
}
|
||||
|
||||
return msg_size;
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace Kernel
|
||||
Reference in New Issue