hle: kernel: Implement CloneCurrentObject and improve session management.
This commit is contained in:
parent
c40e7593f5
commit
7361eac10f
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@ -86,10 +86,8 @@ public:
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// The entire size of the raw data section in u32 units, including the 16 bytes of mandatory
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// padding.
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u32 raw_data_size = ctx.IsTipc()
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? normal_params_size - 1
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: sizeof(IPC::DataPayloadHeader) / 4 + 4 + normal_params_size;
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u32 raw_data_size = ctx.write_size =
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ctx.IsTipc() ? normal_params_size - 1 : normal_params_size;
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u32 num_handles_to_move{};
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u32 num_domain_objects{};
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const bool always_move_handles{
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@ -101,16 +99,20 @@ public:
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}
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if (ctx.Session()->IsDomain()) {
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raw_data_size += static_cast<u32>(sizeof(DomainMessageHeader) / 4 + num_domain_objects);
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raw_data_size +=
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static_cast<u32>(sizeof(DomainMessageHeader) / sizeof(u32) + num_domain_objects);
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ctx.write_size += num_domain_objects;
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}
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if (ctx.IsTipc()) {
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header.type.Assign(ctx.GetCommandType());
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} else {
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raw_data_size += static_cast<u32>(sizeof(IPC::DataPayloadHeader) / sizeof(u32) + 4 +
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normal_params_size);
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}
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ctx.data_size = static_cast<u32>(raw_data_size);
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header.data_size.Assign(static_cast<u32>(raw_data_size));
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if (num_handles_to_copy != 0 || num_handles_to_move != 0) {
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header.data_size.Assign(raw_data_size);
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if (num_handles_to_copy || num_handles_to_move) {
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header.enable_handle_descriptor.Assign(1);
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}
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PushRaw(header);
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@ -143,7 +145,8 @@ public:
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data_payload_index = index;
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ctx.data_payload_offset = index;
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ctx.domain_offset = index + raw_data_size / 4;
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ctx.write_size += index;
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ctx.domain_offset = static_cast<u32>(index + raw_data_size / sizeof(u32));
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}
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template <class T>
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@ -404,7 +407,7 @@ public:
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std::shared_ptr<T> PopIpcInterface() {
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ASSERT(context->Session()->IsDomain());
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ASSERT(context->GetDomainMessageHeader().input_object_count > 0);
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return context->GetDomainRequestHandler<T>(Pop<u32>() - 1);
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return context->GetDomainHandler<T>(Pop<u32>() - 1);
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}
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};
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@ -35,11 +35,11 @@ SessionRequestHandler::SessionRequestHandler() = default;
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SessionRequestHandler::~SessionRequestHandler() = default;
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void SessionRequestHandler::ClientConnected(KServerSession* session) {
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session->SetHleHandler(shared_from_this());
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session->SetSessionHandler(shared_from_this());
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}
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void SessionRequestHandler::ClientDisconnected(KServerSession* session) {
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session->SetHleHandler(nullptr);
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session->SetSessionHandler(nullptr);
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}
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HLERequestContext::HLERequestContext(KernelCore& kernel_, Core::Memory::Memory& memory_,
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@ -186,18 +186,6 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(KThread& requesting_t
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auto& owner_process = *requesting_thread.GetOwnerProcess();
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auto& handle_table = owner_process.GetHandleTable();
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// The data_size already includes the payload header, the padding and the domain header.
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std::size_t size{};
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if (IsTipc()) {
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size = cmd_buf.size();
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} else {
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size = data_payload_offset + data_size - sizeof(IPC::DataPayloadHeader) / sizeof(u32) - 4;
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if (Session()->IsDomain()) {
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size -= sizeof(IPC::DomainMessageHeader) / sizeof(u32);
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}
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}
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for (auto& object : copy_objects) {
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Handle handle{};
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if (object) {
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@ -222,7 +210,7 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(KThread& requesting_t
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if (Session()->IsDomain()) {
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current_offset = domain_offset - static_cast<u32>(domain_objects.size());
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for (const auto& object : domain_objects) {
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server_session->AppendDomainRequestHandler(object);
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server_session->AppendDomainHandler(object);
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cmd_buf[current_offset++] =
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static_cast<u32_le>(server_session->NumDomainRequestHandlers());
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}
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@ -230,7 +218,7 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(KThread& requesting_t
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// Copy the translated command buffer back into the thread's command buffer area.
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memory.WriteBlock(owner_process, requesting_thread.GetTLSAddress(), cmd_buf.data(),
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size * sizeof(u32));
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write_size * sizeof(u32));
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return RESULT_SUCCESS;
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}
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@ -12,6 +12,8 @@
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#include <type_traits>
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#include <vector>
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#include <boost/container/small_vector.hpp>
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#include "common/assert.h"
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#include "common/common_types.h"
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#include "common/concepts.h"
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#include "common/swap.h"
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@ -84,6 +86,69 @@ public:
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void ClientDisconnected(KServerSession* session);
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};
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using SessionRequestHandlerPtr = std::shared_ptr<SessionRequestHandler>;
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/**
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* Manages the underlying HLE requests for a session, and whether (or not) the session should be
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* treated as a domain. This is managed separately from server sessions, as this state is shared
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* when objects are cloned.
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*/
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class SessionRequestManager final {
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public:
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SessionRequestManager() = default;
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bool IsDomain() const {
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return is_domain;
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}
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void ConvertToDomain() {
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domain_handlers = {session_handler};
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is_domain = true;
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}
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std::size_t DomainHandlerCount() const {
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return domain_handlers.size();
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}
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bool HasSessionHandler() const {
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return session_handler != nullptr;
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}
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SessionRequestHandler& SessionHandler() {
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return *session_handler;
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}
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const SessionRequestHandler& SessionHandler() const {
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return *session_handler;
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}
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void CloseDomainHandler(std::size_t index) {
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if (index < DomainHandlerCount()) {
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domain_handlers[index] = nullptr;
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} else {
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UNREACHABLE_MSG("Unexpected handler index {}", index);
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}
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}
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SessionRequestHandlerPtr DomainHandler(std::size_t index) const {
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ASSERT_MSG(index < DomainHandlerCount(), "Unexpected handler index {}", index);
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return domain_handlers.at(index);
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}
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void AppendDomainHandler(SessionRequestHandlerPtr&& handler) {
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domain_handlers.emplace_back(std::move(handler));
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}
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void SetSessionHandler(SessionRequestHandlerPtr&& handler) {
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session_handler = std::move(handler);
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}
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private:
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bool is_domain{};
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SessionRequestHandlerPtr session_handler;
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std::vector<SessionRequestHandlerPtr> domain_handlers;
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};
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/**
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* Class containing information about an in-flight IPC request being handled by an HLE service
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* implementation. Services should avoid using old global APIs (e.g. Kernel::GetCommandBuffer()) and
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@ -239,18 +304,17 @@ public:
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copy_objects.emplace_back(object);
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}
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void AddDomainObject(std::shared_ptr<SessionRequestHandler> object) {
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void AddDomainObject(SessionRequestHandlerPtr object) {
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domain_objects.emplace_back(std::move(object));
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}
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template <typename T>
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std::shared_ptr<T> GetDomainRequestHandler(std::size_t index) const {
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return std::static_pointer_cast<T>(domain_request_handlers.at(index));
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std::shared_ptr<T> GetDomainHandler(std::size_t index) const {
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return std::static_pointer_cast<T>(manager->DomainHandler(index));
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}
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void SetDomainRequestHandlers(
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const std::vector<std::shared_ptr<SessionRequestHandler>>& handlers) {
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domain_request_handlers = handlers;
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void SetSessionRequestManager(std::shared_ptr<SessionRequestManager> manager_) {
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manager = std::move(manager_);
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}
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/// Clears the list of objects so that no lingering objects are written accidentally to the
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@ -297,7 +361,7 @@ private:
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boost::container::small_vector<Handle, 8> copy_handles;
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boost::container::small_vector<KAutoObject*, 8> move_objects;
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boost::container::small_vector<KAutoObject*, 8> copy_objects;
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boost::container::small_vector<std::shared_ptr<SessionRequestHandler>, 8> domain_objects;
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boost::container::small_vector<SessionRequestHandlerPtr, 8> domain_objects;
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std::optional<IPC::CommandHeader> command_header;
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std::optional<IPC::HandleDescriptorHeader> handle_descriptor_header;
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@ -311,12 +375,12 @@ private:
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u32_le command{};
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u64 pid{};
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u32 write_size{};
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u32 data_payload_offset{};
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u32 handles_offset{};
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u32 domain_offset{};
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u32 data_size{};
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std::vector<std::shared_ptr<SessionRequestHandler>> domain_request_handlers;
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std::shared_ptr<SessionRequestManager> manager;
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bool is_thread_waiting{};
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KernelCore& kernel;
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@ -31,6 +31,9 @@ public:
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const KPort* GetParent() const {
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return parent;
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}
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KPort* GetParent() {
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return parent;
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}
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s32 GetNumSessions() const {
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return num_sessions;
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@ -56,11 +56,8 @@ ResultCode KPort::EnqueueSession(KServerSession* session) {
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R_UNLESS(state == State::Normal, ResultPortClosed);
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if (server.HasHLEHandler()) {
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server.GetHLEHandler()->ClientConnected(session);
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} else {
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server.EnqueueSession(session);
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}
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server.GetSessionRequestHandler()->ClientConnected(session);
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server.EnqueueSession(session);
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return RESULT_SUCCESS;
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}
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@ -32,26 +32,24 @@ public:
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explicit KServerPort(KernelCore& kernel_);
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virtual ~KServerPort() override;
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using HLEHandler = std::shared_ptr<SessionRequestHandler>;
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void Initialize(KPort* parent_, std::string&& name_);
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/// Whether or not this server port has an HLE handler available.
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bool HasHLEHandler() const {
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return hle_handler != nullptr;
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bool HasSessionRequestHandler() const {
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return session_handler != nullptr;
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}
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/// Gets the HLE handler for this port.
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HLEHandler GetHLEHandler() const {
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return hle_handler;
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SessionRequestHandlerPtr GetSessionRequestHandler() const {
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return session_handler;
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}
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/**
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* Sets the HLE handler template for the port. ServerSessions crated by connecting to this port
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* will inherit a reference to this handler.
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*/
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void SetHleHandler(HLEHandler hle_handler_) {
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hle_handler = std::move(hle_handler_);
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void SetSessionHandler(SessionRequestHandlerPtr&& handler) {
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session_handler = std::move(handler);
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}
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void EnqueueSession(KServerSession* pending_session);
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private:
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SessionList session_list;
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HLEHandler hle_handler;
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SessionRequestHandlerPtr session_handler;
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KPort* parent{};
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};
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@ -23,7 +23,8 @@
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namespace Kernel {
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KServerSession::KServerSession(KernelCore& kernel_) : KSynchronizationObject{kernel_} {}
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KServerSession::KServerSession(KernelCore& kernel_)
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: KSynchronizationObject{kernel_}, manager{std::make_shared<SessionRequestManager>()} {}
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KServerSession::~KServerSession() {
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kernel.ReleaseServiceThread(service_thread);
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@ -43,14 +44,8 @@ void KServerSession::Destroy() {
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}
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void KServerSession::OnClientClosed() {
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// We keep a shared pointer to the hle handler to keep it alive throughout
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// the call to ClientDisconnected, as ClientDisconnected invalidates the
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// hle_handler member itself during the course of the function executing.
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std::shared_ptr<SessionRequestHandler> handler = hle_handler;
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if (handler) {
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// Note that after this returns, this server session's hle_handler is
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// invalidated (set to null).
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handler->ClientDisconnected(this);
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if (manager->HasSessionHandler()) {
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manager->SessionHandler().ClientDisconnected(this);
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}
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}
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@ -66,12 +61,12 @@ bool KServerSession::IsSignaled() const {
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return false;
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}
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void KServerSession::AppendDomainRequestHandler(std::shared_ptr<SessionRequestHandler> handler) {
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domain_request_handlers.push_back(std::move(handler));
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void KServerSession::AppendDomainHandler(SessionRequestHandlerPtr handler) {
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manager->AppendDomainHandler(std::move(handler));
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}
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std::size_t KServerSession::NumDomainRequestHandlers() const {
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return domain_request_handlers.size();
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return manager->DomainHandlerCount();
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}
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ResultCode KServerSession::HandleDomainSyncRequest(Kernel::HLERequestContext& context) {
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@ -80,14 +75,14 @@ ResultCode KServerSession::HandleDomainSyncRequest(Kernel::HLERequestContext& co
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}
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// Set domain handlers in HLE context, used for domain objects (IPC interfaces) as inputs
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context.SetDomainRequestHandlers(domain_request_handlers);
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context.SetSessionRequestManager(manager);
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// If there is a DomainMessageHeader, then this is CommandType "Request"
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const auto& domain_message_header = context.GetDomainMessageHeader();
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const u32 object_id{domain_message_header.object_id};
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switch (domain_message_header.command) {
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case IPC::DomainMessageHeader::CommandType::SendMessage:
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if (object_id > domain_request_handlers.size()) {
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if (object_id > manager->DomainHandlerCount()) {
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LOG_CRITICAL(IPC,
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"object_id {} is too big! This probably means a recent service call "
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"to {} needed to return a new interface!",
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UNREACHABLE();
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return RESULT_SUCCESS; // Ignore error if asserts are off
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}
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return domain_request_handlers[object_id - 1]->HandleSyncRequest(*this, context);
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return manager->DomainHandler(object_id - 1)->HandleSyncRequest(*this, context);
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case IPC::DomainMessageHeader::CommandType::CloseVirtualHandle: {
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LOG_DEBUG(IPC, "CloseVirtualHandle, object_id=0x{:08X}", object_id);
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domain_request_handlers[object_id - 1] = nullptr;
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manager->CloseDomainHandler(object_id - 1);
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IPC::ResponseBuilder rb{context, 2};
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rb.Push(RESULT_SUCCESS);
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@ -133,14 +128,14 @@ ResultCode KServerSession::CompleteSyncRequest(HLERequestContext& context) {
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if (IsDomain() && context.HasDomainMessageHeader()) {
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result = HandleDomainSyncRequest(context);
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// If there is no domain header, the regular session handler is used
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} else if (hle_handler != nullptr) {
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} else if (manager->HasSessionHandler()) {
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// If this ServerSession has an associated HLE handler, forward the request to it.
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result = hle_handler->HandleSyncRequest(*this, context);
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result = manager->SessionHandler().HandleSyncRequest(*this, context);
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}
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if (convert_to_domain) {
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ASSERT_MSG(IsSession(), "ServerSession is already a domain instance.");
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domain_request_handlers = {hle_handler};
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ASSERT_MSG(!IsDomain(), "ServerSession is already a domain instance.");
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manager->ConvertToDomain();
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convert_to_domain = false;
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}
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@ -12,6 +12,7 @@
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#include <boost/intrusive/list.hpp>
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#include "common/threadsafe_queue.h"
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#include "core/hle/kernel/hle_ipc.h"
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#include "core/hle/kernel/k_synchronization_object.h"
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#include "core/hle/kernel/service_thread.h"
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#include "core/hle/result.h"
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@ -64,8 +65,8 @@ public:
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* instead of the regular IPC machinery. (The regular IPC machinery is currently not
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* implemented.)
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*/
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void SetHleHandler(std::shared_ptr<SessionRequestHandler> hle_handler_) {
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hle_handler = std::move(hle_handler_);
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void SetSessionHandler(SessionRequestHandlerPtr handler) {
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manager->SetSessionHandler(std::move(handler));
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}
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/**
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@ -82,7 +83,7 @@ public:
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/// Adds a new domain request handler to the collection of request handlers within
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/// this ServerSession instance.
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void AppendDomainRequestHandler(std::shared_ptr<SessionRequestHandler> handler);
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void AppendDomainHandler(SessionRequestHandlerPtr handler);
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/// Retrieves the total number of domain request handlers that have been
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/// appended to this ServerSession instance.
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@ -90,12 +91,7 @@ public:
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/// Returns true if the session has been converted to a domain, otherwise False
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bool IsDomain() const {
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return !IsSession();
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}
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/// Returns true if this session has not been converted to a domain, otherwise false.
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bool IsSession() const {
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return domain_request_handlers.empty();
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return manager->IsDomain();
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}
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/// Converts the session to a domain at the end of the current command
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@ -103,6 +99,21 @@ public:
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convert_to_domain = true;
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}
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/// Gets the session request manager, which forwards requests to the underlying service
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std::shared_ptr<SessionRequestManager>& GetSessionRequestManager() {
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return manager;
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}
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/// Gets the session request manager, which forwards requests to the underlying service
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const std::shared_ptr<SessionRequestManager>& GetSessionRequestManager() const {
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return manager;
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}
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/// Sets the session request manager, which forwards requests to the underlying service
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void SetSessionRequestManager(std::shared_ptr<SessionRequestManager> manager_) {
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manager = std::move(manager_);
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}
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|
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private:
|
||||
/// Queues a sync request from the emulated application.
|
||||
ResultCode QueueSyncRequest(KThread* thread, Core::Memory::Memory& memory);
|
||||
|
@ -114,11 +125,8 @@ private:
|
|||
/// object handle.
|
||||
ResultCode HandleDomainSyncRequest(Kernel::HLERequestContext& context);
|
||||
|
||||
/// This session's HLE request handler (applicable when not a domain)
|
||||
std::shared_ptr<SessionRequestHandler> hle_handler;
|
||||
|
||||
/// This is the list of domain request handlers (after conversion to a domain)
|
||||
std::vector<std::shared_ptr<SessionRequestHandler>> domain_request_handlers;
|
||||
/// This session's HLE request handlers
|
||||
std::shared_ptr<SessionRequestManager> manager;
|
||||
|
||||
/// When set to True, converts the session to a domain at the end of the command
|
||||
bool convert_to_domain{};
|
||||
|
|
|
@ -66,6 +66,10 @@ public:
|
|||
return port;
|
||||
}
|
||||
|
||||
KClientPort* GetParent() {
|
||||
return port;
|
||||
}
|
||||
|
||||
private:
|
||||
enum class State : u8 {
|
||||
Invalid = 0,
|
||||
|
|
|
@ -107,7 +107,7 @@ void ServiceFrameworkBase::InstallAsService(SM::ServiceManager& service_manager)
|
|||
ASSERT(!port_installed);
|
||||
|
||||
auto port = service_manager.RegisterService(service_name, max_sessions).Unwrap();
|
||||
port->SetHleHandler(shared_from_this());
|
||||
port->SetSessionHandler(shared_from_this());
|
||||
port_installed = true;
|
||||
}
|
||||
|
||||
|
@ -118,7 +118,7 @@ Kernel::KClientPort& ServiceFrameworkBase::CreatePort(Kernel::KernelCore& kernel
|
|||
|
||||
auto* port = Kernel::KPort::Create(kernel);
|
||||
port->Initialize(max_sessions, false, service_name);
|
||||
port->GetServerPort().SetHleHandler(shared_from_this());
|
||||
port->GetServerPort().SetSessionHandler(shared_from_this());
|
||||
|
||||
port_installed = true;
|
||||
|
||||
|
|
|
@ -4,8 +4,13 @@
|
|||
|
||||
#include "common/assert.h"
|
||||
#include "common/logging/log.h"
|
||||
#include "core/core.h"
|
||||
#include "core/hle/ipc_helpers.h"
|
||||
#include "core/hle/kernel/k_client_port.h"
|
||||
#include "core/hle/kernel/k_client_session.h"
|
||||
#include "core/hle/kernel/k_port.h"
|
||||
#include "core/hle/kernel/k_scoped_resource_reservation.h"
|
||||
#include "core/hle/kernel/k_server_port.h"
|
||||
#include "core/hle/kernel/k_server_session.h"
|
||||
#include "core/hle/kernel/k_session.h"
|
||||
#include "core/hle/service/sm/controller.h"
|
||||
|
@ -13,7 +18,7 @@
|
|||
namespace Service::SM {
|
||||
|
||||
void Controller::ConvertCurrentObjectToDomain(Kernel::HLERequestContext& ctx) {
|
||||
ASSERT_MSG(ctx.Session()->IsSession(), "Session is already a domain");
|
||||
ASSERT_MSG(!ctx.Session()->IsDomain(), "Session is already a domain");
|
||||
LOG_DEBUG(Service, "called, server_session={}", ctx.Session()->GetId());
|
||||
ctx.Session()->ConvertToDomain();
|
||||
|
||||
|
@ -29,16 +34,36 @@ void Controller::CloneCurrentObject(Kernel::HLERequestContext& ctx) {
|
|||
|
||||
LOG_DEBUG(Service, "called");
|
||||
|
||||
auto session = ctx.Session()->GetParent();
|
||||
auto& kernel = system.Kernel();
|
||||
auto* session = ctx.Session()->GetParent();
|
||||
auto* port = session->GetParent()->GetParent();
|
||||
|
||||
// Open a reference to the session to simulate a new one being created.
|
||||
session->Open();
|
||||
session->GetClientSession().Open();
|
||||
session->GetServerSession().Open();
|
||||
// Reserve a new session from the process resource limit.
|
||||
Kernel::KScopedResourceReservation session_reservation(
|
||||
kernel.CurrentProcess()->GetResourceLimit(), Kernel::LimitableResource::Sessions);
|
||||
if (!session_reservation.Succeeded()) {
|
||||
IPC::ResponseBuilder rb{ctx, 2};
|
||||
rb.Push(Kernel::ResultLimitReached);
|
||||
}
|
||||
|
||||
// Create a new session.
|
||||
auto* clone = Kernel::KSession::Create(kernel);
|
||||
clone->Initialize(&port->GetClientPort(), session->GetName());
|
||||
|
||||
// Commit the session reservation.
|
||||
session_reservation.Commit();
|
||||
|
||||
// Enqueue the session with the named port.
|
||||
port->EnqueueSession(&clone->GetServerSession());
|
||||
|
||||
// Set the session request manager.
|
||||
clone->GetServerSession().SetSessionRequestManager(
|
||||
session->GetServerSession().GetSessionRequestManager());
|
||||
|
||||
// We succeeded.
|
||||
IPC::ResponseBuilder rb{ctx, 2, 0, 1, IPC::ResponseBuilder::Flags::AlwaysMoveHandles};
|
||||
rb.Push(RESULT_SUCCESS);
|
||||
rb.PushMoveObjects(session->GetClientSession());
|
||||
rb.PushMoveObjects(clone->GetClientSession());
|
||||
}
|
||||
|
||||
void Controller::CloneCurrentObjectEx(Kernel::HLERequestContext& ctx) {
|
||||
|
|
|
@ -150,31 +150,31 @@ ResultVal<Kernel::KClientSession*> SM::GetServiceImpl(Kernel::HLERequestContext&
|
|||
IPC::RequestParser rp{ctx};
|
||||
std::string name(PopServiceName(rp));
|
||||
|
||||
// Find the named port.
|
||||
auto result = service_manager.GetServicePort(name);
|
||||
if (result.Failed()) {
|
||||
LOG_ERROR(Service_SM, "called service={} -> error 0x{:08X}", name, result.Code().raw);
|
||||
return result.Code();
|
||||
}
|
||||
|
||||
auto* port = result.Unwrap();
|
||||
|
||||
// Reserve a new session from the process resource limit.
|
||||
Kernel::KScopedResourceReservation session_reservation(
|
||||
kernel.CurrentProcess()->GetResourceLimit(), Kernel::LimitableResource::Sessions);
|
||||
R_UNLESS(session_reservation.Succeeded(), Kernel::ResultLimitReached);
|
||||
|
||||
// Create a new session.
|
||||
auto* session = Kernel::KSession::Create(kernel);
|
||||
session->Initialize(&port->GetClientPort(), std::move(name));
|
||||
|
||||
// Commit the session reservation.
|
||||
session_reservation.Commit();
|
||||
|
||||
if (port->GetServerPort().GetHLEHandler()) {
|
||||
port->GetServerPort().GetHLEHandler()->ClientConnected(&session->GetServerSession());
|
||||
} else {
|
||||
port->EnqueueSession(&session->GetServerSession());
|
||||
}
|
||||
// Enqueue the session with the named port.
|
||||
port->EnqueueSession(&session->GetServerSession());
|
||||
|
||||
LOG_DEBUG(Service_SM, "called service={} -> session={}", name, session->GetId());
|
||||
|
||||
return MakeResult(&session->GetClientSession());
|
||||
}
|
||||
|
||||
|
|
|
@ -73,7 +73,7 @@ public:
|
|||
if (port == nullptr) {
|
||||
return nullptr;
|
||||
}
|
||||
return std::static_pointer_cast<T>(port->GetServerPort().GetHLEHandler());
|
||||
return std::static_pointer_cast<T>(port->GetServerPort().GetSessionRequestHandler());
|
||||
}
|
||||
|
||||
void InvokeControlRequest(Kernel::HLERequestContext& context);
|
||||
|
|
Reference in New Issue