Merge "Rust binder rpc test & service implementation for trusty" into main am:... (e5f3a978) · Commits · e / os / android_frameworks_native

libs/binder/trusty/rust/binder_rpc_test/binder_rpc_test_session/lib.rs

0 → 100644

+174 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2023 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		use binder::{Interface, ParcelFileDescriptor, SpIBinder, Status, StatusCode, Strong};
		use binder_rpc_test_aidl::aidl::IBinderRpcCallback::IBinderRpcCallback;
		use binder_rpc_test_aidl::aidl::IBinderRpcSession::IBinderRpcSession;
		use binder_rpc_test_aidl::aidl::IBinderRpcTest::IBinderRpcTest;
		use std::sync::Mutex;

		static G_NUM: Mutex<i32> = Mutex::new(0);

		#[derive(Debug, Default)]
		pub struct MyBinderRpcSession {
		name: String,
		}

		impl MyBinderRpcSession {
		pub fn new(name: &str) -> Self {
		Self::increment_instance_count();
		Self { name: name.to_string() }
		}

		pub fn get_instance_count() -> i32 {
		*G_NUM.lock().unwrap()
		}

		fn increment_instance_count() {
		*G_NUM.lock().unwrap() += 1;
		}

		fn decrement_instance_count() {
		*G_NUM.lock().unwrap() -= 1;
		}
		}

		impl Drop for MyBinderRpcSession {
		fn drop(&mut self) {
		MyBinderRpcSession::decrement_instance_count();
		}
		}

		impl Interface for MyBinderRpcSession {}

		impl IBinderRpcSession for MyBinderRpcSession {
		fn getName(&self) -> Result<String, Status> {
		Ok(self.name.clone())
		}
		}

		impl IBinderRpcTest for MyBinderRpcSession {
		fn sendString(&self, _: &str) -> Result<(), Status> {
		todo!()
		}
		fn doubleString(&self, _s: &str) -> Result<String, Status> {
		todo!()
		}
		fn getClientPort(&self) -> Result<i32, Status> {
		todo!()
		}
		fn countBinders(&self) -> Result<Vec<i32>, Status> {
		todo!()
		}
		fn getNullBinder(&self) -> Result<SpIBinder, Status> {
		todo!()
		}
		fn pingMe(&self, _binder: &SpIBinder) -> Result<i32, Status> {
		todo!()
		}
		fn repeatBinder(&self, _binder: Option<&SpIBinder>) -> Result<Option<SpIBinder>, Status> {
		todo!()
		}
		fn holdBinder(&self, _binder: Option<&SpIBinder>) -> Result<(), Status> {
		todo!()
		}
		fn getHeldBinder(&self) -> Result<Option<SpIBinder>, Status> {
		todo!()
		}
		fn nestMe(
		&self,
		binder: &Strong<(dyn IBinderRpcTest + 'static)>,
		count: i32,
		) -> Result<(), Status> {
		if count < 0 {
		Ok(())
		} else {
		binder.nestMe(binder, count - 1)
		}
		}
		fn alwaysGiveMeTheSameBinder(&self) -> Result<SpIBinder, Status> {
		todo!()
		}
		fn openSession(
		&self,
		_name: &str,
		) -> Result<Strong<(dyn IBinderRpcSession + 'static)>, Status> {
		todo!()
		}
		fn getNumOpenSessions(&self) -> Result<i32, Status> {
		todo!()
		}
		fn lock(&self) -> Result<(), Status> {
		todo!()
		}
		fn unlockInMsAsync(&self, _: i32) -> Result<(), Status> {
		todo!()
		}
		fn lockUnlock(&self) -> Result<(), Status> {
		todo!()
		}
		fn sleepMs(&self, _: i32) -> Result<(), Status> {
		todo!()
		}
		fn sleepMsAsync(&self, _: i32) -> Result<(), Status> {
		todo!()
		}
		fn doCallback(
		&self,
		_: &Strong<(dyn IBinderRpcCallback + 'static)>,
		_: bool,
		_: bool,
		_: &str,
		) -> Result<(), Status> {
		todo!()
		}
		fn doCallbackAsync(
		&self,
		_: &Strong<(dyn IBinderRpcCallback + 'static)>,
		_: bool,
		_: bool,
		_: &str,
		) -> Result<(), Status> {
		todo!()
		}
		fn die(&self, _: bool) -> Result<(), Status> {
		Err(Status::from(StatusCode::UNKNOWN_TRANSACTION))
		}
		fn scheduleShutdown(&self) -> Result<(), Status> {
		todo!()
		}
		fn useKernelBinderCallingId(&self) -> Result<(), Status> {
		todo!()
		}
		fn echoAsFile(&self, _: &str) -> Result<ParcelFileDescriptor, Status> {
		todo!()
		}
		fn concatFiles(&self, _: &[ParcelFileDescriptor]) -> Result<ParcelFileDescriptor, Status> {
		todo!()
		}
		fn blockingSendFdOneway(&self, _: &ParcelFileDescriptor) -> Result<(), Status> {
		todo!()
		}
		fn blockingRecvFd(&self) -> Result<ParcelFileDescriptor, Status> {
		todo!()
		}
		fn blockingSendIntOneway(&self, _: i32) -> Result<(), Status> {
		todo!()
		}
		fn blockingRecvInt(&self) -> Result<i32, Status> {
		todo!()
		}
		}

libs/binder/trusty/rust/binder_rpc_test/binder_rpc_test_session/rules.mk

0 → 100644

+32 −0

Original line number	Diff line number	Diff line
		# Copyright (C) 2023 The Android Open Source Project
		#
		# Licensed under the Apache License, Version 2.0 (the "License");
		# you may not use this file except in compliance with the License.
		# You may obtain a copy of the License at
		#
		# http://www.apache.org/licenses/LICENSE-2.0
		#
		# Unless required by applicable law or agreed to in writing, software
		# distributed under the License is distributed on an "AS IS" BASIS,
		# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		# See the License for the specific language governing permissions and
		# limitations under the License.
		#

		LOCAL_DIR := $(GET_LOCAL_DIR)
		LIBBINDER_DIR := $(LOCAL_DIR)/../../../..

		MODULE := $(LOCAL_DIR)

		MODULE_SRCS := $(LOCAL_DIR)/lib.rs

		MODULE_CRATE_NAME := binder_rpc_test_session

		MODULE_LIBRARY_DEPS += \
		$(LIBBINDER_DIR)/trusty/rust \
		$(LIBBINDER_DIR)/trusty/rust/rpcbinder \
		$(LOCAL_DIR)/../aidl \
		$(call FIND_CRATE,log) \
		trusty/user/base/lib/trusty-std \

		include make/library.mk

libs/binder/trusty/rust/binder_rpc_test/main.rs

+184 −10

Original line number	Diff line number	Diff line
		@@ -15,8 +15,11 @@
		*/
		#![cfg(test)]

		use binder::{IBinder, Strong};
		use binder_rpc_test_aidl::aidl::IBinderRpcTest::IBinderRpcTest;
		use binder::{BinderFeatures, IBinder, Status, StatusCode, Strong};
		use binder_rpc_test_aidl::aidl::IBinderRpcSession::{BnBinderRpcSession, IBinderRpcSession};
		use binder_rpc_test_aidl::aidl::IBinderRpcTest::{BnBinderRpcTest, IBinderRpcTest};
		use binder_rpc_test_session::MyBinderRpcSession;
		use libc::{clock_gettime, CLOCK_REALTIME};
		use rpcbinder::RpcSession;
		use trusty_std::ffi::{CString, FallibleCString};

		@@ -25,19 +28,190 @@ test::init!();
		const SERVICE_PORT: &str = "com.android.trusty.binderRpcTestService.V1";
		const RUST_SERVICE_PORT: &str = "com.android.trusty.rust.binderRpcTestService.V1";

		macro_rules! service_test {
		($c_name:ident, $rust_name:ident, $body:expr) => {
		#[test]
		fn $c_name() {
		$body(get_service(SERVICE_PORT))
		}
		#[test]
		fn $rust_name() {
		$body(get_service(RUST_SERVICE_PORT))
		}
		};
		}

		fn get_service(port: &str) -> Strong<dyn IBinderRpcTest> {
		let port = CString::try_new(port).expect("Failed to allocate port name");
		RpcSession::new().setup_trusty_client(port.as_c_str()).expect("Failed to create session")
		}

		#[test]
		fn ping() {
		let srv = get_service(SERVICE_PORT);
		assert_eq!(srv.as_binder().ping_binder(), Ok(()));
		fn expect_sessions(expected: i32, srv: &Strong<dyn IBinderRpcTest>) {
		let count = srv.getNumOpenSessions();
		assert!(count.is_ok());
		assert_eq!(expected, count.unwrap());
		}

		#[test]
		fn ping_rust() {
		let srv = get_service(RUST_SERVICE_PORT);
		fn get_time_ns() -> u64 {
		let mut ts = libc::timespec { tv_sec: 0, tv_nsec: 0 };

		// Safety: Passing valid pointer to variable ts which lives past end of call
		assert_eq!(unsafe { clock_gettime(CLOCK_REALTIME, &mut ts) }, 0);

		ts.tv_sec as u64 * 1_000_000_000u64 + ts.tv_nsec as u64
		}

		fn get_time_ms() -> u64 {
		get_time_ns() / 1_000_000u64
		}

		// ----------

		service_test! {ping, ping_rust, \|srv: Strong<dyn IBinderRpcTest>\| {
		assert_eq!(srv.as_binder().ping_binder(), Ok(()));
		}}

		service_test! {send_something_oneway, send_something_oneway_rust, \|srv: Strong<dyn IBinderRpcTest>\| {
		assert_eq!(srv.sendString("Foo"), Ok(()));
		}}

		service_test! {send_and_get_result_back, send_and_get_result_back_rust, \|srv: Strong<dyn IBinderRpcTest>\| {
		assert_eq!(srv.doubleString("Foo"), Ok(String::from("FooFoo")));
		}}

		service_test! {send_and_get_result_back_big, send_and_get_result_back_big_rust, \|srv: Strong<dyn IBinderRpcTest>\| {
		let single_len = 512;
		let single = "a".repeat(single_len);
		assert_eq!(srv.doubleString(&single), Ok(String::from(single.clone() + &single)));
		}}

		service_test! {invalid_null_binder_return, invalid_null_binder_return_rust, \|srv: Strong<dyn IBinderRpcTest>\| {
		let binder = srv.getNullBinder();
		assert!(binder == Err(Status::from(StatusCode::UNEXPECTED_NULL)) \|\| binder == Err(Status::from(StatusCode::UNKNOWN_TRANSACTION)));
		}}

		service_test! {call_me_back, call_me_back_rust, \|srv: Strong<dyn IBinderRpcTest>\| {
		let binder =
		BnBinderRpcSession::new_binder(MyBinderRpcSession::new("Foo"), BinderFeatures::default())
		.as_binder();
		let result = srv.pingMe(&binder);
		assert_eq!(result, Ok(0));
		}}

		service_test! {repeat_binder, repeat_binder_rust, \|srv: Strong<dyn IBinderRpcTest>\| {
		let in_binder =
		BnBinderRpcSession::new_binder(MyBinderRpcSession::new("Foo"), BinderFeatures::default())
		.as_binder();
		let result = srv.repeatBinder(Some(&in_binder));
		assert_eq!(result.unwrap().unwrap(), in_binder);
		}}

		service_test! {repeat_their_binder, repeat_their_binder_rust, \|srv: Strong<dyn IBinderRpcTest>\| {
		let session = srv.openSession("Test");
		assert!(session.is_ok());

		let in_binder = session.unwrap().as_binder();
		let out_binder = srv.repeatBinder(Some(&in_binder));
		assert_eq!(out_binder.unwrap().unwrap(), in_binder);
		}}

		service_test! {hold_binder, hold_binder_rust, \|srv: Strong<dyn IBinderRpcTest>\| {
		let name = "Foo";

		let binder =
		BnBinderRpcSession::new_binder(MyBinderRpcSession::new(name), BinderFeatures::default())
		.as_binder();
		assert!(srv.holdBinder(Some(&binder)).is_ok());

		let held = srv.getHeldBinder();
		assert!(held.is_ok());
		let held = held.unwrap();
		assert!(held.is_some());
		let held = held.unwrap();
		assert_eq!(binder, held);

		let session = held.into_interface::<dyn IBinderRpcSession>();
		assert!(session.is_ok());

		let session_name = session.unwrap().getName();
		assert!(session_name.is_ok());
		let session_name = session_name.unwrap();
		assert_eq!(session_name, name);

		assert!(srv.holdBinder(None).is_ok());
		}}

		service_test! {nested_transactions, nested_transactions_rust, \|srv: Strong<dyn IBinderRpcTest>\| {
		let binder =
		BnBinderRpcTest::new_binder(MyBinderRpcSession::new("Nest"), BinderFeatures::default());
		assert!(srv.nestMe(&binder, 10).is_ok());
		}}

		service_test! {same_binder_equality, same_binder_equality_rust, \|srv: Strong<dyn IBinderRpcTest>\| {
		let a = srv.alwaysGiveMeTheSameBinder();
		assert!(a.is_ok());

		let b = srv.alwaysGiveMeTheSameBinder();
		assert!(b.is_ok());

		assert_eq!(a.unwrap(), b.unwrap());
		}}

		service_test! {single_session, single_session_rust, \|srv: Strong<dyn IBinderRpcTest>\| {
		let session = srv.openSession("aoeu");
		assert!(session.is_ok());
		let session = session.unwrap();
		let name = session.getName();
		assert!(name.is_ok());
		assert_eq!(name.unwrap(), "aoeu");

		let count = srv.getNumOpenSessions();
		assert!(count.is_ok());
		assert_eq!(count.unwrap(), 1);

		drop(session);
		let count = srv.getNumOpenSessions();
		assert!(count.is_ok());
		assert_eq!(count.unwrap(), 0);
		}}

		service_test! {many_session, many_session_rust, \|srv: Strong<dyn IBinderRpcTest>\| {
		let mut sessions = Vec::new();

		for i in 0..15 {
		expect_sessions(i, &srv);

		let session = srv.openSession(&(i.to_string()));
		assert!(session.is_ok());
		sessions.push(session.unwrap());
		}

		expect_sessions(sessions.len() as i32, &srv);

		for i in 0..sessions.len() {
		let name = sessions[i].getName();
		assert!(name.is_ok());
		assert_eq!(name.unwrap(), i.to_string());
		}

		expect_sessions(sessions.len() as i32, &srv);

		while !sessions.is_empty() {
		sessions.pop();

		expect_sessions(sessions.len() as i32, &srv);
		}

		expect_sessions(0, &srv);
		}}

		service_test! {one_way_call_does_not_wait, one_way_call_does_not_wait_rust, \|srv: Strong<dyn IBinderRpcTest>\| {
		let really_long_time_ms = 100;
		let sleep_ms = really_long_time_ms * 5;

		let before = get_time_ms();
		let _ = srv.sleepMsAsync(sleep_ms);
		let after = get_time_ms();

		assert!(after < before + really_long_time_ms as u64);
		}}

libs/binder/trusty/rust/binder_rpc_test/manifest.json

+1 −1

Original line number	Diff line number	Diff line
		{
		"uuid": "91eed949-8a9e-4569-9c83-5935fb624025",
		"app_name": "rust_binder_rpc_test",
		"min_heap": 16384,
		"min_heap": 32768,
		"min_stack": 16384,
		"mgmt_flags": {
		"non_critical_app": true

libs/binder/trusty/rust/binder_rpc_test/rules.mk

+2 −0

Original line number	Diff line number	Diff line
		@@ -26,6 +26,8 @@ MODULE_LIBRARY_DEPS += \
		$(LIBBINDER_DIR)/trusty/rust \
		$(LIBBINDER_DIR)/trusty/rust/rpcbinder \
		$(LOCAL_DIR)/aidl \
		$(LOCAL_DIR)/binder_rpc_test_session \
		$(call FIND_CRATE,log) \
		trusty/user/base/lib/trusty-std \

		MODULE_RUST_TESTS := true