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/*
* Copyright (C) 2020 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 <sys/socket.h>
#include <unistd.h>
// Needs to be included after sys/socket.h
#include <linux/vm_sockets.h>
#include <iostream>
#include <optional>
#include "android-base/file.h"
#include "android-base/logging.h"
#include "android-base/parseint.h"
#include "android-base/unique_fd.h"
#include "virt/VirtualizationTest.h"
using namespace android::base;
using namespace android::os;
namespace virt {
static constexpr int kGuestPort = 45678;
static constexpr const char kVmConfigPath[] = "/data/local/tmp/virt-test/vsock_config.json";
static constexpr const char kTestMessage[] = "HelloWorld";
TEST_F(VirtualizationTest, TestVsock) {
binder::Status status;
unique_fd server_fd(TEMP_FAILURE_RETRY(socket(AF_VSOCK, SOCK_STREAM, 0)));
ASSERT_GE(server_fd, 0) << strerror(errno);
struct sockaddr_vm server_sa = (struct sockaddr_vm){
.svm_family = AF_VSOCK,
.svm_port = kGuestPort,
.svm_cid = VMADDR_CID_ANY,
};
int ret = TEMP_FAILURE_RETRY(bind(server_fd, (struct sockaddr *)&server_sa, sizeof(server_sa)));
ASSERT_EQ(ret, 0) << strerror(errno);
LOG(INFO) << "Listening on port " << kGuestPort << "...";
ret = TEMP_FAILURE_RETRY(listen(server_fd, 1));
ASSERT_EQ(ret, 0) << strerror(errno);
sp<IVirtualMachine> vm;
unique_fd vm_config_fd(open(kVmConfigPath, O_RDONLY | O_CLOEXEC));
status =
mVirtManager->startVm(ParcelFileDescriptor(std::move(vm_config_fd)), std::nullopt, &vm);
ASSERT_TRUE(status.isOk()) << "Error starting VM: " << status;
int32_t cid;
status = vm->getCid(&cid);
ASSERT_TRUE(status.isOk()) << "Error getting CID: " << status;
LOG(INFO) << "VM starting with CID " << cid;
LOG(INFO) << "Accepting connection...";
struct sockaddr_vm client_sa;
socklen_t client_sa_len = sizeof(client_sa);
unique_fd client_fd(
TEMP_FAILURE_RETRY(accept(server_fd, (struct sockaddr *)&client_sa, &client_sa_len)));
ASSERT_GE(client_fd, 0) << strerror(errno);
LOG(INFO) << "Connection from CID " << client_sa.svm_cid << " on port " << client_sa.svm_port;
LOG(INFO) << "Reading message from the client...";
std::string msg;
ASSERT_TRUE(ReadFdToString(client_fd, &msg));
LOG(INFO) << "Received message: " << msg;
ASSERT_EQ(msg, kTestMessage);
}
} // namespace virt