// mojo/public/mojom/base/binder.mojom.cc is auto generated by mojom_bindings_generator.py, do not edit // Copyright 2013 The Chromium Authors // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #if defined(__clang__) #pragma clang diagnostic push #pragma clang diagnostic ignored "-Wunused-private-field" #endif #include "mojo/public/mojom/base/binder.mojom.h" #include #include #include #include "base/debug/alias.h" #include "base/notreached.h" #include "base/run_loop.h" #include "base/strings/string_number_conversions.h" #include "base/task/thread_pool/thread_pool_instance.h" #include "base/trace_event/trace_event.h" #include "base/trace_event/typed_macros.h" #include "mojo/public/cpp/bindings/lib/default_construct_tag_internal.h" #include "mojo/public/cpp/bindings/lib/generated_code_util.h" #include "mojo/public/cpp/bindings/lib/message_internal.h" #include "mojo/public/cpp/bindings/lib/proxy_to_responder.h" #include "mojo/public/cpp/bindings/lib/send_message_helper.h" #include "mojo/public/cpp/bindings/lib/serialization.h" #include "mojo/public/cpp/bindings/lib/unserialized_message_context.h" #include "mojo/public/cpp/bindings/lib/validate_params.h" #include "mojo/public/cpp/bindings/lib/validation_errors.h" #include "mojo/public/cpp/bindings/mojo_buildflags.h" #include "mojo/public/cpp/bindings/urgent_message_scope.h" #include "mojo/public/interfaces/bindings/interface_control_messages.mojom.h" #include "third_party/perfetto/include/perfetto/tracing/traced_value.h" #include "mojo/public/mojom/base/binder.mojom-params-data.h" #include "mojo/public/mojom/base/binder.mojom-shared-message-ids.h" #include "mojo/public/mojom/base/binder.mojom-import-headers.h" #include "mojo/public/mojom/base/binder.mojom-test-utils.h" namespace mojo_base::mojom { // The declaration includes the definition on other builds. Binder::IPCStableHashFunction Binder::MessageToMethodInfo_(mojo::Message& message) { #if !BUILDFLAG(IS_FUCHSIA) switch (static_cast(message.name())) { case messages::Binder::kBind: { return &Binder::Bind_Sym::IPCStableHash; } } #endif // !BUILDFLAG(IS_FUCHSIA) return nullptr; } const char* Binder::MessageToMethodName_(mojo::Message& message) { #if BUILDFLAG(MOJO_TRACE_ENABLED) bool is_response = message.has_flag(mojo::Message::kFlagIsResponse); if (!is_response) { switch (static_cast(message.name())) { case messages::Binder::kBind: return "Receive mojo_base::mojom::Binder::Bind"; } } else { switch (static_cast(message.name())) { case messages::Binder::kBind: return "Receive reply mojo_base::mojom::Binder::Bind"; } } return "Receive unknown mojo message"; #else bool is_response = message.has_flag(mojo::Message::kFlagIsResponse); if (is_response) { return "Receive mojo reply"; } else { return "Receive mojo message"; } #endif // BUILDFLAG(MOJO_TRACE_ENABLED) } #if !BUILDFLAG(IS_FUCHSIA) uint32_t Binder::Bind_Sym::IPCStableHash() { // This method's address is used for identifying the mojo method name after // symbolization. So each IPCStableHash should have a unique address. // We cannot use NO_CODE_FOLDING() here - it relies on the uniqueness of // __LINE__ value, which is not unique across different mojo modules. // The code below is very similar to NO_CODE_FOLDING, but it uses a unique // hash instead of __LINE__. static constexpr uint32_t kHash = 0x2b342f41; // IPCStableHash for mojo_base::mojom::Binder::Bind const uint32_t hash = kHash; base::debug::Alias(&hash); return hash; } # endif // !BUILDFLAG(IS_FUCHSIA) BinderProxy::BinderProxy(mojo::MessageReceiverWithResponder* receiver) : receiver_(receiver) { } void BinderProxy::Bind( ::mojo::GenericPendingReceiver in_receiver) { #if BUILDFLAG(MOJO_TRACE_ENABLED) TRACE_EVENT1( "mojom", "Send mojo_base::mojom::Binder::Bind", "input_parameters", [&](perfetto::TracedValue context){ auto dict = std::move(context).WriteDictionary(); perfetto::WriteIntoTracedValueWithFallback( dict.AddItem("receiver"), in_receiver, ""); }); #endif const bool kExpectsResponse = false; const bool kIsSync = false; const bool kAllowInterrupt = true; const bool is_urgent = false; const uint32_t kFlags = ((kExpectsResponse) ? mojo::Message::kFlagExpectsResponse : 0) | ((kIsSync) ? mojo::Message::kFlagIsSync : 0) | ((kAllowInterrupt) ? 0 : mojo::Message::kFlagNoInterrupt) | ((is_urgent) ? mojo::Message::kFlagIsUrgent : 0); const size_t estimated_payload_size = 0; mojo::Message message( std::to_underlying(messages::Binder::kBind), kFlags, estimated_payload_size); mojo::internal::MessageFragment< ::mojo_base::mojom::internal::Binder_Bind_Params_Data> params( message); params.Allocate(); mojo::internal::MessageFragment< typename decltype(params->receiver)::BaseType> receiver_fragment( params.message()); mojo::internal::Serialize<::mojo_base::mojom::GenericPendingReceiverDataView>( in_receiver, receiver_fragment); params->receiver.Set( receiver_fragment.is_null() ? nullptr : receiver_fragment.data()); MOJO_INTERNAL_CHECK_SERIALIZATION( mojo::internal::SendValidation::kDefault, !(params->receiver.is_null()), mojo::internal::VALIDATION_ERROR_UNEXPECTED_NULL_POINTER, "null receiver in Binder.Bind request"); #if defined(ENABLE_IPC_FUZZER) message.set_interface_name(Binder::Name_); message.set_method_name("Bind"); #endif // This return value may be ignored as false implies the Connector has // encountered an error, which will be visible through other means. ::mojo::internal::SendMojoMessage(*receiver_, message); } // static bool BinderStubDispatch::Accept( Binder* impl, mojo::Message* message) { switch (static_cast(message->header()->name)) { case messages::Binder::kBind: { DCHECK(message->is_serialized()); internal::Binder_Bind_Params_Data* params = reinterpret_cast( message->mutable_payload()); // Validation for Binder.0 bool success = true; ::mojo::GenericPendingReceiver p_receiver{}; Binder_Bind_ParamsDataView input_data_view(params, message); if (success && !input_data_view.ReadReceiver(&p_receiver)) success = false; if (!success) { ReportValidationErrorForMessage( message, mojo::internal::VALIDATION_ERROR_DESERIALIZATION_FAILED, Binder::Name_, 0, false); return false; } // A null |impl| means no implementation was bound. DCHECK(impl); impl->Bind( std::move(p_receiver)); return true; } } return false; } // static bool BinderStubDispatch::AcceptWithResponder( Binder* impl, mojo::Message* message, std::unique_ptr responder) { [[maybe_unused]] const bool message_is_sync = message->has_flag(mojo::Message::kFlagIsSync); [[maybe_unused]] const uint64_t request_id = message->request_id(); switch (static_cast(message->header()->name)) { case messages::Binder::kBind: { break; } } return false; } namespace { } // namespace static const mojo::internal::GenericValidationInfo kBinderValidationInfo[] = { { &internal::Binder_Bind_Params_Data::Validate, nullptr /* no response */}, }; bool BinderRequestValidator::Accept(mojo::Message* message) { return mojo::internal::ValidateRequestGenericPacked( message, ::mojo_base::mojom::Binder::Name_, kBinderValidationInfo); } } // mojo_base::mojom namespace mojo { } // namespace mojo // Symbols declared in the -test-utils.h header are defined here instead of a // separate .cc file to save compile time. namespace mojo_base::mojom { void BinderInterceptorForTesting::Bind(::mojo::GenericPendingReceiver receiver) { GetForwardingInterface()->Bind( std::move(receiver) ); } BinderAsyncWaiter::BinderAsyncWaiter( Binder* proxy) : proxy_(proxy) {} BinderAsyncWaiter::~BinderAsyncWaiter() = default; } // mojo_base::mojom #if defined(__clang__) #pragma clang diagnostic pop #endif