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/*
* Copyright (C) 2019 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.
*/
#include <BnBinderVendorDoubleLoadTest.h>
#include <aidl/BnBinderVendorDoubleLoadTest.h>
#include <aidl/android/os/IServiceManager.h>
#include <android-base/logging.h>
#include <android-base/properties.h>
#include <android-base/strings.h>
#include <android/binder_ibinder.h>
#include <android/binder_manager.h>
#include <android/binder_process.h>
#include <android/binder_stability.h>
#include <binder/IPCThreadState.h>
#include <binder/IServiceManager.h>
#include <binder/ProcessState.h>
#include <binder/Stability.h>
#include <binder/Status.h>
#include <gtest/gtest.h>
#include <sys/prctl.h>
using namespace android;
using ::android::base::EndsWith;
using ::android::base::GetProperty;
using ::android::base::Split;
using ::android::binder::Status;
using ::android::internal::Stability;
using ::ndk::ScopedAStatus;
using ::ndk::SharedRefBase;
using ::ndk::SpAIBinder;
static const std::string kLocalNdkServerName = "NdkServer-local-IBinderVendorDoubleLoadTest";
static const std::string kRemoteNdkServerName = "NdkServer-remote-IBinderVendorDoubleLoadTest";
class NdkServer : public aidl::BnBinderVendorDoubleLoadTest {
ScopedAStatus RepeatString(const std::string& in, std::string* out) override {
*out = in;
return ScopedAStatus::ok();
}
};
class CppServer : public BnBinderVendorDoubleLoadTest {
Status RepeatString(const std::string& in, std::string* out) override {
*out = in;
return Status::ok();
}
};
TEST(DoubleBinder, VendorCppCantCallIntoSystem) {
Vector<String16> services = defaultServiceManager()->listServices();
EXPECT_TRUE(services.empty());
}
TEST(DoubleBinder, VendorCppCantRegisterService) {
sp<CppServer> cppServer = new CppServer;
status_t status = defaultServiceManager()->addService(String16("anything"), cppServer);
EXPECT_EQ(EX_TRANSACTION_FAILED, status);
}
TEST(DoubleBinder, CppVendorCantManuallyMarkVintfStability) {
// this test also implies that stability logic is turned on in vendor
ASSERT_DEATH(
{
sp<IBinder> binder = new CppServer();
Stability::markVintf(binder.get());
},
"Should only mark known object.");
}
TEST(DoubleBinder, NdkVendorCantManuallyMarkVintfStability) {
// this test also implies that stability logic is turned on in vendor
ASSERT_DEATH(
{
std::shared_ptr<NdkServer> ndkServer = SharedRefBase::make<NdkServer>();
AIBinder_markVintfStability(ndkServer->asBinder().get());
},
"Should only mark known object.");
}
TEST(DoubleBinder, CallIntoNdk) {
for (const std::string& serviceName : {kLocalNdkServerName, kRemoteNdkServerName}) {
SpAIBinder binder = SpAIBinder(AServiceManager_checkService(serviceName.c_str()));
ASSERT_NE(nullptr, binder.get()) << serviceName;
EXPECT_EQ(STATUS_OK, AIBinder_ping(binder.get())) << serviceName;
std::shared_ptr<aidl::IBinderVendorDoubleLoadTest> server =
aidl::IBinderVendorDoubleLoadTest::fromBinder(binder);
ASSERT_NE(nullptr, server.get()) << serviceName;
EXPECT_EQ(STATUS_OK, AIBinder_ping(server->asBinder().get()));
std::string outString;
ScopedAStatus status = server->RepeatString("foo", &outString);
EXPECT_EQ(STATUS_OK, AStatus_getExceptionCode(status.get()))
<< serviceName << " " << status;
EXPECT_EQ("foo", outString) << serviceName;
}
}
TEST(DoubleBinder, CallIntoSystemStabilityNdk) {
// picking an arbitrary system service
SpAIBinder binder = SpAIBinder(AServiceManager_checkService("manager"));
ASSERT_NE(nullptr, binder.get());
// can make stable transaction to system server
EXPECT_EQ(STATUS_OK, AIBinder_ping(binder.get()));
using aidl::android::os::IServiceManager;
std::shared_ptr<IServiceManager> manager = IServiceManager::fromBinder(binder);
ASSERT_NE(nullptr, manager.get());
std::vector<std::string> services;
ASSERT_EQ(
STATUS_BAD_TYPE,
manager->listServices(IServiceManager::DUMP_FLAG_PRIORITY_ALL, &services).getStatus());
}
void initDrivers() {
// Explicitly instantiated with the same driver that system would use.
// __ANDROID_VNDK__ right now uses /dev/vndbinder by default.
ProcessState::initWithDriver("/dev/binder");
ProcessState::self()->startThreadPool();
ABinderProcess_startThreadPool();
}
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
if (fork() == 0) {
// child process
prctl(PR_SET_PDEATHSIG, SIGHUP);
initDrivers();
// REMOTE SERVERS
std::shared_ptr<NdkServer> ndkServer = SharedRefBase::make<NdkServer>();
CHECK(STATUS_OK == AServiceManager_addService(ndkServer->asBinder().get(),
kRemoteNdkServerName.c_str()));
// OR sleep forever or whatever, it doesn't matter
IPCThreadState::self()->joinThreadPool(true);
exit(1); // should not reach
}
sleep(1);
initDrivers();
// LOCAL SERVERS
std::shared_ptr<NdkServer> ndkServer = SharedRefBase::make<NdkServer>();
CHECK(STATUS_OK ==
AServiceManager_addService(ndkServer->asBinder().get(), kLocalNdkServerName.c_str()));
return RUN_ALL_TESTS();
}
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